Transcript Evaluation and Applications Surface Solar Radiation Data Set

Satellite-based Data
Sets for EURO4M
Jörg Trentmann, Uwe Pfeifroth,
Jennifer Lenhardt, Richard Müller
Deutscher Wetterdienst (DWD)
April 2013
1
Satellite-based data sets to be generated and
delivered within EURO4M
• Surface Solar Radiation
• Cloud Fraction
• Surface Albedo
• Precipitation
• Integrated Water Vapor
All data sets are provided as monthly means in
netcdf-format for the European Domain:
20W – 40E, 30N – 75N
April 2013
2
Surface Solar Radiation
a) Global Radiation (Irradiance)
•
•
•
•
•
Applications
• Climate Monitoring
• Solar Energy/Agricultural
Applications
• Reanalysis evaluation
Based on Meteosat
1983 – 2010
0.05 deg spatial resolution
Accuracy better than 10 W/m2
Homogeneous after 1995
April 2013
3
Surface Solar Radiation
b) Global Radiation (Irradiance)
•
•
•
•
Applications
• Climate Monitoring
• Solar Energy/Agricultural
Applications
• Reanalysis Evaluation
Based on AVHRR
1982 – 2009
0.25 spatial resolution
Accuracy better than 10 W/m2
• Data available
• Results from modified retrieval of solar
radiation currently under investigation,
• Merging of different data sets possible
April 2013
4
Cloud Fraction
Cloud Fraction
Applications
• Based on AVHRR
• 1982 – 2009
• 0.25 spatial resolution
• Climate Monitoring
• Reanalysis Evaluation
• Solar Energy Applications etc.
April 2013
5
Surface Albedo
Surface Albedo
Applications
• based on AVHRR
• 1982 – 2009
• 0.25 spatial resolution
• Climate Monitoring
• Reanalysis Evaluation
• Snow Monitoring, etc.
April 2013
6
Surface Precipitation
Precipitation
Applications
• based on GPCC / HOAPS 3.2
• 1987 – 2008
• 0.5 deg spatial resolution
• Climate Monitoring
• Reanalysis Evaluation
• Hydrological Modeling, etc.
April 2013
7
EURO4M Precipitation vs. GPCP
EURO4M
GPCP
• High spatial resolution
• GPCP overestimates
surface precipitation in
Europe
April 2013
8
Integrated Water Vapor
Water Vapor
Applications
• Based on ATOVS
• 1999 – 2010
• approx. 1 deg resolution
• Climate Monitoring
• Reanalysis Evaluation
• etc.
April 2013
9
Summary
• Selected satellite data sets already available
• Partly used already for evaluation of EURO4M
reanalysis data
• Surface Solar radiation data set will be further
assessed
• Data available via ftp-server upon request:
[email protected]
April 2013
10