The Impact of Biogenic VOC Emissions on Tropospheric Ozone Formation in the Mid-Atlantic Region...
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The Impact of Biogenic VOC Emissions on Tropospheric Ozone Formation in the Mid- Atlantic Region Michelle L. Bell Yale University Hugh Ellis Johns Hopkins University Air Pollution 2005 May 17, 2005
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Transcript of The Impact of Biogenic VOC Emissions on Tropospheric Ozone Formation in the Mid-Atlantic Region...
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The Impact of Biogenic VOC Emissions on Tropospheric Ozone Formation in the Mid-Atlantic RegionMichelle L. BellYale UniversityHugh EllisJohns Hopkins UniversityAir Pollution 2005May 17, 2005
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Tropospheric Ozone (O3)Secondary pollutant formed by complex chemical reactions including NOx and Volatile Organic Compounds (VOCs)Linked to human health effects including decreased lung function and increased emergency room visitsSubject to NAAQS under the U.S. Clean Air ActEstimating O3 concentrations important from a public health and regulatory standpoint
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Attainment of 8-Hour StandardNovember 2004Source: EPA Greenbook
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Air Quality ModelingLand-UseEmissions:TransportationIndustryBiogenicMeteorologyWindPrecipitationSolar RadiationInputs:Terrain
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CMAQ (Community Multi-scale Air Quality)SASArc/InfoModels-3 FrameworkLUPROC (Land-Use Processor)ECIP (Emissions-Chemistry Interface Processor)JPROC (Photolysis Rate Processor)ICON (Initial Conditions Processor)BCON (Boundary Conditions Processor)CCTM(CMAQ Chemical Transport Model)MEPPS (Models-3 Emissions Processing and Projection System)INPRO(Input Processor)EMPRO(Emission Processor)OUTPRO(Output Processor)MEPRO(Models-3 Emissions Projections Processor)IDA(Inventory Data Processor)MCIP (Meteorology-Chemistry Interface Processor)MM5(Meteorological Modeling System)
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Sample Output
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Case Study Area (Mid-Atlantic, USA)
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12-km Resolution Domain42 Rows69 Columns2898 Cells
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4-km Resolution Domain (Maryland)45 Rows60 Columns2700 Cells
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Model EvaluationHow well does the modeling system perform?Are ozone estimates reasonable approximations of monitor values?Several approaches applied comparing model estimates to monitor measurements (Bell & Ellis Atmospheric Environment 2004)E.g. Mean bias = 6.2 ppb
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Comparison of Values at Hour of Maximum ConcentrationJuly 13 to 15, 1995
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Comparison of Model Estimates and Measurements
Chart1
6064.141
5252.889
5149.654
5153.184
5149.157
4747.141
4148.317
4146.502
3243.277
3140.952
2738.577
2834.934
3231.522
4635.968
6146.305
7055.664
8068.408
8980.43
9987.333
10290.288
10391.152
9891.801
8891.71
7589.205
6784.783
6575.076
6272.638
6169.875
5663.918
4460.251
3621.716
296.573
1414.804
151.694
2023.83
2937.367
3841.058
5042.468
33052.374999999950.087
33052.416666666659.919
6762.557
7063.638
7266.194
7069.214
6571.173
6172.435
6571.504
6069.978
3568.375
5666.49
6260.338
6049.165
5064.446
5963.712
5360.677
4256.361
4452.923
3547.329
2840.469
3932.08
4443.023
6263.815
7282.429
7294.179
81103.699
96110.599
118113.655
131101.288
12596.651
11397.685
9398.788
79101.818
71101.579
Location: Millington, Maryland
Monitor Measurements
Model Estimates
Local Time
O3 (ppb)
Figure4
Figure 4. Comparison of Model-Estimated Ozone Concentrations and Monitor Measurements
Figure4
6064.141
5252.889
5149.654
5153.184
5149.157
4747.141
4148.317
4146.502
3243.277
3140.952
2738.577
2834.934
3231.522
4635.968
6146.305
7055.664
8068.408
8980.43
9987.333
10290.288
10391.152
9891.801
8891.71
7589.205
6784.783
6575.076
6272.638
6169.875
5663.918
4460.251
3621.716
296.573
1414.804
151.694
2023.83
2937.367
3841.058
5042.468
33052.374999999950.087
33052.416666666659.919
6762.557
7063.638
7266.194
7069.214
6571.173
6172.435
6571.504
6069.978
3568.375
5666.49
6260.338
6049.165
5064.446
5963.712
5360.677
4256.361
4452.923
3547.329
2840.469
3932.08
4443.023
6263.815
7282.429
7294.179
81103.699
96110.599
118113.655
131101.288
12596.651
11397.685
9398.788
79101.818
71101.579
Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
Millington, MD
Figure5a
3815.19
5216.981
4628.224
4628.456
4417.655
432.097
400.004
380
330
280
210.381
33051.251.53
2110.788
1034.956
4851.042
8559.422
9865.219
8868.839
8370.157
7969.372
7064.506
4844.508
2539.712
3950.407
3310.093
210.181
200
220
300
273.947
1722.298
1718.679
1910.125
122.08
120.856
142.905
1115.792
2832.009
3743.765
5654.447
7964.591
7669.907
9473.034
9874.987
10477.482
11979.266
10374.606
9166.267
7137.139
420.178
400.055
434.473
310.383
360
380
450
390
240
110.287
33053.24999999990.883
1012.539
3545.704
6973.26
8678.622
9676.689
9177.194
8379.87
8081.913
7784.409
7783.831
7653.609
705.595
577.132
Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
S. 18th and Hayes St., VA
Figure5b
8011.32
710.212
610
620
480
410
490
500
330
280
200.191
201.571
158.387
2119.99
5541.625
7257.881
9369.173
12077.435
13776.216
12972.916
11979.043
11676.916
10567.073
9349.122
8026.21
596.196
550.52
410.108
260.023
160
90
90
170
100
120.451
153.74
3118.112
4936.207
7650.642
9166.044
9578.281
10383.053
10082.427
10585.274
10890.823
11188.624
11590.619
10196.177
8881.63
6852.769
5227.43
4513.693
4314.087
3517.298
270.856
402.866
373.053
330.937
411.982
519.48
6226.353
8143.012
10258.873
11777.252
12280.982
12782.111
11581.325
11878.134
12268.707
12072.73
11979.546
10979.956
10277.214
Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
Lake Clifton, MD
Figure5c
9257.534
8146.163
7841.695
6735.202
5230.264
5429.942
5433.163
5232.455
4431.709
3830.2
3826.195
3822.34
3919.561
4523.061
5842.666
7660.525
9572.344
11085.23
10995.055
10898.801
10795.769
10089.53
9782.586
8972.188
8162.8
7553.78
7046.078
5441.961
4741.113
4140.254
3536.031
2524.497
284.707
250.014
241.057
224.991
3117.251
3839.027
6859.773
8379.168
9495.355
97103.322
106108.933
109111.774
106116.06
132122.841
143124.735
127116.777
117108.021
9099.506
7873.015
6938.762
6326.701
5647.842
5557.154
5557.182
6148.737
6041.342
6134.835
6431.46
7240.424
9055.23
10271.375
11484.471
11483.272
10980.5
10780.649
12384.633
17987.377
12790.737
10994.107
112112.693
81123.287
Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
Aldino, MD
Figures6a_6b
Figure 5a. Maximum Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor Measurements
Figures6a_6b
52.021Garrison
71.697Ft. Holabird
Lake Clifton70.788
63.49157.37
62.72460.541
39.98964.216
40.62572.538
40.76964.676
33.37554.235
62.7861.476
56.34562.657
50.90360.18
52.99264.422
48.95954.182
54.84291.623
Cub Run Treatment Plant84.943
James S. Long Park97.371
Widewater Elementary School80.576
67.456Phelps Wildlife Management Area
64.40561.986
56.08260.357
5963.927
60.83571.057
65.82148.894
52.06936.678
59.20273.266
