Potential of GNSS Reflectometry for Freeze-Thaw Monitoring: a Study of Techdemosat-1 Data

The monitoring of the freeze/thaw dynamic of high-latitude Earth regions is of paramount importance for the study of the carbon cycle and the climate changes. Current approaches essentially rely on the use of active and passive microwave remote sensing, while limited work has been dedicated to study...

Full description

Saved in:
Bibliographic Details
Main Authors: Comite, Davide, Dente, Laura, Cenci, Luca, Guerriero, Leila, Colliander, Andreas, Pierdicca, Nazzareno
Format: Conference Proceeding
Language:English
Subjects:
bistatic radars
Climate change
Freeze-thaw
GNSS reflectometry (GNSS-R)
Monitoring
Reflection
Reflectivity
Satellites
Sensitivity
Spaceborne radar
Spatial resolution
TechDemoSat-1 mission
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The monitoring of the freeze/thaw dynamic of high-latitude Earth regions is of paramount importance for the study of the carbon cycle and the climate changes. Current approaches essentially rely on the use of active and passive microwave remote sensing, while limited work has been dedicated to study the potential of the Global Navigation Satellite System Reflectometry technique based on spaceborne platforms. In this contribution, reflectivity values derived from the TechDemoSat-1 data have been collected and elaborated, to be compared against the SMAP freeze/thaw product. The proposed analysis indicates a significant seasonal cycle of freeze/thaw state in the calibrated reflectivity, thus opening new perspectives for the bistatic L-band high-resolution satellite monitoring of the freeze/thaw state.
ISSN:2153-7003
DOI:10.1109/IGARSS39084.2020.9324396