Multi-Sensor Sar Data for Improved Modeling of Microwave Brightness Temperature over Boreal Forest

Oleg Antropov*, Jaakko Seppänen, Thomas Jagdhuber, Hallikainen Martti, Jaan Praks

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

Abstrakti

Here, we investigate multiple ways of assimilating synthetic aperture radar (SAR) data to L-band Microwave Emission of the Biosphere (L-MEB) model to enhance the model performance over forested areas in the boreal zone. Land C-band satellite SAR backscatter data, X-band interferometric SAR coherence, as well as auxiliary data layers from forest authorities are used as a proxy in calculating the forest transmissivity, instead of traditionally used leaf area index (LAI) parameter.

Our earlier experiments have shown, that when particularly ALOS PALSAR (L-band) and multitemporal composite Sentinel-1 (C-band) data were applied, an improved agreement was achieved between the measured and simulated brightness temperatures (TBs) over forests. Here, we extend our analysis and examine data acquired by ALOS PALSAR, ESA Sentinel-1, and TanDEM-X mission of DLR, as well as several other auxiliary datasets on forest parameters. Our proposed model based approach indicates the potential of an SAR-based estimation of forest volume transmissivity and represents a viable way of active-passive microwave satellite data fusion and incorporating readily available reference data.

AlkuperäiskieliEnglanti
OtsikkoIGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium
KustantajaIEEE
Sivut361-364
Sivumäärä4
ISBN (elektroninen)978-1-5386-7150-4
DOI - pysyväislinkit
TilaJulkaistu - 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaInternational Geoscience and Remote Sensing Symposium - Valencia, Espanja
Kesto: 22 heinäkuuta 201827 heinäkuuta 2018
Konferenssinumero: 38
https://www.igarss2018.org/

Julkaisusarja

NimiIEEE International Symposium on Geoscience and Remote Sensing IGARSS
KustantajaIEEE
ISSN (painettu)2153-6996
ISSN (elektroninen)2153-7003

Conference

ConferenceInternational Geoscience and Remote Sensing Symposium
LyhennettäIGARSS
MaaEspanja
KaupunkiValencia
Ajanjakso22/07/201827/07/2018
www-osoite

Siteeraa tätä

Antropov, O., Seppänen, J., Jagdhuber, T., Martti, H., & Praks, J. (2018). Multi-Sensor Sar Data for Improved Modeling of Microwave Brightness Temperature over Boreal Forest. teoksessa IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium (Sivut 361-364). (IEEE International Symposium on Geoscience and Remote Sensing IGARSS). IEEE. https://doi.org/10.1109/IGARSS.2018.8517626