Title :
Classification of Baltic Sea ice with airborne microwave radiometer
Author :
Kurvonen, Lauri ; Toikka, Martti ; Hallikainen, Martti
Author_Institution :
Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
A helicopter-borne multifrequency radiometer (24, 34, 48 and 94 GHz, vertical polarization) was used to investigate the behaviour of the brightness temperature of different sea ice types in the northern Baltic Sea. The measurements were made in dry and wet conditions (air temperature above and below 0°C). The angle of incidence was 45° in all measurements. The aim of the investigation is to determine: (a) frequency dependency of the brightness temperature of different ice types, (b) the capability of the multifrequency radiometer to classify ice types, and (c) the optimum measurement frequencies for sea ice mapping
Keywords :
microwave imaging; microwave measurement; millimetre wave imaging; millimetre wave measurement; oceanographic regions; oceanographic techniques; radiometry; remote sensing; sea ice; 24 to 94 GHz; Baltic Sea; Gulf of Bothnia; SHF EHF; airborne microwave radiometer; brightness temperature; dry conditions; frequency dependency; helicopter-borne multifrequency radiometer; image classification; mapping; measurement technique; millimetric; mm wave; ocean sea surface; radiometry; remote sensing; sea ice; sea ice type; wet condition; Brightness temperature; Frequency; Ice thickness; Laboratories; Microwave radiometry; Sea ice; Sea measurements; Snow; Space technology; Temperature measurement;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399418
