Earth Science Products from International Satellite Cloud Climatology Project (ISCCP)

Point of contact for ISCCP Data:

NASA/LaRC Atmospheric Science Data Center (ASDC)
NASA Langley Research Center
Mail Stop 157D
2 South Wright Street
Hampton, VA 23681-2199, U.S.A
Email: larc@eos.nasa.gov
Phone: (757) 864-8656
FAX: (757) 864-8807
URL: http://eosweb.larc.nasa.gov/PRODOCS/isccp/table_isccp.html

Website:

http://isccp.giss.nasa.gov/index.html

Product Name Product Definition Product Units Spatial Resolution Temporal Resolution Coverage Area Product Format Period of Product Availability

Ice/Snow Fractional Coverage 5-day averages deduced from ship/shore station reports and satellite visible, infrared, and microwave imagery data Percent 150-km equal-area grid 5-days Global Native July 1983-December 1999

Mean Temperature in Layers 5-day average data from TIROS Operational Vertical Sounder (TOVS) for: Layers: surface-500 mb, 500-300 mb, 300-100 mb, and 100-30 mb K 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Precipitable Water Profile 5-day average data from TIROS Operational Vertical Sounder (TOVS) for: Layers: surface, 850 mb, 700 mb, 500 mb, 300 mb cm 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Surface Skin Temperature 5-day average data from TIROS Operational Vertical Sounder (TOVS) K 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Total Effective Cloud Fraction 5-day average data from TIROS Operational Vertical Sounder (TOVS) No units 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Cloud Fraction in Layers 5-day average data from TIROS Operational Vertical Sounder (TOVS) for: Layers: <180 mb, 180-310 mb, 310-440 mb, 440-560 mb, 560-680 mb, 680-800 mb, >800 mb No units 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Cloud Top Pressure 5-day average data from TIROS Operational Vertical Sounder (TOVS) mb 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Cloud Top Temperature 5-day average data from TIROS Operational Vertical Sounder (TOVS) K 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Longwave Cloud Radiative Forcing 5-day average data from TIROS Operational Vertical Sounder (TOVS) for the difference between the cloudy and clear sky out-going long wave radiation (OLR) W/m² 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Precipitation Estimate 5-day average data from TIROS Operational Vertical Sounder (TOVS) mm/day 1 degree x 1 degree 5-days Global Native January 1985-December 1995

Atmospheric Radiance W/m²/sr 30-km mapped pixel 3-hour Global Native July 1983-December 2004

Atmospheric Reflectance No units 30-km mapped pixel 3-hour Global Native July 1983-December 2004

Clear Sky Composite Temperature An estimate of the temperature for a cloudless sky (ex., clear scenes) that uses the radiances obtained from different satellites K 30-km mapped pixel 3-hour Global Native July 1983-December 2004

Clear Sky Composite Pressure An estimate of the pressure for a cloudless sky (ex., clear scenes) that uses the radiances obtained from different satellites mb 30-km mapped pixel 3-hour Global Native July 1983-December 2004

Clear Sky Composite Pressure An estimate of the pressure for a cloudless sky (ex., clear scenes) that uses the radiances obtained from different satellites mb 30-km mapped pixel 3-hour Global Native July 1983-December 2004

Cloud Optical Thickness No Units 30-km mapped pixel 3-hour Global Native July 1983-December 2004

Surface Reflectance No Units 280-km equal-area pixel 3-hour/monthly Global Native July 1983-June 1991

Snow/Ice Cover Fraction Percent 280-km equal-area pixel 3-hour/monthly Global Native July 1983-June 1991

Cloud Top Pressure Distribution Levels: [180, 310, 440, 560, 680, 800, 1000 mb] mb 280-km equal-area pixel 3-hour/monthly Global Native July 1983-June 1991

Cloud Optical Thickness Distribution Levels: [180, 310, 440, 560, 680, 800, 1000 mb] No units 280-km equal-area pixel 3-hour/monthly Global Native July 1983-June 1991

Atmospheric Temperature Distribution Layers: [900,740, 620, 500, 375, 245, 125, 50 and 15 mb] K 280-km equal-area pixel 3-hour/monthly Global Native July 1983-June 1991

Precipitable Water Total Column and 560-400mb layer cm 280-km equal-area pixel monthly Global Native July 1983-December 2004

Frequency of Cloud Amount Percentage groups: [0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80, 80-90 and 90-100%] No units 280-km equal-area pixel monthly Global Native July 1983-December 2004

Mean Cloud Water Path Column amount of liquid water in the cloud.The measured cloud optical thickness is combined with the assumed particle size distribution to calculate the column mass density of the cloud g/m² 280-km equal-area pixel 3-hour/monthly Global Native July 1983-June 1994

Albedo Surface broadband SW (0.2-5.0 micron) No units 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

Emissivity Surface broadband LW (5.0-200.0 micron) No units 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

Total Column Ozone Dobson units 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

Mean Cloud Base Pressure mb 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

SW Downwelling Radiation Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA] W/m² 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

SW Upwelling Radiation Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA] W/m² 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

LW Upwelling Radiation Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA] W/m² 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

LW Downwelling Radiation Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA] W/m² 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

Cloud Fraction Defined for 15 Types of Clouds Daytime Cumulus, Daytime Stratocumulus, Daytime Stratus, Daytime Altocumulus, Daytime Altostratus, Daytime Nimbostratus, Daytime Cirrus, Daytime Cirrostratus, Daytime Deep Convective, VIS-IR Low-Level, VIS-IR Middle-Level, VIS-IR High-Level, IR Low-Level, IR Middle-Level, IR High-Level No units 280-km equal-area pixel 3-hour Global Native July 1983-December 2004

