Download or read book Radiation Fluxes at the Fife Site written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-13 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of the International Satellite Land Surface Climatology Project (ISLSCP) has been stated as 'the development of techniques that may be applied to satellite observations of the radiation reflected and emitted from the Earth to yield quantitative information concerning land surface climatological conditions'. The major field study, FIFE (the First ISLSCP Field Experiment), was conducted in 1987-89 to accomplish this objective. Four intensive field campaigns (IFC's) were carried out in 1987 and one in 1989. Factors contributing to observed reflected radiation from the FIFE site must be understood before the radiation observed by satellites can be used to quantify surface processes. Our last report (Walter-Shea et al., 1992b) focused on slope effects on incoming and outgoing shortwave radiation and net radiation from data collected in 1989. We report here on the final analysis of the slope data as well as results from thermal radiation studies conducted during the FIFE experiment. The specific areas reported are the following: (1) analysis of slope effects on measured reflectance values and estimates of surface albedo; (2) using remotely-measured surface temperatures as a means of estimating sensible heat flux from the Konza Prairie; (3) extracting canopy temperatures from remotely-measured composite surface temperatures; (4) modeling the measured composite temperature of partially vegetated surfaces; and (5) estimating gap distribution in partially vegetated surfaces from reflectance measurements. Walter-Shea, Elizabeth A. and Blad, Blaine L. and Zara, Pedro and Vining, Roel and Hays, Cynthia J. and Mesarch, Mark A. Unspecified Center...
Download or read book Radiation Fluxes at the FIFE Site written by Elizabeth A. Walter-Shea and published by . This book was released on 1993 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring and Modeling Near Surface Reflected and Emitted Radiation Fluxes at the Fife Site written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-12-28 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. Measurements were made to help meet the following objectives: determination of the variability in reflected and emitted radiation fluxes in selected spectral wavebands as a function of topography and vegetative community; development of techniques to account for slope and sun angle effects on the radiation fluxes; estimation of shortwave albedo and net radiation fluxes using the reflected and emitted spectral measurements described; estimation of leaf and canopy spectral properties from calculated normalized differences coupled with off-nadir measurements using inversion techniques; estimation of plant water status at several locations with indices utilizing plant temperature and other environmental parameters; and determination of relationships between estimated plant water status and measured soil water content. Results are discussed. Blad, Blaine L. and Norman, John M. and Walter-Shea, Elizabeth and Starks, Patrick and Vining, Roel and Hays, Cynthia NASA-CR-182660, NAS 1.26:182660, CAMAC-PR-88-2 NAG5-894...
Download or read book Measuring and Modeling Near surface Reflected and Emitted Radiation Fluxes and the FIFE Site written by Blaine L. Blad and published by . This book was released on 1990 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measured and Modeled Radiation Fluxes from Prairie Vegetation at the FIFE Study Site written by Patrick James Starks and published by . This book was released on 1990 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring and Modeling Near Surface Reflected and Emitted Radiation Fluxes at the FIFE Site written by Blaine L. Blad and published by . This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring and Modeling Near surface Reflected and Emitted Radiation Fluxes and the FIFE Site written by and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Measured and Modeled Radiation Heat and Water Vapor Fluxes Fife Pilot Study written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-04 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 stations for modeling the fluxes of latent heat, sensible heat, and radiation over wheat. The model Cupid was used to calculate these fluxes which were compared with fluxes of these entities measured using micrometeorological techniques. The primary objectives of the 1986 study were to measure and model reflected and emitted radiation streams at a few locations within the First International Satellite Land-Surface Climatology Project Field Experiment (FIFE) site and to compare modeled and measured latent heat and sensible heat fluxes from the prairie vegetation. Blad, Blaine L. and Verma, Shashi B. and Hubbard, Kenneth G. and Starks, Patrick and Hays, Cynthia and Norman, John M. and Waltershea, Elizabeth Unspecified Center...
