Title :
Snow measurements using the airborne HUTRAD system
Author :
Hallikainen, Martti ; Rautiainen, Kimmo ; Koskinen, Jarkko
Author_Institution :
Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
The HUTRAD microwave radiometer system (Helsinki University of Technology RADiometer) was used to collect airborne 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. The non-scanning subsystem measures the emission at 6.8, 10.65, 18.7, 23.8, 36.5, and 94 GHz, simultaneously at vertical and horizontal polarization, using a look angle of 50° off nadir. The imaging subsystem operates at 93 GHz, vertical and horizontal polarization. Visual recording of the target was provided by a video camera. The measurement program was started in the winter of 1998 and it includes data collection under dry snow, wet snow, and snow-free conditions
Keywords :
hydrological techniques; microwave imaging; radiometry; remote sensing; snow; HUTRAD microwave radiometer system; Helsinki University of Technology RADiometer; Tuusula test site; airborne HUTRAD system; data collection; dry snow; forest types; horizontal polarization; imaging subsystem; land-use; look angle; microwave emission; nonscanning subsystem; snow measurements; snow-covered terrain; snow-free conditions; southern Finland; vertical polarization; visual recording; wet snow; Calibration; Frequency; Laboratories; Microwave radiometry; Microwave technology; Polarization; Snow; Space technology; Telephony; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.691554
