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RISConcerning the Measurement and Magnitude of Heat, Water Vapor, and Carbon Dioxide Exchange from a Semiarid Grassland
Publisher: American Meteorological Society
Abstract: Grassland environments constitute approximately 40% of the earth?s vegetated surface, and they play a key role in a number of processes linking the land surface with the atmosphere. To investigate these linkages, a variety ...
Comparison of Observed 10-m Wind Speeds to Those Based on Monin–Obukhov Similarity Theory Using IHOP_2002 Aircraft and Surface Data
Publisher: American Meteorological Society
Abstract: Comparisons of 10-m above ground level (AGL) wind speeds from numerical weather prediction (NWP) models to point observations consistently show that model daytime wind speeds are slow compared to observations, even after ...
Evaluation of the Noah Land Surface Model Using Data from a Fair-Weather IHOP_2002 Day with Heterogeneous Surface Fluxes
Publisher: American Meteorological Society
Abstract: Sources of differences between observations and simulations for a case study using the Noah land surface model?based High-Resolution Land Data Assimilation System (HRLDAS) are examined for sensible and latent heat fluxes ...
Variability in the Environmental Factors Driving Evapotranspiration from a Grazed Rangeland during Severe Drought Conditions
Publisher: American Meteorological Society
Abstract: Nearly one-half of the earth?s terrestrial surface is susceptible to drought, which can have significant social, economic, and environmental impacts. Therefore, it is important to develop better descriptions and models of ...
Assessment of Despiking Methods for Turbulence Data in Micrometeorology
Publisher: American Meteorological Society
Abstract: he computation of turbulent fluxes of heat, momentum, and greenhouse gases requires measurements taken at high sampling frequencies. An important step in this process involves the detection and removal of sudden, short-lived ...
Evaluation of a Two-Source Snow–Vegetation Energy Balance Model for Estimating Surface Energy Fluxes in a Rangeland Ecosystem
Publisher: American Meteorological Society
Abstract: he utility of a snow?vegetation energy balance model for estimating surface energy fluxes is evaluated with field measurements at two sites in a rangeland ecosystem in southwestern Idaho during the winter of 2007: one site ...
Influence of Land Cover and Soil Moisture on the Horizontal Distribution of Sensible and Latent Heat Fluxes in Southeast Kansas during IHOP_2002 and CASES-97
Publisher: American Meteorological Society
Abstract: Analyses of daytime fair-weather aircraft and surface-flux tower data from the May?June 2002 International H2O Project (IHOP_2002) and the April?May 1997 Cooperative Atmosphere Surface Exchange Study (CASES-97) are used ...
NCAR/CU Surface, Soil, and Vegetation Observations during the International H2O Project 2002 Field Campaign
Publisher: American Meteorological Society
Abstract: The May?June 2002 International H2O Project was held in the U.S. Southern Great Plains to determine ways that moisture data could be collected and utilized in numerical forecast models most effectively. We describe the ...
Estimation of the Minimum Canopy Resistance for Croplands and Grasslands Using Data from the 2002 International H2O Project
Publisher: American Meteorological Society
Abstract: Vegetated surfaces, such as grasslands and croplands, constitute a significant portion of the earth?s surface and play an important role in land?atmosphere exchange processes. This study focuses on one important parameter ...
Intercomparison of Nine Micrometeorological Stations during the BEAREX08 Field Campaign
Publisher: American Meteorological Society
Abstract: and?atmosphere interactions play a critical role in regulating numerous meteorological, hydrological, and environmental processes. Investigating these processes often requires multiple measurement sites representing a range ...