79.97435.135
Maryland
Virginia
Delaware
1990
1995
Max |Monitor Measurement - Model Estimate|[O3 ppb]
Figure7a
Figure 5b. Minimum Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor Measurements
Figure7a
0.183Garrison
0.79Ft. Holabird
Lake Clifton1.01
0.5260.809
0.020.036
0.1420.137
0.291.133
1.0451.302
0.1410.308
0.0450.684
0.0110.981
0.2890.003
0.0570.331
0.870.76
0.4420.503
Cub Run Treatment Plant0.303
James S. Long Park0.509
Widewater Elementary School0.08
0.282Phelps Wildlife Management Area
1.5531.514
0.0510.445
0.2140.577
0.4680.432
0.5890.034
0.1890.286
1.7520.519
0.3640.053
Maryland
Virginia
Delaware
1990
1995
Min |Monitor Measurement - Model Estimate|[O3 ppb]
Figure7b
Figure 5c. Average Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor Measurements
Figure7b
15.5787123288Garrison
27.1985753425Ft. Holabird
Lake Clifton31.5496164384
16.235569444420.2590555556
16.789808219216.7752739726
13.895589041115.071
15.650071428626.2787
16.013178082219.612369863
10.233605633816.6181232877
19.047136986318.4495205479
13.769847222219.062
16.827902777818.322369863
18.212666666721.0755342466
16.699333333321.0051780822
19.173042857118.5597123288
Cub Run Treatment Plant24.1999857143
James S. Long Park23.986109589
Widewater Elementary School25.6748472222
18.0699305556Phelps Wildlife Management Area
20.739676056324.6700416667
17.839986111117.7650416667
18.501126760618.8837183099
19.595971428620.446109589
17.287859154920.0214027778
13.705382352913.2268356164
17.625382352915.9515555556
20.333512.5694647887
Maryland
Virginia
Delaware
1990
1995
Avg |Monitor Measurement - Model Estimate|[O3 ppb]
Figures8a_8b
Figure 6a. Comparison of Model-Estimated Ozone Concentrations From
12-km and 4-km Resolution Domains for Greenbelt, Maryland Monitor Location
Figure 6b. Comparison of Model-Estimated Ozone Concentrations From
12-km and 4-km Resolution Domains for Suitland, Maryland Monitor Location
Figures8a_8b
49.73143.92951
45.74338.45752
44.33525.39754
42.15633.05351
38.31436.82243
34.335.61536
28.62529.42933
22.07819.44832
16.3280.86432
11.046025
6.8450.97418
9.2372.44119
19.9579.12525
26.16533.21437
44.4659.13162
68.42274.37584
81.30976.729103
81.26176.49107
81.10777.791103
83.63380.18594
86.39781.70496
86.83383.04583
77.4972.12261
58.17358.7237
40.22959.75623
24.14160.69619
18.49845.2069
10.50417.5544
0.50407
0.0021.5836
0.00237.98311
0.02644.1365
0.14541.9694
0.02322.8774
1.3255.0915
4.69813.31613
17.81926.23827
32.70936.90941
44.73551.58757
58.06462.96878
67.87871.75287
75.19373.139107
78.4273.428120
78.7574.131129
78.89177.214120
81.0182.22145
83.03482.368139
81.42280.897111
58.30866.76391
43.96463.09969
31.70166.12148
22.10156.75935
9.44653.08227
0.2352.04519
0.01840.54922
0.00828.03915
0.0021.02634
0027
1.2030.63819
3.5811.67318
31.2644.61928
51.78218.80440
72.54464.0860
97.7794.07896
101.20899.77198
98.55293.066102
94.25292.44695
95.35996.79190
98.22100.89789
100.575100.67391
101.65895.0885
97.67599.3280
83.85393.58266
Model Estimates - 12 km grid cells
Model Estimates - 4 km grid cells
Monitor Measurements
Local Time
O3 [ppb]
Figures9a_9b
62.9739.61265
45.73330.86667
32.60719.74665
25.3826.78662
22.46836.39563
22.85233.93161
20.9227.93558
18.17319.50351
14.22112.01945
7.6449.73937
2.2329.37625
4.93416.8225
16.67531.7238
34.01145.41153
53.6956.98267
68.01970.62279
80.95181.21480
89.90285.04677
96.43387.57583
99.60791.05590
100.16696.41995
99.55497.06593
96.0489.58886
88.08975.38672
72.90971.94463
67.53975.18152
66.09569.77545
56.91553.31644
40.36535.08947
30.69322.52849
26.37121.17443
23.18628.03240
21.13932.55642
15.12932.05338
6.97227.41834
13.6225.90736
27.04932.9137
34.61240.29628
46.38352.31458
63.14568.81182
77.92184.214105
92.91895.041120
104.381102.534124
109.844105.709119
113.003109.184108
113.676112.3105
113.09113.49498
111.656109.54185
99.824100.3266
80.26397.70450
63.01897.3740
59.04988.89438
54.363.135
46.06729.31235
38.36910.26632
32.9160.48329
35.1750.0131
32.597025
15.9050.39124
16.0873.09124
33.01533.96544
50.04448.61361
65.87143.08476
80.95259.578101
94.96390.346123
105.83106.537134
111.433113.097117
111.862111.191112
108.599116.02634895.6249999998
104.698127.72973
99.85125.08775
95.46396.65253
81.24694.13456
Model Estimates - 12 km grid cells
Model Estimates - 4 km grid cells
Monitor Measurements
Local Time
O3 [ppb]
49.73143.92951
45.74338.45752
44.33525.39754
42.15633.05351
38.31436.82243
34.335.61536
28.62529.42933
22.07819.44832
16.3280.86432
11.046025
6.8450.97418
9.2372.44119
19.9579.12525
26.16533.21437
44.4659.13162
68.42274.37584
81.30976.729103
81.26176.49107
81.10777.791103
83.63380.18594
86.39781.70496
86.83383.04583
77.4972.12261
58.17358.7237
40.22959.75623
24.14160.69619
18.49845.2069
10.50417.5544
0.50407
0.0021.5836
0.00237.98311
0.02644.1365
0.14541.9694
0.02322.8774
1.3255.0915
4.69813.31613
17.81926.23827
32.70936.90941
44.73551.58757
58.06462.96878
67.87871.75287
75.19373.139107
78.4273.428120
78.7574.131129
78.89177.214120
81.0182.22145
83.03482.368139
81.42280.897111
58.30866.76391
43.96463.09969
31.70166.12148
22.10156.75935
9.44653.08227
0.2352.04519
0.01840.54922
0.00828.03915
0.0021.02634
0027
1.2030.63819
3.5811.67318
31.2644.61928
51.78218.80440
72.54464.0860
97.7794.07896
101.20899.77198
98.55293.066102
94.25292.44695
95.35996.79190
98.22100.89789
100.575100.67391
101.65895.0885
97.67599.3280
83.85393.58266
Model Estimates - 12 km grid cells
Model Estimates - 4 km grid cells
Monitor Measurements
Local Time
O3 [ppb]
Figure 7a. Difference in Model-Estimated Ozone Concentrations Using Baseline Emissions Scenario 1
and Modified Emissions Scenario 2
6.1116.5636.5218.6613.4230.8560.6642.99210.3427.9417.6316.2929.6193.54
2.0315.9942.3424.8432.2572.1331.4071.2543.1964.2255.9058.1732.7930.256
1.5483.171.4650.0022.3476.8841.3881.1830.8560.1433.2912.6252.020.001
1.5631.8864.49901.9724.0821.111.3480.9050.0912.422.0672.1920
1.4322.0042.27401.9041.750.3411.6521.1620.0822.8211.9632.1890
1.0341.7451.79100.9282.451-0.6911.2281.3550.1651.871.8462.080
0.491.412.03200.0012.429-1.8610.5351.1050.2850.2461.6110.9640
-0.290.9722.247002.266-2.445-0.0360.3520.210.030.7150.20
-1.4520.450.198001.737-2.588-0.047-0.018-0.4140.0030.055-0.0040
-1.9010.0020.009000.779-2.71300.012-1.22300-0.0310
-1.3180.0460.4750.0670.0060.599-2.4750.0080.017-1.8530.2040-0.2070.007
-0.3960.2841.7840.820.0362.167-1.4470.0310.059-1.8650.580.104-0.2030.05
0.9793.2915.7885.5521.8573.7390.1470.4010.628-0.5365.7271.8651.8181.915
6.44711.2179.2579.42210.5586.1832.9716.7386.7563.55510.1949.427.6210.323
14.416.9298.3018.89215.995.0768.90715.41114.3629.5019.91715.95713.10316.007
17.7889.9240.671.30916.8211.39712.16620.8586.61914.5134.51510.53112.614.703
11.7833.198-0.863-1.11912.5430.7188.69423.4571.46315.8991.0633.17410.2819.825
7.6710.477-0.748-1.2079.877-0.0327.5523.7321.0559.2820.6310.9478.4677.032
5.515-0.208-0.703-0.83210.279-0.3336.83718.2531.144.9640.780.4817.8585.883
4.7450.082-0.873-0.88310.508-0.1437.55612.082.0143.2740.9880.6847.615.421
2.3350.475-0.911-0.95510.7781.088.2449.7142.4152.281.3921.1846.5185.657
2.6310.902-0.231-0.51511.173.8598.4867.33.3862.5912.0773.7785.1066.318
4.3244.8361.4620.6568.9958.1875.315.1685.5353.323.6914.0367.4898.005
2.1672.27514.9548.8690.26212.41-0.5672.1523.4682.2282.7032.6484.6730.004
1.9962.27412.68311.6670.00415.328-0.4873.132.2330.662.1982.0854.1920.008
