Title :
Combined active and passive measurements of snow, bare and vegetated soils microwave reflective and emissive characteristics by Ka-band, combined scatterometer-radiometer system
Author :
Arakelyan, Arsen ; Grigoryan, Melanya ; Hambaryan, Astghik ; Arakelyan, Arsen
Author_Institution :
ECOSERV Remote Obs. Centre Co.Ltd., Yerevan, Armenia
Abstract :
In this paper the results spatio-temporally collocated measurements of bare, dry vegetated and ash covered soils microwave reflective (radar backscattering coefficient) and emissive (brightness temperature) characteristics angular dependences at ~37GHz are presented. During the experiment with dry vegetated soil the observed area was set ablaze and microwave active and passive measurements at 300 incidence angle were continued for smock, fire and ash situations. For these measurements Ka-band, polarimetric, combined scatterometric-radiometric system was used, set on a mobile buggy moving along the measuring platform. Structures, operational features and the main technical characteristics of the used system are presented too. The paper has an aim as well to attract attention of interested researchers and to invite them to perform their own or joint researches using available devices and facilities.
Keywords :
backscatter; brightness; microwave measurement; radiometers; snow; soil; terrain mapping; vegetation; Ka-band microwave emissive characteristics; Ka-band microwave reflective characteristics; active measurements; ash covered soils; bare soil; brightness temperature; passive measurements; radar backscattering coefficient; scatterometer-radiometer system; snow; vegetated soils; Calibration; Microwave measurements; Microwave radiometry; Soil measurements; Soil moisture; Temperature measurement;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5652068