NASA Surface meteorology and Solar Energy: Global/Regional Data

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Parameters for Solar Systems
Insolation (kWh/m2/day)
Minimum Insolation (kWh/m2/day)
Maximum Insolation (kWh/m2/day)
Insolation [El Nino 1987] (kWh/m2/day)
Insolation [La Nina 1988] (kWh/m2/day)
Insolation at 0 GMT (kW/m2)
Insolation at 3 GMT (kW/m2)
Insolation at 6 GMT (kW/m2)
Insolation at 9 GMT (kW/m2)
Insolation at 12 GMT (kW/m2)
Insolation at 15 GMT (kW/m2)
Insolation at 18 GMT (kW/m2)
Insolation at 21 GMT (kW/m2)
Insolation Clearness Index
Insolation Normalized Clearness Index
Clear Sky Insolation (kWh/m2/day)
Clear Sky Insolation Clearness Index
Clear Sky Insolation Normalized Clearness Index
Clear Sky Days

Parameters for Sizing Battery
or other Energy-storage Systems

Maximum equivalent number of NO-SUN days (days)

Cloud Information
Cloud Amount at 0 GMT
Cloud Amount at 3 GMT
Cloud Amount at 6 GMT
Cloud Amount at 9 GMT
Cloud Amount at 12 GMT
Cloud Amount at 15 GMT
Cloud Amount at 18 GMT
Cloud Amount at 21 GMT

Supporting Information
Near Surface Precipitable Water (cm)
Total Column Precipitable Water (cm)
Top of Atmosphere Insolation (kWh/m2/day)
Surface Albedo

Meteorology (Temperature)
Air Temperature (° C)
Air Temperature [El Nino 1987] (° C)
Air Temperature [La Nina 1988] (° C)
Daily Temperature Range (° C)
Heating degree-days below 18 ° C
Earth Skin Temperature (° C)
Frost Days (days)
Dew Point (° C)

Meteorology (Other)
Relative Humidity (%)
Humidity Ratio(kg/kg)
Air Pressure (Pa)

Meteorology (Wind)
Wind Speed (m/s)
Wind Speed [El Nino 1987] (m/s)
Wind Speed [La Nina 1988] (m/s)
Wind Direction (degrees)
Wind Direction [El Nino 1987] (degrees)
Wind Direction [La Nina 1988] (degrees)
Wind Frequency (0-2 m/s)
Wind Frequency (3-6 m/s)
Wind Frequency (7-10 m/s)
Wind Frequency (11-14 m/s)
Wind Frequency (15-18 m/s)
Wind Frequency (19-25 m/s)
Wind Direction For Wind Frequency (0-2 m/s)
Wind Direction For Wind Frequency (3-6 m/s)
Wind Direction For Wind Frequency (7-10 m/s)
Wind Direction For Wind Frequency (11-14 m/s)
Wind Direction For Wind Frequency (15-18 m/s)
Wind Direction For Wind Frequency (19-25 m/s)


Additional information about the SSE data set
Accuracy Methodology Parameters (Units & Definition)

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Responsible NASA Official: Richard McGinnis
Site Administration: NASA Langley ASDC User Services
Site URL:
http://eosweb.larc.nasa.gov/sse/
Document generated on Thu Oct 12 10:07:08 2000
http://earth-www.larc.nasa.gov/cgi-bin/cgiwrap/solar/sse.cgi