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RISSpatially Distributed Sensible Heat Flux over a Semiarid Watershed. Part I: Use of Radiometric Surface Temperatures and a Spatially Uniform Resistance
Publisher: American Meteorological Society
Abstract: Spatially distributed radiometric surface temperatures over a semiarid watershed were computed using remotely sensed data acquired with an aircraft-based multispectral scanner during the Monsoon ?90 Large Scale Field ...
Simulating Surface Energy Fluxes and Radiometric Surface Temperatures for Two Arid Vegetation Communities Using the SHAW Model
Publisher: American Meteorological Society
Abstract: While land?atmosphere transfer models have been pursued for over 30 years, Soil?Vegetation?Atmosphere?Transfer (SVAT) models are gaining attention only recently as the need to better represent the interaction between the ...
An Evaluation of Two Models for Estimation of the Roughness Height for Heat Transfer between the Land Surface and the Atmosphere
Publisher: American Meteorological Society
Abstract: Roughness height for heat transfer is a crucial parameter in estimation of heat transfer between the land surface and the atmosphere. Although many empirical formulations have been proposed over the past few decades, the ...
Single- and Dual-Source Modeling of Surface Energy Fluxes with Radiometric Surface Temperature
Publisher: American Meteorological Society
Abstract: Single- and dual-source models of the surface energy transfer across the soil-vegetation-atmosphere interface were used in conjunction with remotely sensed surface temperature for computing the surface energy balance over ...
Determining Meaningful Differences for SMACEX Eddy Covariance Measurements
Publisher: American Meteorological Society
Abstract: Two eddy covariance instrument comparison studies were conducted before and after the Soil Moisture?Atmosphere Coupling Experiment (SMACEX) field campaign to 1) determine if observations from multiple sensors were equivalent ...
Sensible Heat Flux-Radiometric Surface Temperature Relationship for Eight Semiarid Areas
Publisher: American Meteorological Society
Abstract: Measurements of sensible heat flux, radiometric surface temperature, air temperature, and wind speed made at eight semiarid rangeland sites were used to investigate the sensible heat flux-aerodynamic resistance relationship. ...
Relationships between Evaporative Fraction and Remotely Sensed Vegetation Index and Microwave Brightness Temperature for Semiarid Rangelands
Publisher: American Meteorological Society
Abstract: Measurements of the microwave brightness temperature (TB) with the Pushbroom Microwave Radiometer (PBMR) over the Walnut Gulch Experimental Watershed were made on selected days during the MONSOON 90 field campaign. The ...
Lidar Measurement of Boundary Layer Evolution to Determine Sensible Heat Fluxes
Publisher: American Meteorological Society
Abstract: The Soil Moisture?Atmosphere Coupling Experiment (SMACEX) was conducted in the Walnut Creek watershed near Ames, Iowa, over the period from 15 June to 11 July 2002. A main focus of SMACEX is the investigation of the ...
Tower and Aircraft Eddy Covariance Measurements of Water Vapor, Energy, and Carbon Dioxide Fluxes during SMACEX
Publisher: American Meteorological Society
Abstract: A network of eddy covariance (EC) and micrometeorological flux (METFLUX) stations over corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] canopies was established as part of the Soil Moisture?Atmosphere Coupling ...
An Interdisciplinary Field Study of the Energy and Water Fluxes in the Atmospheric-Biosphere System over Semiarid Rangelands: Description and Some Preliminary Results
Publisher: American Meteorological Society
Abstract: Arid and semiarid rangelands comprise a significant portion of the earth's land surface. Yet little is known about the effects of temporal and spatial changes in surface soil moisture on the hydrologic cycle, energy balance, ...