Product Name	Product Definition	Product Units	Spatial Resolution	Temporal Resolution	Coverage Area	Product Format	Period of Product Availability
Ice/Snow Fractional Coverage	5-day averages deduced from ship/shore station reports and satellite visible, infrared, and microwave imagery data	Percent	150-km equal-area grid	5-days	Global	Native	July 1983-December 1999
Mean Temperature in Layers	5-day average data from TIROS Operational Vertical Sounder (TOVS) for: Layers: surface-500 mb, 500-300 mb, 300-100 mb, and 100-30 mb	K	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Precipitable Water Profile	5-day average data from TIROS Operational Vertical Sounder (TOVS) for: Layers: surface, 850 mb, 700 mb, 500 mb, 300 mb	cm	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Surface Skin Temperature	5-day average data from TIROS Operational Vertical Sounder (TOVS)	K	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Total Effective Cloud Fraction	5-day average data from TIROS Operational Vertical Sounder (TOVS)	No units	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Cloud Fraction in Layers	5-day average data from TIROS Operational Vertical Sounder (TOVS) for: Layers: <180 mb, 180-310 mb, 310-440 mb, 440-560 mb, 560-680 mb, 680-800 mb, >800 mb	No units	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Cloud Top Pressure	5-day average data from TIROS Operational Vertical Sounder (TOVS)	mb	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Cloud Top Temperature	5-day average data from TIROS Operational Vertical Sounder (TOVS)	K	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Longwave Cloud Radiative Forcing	5-day average data from TIROS Operational Vertical Sounder (TOVS) for the difference between the cloudy and clear sky out-going long wave radiation (OLR)	W/m²	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Precipitation Estimate	5-day average data from TIROS Operational Vertical Sounder (TOVS)	mm/day	1 degree x 1 degree	5-days	Global	Native	January 1985-December 1995
Atmospheric Radiance		W/m²/sr	30-km mapped pixel	3-hour	Global	Native	July 1983-December 2004
Atmospheric Reflectance		No units	30-km mapped pixel	3-hour	Global	Native	July 1983-December 2004
Clear Sky Composite Temperature	An estimate of the temperature for a cloudless sky (ex., clear scenes) that uses the radiances obtained from different satellites	K	30-km mapped pixel	3-hour	Global	Native	July 1983-December 2004
Clear Sky Composite Pressure	An estimate of the pressure for a cloudless sky (ex., clear scenes) that uses the radiances obtained from different satellites	mb	30-km mapped pixel	3-hour	Global	Native	July 1983-December 2004
Clear Sky Composite Pressure	An estimate of the pressure for a cloudless sky (ex., clear scenes) that uses the radiances obtained from different satellites	mb	30-km mapped pixel	3-hour	Global	Native	July 1983-December 2004
Cloud Optical Thickness		No Units	30-km mapped pixel	3-hour	Global	Native	July 1983-December 2004
Surface Reflectance		No Units	280-km equal-area pixel	3-hour/monthly	Global	Native	July 1983-June 1991
Snow/Ice Cover Fraction		Percent	280-km equal-area pixel	3-hour/monthly	Global	Native	July 1983-June 1991
Cloud Top Pressure Distribution	Levels: [180, 310, 440, 560, 680, 800, 1000 mb]	mb	280-km equal-area pixel	3-hour/monthly	Global	Native	July 1983-June 1991
Cloud Optical Thickness Distribution	Levels: [180, 310, 440, 560, 680, 800, 1000 mb]	No units	280-km equal-area pixel	3-hour/monthly	Global	Native	July 1983-June 1991
Atmospheric Temperature Distribution	Layers: [900,740, 620, 500, 375, 245, 125, 50 and 15 mb]	K	280-km equal-area pixel	3-hour/monthly	Global	Native	July 1983-June 1991
Precipitable Water	Total Column and 560-400mb layer	cm	280-km equal-area pixel	monthly	Global	Native	July 1983-December 2004
Frequency of Cloud Amount	Percentage groups: [0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80, 80-90 and 90-100%]	No units	280-km equal-area pixel	monthly	Global	Native	July 1983-December 2004
Mean Cloud Water Path	Column amount of liquid water in the cloud.The measured cloud optical thickness is combined with the assumed particle size distribution to calculate the column mass density of the cloud	g/m²	280-km equal-area pixel	3-hour/monthly	Global	Native	July 1983-June 1994
Albedo	Surface broadband SW (0.2-5.0 micron)	No units	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
Emissivity	Surface broadband LW (5.0-200.0 micron)	No units	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
Total Column Ozone		Dobson units	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
Mean Cloud Base Pressure		mb	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
SW Downwelling Radiation	Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA]	W/m²	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
SW Upwelling Radiation	Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA]	W/m²	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
LW Upwelling Radiation	Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA]	W/m²	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
LW Downwelling Radiation	Clear sky, full sky and 100% overcast at the following vertical locations: [Surface, 680, 440, and 100 mb and TOA]	W/m²	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004
Cloud Fraction Defined for 15 Types of Clouds	Daytime Cumulus, Daytime Stratocumulus, Daytime Stratus, Daytime Altocumulus, Daytime Altostratus, Daytime Nimbostratus, Daytime Cirrus, Daytime Cirrostratus, Daytime Deep Convective, VIS-IR Low-Level, VIS-IR Middle-Level, VIS-IR High-Level, IR Low-Level, IR Middle-Level, IR High-Level	No units	280-km equal-area pixel	3-hour	Global	Native	July 1983-December 2004

ISCCP-EM

Earth Science Products from International Satellite Cloud Climatology Project (ISCCP)

Point of contact for ISCCP Data:

Website: