The Fog Remote Sensing and Modeling (FRAM) Field Project and Preliminary Results. I.Gultepe 1 Cloud...
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Transcript of The Fog Remote Sensing and Modeling (FRAM) Field Project and Preliminary Results. I.Gultepe 1 Cloud...
The Fog Remote Sensing and Modeling (FRAM) Field Project and Preliminary
Results. I.Gultepe
1Cloud Physics and Severe Weather Research Section,Science and Technology Branch, Environment Canada
Toronto, Ontario, M3H 5T4, Canada
FRAM-LUNENBURG
Vaisala FD12P
EPPLEY radiometer
Campbell Scientific HMP45C
Young 81000 Sonic anemometer (YUSA)
MWR TP3000
DMT FMDSPP-FM
VIDEO camera
Climatronic aerosol profiler (CAP)
Vaisala CeilometerCT25K
0 500 1000 15000
0.05
0.1
Time [min]
Nif [106 m
-2s-1
] Feb 10, 2006
IPC1IPC2
Ni and VIS
0 500 1000 15000
50
100
Time [min]
Vis
ibility
[km
] Feb 10, 2006
CONCLUSIONS• PARAMETRIZATION OF VISIBILITY IS
STILL IN THE QUESTION BECAUSE PARTICLES SIZES < 2-3 MICRON ARE IMPORTANT FOR EXTINCTION CALCULATIONS
• PRESENT FORECASTING MODELS (e.g. RUC MODEL) USE ONLY VIS-LWC RELATIOSHIPS THAT CAUSE LARGE UNCERTAINTIES IN VIS.
• PHYSICS, FORMATION, DEVELOPMENT, AND DISSIPATION OF MARINE AND CONTINENTAL FOGS ARE SIGNIFICANTLY DIFFERENT AND THAT NEEDS TO BE PAID MORE ATTENTION.
• PHYSICS OF FOG DROPLETS CAN HELP US BETTER UNDERSTAND NUCLEATION OF DROPLETS WITHIN THE CLOUD
INTEGRATION OF OBSERVATIONS AND DATA FROM MULTIPLE PLATFORMS ARE NEEDED TO BETTER FORECAST FOG.
OCCURRENCE OF FOG IN VARIOUS TIME AND SPACE SCALES RESULTS LIKELY UNDERESTIMATE OF ITS CLIMATOLOGY