Remote Sensing of Atmospheric Temperature Profiles with the Nimbus 5 Microwave Spectrometer

This article discusses remote sensing of atmospheric temperatures with the NEMS microwave spectrometer on the Nimbus-5 satellite, and the accuracy with which atmospheric temperatures can be determined by NEMS. The sensitivity of the NEMS instrument permits measurement of temperature profiles having...

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Published in:Journal of the atmospheric sciences 1975-10, Vol.32 (10), p.1953-1969
Main Authors: Waters, J. W., Kunzi, K. F., Pettyjohn, R. L., Poon, R. K. L., Staelin, D. H.
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container_end_page 1969
container_issue 10
container_start_page 1953
container_title Journal of the atmospheric sciences
container_volume 32
creator Waters, J. W.
Kunzi, K. F.
Pettyjohn, R. L.
Poon, R. K. L.
Staelin, D. H.
description This article discusses remote sensing of atmospheric temperatures with the NEMS microwave spectrometer on the Nimbus-5 satellite, and the accuracy with which atmospheric temperatures can be determined by NEMS. The sensitivity of the NEMS instrument permits measurement of temperature profiles having vertical resolution of the respective NEMS weighting functions ( similar to 10 km) with an r.m.s. accuracy of a few tenths of a degree Kelvin for a 16-sec integration time. The accuracy of NEMS in estimating atmospheric temperatures at the discrete levels ( similar to 2 km vertical resolution in the lower troposphere) used in the operational numerical model of the National Meteorological Center (NMC) is similar to 2 K r.m.s., as determined by comparing NEMS results with ground truth data obtained from the NMC operational analysis and from coincident radiosondes. These accuracies are consistent with the theoretical accuracies expected for NEMS.
doi_str_mv 10.1175/1520-0469(1975)032<1953:RSOATP>2.0.CO;2
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title Remote Sensing of Atmospheric Temperature Profiles with the Nimbus 5 Microwave Spectrometer
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