Microwave radiometer response to snow in the 6.8 to 94 GHz range for various land-cover categories

Author

Hallikainen, Martti ; Tigerstedt, Karl ; Jääskeläinen, Ville S. ; Pullianinen, J. ; Koskinen, Jarkko

Author_Institution

Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland

Volume

3

fYear

1999

fDate

1999

Firstpage

1786

Abstract

We used our airborne HUTRAD microwave radiometer system (Helsinki University of Technology Radiometer) to collect data on microwave emission from snow-covered terrain, including a variety of forest types and land-use categories in the Tuusula test site, southern Finland, and the Kuusamo test site, northern Finland. The data include brightness temperatures at 6.8, 10.65, 18.7, 23.8, 36.5, and 94 GHz for vertical and horizontal polarization, using a look angle of 50° off-nadir. In addition to snow ground truth data, the results were compared with land-cover, especially forest information in order to determine the effect of forests on the brightness temperature of snow-covered terrain

Keywords

electromagnetic wave polarisation; radiometry; remote sensing; snow; vegetation mapping; 6.8 to 94 GHz; Finland; Helsinki University of Technology Radiometer; Kuusamo test site; Tuusula test site; airborne HUTRAD microwave radiometer system; brightness temperatures; forest types; horizontal polarization; land-cover categories; microwave emission; microwave radiometer response; snow; snow-covered terrain; vertical polarization; Brightness temperature; Laboratories; Land surface temperature; Microwave radiometry; Microwave technology; Polarization; Snow; Space technology; System testing; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International

Conference_Location

Hamburg

Print_ISBN

0-7803-5207-6

Type

conf

DOI

10.1109/IGARSS.1999.772095

Filename

772095