2.9282.43713.38712.6160.00212.85-1.2880.0353.8721.6372.4073.5453.0430.02
0.814.345.0744.76606.657-2.1927.910.2581.51612.9360.0010.0010.002
0.5879.8152.1412.29202.4111.0494.8174.4181.1458.125.34400
9.0245.1661.521.5984.4740.6520.2242.1581.6594.3454.6266.29810.2030.54
4.8621.8931.5451.5832.9260.4921.0522.0741.0376.0212.5982.1915.323.501
2.9042.2771.7861.0812.1720.7160.0731.8110.964.8561.7011.6542.7432.019
0.0180.3131.2080.8251.3861.2221.0691.2120.8012.5841.0331.9241.7721.394
0.0570.3630.9350.8060.9141.0274.7660.8550.7541.4541.4511.2580.9920.966
0.5550.6331.161.0791.0770.8671.6561.0410.9930.921.3841.310.9451.05
1.4121.241.4951.3921.5451.1041.6531.4441.161.3041.7011.4151.7271.552
2.3642.7012.2962.2552.4681.8563.7822.0981.7442.2013.1542.772.8632.634
4.7875.7634.0063.6483.7173.3866.0653.3182.5093.6515.9286.5975.9154.281
8.7857.7045.6985.1644.2263.4539.8223.4792.5443.4875.4068.8259.3795.52
10.2976.5145.0485.8825.3542.48113.0883.3292.5362.2763.9786.4910.0417.428
7.7513.442.4424.1455.3761.66414.9843.983.2651.6473.23.947.2297.669
5.7692.6171.3172.2473.9111.48712.6014.1063.9071.9233.0883.2196.6026.248
4.8412.3541.0081.2342.8571.98811.4943.5433.9032.5824.4122.9826.8595.408
5.072.7371.2351.0092.1334.44412.1722.0443.5273.128.653.5797.9753.942
6.195.3451.3471.123.5268.19313.8791.2222.9623.27315.2076.6410.4264.212
7.9179.3392.8141.3285.63715.2814.791.3722.7323.09322.53711.31714.9516.5
6.76213.86110.0514.1566.19918.96812.9281.8692.012.37629.05616.28218.0518.205
5.54521.80613.4458.718.59217.1038.9064.1911.6542.28333.0116.44211.3959.727
5.0261.6516.28711.99310.17817.1457.274.5341.252.25431.1627.2526.9720.063
4.6489.20718.90915.1340.69120.1317.627.4810.8031.60526.6535.0737.5970
4.977.3619.8816.875024.5717.449.1895.3831.30219.4814.9167.8210
5.1555.48617.35813.884025.8166.9070.4316.755.7440.1315.3127.2050
5.1175.4944.8390018.76.11808.7225.0530.0085.7026.9040
4.9435.5774.9360011.6055.81109.2874.0204.7233.3410
5.8214.8562.139009.4365.30201.5033.6304.8830.3130
6.3024.6320.0490.00308.0025.66100.2544.16402.8336.1740
5.9220.3320.0010.00300.0224.37400.0284.81004.9040
4.8920.2090.5750.9840.0221.09-4.3570.0280.8415.430.1770.1654.6750.028
5.4910.3061.4633.1320.1191.989-0.0370.111.7816.3510.6710.361.610.139
5.6711.744.4344.0141.4496.8092.1570.432.0277.4751.9331.1224.5721.579
15.197.90112.57811.4439.96919.6426.5532.7296.0748.55417.5788.61912.718.594
20.39121.02520.06817.51616.48919.11510.06111.17913.36710.00416.23222.76912.8416.783
8.42729.08225.60525.09225.7833.4938.88822.58420.2624.719-0.16222.3513.42725.943
-2.9183.3516.36116.89828.154-1.1517.27437.70829.2143.11-3.0784.7680.80621.348
-4.151-2.85-2.201-0.3825.7-2.6173.88141.9930.993.531-4.253-0.2790.8542.982
-4.074-4.096-3.313-2.9041.426-4.0274.57115.65910.6083.751-4.983-1.5860.1420.269
-4.23-4.317-4.484-3.9540.407-4.9996.7943.2352.732-2.365-5.0630.354-0.443-0.423
-3.857-3.817-5.064-5.051-0.36-4.0019.964.362-1.016-4.159-4.5435.1250.131-1.197
-3.708-2.663-4.149-4.752-1.8120.00310.754.151-1.936-4.518-2.8099.1911.431-2.431
-3.643-2.1280.541-2.3023.0433.3076.131.8122.55-4.0664.7766.8181.7161.632
-1.6641.9434.0053.438.2686.458-1.246-0.406-0.3280.3096.2855.9371.8282.991
-3.2262.947.0446.6086.5377.123-1.6134.454-0.7543.8794.2624.8132.3555.387
Davidsonville
Ft. Meade
Garrison
Padonia
Essex
S. Carroll
S. MD
Edgewood
Aldino
Millington
Rockville
Greenbelt
Suitland
Ft. Holabird
Local Time
Figure 7b. Difference in Model-Estimated Ozone Concentrations Using Baseline Emissions Scenario 1
and Modified Emissions Scenario 3
Model Estimated O3 (w/ adjsuted emissions scenario) - O3 (w/ unadjusted emissions) [ppb]
6.1116.5636.5218.6613.4230.8560.6642.99210.3427.9417.6316.2929.6193.54
2.0315.9942.3424.8432.2572.1331.4071.2543.1964.2255.9058.1732.7930.256
1.5483.171.4650.0022.3476.8841.3881.1830.8560.1433.2912.6252.020.001
1.5631.8864.49901.9724.0821.111.3480.9050.0912.422.0672.1920
1.4322.0042.27401.9041.750.3411.6521.1620.0822.8211.9632.1890
1.0341.7451.79100.9282.451-0.6911.2281.3550.1651.871.8462.080
0.491.412.03200.0012.429-1.8610.5351.1050.2850.2461.6110.9640
-0.290.9722.247002.266-2.445-0.0360.3520.210.030.7150.20
-1.4520.450.198001.737-2.588-0.047-0.018-0.4140.0030.055-0.0040
-1.9010.0020.009000.779-2.71300.012-1.22300-0.0310
-1.3180.0460.4750.0670.0060.599-2.4750.0080.017-1.8530.2040-0.2070.007
-0.3960.2841.7840.820.0362.167-1.4470.0310.059-1.8650.580.104-0.2030.05
0.9793.2915.7885.5521.8573.7390.1470.4010.628-0.5365.7271.8651.8181.915
6.44711.2179.2579.42210.5586.1832.9716.7386.7563.55510.1949.427.6210.323
14.416.9298.3018.89215.995.0768.90715.41114.3629.5019.91715.95713.10316.007
17.7889.9240.671.30916.8211.39712.16620.8586.61914.5134.51510.53112.614.703
11.7833.198-0.863-1.11912.5430.7188.69423.4571.46315.8991.0633.17410.2819.825
7.6710.477-0.748-1.2079.877-0.0327.5523.7321.0559.2820.6310.9478.4677.032
5.515-0.208-0.703-0.83210.279-0.3336.83718.2531.144.9640.780.4817.8585.883
4.7450.082-0.873-0.88310.508-0.1437.55612.082.0143.2740.9880.6847.615.421
2.3350.475-0.911-0.95510.7781.088.2449.7142.4152.281.3921.1846.5185.657
2.6310.902-0.231-0.51511.173.8598.4867.33.3862.5912.0773.7785.1066.318
4.3244.8361.4620.6568.9958.1875.315.1685.5353.323.6914.0367.4898.005
2.1672.27514.9548.8690.26212.41-0.5672.1523.4682.2282.7032.6484.6730.004
1.9962.27412.68311.6670.00415.328-0.4873.132.2330.662.1982.0854.1920.008
2.9282.43713.38712.6160.00212.85-1.2880.0353.8721.6372.4073.5453.0430.02
0.814.345.0744.76606.657-2.1927.910.2581.51612.9360.0010.0010.002
0.5879.8152.1412.29202.4111.0494.8174.4181.1458.125.34400
9.0245.1661.521.5984.4740.6520.2242.1581.6594.3454.6266.29810.2030.54
4.8621.8931.5451.5832.9260.4921.0522.0741.0376.0212.5982.1915.323.501
2.9042.2771.7861.0812.1720.7160.0731.8110.964.8561.7011.6542.7432.019
0.0180.3131.2080.8251.3861.2221.0691.2120.8012.5841.0331.9241.7721.394
0.0570.3630.9350.8060.9141.0274.7660.8550.7541.4541.4511.2580.9920.966
0.5550.6331.161.0791.0770.8671.6561.0410.9930.921.3841.310.9451.05
1.4121.241.4951.3921.5451.1041.6531.4441.161.3041.7011.4151.7271.552
2.3642.7012.2962.2552.4681.8563.7822.0981.7442.2013.1542.772.8632.634
4.7875.7634.0063.6483.7173.3866.0653.3182.5093.6515.9286.5975.9154.281
8.7857.7045.6985.1644.2263.4539.8223.4792.5443.4875.4068.8259.3795.52
10.2976.5145.0485.8825.3542.48113.0883.3292.5362.2763.9786.4910.0417.428
7.7513.442.4424.1455.3761.66414.9843.983.2651.6473.23.947.2297.669
5.7692.6171.3172.2473.9111.48712.6014.1063.9071.9233.0883.2196.6026.248
4.8412.3541.0081.2342.8571.98811.4943.5433.9032.5824.4122.9826.8595.408
5.072.7371.2351.0092.1334.44412.1722.0443.5273.128.653.5797.9753.942
6.195.3451.3471.123.5268.19313.8791.2222.9623.27315.2076.6410.4264.212
7.9179.3392.8141.3285.63715.2814.791.3722.7323.09322.53711.31714.9516.5
6.76213.86110.0514.1566.19918.96812.9281.8692.012.37629.05616.28218.0518.205
5.54521.80613.4458.718.59217.1038.9064.1911.6542.28333.0116.44211.3959.727
5.0261.6516.28711.99310.17817.1457.274.5341.252.25431.1627.2526.9720.063
4.6489.20718.90915.1340.69120.1317.627.4810.8031.60526.6535.0737.5970
4.977.3619.8816.875024.5717.449.1895.3831.30219.4814.9167.8210
5.1555.48617.35813.884025.8166.9070.4316.755.7440.1315.3127.2050
5.1175.4944.8390018.76.11808.7225.0530.0085.7026.9040
4.9435.5774.9360011.6055.81109.2874.0204.7233.3410
5.8214.8562.139009.4365.30201.5033.6304.8830.3130
