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There are a total of 8 record(s) matching your query.
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Comparison of measured and modeled radiation, heat and water vapor fluxes: FIFE pilot study
Author(s): Blad, Blaine L.; Hubbard, Kenneth G.; Verma, Shashi B.; Starks, Patrick; Norman, John M.; Walter-Shea, Elizabeth
Abstract: The feasibility of using radio frequency receivers to collect data from automated weather stations to model fluxes of latent heat, sensible heat, and radiation using routine weather data collected by automated weather ...
NASA Center: NASA (non Center Specific) Publication Year: 1987
Added to NTRS: 2005-10-13
Accession Number: 87N15516; Document ID: 19870006083; Report Number: CAMAC-87-1, NAS 1.26:179989, NASA-CR-179989
Bidirectional reflectance modeling of non-homogeneous plant canopies
Author(s): Norman, John M.
Abstract: The objective of this research is to develop a 3-dimensional radiative transfer model for predicting the bidirectional reflectance distribution function (BRDF) for heterogeneous vegetation canopies. Leaf bidirectional ...
NASA Center: NASA (non Center Specific) Publication Year: 1986
Added to NTRS: 2005-10-13
Accession Number: 87N29901; Document ID: 19870020468; Report Number: NAS 1.26:181350, NASA-CR-181350
Measuring and modeling near surface reflected and emitted radiation fluxes at the FIFE site
Author(s): Blad, Blaine L.; Norman, John M.; Walter-Shea, Elizabeth; Starks, Patrick; Vining, Roel; Hays, Cynthia
Abstract: Research was conducted during the four Intensive Field Campaigns (IFC) of the FIFE project in 1987. The research was done on a tall grass prairie with specific measurement sites on and near the Konza Prairie in Kansas. ...
NASA Center: NASA (non Center Specific) Publication Year: 1988
Added to NTRS: 2005-10-13
Accession Number: 88N19818; Document ID: 19880010434; Report Number: CAMAC-PR-88-2, NAS 1.26:182660, NASA-CR-182660
Modeling energy and mass fluxes from prairie canopies
Author(s): Norman, John M.
Abstract: The main emphasis of this research project is on partitioning of mass and energy fluxes between vegetation and soil at the FIFE site, preparation of data from the FIFE Information System for an international thermal data set ...
NASA Center: NASA (non Center Specific) Publication Year: 1992
Added to NTRS: 2005-08-25
Accession Number: 93N18232; Document ID: 19930009043; Report Number: NAS 1.26:191801, NASA-CR-191801
Plant architecture, growth and radiative transfer for terrestrial and space environments
Author(s): Norman, John M.; Goel, Narendra S.
Abstract: The overall objective of this research was to develop a hardware implemented model that would incorporate realistic and dynamic descriptions of canopy architecture in physiologically based models of plant growth and ...
NASA Center: NASA (non Center Specific) Publication Year: 1993
Added to NTRS: 2005-08-25
Accession Number: 94N12559; Document ID: 19940008087; Report Number: NAS 1.26:193476, NASA-CR-193476
Comparison of measured and modeled radiation, heat and water vapor fluxes: FIFE pilot study
Author(s): Blad, Blaine L.; Verma, Shashi B.; Hubbard, Kenneth G.; Starks, Patrick; Hays, Cynthia; Norman, John M.; Waltershea, Elizabeth
Abstract: The primary objectives of the 1985 study were to test the feasibility of using radio frequency receivers to collect data from automated weather stations and to evaluate the use of the data collected by the automated weather ...
NASA Center: NASA (non Center Specific) Publication Year: 1988
Added to NTRS: 2005-08-25
Accession Number: 89N11368; Document ID: 19890001997; Report Number: CAMAC-PR-87-7, NAS 1.26:183304, NASA-CR-183304
Estimation of shortwave hemispherical reflectance (albedo) from bidirectionally reflected radiance data
Author(s): Starks, Patrick J.; Norman, John M.; Blad, Blaine L.; Walter-Shea, Elizabeth A.; Walthall, Charles L.
Abstract: An equation for estimating albedo from bidirectional reflectance data is proposed. The estimates of albedo are found to be greater than values obtained with simultaneous pyranometer measurements. Particular attention is ...
NASA Center: NASA (non Center Specific) Publication Year: 1991
Added to NTRS: 2004-11-03
Accession Number: 92A17887; Document ID: 19920035263
Prediction and measurement of soil bidirectional reflectance
Author(s): Irons, James R.; Campbell, Gaylon S.; Norman, John M.; Graham, David W.; Kovalick, William M.
Abstract: The present model for soil bidirectional reflectance distribution functions in the visible and reflective IR ranges is based on a representation of soil surfaces by a collection of opaque spheres atop a Lambertian horizontal ...
NASA Center: Goddard Space Flight Center Publication Year: 1992
Added to NTRS: 2004-11-03
Accession Number: 92A42280; Document ID: 19920059656
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