Zhanqing Li February 15, 1993The data are here.
The ERBE consists of 3 satellites, NOAA 9, 10 and ERBS. NOAA satellites were in sun-synchronous polar orbits, while ERBS has an orbit inclined 57 degrees relative to the equator which allows observations at different local times. ERBE has both scanning and non-scanning radiometers. Gridded product at 2.5X2.5 degrees was derived from scaner observations. ERBS scaner began observation in Nov. 1984 and failed in February 1990. NOAA 9 scanner operated from Jan 1985 to Jan 1987, while NOAA 10 from Oct 1986 to May 1989. The period covered by the S-4 product is not exactly same as the scanner operation time but a bit shorter. S-4 product contains both single data measured from one satellite and combined data from more than one satellites. The principle of data selection in the acquisition of SRB and ARB is that single data were not used unless combined data were not available.
For detailed description of S-4 data, please refer to The Regional, Zonal, and Global Averages, S-4, User's Guide, available from NASA Langley, Hampton, Virginia, USA
The procedure of deriving global SRB and ARB and discussion of the results were presented in
Li, Z., and H.G. Leighton, 1993, Global climatology of the solar radiation budgets at the surface and in the atmosphere from 5 years of ERBE data, J. Geophy. Res.- Atmosphere, 98, 4919-4930.
For detailed description of the algorithm, please refer to
Li, Z., H.G. Leighton, K. Masuda and T. Takashima, 1993, Estimation of SW flux absorbed at the surface from TOA reflected flux, J. Climate, 6, 317-330.
Preliminary validation against surface observations can be found from
Li, Z., H.G. Leighton, and R.D. Cess, 1993, Surface net solar radiation estimated from satellite measurements: Comparisons with tower observations, J. Climate (September, 1993)
erbe | glob | part | | | srb | arb | srb | arb | | | | | | | month | mean | month | mean | month/ | mean | month/ | mean / | \ / | \ / | \ / | \ / | \ / | \ / | \ / | \ clr cld for clr cld for clr cld for clr cld for
Should you have any problem, please do not hesitate to contact Dr. Zhanqing Li Global Monitoring Section Applications Division Canada Centre for Remote Sensing 588 Booth Street Ottawa, Ontario Canada K1A 0Y7 Phone: 613-947-1311 Fax: 613-947-1406 INTERNET: LI@CCRS.EMR.CA