Report on DWD activities and plans - ECMWF...GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)Report on...
Transcript of Report on DWD activities and plans - ECMWF...GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)Report on...
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Report on DWD activities and plans
Harald Berresheim, Harald FlentjeGerman Weather Service, Met. Obs. Hohenpeissenberg
Outline
• Activities in months 1-12 (AER, GRG)
• Evaluation: selection of events
• Plans for months 13-30 (AER, GRG)
• Needs & open questions
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Activities I
• Established/configured access to ECMWF data server MARS
• Introduced GEMS during GMES-, GAW-, NDSC-, and CO-Workshops
• Requested data from networks and stations
• Data survey → compiled tables of coverage of AOD and selected gases in GAW data bases
• Retrieved 2003 data from GAW data bases
• Set up data handling routines
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Activities II (AER 4.2)
• Comparison of aerosol model AOD from sea salt and desert dust with AOD observations at 13 GAW stations:
• filter according to Angstrom parameter (particle size)
• select episodes with Sahara dust observed at GAW stations
• select sea salt episodes/stations
• Select events in 2003 where desert dust, forest fire or sea saltparticles
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Activities III (GRG 4.1)
• Established/configured access to ECMWF data server MARS
• Introduced GEMS during GMES-, GAW-, NDSC-, CO-Workshops
• Requested data from networks and stations
• Data survey → compiled tables of coverage of AOD and selected gases in GAW data bases
• Retrieval of 2003 data from GAW data bases
• Set up data handling routines
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
GAW Data Centreshttp://wdca.jrc.it
http://www.woudc.org
http://gaw.kishou.go.jp/wdcgg.htmlhttp://wrdc.mgo.rssi.ru
http://www.empa.ch/gaw/gawsis
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
WDCA quality assurance for PFR instrumentsPMOD-WORCC (World Optical Depth Radiation Calibration Centre)
Christoph Wehrli
WMO/GAW Report 162 (http://www.wmo.ch/web/arep/gaw/gawreports.html)
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - AOD I
10 global
17 regional
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - AOD II
P e r io d s w ith AO D d a ta in W D C A D B (0 8 /2 0 0 5 )
1985 1990 1995 2000 2005
Ny A les und
Mac e Head
Bratts Lake
Z ings t
L indenberg
Pots dam
Hohenpeis s enberg
Jungf raujoc h
Iz ana
Ry or i
Minamitor is h ima
Y onagunijima
Mauna Loa
A lic e Spr ings
AOD data from reporting GAW stations (WDCA data base)
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - AOD III
AOD data from GAW regional stations (current status)
DeBilt 2 5.18 52.1 [email protected] ContactedFundata 1384 25.3 45.46 [email protected] Address?? --> Hom epage not usefulTamanrasset 1377 5.5 22.78 m_mimouni_dz@yahoo. Delivered 'turbidity (= AOD?)' data for 2003Thule 200 -68.76 76.51 [email protected] ContactedLauder 370 169.68 45.03 p.johnston@niw a.cri.nz ContactedAnmyeon-do (Korea) 45 126.3 36.54 [email protected] Byoung forw arded request to new KGAWO dYuen Ng Fun (China) 86 114.3 22.4 [email protected] Bangkok (Thai) 53 100.6 13.67 [email protected] (Thai) 4 100.6 7.2 [email protected]. ContactedWaliguan 3810 100.9 36.28 [email protected] forw arded m ail to PI for Aerosol (CAWKejimkijik (Can) 127 -65.2 44.4 [email protected]. ContactedEgbert (Can) 253 -79.8 44 [email protected]. "Saturna Island (Can) 178 -123.1 48.7 [email protected]. "La Habana (Cuba) 50 -82.4 23.15 [email protected] .cu ContactedIspra 209 8.6 45.8 julian.groebner@pmodw Contacted (now at PMOD --> CIMEL, in AERON
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - AOD IV
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - GRG I
Number of Stations by Parameter and RegionRegion I Region II Region III Region IV Region
V Region VI Antarctica Mobile Total
Station 12 30 8 62 33 117 21 29 312Country 8 10 5 6 7 31 8 3 66O3 4 6 2 17 5 47 4 85CO 6 9 3 16 14 21 8 3 80NO2 1 2 42 45NO 11 11NOx 6 6NOy 3 3SO2 2 46 48Region I: Africa, II: Asia, III: South America, IV: North/Central America, V: South-West Pacific, VI:Europe
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - GRG II
CO
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - GRG III
O3-surf
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Data Overview - GRG IV
NO
NO2
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Aerosol Model Evaluation Prelim. comparison of aerosol model (Morcrette) and GAW observations
Period: Jan - June 2003
Stations: 13 GAW global stations
Parameter: AOD
Model: Sea salt, desert dust
Observations: Total AOD
Filtering station AOD according
to Angstrom Exponent does not
reduce large differences
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Episodes ISahara dust at Izana GAW station on 13 Feb 2003
Searching for events in
central Europe...
