+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Norman, John M. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 8 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 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 + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007