Ground-based microwave radiometer measurements and radiosonde comparisons during the WVIOP2000 field experiment

Author

Cimini, D. ; Westwater, E.R. ; Han, Y. ; Keihm, S.

Author_Institution

CETEMPS, L´´Aquila Univ., Italy

Volume

1

fYear

2002

fDate

2002

Firstpage

57

Abstract

We discuss the performances of a set of four microwave radiometers during a field experiment, with an emphasis on calibration and achievable accuracy. A comparison between two alternative tip curve calibration procedures has been carried out. Additional results from reference load cryogenic tests and from brightness temperature cross-comparison are shown. Also, we compare radiometric measurements with radiosonde observations and we demonstrate the improvements achieved by the new Vaisala sensors to reduce or eliminate the "dry bias" problem.

Keywords

atmospheric humidity; atmospheric measuring apparatus; atmospheric techniques; humidity measurement; radiometers; radiometry; remote sensing; 20 to 32 GHz; Oklahoma; USA; United States; Vaisala sensor; WVIOP; WVIOP2000 field experiment; accuracy; atmosphere; calibration; ceilometer; curve calibration procedure; dry bias problem; ground based method; humidity; instrument; measurement technique; microwave radiometer; microwave radiometry; performance; remote sensing; troposphere; water vapor; water vapour; Atmospheric measurements; Brightness temperature; Calibration; Microwave measurements; Microwave radiometry; Microwave technology; NASA; Propulsion; Space technology; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International

Print_ISBN

0-7803-7536-X

Type

conf

DOI

10.1109/IGARSS.2002.1024940

Filename

1024940