6.3024.6320.0490.00308.0025.66100.2544.16402.8336.1740
5.9220.3320.0010.00300.0224.37400.0284.81004.9040
4.8920.2090.5750.9840.0221.09-4.3570.0280.8415.430.1770.1654.6750.028
5.4910.3061.4633.1320.1191.989-0.0370.111.7816.3510.6710.361.610.139
5.6711.744.4344.0141.4496.8092.1570.432.0277.4751.9331.1224.5721.579
15.197.90112.57811.4439.96919.6426.5532.7296.0748.55417.5788.61912.718.594
20.39121.02520.06817.51616.48919.11510.06111.17913.36710.00416.23222.76912.8416.783
8.42729.08225.60525.09225.7833.4938.88822.58420.2624.719-0.16222.3513.42725.943
-2.9183.3516.36116.89828.154-1.1517.27437.70829.2143.11-3.0784.7680.80621.348
-4.151-2.85-2.201-0.3825.7-2.6173.88141.9930.993.531-4.253-0.2790.8542.982
-4.074-4.096-3.313-2.9041.426-4.0274.57115.65910.6083.751-4.983-1.5860.1420.269
-4.23-4.317-4.484-3.9540.407-4.9996.7943.2352.732-2.365-5.0630.354-0.443-0.423
-3.857-3.817-5.064-5.051-0.36-4.0019.964.362-1.016-4.159-4.5435.1250.131-1.197
-3.708-2.663-4.149-4.752-1.8120.00310.754.151-1.936-4.518-2.8099.1911.431-2.431
-3.643-2.1280.541-2.3023.0433.3076.131.8122.55-4.0664.7766.8181.7161.632
-1.6641.9434.0053.438.2686.458-1.246-0.406-0.3280.3096.2855.9371.8282.991
-3.2262.947.0446.6086.5377.123-1.6134.454-0.7543.8794.2624.8132.3555.387
Davidsonville
Ft. Meade
Garrison
Padonia
Essex
S. Carroll
S. MD
Edgewood
Aldino
Millington
Rockville
Greenbelt
Suitland
Ft. Holabird
Local Time
Figure 8a. Maximum Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor Measurements, Using Various Emissions Scenarios
Figure 8b. Average Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor Measurements, Using Various Emissions Scenarios
Model Estimated O3 (w/ adjsuted emissions scenario) - O3 (w/ unadjusted emissions) [ppb]
59.64660.1563.491
72.41367.09862.724
46.22743.17539.989
48.02248.18840.625
57.36852.76240.769
43.02135.65833.375
49.96156.1462.78
61.52658.31152.021
56.21554.69556.345
64.73468.70671.697
49.4750.21250.903
52.89452.95752.992
46.92446.30348.959
45.89452.23854.842
Max |Monitor Measurement - Model Estimate|[O3 ppb]
Model Estimates:
Using Adjusted Emissions Scenario 2
Using Adjusted Emissions Scenario 1
Using Unadjusted Emissions Scenario
Monitor Location
16.235569444416.481763888916.7168472222
16.789808219217.941931506821.2543835616
13.895589041115.423452054815.6892191781
15.650071428617.814971428619.4380285714
16.013178082217.365465753416.8973835616
10.233605633810.818352112713.5702535211
19.047136986319.265479452118.9338493151
15.578712328818.258410958919.6601643836
13.769847222213.379902777814.107375
27.198575342526.698068493225.6354794521
16.827902777818.080972222219.6541527778
18.212666666717.432055555618.2276111111
16.699333333316.960063492117.9296984127
19.173042857118.249142857117.8094
Max |Monitor Measurement - Model Estimate|[O3 ppb]
Model Estimates:
Using Adjusted Emissions Scenario 2
Using Adjusted Emissions Scenario 1
Using Unadjusted Emissions Scenario
Monitor Location
Figure 9a. Comparison of 8-Hour Average Model-Estimated Ozone Concentrations
and Monitor Measurements for Millington, Maryland
Figure 9b. Comparison of 8-Hour Average Model-Estimated Ozone Concentrations
and Monitor Measurements for Davidsonville, Maryland
49.2551.373125
45.7548.765125
43.12547.273
40.12545.888375
37.2543.607125
34.87541.40275
34.7540.006125
37.2539.754625
40.87540.899875
46.87544.04125
54.12548.976
63.12555.0705
72.37561.98975
81.2569.4435
87.7576.422625
91.12582.09825
91.7586.290875
90.12588.33775
87.12587.6685
82.585.831625
77.37583.28
71.579.87575
64.7575.932
58.2567.18275
52.556.85375
45.87548.106375
39.62538.933625
34.37532.832625
30.37528.769125
28.12525.911625
28.87523.68875
27.857142857127.235125
27.666666666733.903375
36.539.8725
45.666666666747.6155
54.333333333352.911
61.166666666756.891875
65.666666666760.65625
67.564.402125
67.142857142967.07925
66.2568.336625
62.2569.063875
60.569.420375
59.2568.688375
5866.18225
56.12565.341375
55.87564.251
54.37562.897625
52.12561.1955
53.2559.264
50.62556.868875
46.37554.38525
43.7552.249625
4349.57175
43.37549.584625
45.7552.303625
49.557.030875
54.12563.377875
61.7571.286625
7380.434875
84.589.085875
94.62595.789375
101100.023125
103.625102.068
104.5103.022875
103.25102.757875
Monitor Measurements
Model Estimates
Local Time
8-hr avg O3 [ppb]
Millington, Maryland
72.62535.079875
6830.6825
63.2526.503375
58.2523.353125
53.2521.419375
49.37521.20125
48.2523.40625
48.7528.18475
51.2535.287625
5543.134125
62.551.090875
72.12559.50575
83.12568.257125
92.62576.307875
99.582.05325
104.37584.821
106.87584.53325
107.583.051125
103.7580.404625
97.2575.63175
8968.715875
80.87560.343375
72.7552.406375
65.546.084625
5940.83875
5336.00075
48.37531.502625
45.37528.0835
43.526.277125
43.2527.427875
4330.865375
43.2535.185625
47.540.840625
55.7547.988875
6656.6305
77.87566.661625
9177.19975
102.586.481125
113.2594.365875
121101.014875
123.375105.496
121.25107.793125
116.125108.10625
107.625107.56725
96106.83875
84.25104.932625
70.5100.063625
57.87590.884375
47.2580.803
37.12571.759625
28.37563.262625
21.37553.19775
17.37542.578875
16.62535.599375
20.87531.880625
27.533.425
35.539.297625
45.87547.699375
5857.421125
7268.448
85.579.092625
96.12588.286
103.87598.299125
108.25108.35925
109115.8485
107.875117.47425
Monitor Measurements
Model Estimates
Local Time
8-hr avg O3 [ppb]
Davidsonville, Maryland
-
8-hr Average O3 (ppb)Local TimeLocation: Millington, MarylandComparison of Model Estimates and Measurements(8-hour average)
Chart10
49.2551.373125
45.7548.765125
43.12547.273
40.12545.888375
37.2543.607125
34.87541.40275
34.7540.006125
37.2539.754625
40.87540.899875
46.87544.04125
54.12548.976
63.12555.0705
72.37561.98975
81.2569.4435
87.7576.422625
91.12582.09825
91.7586.290875
90.12588.33775
87.12587.6685
82.585.831625
77.37583.28
71.579.87575
64.7575.932
58.2567.18275
52.556.85375
45.87548.106375
39.62538.933625
34.37532.832625
30.37528.769125
28.12525.911625
28.87523.68875
27.857142857127.235125
27.666666666733.903375
36.539.8725
45.666666666747.6155
54.333333333352.911
61.166666666756.891875
65.666666666760.65625
67.564.402125
67.142857142967.07925
66.2568.336625
62.2569.063875
60.569.420375
59.2568.688375
5866.18225
56.12565.341375
55.87564.251
54.37562.897625
52.12561.1955
53.2559.264
50.62556.868875
46.37554.38525
43.7552.249625
4349.57175
43.37549.584625
45.7552.303625
49.557.030875
54.12563.377875
61.7571.286625
7380.434875
84.589.085875
94.62595.789375
101100.023125
103.625102.068
104.5103.022875
103.25102.757875
Monitor Measurements
Model Estimates
Fig4a-e
MonModMonModMonMonModModMonModMillington, Maryland - 1990 episode
90909090959595959595Fort Holabird, Maryland - 1990 episode
M11M11M18M18GMTLocalMbM10MbM10D8D8Seaford, Delaware - 1995 episode
timestepGMT TimeLocal TimeLocal TimeMillingtonMillingtonFt. HolabirdFt. HolabirdtimestepLake CliftonAldinoLake CliftonAldinoSeafordSeafordLake Clifton, Maryland - 1995 episode
16/27/90 0:006/26/90 19:006/26/90:1933050.7926064.1415315.2637/13/95 0:007/12/95 19:00809211.3257.5347148.246Aldino, Maryland - 1995 episode
26/27/90 1:006/26/90 20:006/26/90:2033050.8335252.889410.6777/13/95 1:007/12/95 20:0071810.21246.1636239.2
36/27/90 2:006/26/90 21:006/26/90:2133050.8755149.654500.0027/13/95 2:007/12/95 21:006178041.6955338.627Figure 4. Comparison of Model-Estimated Ozone Concentrations and Monitor Measurements
