NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
BOREAS RSS-10 TOMS Circumpolar One-Degree PAR ImagesThe Boreal Ecosystem-Atmosphere Study (BOREAS) Remote Sensing Science (RSS)-10 team investigated the magnitude of daily, seasonal, and yearly variations of Photosynthetically Active Radiation (PAR) from ground and satellite observations. This data set contains satellite estimates of surface-incident PAR (400-700 nm, MJ/sq m) at one-degree spatial resolution. The spatial coverage is circumpolar from latitudes of 41 to 66 degrees north. The temporal coverage is from May through September for years 1979 through 1989. Eleven-year statistics are also provided: (1) mean, (2) standard deviation, and (3) coefficient of variation for 1979-89. The PAR estimates were derived from the global gridded ultraviolet reflectivity data product (average of 360, 380 nm) from the Nimbus-7 Total Ozone Mapping Spectrometer (TOMS). Image mask data are provided for identifying the boreal forest zone, and ocean/land and snow/ice-covered areas. The data are available as binary image format data files. The PAR data are available from the Earth Observing System Data and Information System (EOSDIS) Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC). The data files are available on a CD-ROM (see document number 20010000884).
Document ID
20000117684
Acquisition Source
Goddard Space Flight Center
Document Type
Technical Memorandum (TM)
Authors
Dye, Dennis G.
(Boston Univ. Boston, MA United States)
Holben, Brent
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Nickeson, Jaime
(Raytheon Information Technology and Scientific Services Greenbelt, MD United States)
Hall, Forrest G.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Smith, David E.
Date Acquired
September 7, 2013
Publication Date
August 1, 2000
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
NAS 1.15:209891/VOL57
NASA/TM-2000-209891/VOL57
Rept-2000-03136-0/VOL57
Funding Number(s)
PROJECT: RTOP 923-462-33-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available