_:genid1 . _:genid1 "BOREAS_RS20HELO" . _:genid2 . _:genid2 . _:genid2 "55.9"^^ . _:genid2 "53.9"^^ . _:genid2 "-98.29"^^ . _:genid2 "-104.64"^^ . _:genid3 . _:genid3 . _:genid3 "1994-06-07T00:00:00"^^ . _:genid3 "1994-09-17T00:00:00"^^ . "nasa-ornldaac-306" . "BOREAS RSS-20 POLDER Helicopter-Mounted Measurements of Surface BRDF"^^ . "10.3334/ORNLDAAC/306" . _:genid1 . . "ABSTRACT: This data set contains measurements of surface BRDF made by the POLDER instrument over several sites (pine, spruce, fen) of the BOREAS study areas during 1994. Single-point BRDF values were acquired from NASA's WFF helicopter. A related data set collected from the C-130 platform is available as is POLDER imagery acquired from the C-130."^^ . "1999-01-01T00:00:00"^^ . _:genid2 . _:genid3 . . _:genid4 . _:genid4 . _:genid4 . _:genid4 . "oai:mercury-ops2.ornl.gov:ornldaac_306" . "http://mercury.ornl.gov/oai/provider?verb=GetRecord&metadataPrefix=oai_dif&identifier=oai:mercury-ops2.ornl.gov:ornldaac_306" . . "oai:mercury.ornl.gov:ornldaac_306" . "http://mercury.ornl.gov/oai/provider?verb=GetRecord&metadataPrefix=oai_dif&identifier=oai:mercury.ornl.gov:ornldaac_306" . .