46/27/90 3:006/26/90 22:006/26/90:2233050.9175153.1845307/13/95 3:007/12/95 22:006267035.2024739.092
56/27/90 4:006/26/90 23:006/26/90:2333050.9585149.1574907/13/95 4:007/12/95 23:004852030.2644539.263
66/27/90 5:006/27/90 0:006/27/90:0033051.0004747.1415007/13/95 5:007/13/95 0:004154029.9424038.946
76/27/90 6:006/27/90 1:006/27/90:0133051.0424148.3174907/13/95 6:007/13/95 1:004954033.1633637.952
86/27/90 7:006/27/90 2:006/27/90:0233051.0834146.5024307/13/95 7:007/13/95 2:005052032.4553636.862
96/27/90 8:006/27/90 3:006/27/90:0333051.1253243.2773207/13/95 8:007/13/95 3:003344031.7093435.44
106/27/90 9:006/27/90 4:006/27/90:0433051.1673140.9521807/13/95 9:007/13/95 4:002838030.23534.142
116/27/90 10:006/27/90 5:006/27/90:0533051.2082738.577150.237/13/95 10:007/13/95 5:0020380.19126.1953432.51
126/27/90 11:006/27/90 6:006/27/90:0633051.2502834.934141.0217/13/95 11:007/13/95 6:0020381.57122.343331.602
136/27/90 12:006/27/90 7:006/27/90:0733051.2923231.522208.8357/13/95 12:007/13/95 7:0015398.38719.5613532.337
146/27/90 13:006/27/90 8:006/27/90:0833051.3334635.9682631.6817/13/95 13:007/13/95 8:00214519.9923.06134.535
156/27/90 14:006/27/90 9:006/27/90:0933051.3756146.3055255.6297/13/95 14:007/13/95 9:00555841.62542.6664141.053
166/27/90 15:006/27/90 10:006/27/90:1033051.4177055.6647867.2977/13/95 15:007/13/95 10:00727657.88160.5255847.654
176/27/90 16:006/27/90 11:006/27/90:1133051.4588068.40810275.1617/13/95 16:007/13/95 11:00939569.17372.3447453.192
186/27/90 17:006/27/90 12:006/27/90:1233051.5008980.4310877.5367/13/95 17:007/13/95 12:0012011077.43585.237957.344
196/27/90 18:006/27/90 13:006/27/90:1333051.5429987.33310977.4287/13/95 18:007/13/95 13:0013710976.21695.0557959.648
206/27/90 19:006/27/90 14:006/27/90:1433051.58310290.2889777.8677/13/95 19:007/13/95 14:0012910872.91698.8018461.229
216/27/90 20:006/27/90 15:006/27/90:1533051.62510391.1529876.6797/13/95 20:007/13/95 15:0011910779.04395.7698462.24
226/27/90 21:006/27/90 16:006/27/90:1633051.6679891.80110271.4367/13/95 21:007/13/95 16:0011610076.91689.538362.562
236/27/90 22:006/27/90 17:006/27/90:1733051.7088891.719240.6297/13/95 22:007/13/95 17:001059767.07382.5867661.401
246/27/90 23:006/27/90 18:006/27/90:1833051.7507589.2057814.4177/13/95 23:007/13/95 18:00938949.12272.1887657.723
256/28/90 0:006/27/90 19:006/27/90:1933051.7926784.783591.6237/14/95 0:007/13/95 19:00808126.2162.86546.659
266/28/90 1:006/27/90 20:006/27/90:2033051.8336575.076460.0247/14/95 1:007/13/95 20:0059756.19653.786336.889
276/28/90 2:006/27/90 21:006/27/90:2133051.8756272.638270.0057/14/95 2:007/13/95 21:0055700.5246.0785034.021
286/28/90 3:006/27/90 22:006/27/90:2233051.9176169.875240.0147/14/95 3:007/13/95 22:0041540.10841.9613932.843
296/28/90 4:006/27/90 23:006/27/90:2333051.9585663.9182307/14/95 4:007/13/95 23:0026470.02341.1133330.696
306/28/90 5:006/28/90 0:006/28/90:0033052.0004460.2511007/14/95 5:007/14/95 0:001641040.2543329.756
316/28/90 6:006/28/90 1:006/28/90:0133052.0423621.71690.9767/14/95 6:007/14/95 1:00935036.0312830.074
326/28/90 7:006/28/90 2:006/28/90:0233052.083296.573321.627/14/95 7:007/14/95 2:00925024.4971630.626
336/28/90 8:006/28/90 3:006/28/90:0333052.1251414.80476.217/14/95 8:007/14/95 3:00172804.7072130.723
346/28/90 9:006/28/90 4:006/28/90:0433052.167151.6941411.6797/14/95 9:007/14/95 4:00102500.0142130.443
356/28/90 10:006/28/90 5:006/28/90:0533052.2082023.83830.8597/14/95 10:007/14/95 5:0012240.4511.0572429.146
366/28/90 11:006/28/90 6:006/28/90:0633052.2502937.3671337.0827/14/95 11:007/14/95 6:0015223.744.9912027.075
376/28/90 12:006/28/90 7:006/28/90:0733052.2923841.0583240.1747/14/95 12:007/14/95 7:00313118.11217.2512828.83
386/28/90 13:006/28/90 8:006/28/90:0833052.3335042.4684244.6297/14/95 13:007/14/95 8:00493836.20739.02735.464
396/28/90 14:006/28/90 9:006/28/90:0933052.37550.0873052.8757/14/95 14:007/14/95 9:00766850.64259.7736444.181
406/28/90 15:006/28/90 10:006/28/90:1033052.41759.9194659.0917/14/95 15:007/14/95 10:00918366.04479.1688052.02
416/28/90 16:006/28/90 11:006/28/90:1133052.4586762.5574761.9037/14/95 16:007/14/95 11:00959478.28195.3559257.876
426/28/90 17:006/28/90 12:006/28/90:1233052.5007063.6387065.4457/14/95 17:007/14/95 12:001039783.053103.32210064.865
436/28/90 18:006/28/90 13:006/28/90:1333052.5427266.1947865.4617/14/95 18:007/14/95 13:0010010682.427108.93310671.471
446/28/90 19:006/28/90 14:006/28/90:1433052.5837069.21410462.3417/14/95 19:007/14/95 14:0010510985.274111.77410278.156
456/28/90 20:006/28/90 15:006/28/90:1533052.6256571.17311159.4727/14/95 20:007/14/95 15:0010810690.823116.069282.02
466/28/90 21:006/28/90 16:006/28/90:1633052.6676172.43511061.2427/14/95 21:007/14/95 16:0011113288.624122.84110785.377
476/28/90 22:006/28/90 17:006/28/90:1733052.7086571.5047060.6557/14/95 22:007/14/95 17:0011514390.619124.73510487.331
486/28/90 23:006/28/90 18:006/28/90:1833052.7506069.9788559.457/14/95 23:007/14/95 18:0010112796.177116.7779986.43
496/29/90 0:006/28/90 19:006/28/90:1933052.7923568.3758120.0747/15/95 0:007/14/95 19:008811781.63108.0219883.875
506/29/90 1:006/28/90 20:006/28/90:2033052.8335666.49650.177/15/95 1:007/14/95 20:00689052.76999.5069983.986
516/29/90 2:006/28/90 21:006/28/90:2133052.8756260.3385907/15/95 2:007/14/95 21:00527827.4373.0158983.793
526/29/90 3:006/28/90 22:006/28/90:2233052.9176049.1655007/15/95 3:007/14/95 22:00456913.69338.7628780.554
536/29/90 4:006/28/90 23:006/28/90:2333052.9585064.4464007/15/95 4:007/14/95 23:00436314.08726.7018472.281
546/29/90 5:006/29/90 0:006/29/90:0033053.0005963.7124607/15/95 5:007/15/95 0:00355617.29847.8427559.273
556/29/90 6:006/29/90 1:006/29/90:0133053.0425360.6774307/15/95 6:007/15/95 1:0027550.85657.1546749.256
566/29/90 7:006/29/90 2:006/29/90:0233053.0834256.3614807/15/95 7:007/15/95 2:0040552.86657.1825947.224
576/29/90 8:006/29/90 3:006/29/90:0333053.1254452.9233607/15/95 8:007/15/95 3:0037613.05348.7376053.35
586/29/90 9:006/29/90 4:006/29/90:0433053.1673547.3292607/15/95 9:007/15/95 4:0033600.93741.3426056.603
596/29/90 10:006/29/90 5:006/29/90:0533053.2082840.469170.1717/15/95 10:007/15/95 5:0041611.98234.8355750.859
606/29/90 11:006/29/90 6:006/29/90:0633053.2503932.08200.7527/15/95 11:007/15/95 6:0051649.4831.465240.331
616/29/90 12:006/29/90 7:006/29/90:0733053.2924443.023265.7267/15/95 12:007/15/95 7:00627226.35340.4244433.925
626/29/90 13:006/29/90 8:006/29/90:0833053.3336263.8154526.957/15/95 13:007/15/95 8:00819043.01255.235133.384
636/29/90 14:006/29/90 9:006/29/90:0933053.3757282.4295351.0277/15/95 14:007/15/95 9:0010210258.87371.3755844.624
646/29/90 15:006/29/90 10:006/29/90:1033053.4177294.1798067.2257/15/95 15:007/15/95 10:0011711477.25284.4718051.578
656/29/90 16:006/29/90 11:006/29/90:1133053.45881103.6999494.8597/15/95 16:007/15/95 11:0012211480.98283.2729662.796
666/29/90 17:006/29/90 12:006/29/90:1233053.50096110.5999790.1167/15/95 17:007/15/95 12:0012710982.11180.510485.897
676/29/90 18:006/29/90 13:006/29/90:1333053.542118113.6558883.537/15/95 18:007/15/95 13:0011510781.32580.649108101.911
686/29/90 19:006/29/90 14:006/29/90:1433053.583131101.2889382.6327/15/95 19:007/15/95 14:0011812378.13484.633108110.161
696/29/90 20:006/29/90 15:006/29/90:1533053.62512596.6519183.0467/15/95 20:007/15/95 15:0012217968.70787.377102113.481
