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Initial Evaluation of Profiles of Temperature, Water Vapor, and Cloud Liquid Water from a New Microwave Profiling Radiometer.

DE2001768575

Publication Date	2001
Personal Author	Liljegren, J. C.; Lesht, B. M.; Kato, S.; Clothiaux, E. E.
Page Count	6
Abstract	To measure the vertical profiles of temperature and water vapor that are essential for modeling atmospheric processes, the Atmospheric Radiation Measurement (ARM) Program of the U. S. Department of Energy launches approximately 2600 radiosondes each year from its Southern Great Plains (SGP) facilities in Oklahoma and Kansas, USA. The annual cost of this effort exceeds $500,000 in materials and labor. Despite the expense, these soundings have a coarse temporal resolution and reporting interval compared with model time steps. In contrast, the radiation measurements used for model evaluations have temporal resolutions and reporting intervals of a few minutes at most. Conversely, radiosondes have a much higher vertical spatial resolution than most models can use. Modelers generally reduce the vertical resolution of the soundings by averaging over the vertical layers of the model.
Keywords	Radiometers Water vapor Profiles Models Evaluation Meteorological instruments Microwave equipment Temperature measuring instruments Atmospheric processes Cloud liquid water
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL. Environmental Research Div.; Pennsylvania State Univ., University Park. Dept. of Meteorology.; Department of Energy, Washington, DC.; Hampton Univ., VA.
Supplemental Notes	Prepared in cooperation with Hampton Univ., VA. and Pennsylvania State Univ., University Park. Dept. of Meteorology. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200122

Initial Evaluation of Profiles of Temperature, Water Vapor, and Cloud Liquid Water from a New Microwave Profiling Radiometer.

Initial Evaluation of Profiles of Temperature, Water Vapor, and Cloud Liquid Water from a New Microwave Profiling Radiometer.
DE2001768575

Publication Date	2001
Personal Author	Liljegren, J. C.; Lesht, B. M.; Kato, S.; Clothiaux, E. E.
Page Count	6
Abstract	To measure the vertical profiles of temperature and water vapor that are essential for modeling atmospheric processes, the Atmospheric Radiation Measurement (ARM) Program of the U. S. Department of Energy launches approximately 2600 radiosondes each year from its Southern Great Plains (SGP) facilities in Oklahoma and Kansas, USA. The annual cost of this effort exceeds $500,000 in materials and labor. Despite the expense, these soundings have a coarse temporal resolution and reporting interval compared with model time steps. In contrast, the radiation measurements used for model evaluations have temporal resolutions and reporting intervals of a few minutes at most. Conversely, radiosondes have a much higher vertical spatial resolution than most models can use. Modelers generally reduce the vertical resolution of the soundings by averaging over the vertical layers of the model.
Keywords	Radiometers Water vapor Profiles Models Evaluation Meteorological instruments Microwave equipment Temperature measuring instruments Atmospheric processes Cloud liquid water
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Argonne National Lab., IL. Environmental Research Div.; Pennsylvania State Univ., University Park. Dept. of Meteorology.; Department of Energy, Washington, DC.; Hampton Univ., VA.
Supplemental Notes	Prepared in cooperation with Hampton Univ., VA. and Pennsylvania State Univ., University Park. Dept. of Meteorology. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200122