Title :
Response of passive microwave sea ice concentration algorithms to thin ice
Author :
Heygster, Georg ; Huntemann, Marcus ; Ivanova, Natalia ; Saldo, Roberto ; Pedersen, Leif Toudal
Author_Institution :
Inst. of Environ. Phys., Univ. of Bremen, Bremen, Germany
Abstract :
The influence of sea ice thickness brightness temperatures and ice concentrations retrieved from passive microwave observations is quantified, using horizontally homogeneous sea ice thickness retrievals from ESA´s SMOS sensor observations at high incidence angles. Brightness temperatures are influenced by thickness below 18 cm (89GHz) and 50 cm (1.4 GHz). Ice concentration retrievals reduced by ice thickness below 0.17 m and 0.33 m, with higher frequency algorithms being less influenced.
Keywords :
atmospheric radiation; radiometry; remote sensing; sea ice; ESA SMOS sensor observations; brightness temperatures; passive microwave observations; sea ice concentration retrieval; sea ice thickness; Arctic; Brightness temperature; Microwave frequencies; Sea ice; Sensitivity; Silicon carbide; L-band; SMOS; passive microwave; sea ice concentration retrieval; sea ice thickness;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6947266