706/29/90 21:006/29/90 16:006/29/90:1633053.66711397.6859083.5067/15/95 21:007/15/95 16:0012012772.7390.737110113.058
716/29/90 22:006/29/90 17:006/29/90:1733053.7089398.7888963.7887/15/95 22:007/15/95 17:0011910979.54694.107107114.128
726/29/90 23:006/29/90 18:006/29/90:1833053.75079101.818786.3037/15/95 23:007/15/95 18:0010911279.956112.693103105.569
736/30/90 0:006/29/90 19:006/29/90:1933053.79271101.5796578.1857/16/95 0:007/15/95 19:001028177.214123.2879594.14
6/27/00 0:00
max179.000
Fig4a-e
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Model Estimates
Local Time
O3 [ppb]
Millington, MD
fig5a-b
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Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
Fort Holabird, MD
Fig6a-b
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Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
Lake Clifton, MD
Fig7a-b
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Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
Aldino, MD
Fig8a-b
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Monitor Measurements
Model Estimates
Local Time
O3 [ppb]
Seaford Water Tower, DE
Fig9a-b
Figure 5a. Maximum Absolute Error for Comparison of Model-Estimated OzoneFigure 5c. Average Absolute Error for Comparison of Model-Estimated OzoneFigure 5b. Minimum Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor MeasurementsConcentrations and Monitor MeasurementsConcentrations and Monitor Measurements
max erroravg errormin error
199019951990199519901995
M4Garrison52.02115.57871232880.183
M18Ft. Holabird71.69727.19857534250.79
MbLake Clifton70.78831.54961643841.01
M14Suitland63.49157.3716.235569444420.25905555560.5260.809
M8S. Maryland62.72460.54116.789808219216.77527397260.020.036
M7S. Carroll39.98964.21613.895589041115.0710.1420.137
M12Rockville40.62572.53815.650071428626.27870.291.133
M5Padonia40.76964.67616.013178082219.6123698631.0451.302
M11Millington33.37554.23510.233605633816.61812328770.1410.308
M13Greenbelt62.7861.47619.047136986318.44952054790.0450.684
M3Ft. Meade56.34562.65713.769847222219.0620.0110.981
M6Essex50.90360.1816.827902777818.3223698630.2890.003
M9Edgewood52.99264.42218.212666666721.07553424660.0570.331
M2Davidsonville48.95954.18216.699333333321.00517808220.870.76
M10Aldino54.84291.62319.173042857118.55971232880.4420.503
V5Cub Run Treatment Plant84.94324.19998571430.303
V15James S. Long Park97.37123.9861095890.509
V17Widewater Elementary School80.57625.67484722220.08
V9Phelps Wildlife Management Area67.45618.06993055560.282
V1S. 18th & Hayes St.64.40561.98620.739676056324.67004166671.5531.514
V6Mt. Vernon56.08260.35717.839986111117.76504166670.0510.445
V7Arlington Blvd.5963.92718.501126760618.88371830990.2140.577
V8Lewinsville60.83571.05719.595971428620.4461095890.4680.432
V19Alexandria Health65.82148.89417.287859154920.02140277780.5890.034
D2State Road 38452.06936.67813.705382352913.22683561640.1890.286
D5Lums Pond State Park59.20273.26617.625382352915.95155555561.7520.519
D8Seaford Water Tower79.97435.13520.333512.56946478870.3640.053
Fig9a-b
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Maryland
Virginia
Delaware
1990
1995
Max |Monitor Measurement - Model Estimate|[O3 ppb]
Figure 6a. Comparison of Model-Estimated Ozone Concentrations From95H95H95H95H90H90H90H90H
12-km and 4-km Resolution Domains for Greenbelt, Maryland Monitor Location12km est4km estMon12km est4km estMon
LocalSuitlandSuitlandSuitlandLocalGreenbeltGreenbeltGreenbelt
7/12/95 19:0062.9739.612656/26/90 19:0049.73143.92951
7/12/95 20:0045.73330.866676/26/90 20:0045.74338.45752
7/12/95 21:0032.60719.746656/26/90 21:0044.33525.39754
7/12/95 22:0025.3826.786626/26/90 22:0042.15633.05351
7/12/95 23:0022.46836.395636/26/90 23:0038.31436.82243
7/13/95 0:0022.85233.931616/27/90 0:0034.335.61536
7/13/95 1:0020.9227.935586/27/90 1:0028.62529.42933
7/13/95 2:0018.17319.503516/27/90 2:0022.07819.44832
7/13/95 3:0014.22112.019456/27/90 3:0016.3280.86432
7/13/95 4:007.6449.739376/27/90 4:0011.046025
7/13/95 5:002.2329.376256/27/90 5:006.8450.97418
7/13/95 6:004.93416.82256/27/90 6:009.2372.44119
7/13/95 7:0016.67531.72386/27/90 7:0019.9579.12525
7/13/95 8:0034.01145.411536/27/90 8:0026.16533.21437
7/13/95 9:0053.6956.982676/27/90 9:0044.4659.13162
7/13/95 10:0068.01970.622796/27/90 10:0068.42274.37584
7/13/95 11:0080.95181.214806/27/90 11:0081.30976.729103
7/13/95 12:0089.90285.046776/27/90 12:0081.26176.49107
7/13/95 13:0096.43387.575836/27/90 13:0081.10777.791103
7/13/95 14:0099.60791.055906/27/90 14:0083.63380.18594
7/13/95 15:00100.16696.419956/27/90 15:0086.39781.70496
7/13/95 16:0099.55497.065936/27/90 16:0086.83383.04583
7/13/95 17:0096.0489.588866/27/90 17:0077.4972.12261
7/13/95 18:0088.08975.386726/27/90 18:0058.17358.7237
Figure 6b. Comparison of Model-Estimated Ozone Concentrations From7/13/95 19:0072.90971.944636/27/90 19:0040.22959.75623
12-km and 4-km Resolution Domains for Suitland, Maryland Monitor Location7/13/95 20:0067.53975.181526/27/90 20:0024.14160.69619
7/13/95 21:0066.09569.775456/27/90 21:0018.49845.2069
7/13/95 22:0056.91553.316446/27/90 22:0010.50417.5544
7/13/95 23:0040.36535.089476/27/90 23:000.50407
7/14/95 0:0030.69322.528496/28/90 0:000.0021.5836
7/14/95 1:0026.37121.174436/28/90 1:000.00237.98311
7/14/95 2:0023.18628.032406/28/90 2:000.02644.1365
7/14/95 3:0021.13932.556426/28/90 3:000.14541.9694
7/14/95 4:0015.12932.053386/28/90 4:000.02322.8774
7/14/95 5:006.97227.418346/28/90 5:001.3255.0915
7/14/95 6:0013.6225.907366/28/90 6:004.69813.31613
7/14/95 7:0027.04932.91376/28/90 7:0017.81926.23827
7/14/95 8:0034.61240.296286/28/90 8:0032.70936.90941
7/14/95 9:0046.38352.314586/28/90 9:0044.73551.58757
7/14/95 10:0063.14568.811826/28/90 10:0058.06462.96878
7/14/95 11:0077.92184.2141056/28/90 11:0067.87871.75287
7/14/95 12:0092.91895.0411206/28/90 12:0075.19373.139107
7/14/95 13:00104.381102.5341246/28/90 13:0078.4273.428120
7/14/95 14:00109.844105.7091196/28/90 14:0078.7574.131129
7/14/95 15:00113.003109.1841086/28/90 15:0078.89177.214120
7/14/95 16:00113.676112.31056/28/90 16:0081.0182.22145
7/14/95 17:00113.09113.494986/28/90 17:0083.03482.368139
7/14/95 18:00111.656109.541856/28/90 18:0081.42280.897111
7/14/95 19:0099.824100.32666/28/90 19:0058.30866.76391
7/14/95 20:0080.26397.704506/28/90 20:0043.96463.09969
7/14/95 21:0063.01897.37406/28/90 21:0031.70166.12148
7/14/95 22:0059.04988.894386/28/90 22:0022.10156.75935
7/14/95 23:0054.363.1356/28/90 23:009.44653.08227
7/15/95 0:0046.06729.312356/29/90 0:000.2352.04519
7/15/95 1:0038.36910.266326/29/90 1:000.01840.54922
7/15/95 2:0032.9160.483296/29/90 2:000.00828.03915
7/15/95 3:0035.1750.01316/29/90 3:000.0021.02634
7/15/95 4:0032.5970256/29/90 4:000027
7/15/95 5:0015.9050.391246/29/90 5:001.2030.63819
7/15/95 6:0016.0873.091246/29/90 6:003.5811.67318
7/15/95 7:0033.01533.965446/29/90 7:0031.2644.61928
7/15/95 8:0050.04448.613616/29/90 8:0051.78218.80440
7/15/95 9:0065.87143.084766/29/90 9:0072.54464.0860
7/15/95 10:0080.95259.5781016/29/90 10:0097.7794.07896
7/15/95 11:0094.96390.3461236/29/90 11:00101.20899.77198
7/15/95 12:00105.83106.5371346/29/90 12:0098.55293.066102
7/15/95 13:00111.433113.0971176/29/90 13:0094.25292.44695
7/15/95 14:00111.862111.1911126/29/90 14:0095.35996.79190
7/15/95 15:00108.599116.0266/29/90 15:0098.22100.89789
7/15/95 16:00104.698127.729736/29/90 16:00100.575100.67391