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Surface Energy and Radiation Balance Systems for Fife written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-06 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The energy balance and radiation balance components were determined at six sites during the First International Satellite Land Surface Climatology Project Field Experiment (FIFE) conducted south of Manhattan, Kansas during the summer of 1987. The objectives were: to determine the effect of slope and aspect, throughout a growing season, on the magnitude of the surface energy balance fluxes as determined by the Energy Balance Method (EBM); to investigate the calculation of the soil heat flux density at the surface as calculated from the heat capacity and the thermal conductivity equations; and to evaluate the performance of the Surface Energy and Radiation Balance System (SERBS). A total of 17 variables were monitored at each site. They included net, solar (up and down), total hemispherical (up and down), and diffuse radiation, soil temperature and heat flux density, air and wet bulb temperature gradients, wind speed and direction, and precipitation. A preliminary analysis of the data, for the season, indicate that variables including net radiation, air temperature, vapor pressure, and wind speed were quite similar at the sites even though the sites were as much as 16 km apart and represented four cardinal slopes and the top of a ridge. Fritschen, Leo J. and Qian, Ping Unspecified Center...
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1995 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1988 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Surface Atmosphere Interactions for Climate Modeling written by E.F. Wood and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that the interactions between land surfaces and the atmosphere, and the resulting exchanges in water and energy have a tremendous affect on climate. The inadequate representation of land-atmosphere interactions is a major weakness in current climate models, and is providing the motivation for the HAPEX and ISLSCP experiments as well as the proposed Global Energy and Water Experiment (GEWEX) and the Earth Observing System (EOS) mission. The inadequate representation reflects the recognition that the well-known phys ical relationships, which are well described at small scales, result in different relationships when represented at the scales used in climate models. Understanding this transition in the mathematical relationships with increased space-time scales appears to be very difficult, and has led to different approaches; at one extreme, the famous "bucket" model where the land-surface is a simple one layer storage without vegetation; the other extreme may be Seller's Simple Biosphere Model (Sib) where one big leaf covers the climate model grid. Given the heterogeneous nature of landforms, soils and vegetation within a climate model grid, the development of new land surface parameterizations, and their verification through large scale experiments is perceived to be a challenging area of research for the hydrology and meteorology communities. This book evolved from a workshop held at Princeton University to explore the status of land surface parameterizations within climate models, and how observa tional data can be used to assess these parameterizations and improve models.
Download or read book Comparison of Measured and Modeled Radiation Heat and Water Vapor Fluxes written by Blaine L. Blad and published by . This book was released on 1988 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Land Surface Evaporation written by Thomas J. Schmugge and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: General circulation model (GCM) experiments in the late 1970's indicated that the climate is sensitive to variations in evaporation at the land surface. Thus, in the context of climate modeling, it became important to develop techniques which would realistically estimate the evaporation flux on land. Land Surface Evaporation: Measurement and Parameterization discusses strategies for the use of experimental data in developing and testing parameterization schemes of the evaporation flux in GCM's. The book reviews state-of-the-art techniques, such as remote sensing, which measure evaporation fluxes over continental surfaces. It evaluates their relevance with respect to the various spatial and temporal scales of interest. This book will provide researchers in climatology, meteorology, hydrology and water management, and remote sensing with a thorough overview of current research in land surface evaporation. It will also give young scientists insight into surface processes.
Download or read book Remote Sensing of the Terrestrial Hydrologic Cycle written by Qiuhong Tang and published by MDPI. This book was released on 2020-06-17 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a practical introduction to remote sensing applications for detecting changes in the terrestrial water cycle and understanding the causes and consequences of these changes. Covering a wide range of innovative remote sensing approaches for hydrological study, this book contributes significantly to the knowledge base of hydrology in the Anthropocene, i.e., global change hydrology. It is an excellent reference for students and professionals in the fields of hydrology, climate change, and geography.
Download or read book 19th Conference Agricultural and Forest Meteorology and Ninth Conference Biometeorology and Aerobiology March 7 10 1989 Charleston S Carolina written by and published by . This book was released on 1989 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