NOAA-HYSPLIT
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Episodes IICO - MOPITTForestfire plume at Ryori GAW station on 23 May 2003
Searching for events with
signatures in AOD, CO, NOx
NOAA-HYSPLIT
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Sahara Dust in central Europe in 2003
Sahara Dust Events at Hohenpeissenberg2003
02468
101214161820
Jan 03
Feb 03Mrz
03Apr 0
3Mai 0
3Ju
n 03Ju
l 03
Aug 03
Sep 03
Okt 03
Nov 03
Dez 03
Saha
ra D
ust I
ndex
23/28 January (14)
24/27 February (12)
10/11 March (12)
20-27 March (16)
8 April (12)
5-7 May (14)
15 July (14)
22 July (14)
6-16 August (20)
3 September (12)
5,8 November (14)
21 November (14)
red: Sahara origin confirmed by b-traj
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
CO Long-range transport episodes
1-12 Jan Pollution over China
15-20 Jan Bushfires in SE-Australia
27 Jan–3 Feb Fires in N-Africa
27 Jan–2 Feb Pollution over China
20–25 Feb Fires in SE-Asia
13 Feb–4 Mar Fires in northern S-America, SE-Asia, W-Africa
18–22 Mar Fires in central America
3–13 Apr Fires in SE-Asia
…
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Plans for Project Months 13 - 30
• continue (spectral) AOD validation based on GAW global and regional database (target year 2003), identify / select specific events suitable for model evaluation
• extend validation of reanalysis runs from year 2003 to longer period (e.g., 1996-2005) incl. validation of modelled aerosol radiative effects on surface irradiance
• continue to complete GAW aerosol optical properties database (station contacts) and begin with transition to real-time data flow (DWD as GAW/GEMS interface)
• establish / improve quality level characterization of station AOD data incl. station characteristics
• collaborate with RMIB on AOD validation
• merge task 4.2 validation results to support overall validation by NUIG
• collaborate with modellers to identify model deficits and improve model(s)
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Plans for Project Months 13 - 30
• Evaluate GRG model runs with GAW global and regional database (target year 2003)
• identify / select specific events suitable for model evaluation
• extend validation of reanalysis runs from year 2003 to longer period (e.g., 1996-2005)
• continue to complete GAW trace gas database (station contacts) and begin with transition to real-time data flow (DWD as GAW/GEMS interface)
• establish / improve quality level characterization of station trace gas data incl. station characteristics
• collaborate with modellers to identify model deficits and improve model(s)
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Open Questions & Needs
• Redundant data in different data bases → co-ordination
• “Real time“ (tbd.) data flow
• Data format and delivery
– reanalysis data
– real time data in operational phase
• Regular meeting/telcons between observers and evaluators• Evaluate on basis of existing measurement data
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Initial Parameters for Validation:
- Reactive Gases: ground-based CO, O3, NOx; O3 profiles
- Aerosol: Optical depth (AOD)
3 STEPS
• EVALUATION OF STATISTICAL DIFFERENCES (model vs. measurements)
• IDENTIFICATION OF MODEL DEFICITS (critical assessment of observational data accuracy - e.g. station environment)
• PROPOSAL FOR MODEL IMPROVEMENT (joint effort with modellers)
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Meteorological Observatory HohenpeissenbergR/R0 = global radiation normalized to Rayleigh atmosphere
AOD = aerosol optical depth (550 nm), scale inverted
0,6
0,7
0,8
0,9
1
1 2 3 4 5 6 7 8 9 10 11 12
Monat
1-AOD 1999-2002G/G0 1999-2002G/G0 1992 PinatuboG/G0 1982-1983 El Chichon
At blue sky conditions in summer the atmospheric aerosol reflects about 10% more of the global radiative input as compared to winter.
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Seven month running average of AOD at 0.55 µm for Lindenberg and Hohenpeissenberg (Germany)
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
AO
D
(Source: M. Weller, DWD Lindenberg)
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1993 1994 1995 1996 1996 1997 1998 1999 2000 2001 2002 2003
Year
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
Mean Annual Frequency of Saharan Dust EventsHohenpeissenberg (1997-2004)
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23)
1.11.1998
[NASA]
0
2
4
6
8
10
12
14
16
1 2 3 4 5 6 7 8 9 10 11 12Monat
Mitt
lere
Anz
ahl T
age
mit
Sah
aras
taub 1996 - 2003
markante Fälle
Global Atmosphere Watch
0
10
20
30
40
50
60
70
80
90
100
Sta
ubm
asse
µg
/ m 3
05.02.04 06.02.04
DWD-MOHp2 02/2004
GEMS Assembly, Reading, 6-10 Feb 06 (06-02-23) DWD-MOHp2 02/2004
01.1
0.01
02.1
0.01
03.1
0.01
04.1
0.01
05.1
0.01
06.1
0.01
07.1
0.01
08.1
0.01
09.1
0.01
10.1
0.01
11.1
0.01
12.1
0.01
13.1
0.01
14.1
0.01
15.1
0.01
16.1
0.01
17.1
0.01
18.1
0.01
19.1
0.01
20.1
0.01
21.1
0.01
22.1
0.01
23.1
0.01
24.1
0.01
25.1
0.01
26.1
0.01
27.1
0.01
28.1
0.01
29.1
0.01
30.1
0.01
31.1
0.01
0.110
0.135
0.175
0.225
0.300
0.400
0.525
0.675
0.875
1.250
1.750
2.500
3.750
5.250
6.750
Datum
Aer
osol
durc
hmes
ser
µm
9-108-97-86-75-64-53-42-31-20-1
µm3 /cm3
Saharastaub
Global Atmosphere Watch
Größenverteilung der Aerosolpartikeln am MOHp im Oktober 2000