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Download Observational 4x3 DataFiles

Observational DataFiles listed on this page are highlighted and clickable only in order to allow users to download them using the browser's capability of downloading individual files. Researchers and references are available. All data was horizontally interpolated to the Atmosphere-Ocean Model's 4x3 grid. The Fortran source programs that were used to convert the observational data to the Model's 4x3 DataFile format are accessible via the link in this sentence.

If you intend to download several DataFiles, it will be more efficient to use the AOM web site's anonymous ftp site where the DataFiles actually reside.
From a UNIX prompt, enter: ftp aom.giss.nasa.gov
For Name enter: anonymous
For Password enter your E-mail address or anything.
Change directory to the 4x3 data: cd 4X3/OBS
Useful commands when using anonymous ftp sites are: binary , dir , cd , pwd , get , mget , quit .
You should execute binary before getting any DataFiles.
Make sure that the size of the DataFile you obtained is identical to that on the ftp site.

You may want to download QDF.FOR which is a Fortran program that lists the record titles of a DataFile.

Following is a list of climatological (multi year) DataFiles containing 12 or 13 records for each month and annual values:

Temperature
T200.NCEP NCEP Air Temperature (°C) at 200 mb
T500.NCEP NCEP Air Temperature (°C) at 500 mb
T850.NCEP NCEP Air Temperature (°C) at 850 mb
TS.LEGA Legates & Willmott Surface Air Temperature (°C)
TS.NCEP NCEP Surface Air Temperature (°C)
TS.SHEA Shea Surface Air Temperature (°C)
TS.MAY May, Shea & Madden Surface Air Temperature (°C)
TS.UEA Univ. East Anglia Surface Air Temperature (°C)
TSDR.MAY May, Shea & Madden Diurnal Range in Surface Air Temperature (°C)
TSDR.UEA Univ. East Anglia Diurnal Range in Surface Air Temperature (°C)
TOS.AMIP AMIP Ocean Surface Temperature (°C)
TOS.LEV Levitus, Burgett & Boyer Ocean Surface Temperature (°C)
TOS.ROBB Robinson & Bauer Ocean Surface Temperature (°C)
TOS.SHEA Shea Ocean Surface Temperature (°C)

Radiation
RSPI.ERBE ERBE Solar Radiation Incident on Planet (W/m²)
RSPI.ISCCP ISCCP Solar Radiation Incident on Planet (W/m²)
RSPA.ERBE ERBE Solar Radiation Absorbed by Planet (W/m²)
RSPA.ISCCP ISCCP Solar Radiation Absorbed by Planet (W/m²)
ALBP.ERBE ERBE Planetary ALBedo (%)
ALBP.ISCCP ISCCP Planetary ALBedo (%)
RTPE.ERBE ERBE Thermal Radiation Emitted by Planet (W/m²)
RTPE.ISCCP ISCCP Thermal Radiation Emitted by Planet (W/m²)
CLDT.ISCCP ISCCP CLouD cover (%)
CLDT.UEA Univ. East Anglia CLouD cover (%)
RSSI.ISCCP ISCCP Solar Radiation Incident on Surface (W/m²)
RSSI.LANG Langley Solar Radiation Incident on Surface (W/m²)
RSSA.ISCCP ISCCP Solar Radiation Absorbed by Surface (W/m²)
RSSA.LANG Langley Solar Radiation Absorbed by Surface (W/m²)
ALBS.ISCCP ISCCP Surface ALBedo (%)
ALBS.LANG Langley Surface ALBedo (%)
RTSD.ISCCP ISCCP Thermal Radiation Downward onto Surface (W/m²)
RTSD.LANG Langley Thermal Radiation Downward onto Surface (W/m²)
RTSE.ISCCP ISCCP Thermal Radiation Emitted by Surface (W/m²)
RTSE.LANG Langley Thermal Radiation Emitted by Surface (W/m²)

Heat Flux
HSEN.GSSTF GSSTF SENsible Heat flux from surface (W/m²)
HLAT.GSSTF GSSTF LATent Heat flux from surface (W/m²)

Water
Q500.NCEP NCEP Specific humidity (g/kg) at 500 mb
Q850.NCEP NCEP Specific humidity (g/kg) at 850 mb
QAS.GSSTF GSSTF Surface Air Specific humidity (g/kg)
PREC.DEKLIM German Climate Research PRECipitation (mm/day)
PREC.GPCP GPCP PRECipitation (mm/day)
PREC.LEGA Legates & Willmott PRECipitation (mm/day)
PREC.SHEA Shea PRECipitation (mm/day)
PREC.UEA Univ. East Anglia PRECipitation (mm/day)
SNOWC.ROBN Robinson SNOW Cover (%)
SIC.AMIP AMIP Sea Ice Cover (%)
SIC.GSFC Goddard Space Flight Cen. Sea Ice Cover (%)

Salt
SOS.LEV Levitus, Burgett & Boyer Ocean Surface Salinity (psu)

Pressure
PS.NCEP NCEP Surface Pressure (mb)
PVS.UEA Univ. East Anglia Surface Vapor Pressure (mb)
PSL.SHEA Shea Sea Level Pressure (mb)

Height
Z200.NCEP NCEP Geopotential height (m) at 200 mb
Z500.NCEP NCEP Geopotential height (m) at 500 mb
Z850.NCEP NCEP Geopotential height (m) at 850 mb

Velocity
WAS.UEA Univ. East Anglia Surface Wind Speed (m/s)


Following is a list of transient DataFiles with different time frequencies (A1 = annual; M10 = decade monthly; A10 = decade annual):

Temperature
A1 M10 A10 T200.NCEP Air Temperature (°C) at 200 mb
A1 M10 A10 T500.NCEP Air Temperature (°C) at 500 mb
A1 M10 A10 T850.NCEP Air Temperature (°C) at 850 mb
A1 M10 A10 TS.NCEP Surface Air Temperature (°C)
A1 M10 A10 TOS.AMIP Ocean Surface Temperature (°C)

Water
A1 M10 A10 Q500.NCEP Specific Humidity (g/kg) at 500 mb
A1 M10 A10 Q850.NCEP Specific Humidity (g/kg) at 850 mb
A1 M10 A10 PREC.DEKLIM PRECipitation (mm/day)
A1 M10 A10 SIC.AMIP Sea Ice Cover (%)

Pressure
A1 M10 A10 PS.NCEP Surface Pressure (mb)

Height
A1 M10 A10 Z200.NCEP Geopotential Height (m) at 200 mb
A1 M10 A10 Z500.NCEP Geopotential Height (m) at 500 mb
A1 M10 A10 Z850.NCEP Geopotential Height (m) at 850 mb



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Curator: Gary L. Russell . . . . . 2007/06/13/12:30:55