Response of passive microwave sea ice concentration algorithms to thin ice

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 in...

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Bibliographic Details
Published in:2014 IEEE Geoscience and Remote Sensing Symposium
Main Authors: Heygster, Georg, Huntemann, Marcus, Ivanova, Natalia, Saldo, Roberto, Pedersen, Leif Toudal
Format: Article in Journal/Newspaper
Language:English
Published: IEEE 2014
Subjects:
atmospheric radiation
radiometry
remote sensing
sea ice
Geoscience
Arctic
Brightness temperature
brightness temperatures
ESA SMOS sensor observations
L-band
Microwave frequencies
passive microwave
passive microwave observations
sea ice concentration retrieval
sea ice thickness
Sensitivity
Silicon carbide
SMOS
Sea ice
Online Access:https://orbit.dtu.dk/en/publications/21d31046-c3e4-4e22-992c-5ad040422fcd
https://doi.org/10.1109/IGARSS.2014.6947266
Description
Summary: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.

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