7/15/95 17:0099.85125.087756/29/90 17:00101.65895.0885
7/15/95 18:0095.46396.652536/29/90 18:0097.67599.3280
7/15/95 19:0081.24694.134566/29/90 19:0083.85393.58266
6/27/00 0:00
max
Monitor Location
Maryland
Virginia
Delaware
1990
1995
Avg |Monitor Measurement - Model Estimate|[O3 ppb]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Monitor Location
Maryland
Virginia
Delaware
1990
1995
Min |Monitor Measurement - Model Estimate|[O3 ppb]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Monitor Location
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Model Estimates - 12 km grid cells
Model Estimates - 4 km grid cells
Monitor Measurements
Local Time
O3 [ppb]
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Model Estimates - 12 km grid cells
Model Estimates - 4 km grid cells
Monitor Measurements
Local Time
O3 [ppb]
Figure 7a. Difference in Model-Estimated Ozone Concentrations Using Adjusted Emissions Scenario 1 and Unadjusted ScenarioDIFF IN MODEL ESTIMATE (adj1 - unadj)DIFF IN MODEL ESTIMATE (adj2 - unadj)
Adjusted scenario: biogenic VOC emissions increased by 100% for isoprene, terpene, and other VOCsLocal TimeDavidsonvilleFt. MeadeGarrisonPadoniaEssexS. CarrollS. MDEdgewoodAldinoMillingtonRockvilleGreenbeltSuitlandFt. HolabirdDavidsonvilleFt. MeadeGarrisonPadoniaEssexS. CarrollS. MDEdgewoodAldinoMillingtonRockvilleGreenbeltSuitlandFt. Holabird
6/26/90 19:006.1116.5636.5218.6613.4230.8560.6642.99210.3427.9417.6316.2929.6193.548.3913.8129.65912.4057.0965.1413.9676.82713.2210.888-6.0261.6456.3196.44
6/26/90 20:002.0315.9942.3424.8432.2572.1331.4071.2543.1964.2255.9058.1732.7930.2564.2533.1343.1368.1485.3464.5384.1654.86.8166.506-4.3823.1971.1760.568
6/26/90 21:001.5483.171.4650.0022.3476.8841.3881.1830.8560.1433.2912.6252.020.0013.2472.2530.7870.0044.863-3.4124.1784.0854.1732.919-5.2911.5721.0670.002
6/26/90 22:001.5631.8864.49901.9724.0821.111.3480.9050.0912.422.0672.19203.4991.1952.20803.783-0.3843.0343.5993.5832.477-7.3321.6822.3190
6/26/90 23:001.4322.0042.27401.9041.750.3411.6521.1620.0822.8211.9632.18902.9771.7521.56703.732-1.2461.3943.9063.3442.172-5.3231.7072.2330
6/27/90 0:001.0341.7451.79100.9282.451-0.6911.2281.3550.1651.871.8462.0801.9451.6881.25101.858-0.8930.0093.1123.4261.835-1.8010.6421.170
6/27/90 1:000.491.412.03200.0012.429-1.8610.5351.1050.2850.2461.6110.96400.981.2210.74700.002-1.695-1.0971.9292.9231.998-0.079-0.424-0.150
6/27/90 2:00-0.290.9722.247002.266-2.445-0.0360.3520.210.030.7150.200.3410.085-0.48500-1.154-1.8831.0891.7582.021-0.005-1.055-0.2320
6/27/90 3:00-1.4520.450.198001.737-2.588-0.047-0.018-0.4140.0030.055-0.0040-0.829-1.011-0.04100-0.723-2.2870.4171.1391.917-0.001-0.359-0.0030
6/27/90 4:00-1.9010.0020.009000.779-2.71300.012-1.22300-0.0310-1.604-0.02-0.01500-1.123-2.31800.1071.57200-0.040
6/27/90 5:00-1.3180.0460.4750.0670.0060.599-2.4750.0080.017-1.8530.2040-0.2070.007-1.489-0.1440.0810.0570.013-0.448-1.9130.0180.0350.866-0.092-0.227-0.5350.012
6/27/90 6:00-0.3960.2841.7840.820.0362.167-1.4470.0310.059-1.8650.580.104-0.2030.05-0.394-0.4380.8590.6310.0532.191-0.5070.0630.0990.381-0.765-0.471-1.3070.038
6/27/90 7:000.9793.2915.7885.5521.8573.7390.1470.4010.628-0.5365.7271.8651.8181.9151.7330.3566.25.3051.7834.9243.080.5410.8131.3631.77-0.3780.2791.392
6/27/90 8:006.44711.2179.2579.42210.5586.1832.9716.7386.7563.55510.1949.427.6210.3239.43810.31411.80811.51913.5677.7189.4478.3197.8958.08112.3199.0749.47112.462
6/27/90 9:0014.416.9298.3018.89215.995.0768.90715.41114.3629.5019.91715.95713.10316.00721.88221.8312.72213.11621.1868.55420.30719.54817.28618.33916.02121.4120.15320.848
6/27/90 10:0017.7889.9240.671.30916.8211.39712.16620.8586.61914.5134.51510.53112.614.70329.1320.7076.1866.59523.6596.68322.82126.4412.49324.72111.66921.55120.52322.005
6/27/90 11:0011.7833.198-0.863-1.11912.5430.7188.69423.4571.46315.8991.0633.17410.2819.82524.05413.1415.1864.72719.9346.86316.6930.8557.23525.88.23115.59117.98117.895
6/27/90 12:007.6710.477-0.748-1.2079.877-0.0327.5523.7321.0559.2820.6310.9478.4677.03220.3769.535.1274.82917.2575.60914.34233.567.22520.1227.6413.08416.40114.606
6/27/90 13:005.515-0.208-0.703-0.83210.279-0.3336.83718.2531.144.9640.780.4817.8585.88318.5358.4524.9455.03617.4454.77513.48530.5417.79316.1537.59712.6416.04713.008
6/27/90 14:004.7450.082-0.873-0.88310.508-0.1437.55612.082.0143.2740.9880.6847.615.42118.4428.424.5034.61117.8054.65714.47824.6129.14214.3597.45512.33815.46612.34
6/27/90 15:002.3350.475-0.911-0.95510.7781.088.2449.7142.4152.281.3921.1846.5185.65713.4568.2724.24.18718.6535.66615.26122.4079.56812.9527.40212.30813.28612.496
6/27/90 16:002.6310.902-0.231-0.51511.173.8598.4867.33.3862.5912.0773.7785.1066.31811.0258.1624.6714.33119.8348.19115.59720.48110.79812.887.55715.0034.96913.177
Figure 7b. Difference in Model-Estimated Ozone Concentrations Using Adjusted Emissions Scenario 2 and Unadjusted Scenario6/27/90 17:004.3244.8361.4620.6568.9958.1875.315.1685.5353.323.6914.0367.4898.00511.10712.2546.2285.33918.86312.26111.69315.79914.97213.4418.2618.999-1.34516.237
Adjusted scenario: biogenic VOC emissions increased by 100% for isoprene, terpene, and other VOCs; motor vehicle emissions6/27/90 18:002.4196.1064.3542.7936.8814.541.855.2875.2462.8033.2076.2526.2626.5289.6018.7268.7957.11516.27118.6747.61413.86716.55513.1766.5733.4473.36914.45
increased by 100% for VOCs and NOx6/27/90 19:001.7545.7677.2985.8496.85421.4530.4774.1294.2534.4111.6833.6845.4061.1858.794.94110.89511.08612.65425.2056.15411.80212.92613.242-2.8022.362-3.6222.47
6/27/90 20:002.1672.27514.9548.8690.26212.41-0.5672.1523.4682.2282.7032.6484.6730.0047.7034.29718.3213.1490.68615.615.7048.68610.8588.447-14.1043.513-9.5470.009
6/27/90 21:001.9962.27412.68311.6670.00415.328-0.4873.132.2330.662.1982.0854.1920.0087.23.29414.98514.5080.01217.5756.3178.1387.9027.001-2.96-0.667-9.1760.018
6/27/90 22:002.9282.43713.38712.6160.00212.85-1.2880.0353.8721.6372.4073.5453.0430.027.177-0.76715.43613.840.00315.2375.0620.0987.1857.949-3.118-4.872-3.8880.018
6/27/90 23:000.814.345.0744.76606.657-2.1927.910.2581.51612.9360.0010.0010.0021.791-4.4718.7877.64909.4323.2617.7588.2987.60910.294000.001
6/28/90 0:000.5879.8152.1412.29202.4111.0494.8174.4181.1458.125.34400-0.0346.4286.0245.45305.2744.0556.7563.5267.0899.448-0.66500
6/28/90 1:009.0245.1661.521.5984.4740.6520.2242.1581.6594.3454.6266.29810.2030.540.6126.2184.4333.4747.3323.9390.6985.1232.1146.2727.0257.7392.9751.063
6/28/90 2:004.8621.8931.5451.5832.9260.4921.0522.0741.0376.0212.5982.1915.323.5016.5484.7873.8871.5935.1414.119-0.1773.876-0.3385.3135.2165.2085.4186.528
6/28/90 3:002.9042.2771.7861.0812.1720.7160.0731.8110.964.8561.7011.6542.7432.0194.5693.6171.8090.6431.5512.876-0.0011.0320.5061.2673.8674.2992.3861.66
6/28/90 4:000.0180.3131.2080.8251.3861.2221.0691.2120.8012.5841.0331.9241.7721.3940.0210.0611.5972.0871.6472.3260.0491.9132.206-0.0682.5412.537-1.2891.519
6/28/90 5:000.0570.3630.9350.8060.9141.0274.7660.8550.7541.4541.4511.2580.9920.9660.074-0.3112.6962.7372.6942.9351.7942.6092.0220.9010.533-0.01-1.7782.704
6/28/90 6:000.5550.6331.161.0791.0770.8671.6561.0410.9930.921.3841.310.9451.050.545-2.0333.0563.0443.0852.9871.2862.7712.1090.5510.78-0.448-0.6433.126
6/28/90 7:001.4121.241.4951.3921.5451.1041.6531.4441.161.3041.7011.4151.7271.5522.061-0.0873.4863.5283.8133.3451.953.3542.6541.3392.5250.814-0.163.965
