Analysis of Snow Coherence Conservation for SWE Retrieval at L-, S-, C-and X-Bands

J. Jorge Ruiz, J. Lemmetyinen, A. Kontu, R. Tarvainen, J. Pulliainen, R. Vehmas, J. Praks

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

2 Sitaatiot (Scopus)

Abstrakti

Accurate measurement of Snow Water Equivalent (SWE) from remote sensors is still an on-going topic with many open challenges. Interferometric Synthetic Aperture Radars (InSAR) offers the possibility of retrieving SWE changes between acquisitions by exploiting the relation between the interferometric phase, the snow depth and the water contained on it. However, it is susceptible to estimation errors due to loss of coherence. Sources of decorrelation in snow have not been exhaustively investigated. Here we present the results from the SWE retrieval during both the 2019–2020 and 2020–2021 winters and an analysis of various environmental parameters on the snow coherence using SodSAR (Sodankylä SAR). SodSAR is a 1-10GHz tower-based fully polarimetric SAR with InSAR capabilities operating in northern Finland. Acquisitions were made every 12 hours for the 2019–2020 winter and every 6 hours for the 2020–2021 winter. In-situ instruments are used for validation and comparison.
AlkuperäiskieliEnglanti
Otsikko2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
KustantajaIEEE
Sivut860-863
Sivumäärä4
ISBN (painettu)978-1-6654-4762-1
DOI - pysyväislinkit
TilaJulkaistu - 12 lokak. 2021
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE International Geoscience and Remote Sensing Symposium - Virtual, Online, Brussels, Belgia
Kesto: 11 heinäk. 202116 heinäk. 2021

Julkaisusarja

NimiIEEE International Geoscience and Remote Sensing Symposium proceedings
ISSN (elektroninen)2153-7003

Conference

ConferenceIEEE International Geoscience and Remote Sensing Symposium
LyhennettäIGARSS
Maa/AlueBelgia
KaupunkiBrussels
Ajanjakso11/07/202116/07/2021

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