Estimation of snow thickness on sea ice and lake ice using airborne snowsar data

Katriina Veijola, Marko Mäkynen, Juha Lemmetyinen, Jaan Praks

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

Abstrakti

Currently, snow thickness on sea ice is operationally estimated using microwave radiometer data. However, the estimates are hampered by the inherent coarse spatial resolution of passive microwave sensors. Successful application of SAR imagery for snow thickness estimation has the potential of providing estimates of snow thickness with much finer spatial resolution. In this study, we concentrate on assessing the capability of X- and Ku-band SAR backscattering to estimate snow thickness on sea and lake ice. Co- and cross -polarized X- and Ku-band SAR backscattering data, acquired with the ESA airborne SnowSAR sensor, are applied. The SAR data acquisition and co-incident in-situ measurements were conducted in Finland in the winter of 2012 over sea ice and lake ice test sites. Our analysis shows which frequency and polarization combinations have best sensitivity to snow thickness on sea and lake ice and in deep discussion provides plausible ways to improve the results.

AlkuperäiskieliEnglanti
OtsikkoProceedings of ESA Living Planet Symposium 2016
KustantajaEuropean Space Agency
VuosikertaSP-740
ISBN (elektroninen)9789292213053
TilaJulkaistu - 1 elokuuta 2016
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaLiving Planet Symposium - Prague, Tshekki
Kesto: 9 toukokuuta 201613 toukokuuta 2016

Conference

ConferenceLiving Planet Symposium
MaaTshekki
KaupunkiPrague
Ajanjakso09/05/201613/05/2016

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