Sensitivity Analysis of Microwave Brightness Temperature to Snow Depth on Sea Ice in the Arctic
- Resource Type
- Conference
- Authors
- Li, Lele; Fan, Yanfei; Chen, Haihua; Zhan, Lili
- Source
- IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, IGARSS 2022 - 2022 IEEE International. :3951-3954 Jul, 2022
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Power, Energy and Industry Applications
Signal Processing and Analysis
Microwave integrated circuits
Electromagnetic heating
Atmospheric modeling
Snow
Microwave theory and techniques
Microwave amplifiers
Microwave radiometry
Snow depth
Brightness temperature
MWMOD
MWRI
The Arctic
- Language
- ISSN
- 2153-7003
Snow on sea ice is a sensitive indicator of climate change and is considered a key reason for amplified warming in the Arctic. The passive microwave remote sensing is an important method for Snow Depth (SD) observation. Therefore, understanding the influence of SD on observed brightness temperature (TB) is necessary for SD retrieval using microwave radiometer. Taking the FengYun-3D/Microwave Radiation Imager (FY3D/MWRI) as an example, this paper simulates the influence of SD on observed TBs from different channels using the MicroWave MODel (MWMOD) in the Arctic. Several conditions are considered for both first year ice (FYI) and multi-year ice (MYI), including various sea ice concentrations and water vapor contents in the atmosphere. The correlation between SD and TB is also briefly analyzed. It provides a theoretical reference for the retrieval of SD using microwave radiometer.