6/28/90 8:002.3642.7012.2962.2552.4681.8563.7822.0981.7442.2013.1542.772.8632.6344.3693.0054.6274.755.184.6635.654.3513.6062.3695.3274.0012.5565.63
6/28/90 9:004.7875.7634.0063.6483.7173.3866.0653.3182.5093.6515.9286.5975.9154.2817.9177.5457.276.9347.2967.4069.5556.385.174.7869.159.4766.3688.05
6/28/90 10:008.7857.7045.6985.1644.2263.4539.8223.4792.5443.4875.4068.8259.3795.5212.28810.96310.2299.31498.54614.1428.0416.5967.7899.64512.76110.42710.354
6/28/90 11:0010.2976.5145.0485.8825.3542.48113.0883.3292.5362.2763.9786.4910.0417.42815.07711.44710.39710.8210.8048.16717.1628.8357.6258.2799.52711.79513.02812.736
6/28/90 12:007.7513.442.4424.1455.3761.66414.9843.983.2651.6473.23.947.2297.66914.1169.2287.9619.24110.827.14819.2799.1128.4488.0929.3610.15912.81413.313
6/28/90 13:005.7692.6171.3172.2473.9111.48712.6014.1063.9071.9233.0883.2196.6026.24813.0738.3286.8387.5699.3086.65318.5719.1448.9168.1739.47210.17713.40312.039
6/28/90 14:004.8412.3541.0081.2342.8571.98811.4943.5433.9032.5824.4122.9826.8595.40812.7477.866.6016.7138.477.14618.8628.8889.3368.5610.94210.30513.92911.364
6/28/90 15:005.072.7371.2351.0092.1334.44412.1722.0443.5273.128.653.5797.9753.94213.3817.7496.9856.8497.8329.57320.1087.6099.3428.94314.57810.61914.0499.763
6/28/90 16:006.195.3451.3471.123.5268.19313.8791.2222.9623.27315.2076.6410.4264.21214.4579.7136.5916.9549.2113.3821.5426.9749.0279.27519.18912.81914.6459.79
6/28/90 17:007.9179.3392.8141.3285.63715.2814.791.3722.7323.09322.53711.31714.9516.515.37112.9878.5277.01611.05319.92722.0387.1158.9489.14223.73416.07816.95411.818
6/28/90 18:006.76213.86110.0514.1566.19918.96812.9281.8692.012.37629.05616.28218.0518.20513.44715.96115.0919.52111.77623.13619.8547.5448.1098.27428.8920.06818.0413.605
6/28/90 19:005.54521.80613.4458.718.59217.1038.9064.1911.6542.28333.0116.44211.3959.72711.6551.4618.09313.74813.75821.28815.5859.4837.0197.77627.03316.55712.52914.455
6/28/90 20:005.0261.6516.28711.99310.17817.1457.274.5341.252.25431.1627.2526.9720.0639.9760.1320.36916.59914.80221.1913.2579.3886.1616.94719.1145.6796.7870.096
6/28/90 21:004.6489.20718.90915.1340.69120.1317.627.4810.8031.60526.6535.0737.59708.376-3.17722.12418.9491.43323.28211.95612.1085.2015.14911.333.8881.7620
6/28/90 22:004.977.3619.8816.875024.5717.449.1895.3831.30219.4814.9167.82108.734-3.02922.42719.991026.22612.29213.22710.0184.3772.102-0.0292.7190
6/28/90 23:005.1555.48617.35813.884025.8166.9070.4316.755.7440.1315.3127.20508.6720.20519.54116.076026.73912.260.7611.41910.282-0.004-1.0792.3060
6/29/90 0:005.1175.4944.8390018.76.11808.7225.0530.0085.7026.90408.2241.4373.5710019.94111.85012.6269.951-0.001-0.1423.2650
6/29/90 1:004.9435.5774.9360011.6055.81109.2874.0204.7233.34108.1451.7972.796007.62211.815011.8618.8320-3.0393.8450
6/29/90 2:005.8214.8562.139009.4365.30201.5033.6304.8830.313010.4020.3040.657000.53711.49302.428.2170-0.1330.7430
6/29/90 3:006.3024.6320.0490.00308.0025.66100.2544.16402.8336.174011.169-1.940.0060.0010-0.11911.54300.3718.41901.1558.6870
6/29/90 4:005.9220.3320.0010.00300.0224.37400.0284.81004.904010.104-0.03100.001009.68900.0378.22004.3090
6/29/90 5:004.8920.2090.5750.9840.0221.09-4.3570.0280.8415.430.1770.1654.6750.0286.9810.0780.1070.6910.0330.3750.6790.0390.9667.5630.0460.027-3.7630.037
6/29/90 6:005.4910.3061.4633.1320.1191.989-0.0370.111.7816.3510.6710.361.610.1396.010.0750.4061.6190.1451.0662.180.1511.9926.5980.004-0.091-2.9160.144
6/29/90 7:005.6711.744.4344.0141.4496.8092.1570.432.0277.4751.9331.1224.5721.5795.0410.1872.3231.7561.035.5415.530.4982.1669.625-0.03-0.4640.2770.957
6/29/90 8:0015.197.90112.57811.4439.96919.6426.5532.7296.0748.55417.5788.61912.718.59414.2422.01913.0879.5549.32518.76211.7972.535.72112.65812.0681.92410.2537.271
6/29/90 9:0020.39121.02520.06817.51616.48919.11510.06111.17913.36710.00416.23222.76912.8416.78321.95812.65722.50419.69216.49921.15217.87511.44913.68715.21818.60817.82615.89514.679
6/29/90 10:008.42729.08225.60525.09225.7833.4938.88822.58420.2624.719-0.16222.3513.42725.94319.30628.21429.13428.18623.29712.14717.88222.50821.83411.33810.20726.28213.1722.513
6/29/90 11:00-2.9183.3516.36116.89828.154-1.1517.27437.70829.2143.11-3.0784.7680.80621.34810.40317.00415.19724.75631.6789.03116.61434.86131.19810.9148.05519.55311.67428.22
6/29/90 12:00-4.151-2.85-2.201-0.3825.7-2.6173.88141.9930.993.531-4.253-0.2790.8542.9829.13811.277.9569.53517.3037.64712.71545.49436.11616.3967.02815.44511.69215.19
6/29/90 13:00-4.074-4.096-3.313-2.9041.426-4.0274.57115.65910.6083.751-4.983-1.5860.1420.2699.3489.7956.6617.41513.0364.85413.06329.65420.31318.2265.35714.00511.07912.265
6/29/90 14:00-4.23-4.317-4.484-3.9540.407-4.9996.7943.2352.732-2.365-5.0630.354-0.443-0.4238.4649.4984.3225.62811.8882.08815.28517.67713.82511.7244.2814.6338.89511.461
6/29/90 15:00-3.857-3.817-5.064-5.051-0.36-4.0019.964.362-1.016-4.159-4.5435.1250.131-1.1976.7159.8262.3272.95810.6132.13219.05317.2710.05910.0744.14717.3727.92210.051
6/29/90 16:00-3.708-2.663-4.149-4.752-1.8120.00310.754.151-1.936-4.518-2.8099.1911.431-2.4315.21910.7272.5382.3818.1216.45219.62517.5467.2949.8474.06419.1748.257.978
6/29/90 17:00-3.643-2.1280.541-2.3023.0433.3076.131.8122.55-4.0664.7766.8181.7161.6324.8328.5557.3094.34713.9968.12614.26915.8113.8247.9849.12614.7097.78312.799
6/29/90 18:00-1.6641.9434.0053.438.2686.458-1.246-0.406-0.3280.3096.2855.9371.8282.9915.1967.3668.5789.20819.2149.516.08910.52111.7699.6756.4919.3612.6597.664
6/29/90 19:00-3.2262.947.0446.6086.5377.123-1.6134.454-0.7543.8794.2624.8132.3555.387-0.2643.379.628.58510.6118.734.4112.5527.90312.442-2.1681.817-6.7718.703
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Davidsonville
Ft. Meade
Garrison
Padonia
Essex
S. Carroll
S. MD
Edgewood
Aldino
Millington
Rockville
Greenbelt
Suitland
Ft. Holabird
Local Time
Figure 8a. Maximum Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor Measurements, Using Various Emissions Scenarios
max erroravg error
origadj1adj2origadj1adj2
Suitland63.49160.1559.64616.716847222216.481763888916.2355694444
S. Maryland62.72467.09872.41321.254383561617.941931506816.7898082192
S. Carroll39.98943.17546.22715.689219178115.423452054813.8955890411
Rockville40.62548.18848.02219.438028571417.814971428615.6500714286
Padonia40.76952.76257.36816.897383561617.365465753416.0131780822
Millington33.37535.65843.02113.570253521110.818352112710.2336056338
Greenbelt62.7856.1449.96118.933849315119.265479452119.0471369863
Garrison52.02158.31161.52619.660164383618.258410958915.5787123288
Ft. Meade56.34554.69556.21514.10737513.379902777813.7698472222
Ft. Holabird71.69768.70664.73425.635479452126.698068493227.1985753425
Essex50.90350.21249.4719.654152777818.080972222216.8279027778
Edgewood52.99252.95752.89418.227611111117.432055555618.2126666667
Davidsonville48.95946.30346.92417.929698412716.960063492116.6993333333
Aldino54.84252.23845.89417.809418.249142857119.1730428571
Figure 8b. Average Absolute Error for Comparison of Model-Estimated Ozone
Concentrations and Monitor Measurements, Using Various Emissions Scenarios
Model Estimated O3 (w/ adjsuted emissions scenario) - O3 (w/ unadjusted emissions) [ppb]
Davidsonville
Ft. Meade
Garrison
Padonia
Essex
S. Carroll
S. MD
Edgewood
Aldino
Millington
Rockville
Greenbelt
Suitland
Ft. Holabird
Local Time
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