_:genid1 . _:genid1 "BOREAS_RSS10TOM" . _:genid2 . _:genid2 . _:genid2 "65.5"^^ . _:genid2 "41.5"^^ . _:genid2 "180"^^ . _:genid2 "-180"^^ . _:genid3 . _:genid3 . _:genid3 "1979-05-01T00:00:00"^^ . _:genid3 "1989-09-30T00:00:00"^^ . "nasa-ornldaac-443" . "BOREAS RSS-10 TOMS Circumpolar One-Degree PAR Images"^^ . "10.3334/ORNLDAAC/443" . _:genid1 . . "ABSTRACT: The BOREAS RSS-10 team investigated the magnitude of daily, seasonal, and yearly variations of PAR from ground and satellite observations. This data set contains satellite estimates of surface-incident photosynthetically active radiation (PAR, 400-700 nm, MJ m-2) at 1 degree spatial resolution. The spatial coverage is circumpolar from latitudes of 41 to 66 degrees N latitude. The temporal coverage is from May through September for years 1979 through 1989. Eleven-year statistics are also provided: mean, standard deviation, and coefficient of variation for 1979-1989. 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. Companion files include example thumbnail images that may be viewed and the image data files downloaded using a convenient viewer utility."^^ . "1999-01-01T00:00:00"^^ . _:genid2 . _:genid3 . . . _:genid4 . _:genid4 . _:genid4 . _:genid4 . "oai:mercury-ops2.ornl.gov:ornldaac_443" . "http://mercury.ornl.gov/oai/provider?verb=GetRecord&metadataPrefix=oai_dif&identifier=oai:mercury-ops2.ornl.gov:ornldaac_443" . . "oai:mercury.ornl.gov:ornldaac_443" . "http://mercury.ornl.gov/oai/provider?verb=GetRecord&metadataPrefix=oai_dif&identifier=oai:mercury.ornl.gov:ornldaac_443" . .