X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed

Sayantan Majumdar; Praveen K. Thakur; Ling  Chang; Shashi Kumar

doi:10.1109/IGARSS.2019.8898884

X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed

Sayantan Majumdar, Praveen K. Thakur, Ling Chang, Shashi Kumar

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

4 Citations (Scopus)

80 Downloads (Pure)

Abstract

The estimation of fresh snow depth (FSD) using X-band synthetic aperture radar (SAR) is feasible but challenging depending on the hydrometeorological conditions and data availability. In this study, the FSD is computed for the Beas river watershed in the northwestern Himalayas near Manali, India. It incorporates the recent copolar phase difference (CPD) based FSD inversion model. Moreover, the TerraSAR-X and TANDEM-X bistatic data acquired in January 2016 are used as inputs to the model along with the snow density measurements at the Dhundi ground station. Additionally, apart from applying layover and forest masks, the potential uncertainty sources in the complex mountainous terrains are identified using the H-A-α decomposition and unsupervised Wishart classification techniques. Furthermore, due to the limited number of weather stations, the results are validated using a 3×3 neighbourhood window surrounding the Dhundi site. Also, the effects of different FSD ensemble window sizes are tested for performing sensitivity analysis.

Original language	English
Title of host publication	2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019
Subtitle of host publication	Proceedings
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	4102-4105
Number of pages	4
ISBN (Electronic)	978-1-5386-9154-0, 978-1-5386-9153-3 (USB)
ISBN (Print)	978-1-5386-9155-7
DOIs	https://doi.org/10.1109/IGARSS.2019.8898884
Publication status	Published - Jul 2019
Event	39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Yokohama, Japan Duration: 28 Jul 2019 → 2 Aug 2019 Conference number: 39

Publication series

Name	Proceedings IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Publisher	IEEE
Volume	2019
ISSN (Print)	2153-6996
ISSN (Electronic)	2153-7003

Conference

Conference	39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019
Abbreviated title	IGARSS 2019
Country/Territory	Japan
City	Yokohama
Period	28/07/19 → 2/08/19

Keywords

22/3 OA procedure

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/IGARSS.2019.8898884

ArticleFinal published version, 4.12 MBLicence: Taverne

Cite this

Majumdar, S., Thakur, P. K., Chang, L., & Kumar, S. (2019). X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed. In 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019: Proceedings (pp. 4102-4105). (Proceedings IEEE International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2019). IEEE. https://doi.org/10.1109/IGARSS.2019.8898884

Majumdar, Sayantan ; Thakur, Praveen K. ; Chang, Ling et al. / X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed. 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019: Proceedings. Piscataway, NJ : IEEE, 2019. pp. 4102-4105 (Proceedings IEEE International Geoscience and Remote Sensing Symposium (IGARSS)).

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title = "X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed",

abstract = "The estimation of fresh snow depth (FSD) using X-band synthetic aperture radar (SAR) is feasible but challenging depending on the hydrometeorological conditions and data availability. In this study, the FSD is computed for the Beas river watershed in the northwestern Himalayas near Manali, India. It incorporates the recent copolar phase difference (CPD) based FSD inversion model. Moreover, the TerraSAR-X and TANDEM-X bistatic data acquired in January 2016 are used as inputs to the model along with the snow density measurements at the Dhundi ground station. Additionally, apart from applying layover and forest masks, the potential uncertainty sources in the complex mountainous terrains are identified using the H-A-α decomposition and unsupervised Wishart classification techniques. Furthermore, due to the limited number of weather stations, the results are validated using a 3×3 neighbourhood window surrounding the Dhundi site. Also, the effects of different FSD ensemble window sizes are tested for performing sensitivity analysis.",

keywords = "22/3 OA procedure",

author = "Sayantan Majumdar and Thakur, {Praveen K.} and Ling Chang and Shashi Kumar",

year = "2019",

month = jul,

doi = "10.1109/IGARSS.2019.8898884",

language = "English",

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Majumdar, S, Thakur, PK, Chang, L & Kumar, S 2019, X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed. in 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019: Proceedings. Proceedings IEEE International Geoscience and Remote Sensing Symposium (IGARSS), vol. 2019, IEEE, Piscataway, NJ, pp. 4102-4105, 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019, Yokohama, Japan, 28/07/19. https://doi.org/10.1109/IGARSS.2019.8898884

X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed. / Majumdar, Sayantan; Thakur, Praveen K.; Chang, Ling et al.
2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019: Proceedings. Piscataway, NJ: IEEE, 2019. p. 4102-4105 (Proceedings IEEE International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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N2 - The estimation of fresh snow depth (FSD) using X-band synthetic aperture radar (SAR) is feasible but challenging depending on the hydrometeorological conditions and data availability. In this study, the FSD is computed for the Beas river watershed in the northwestern Himalayas near Manali, India. It incorporates the recent copolar phase difference (CPD) based FSD inversion model. Moreover, the TerraSAR-X and TANDEM-X bistatic data acquired in January 2016 are used as inputs to the model along with the snow density measurements at the Dhundi ground station. Additionally, apart from applying layover and forest masks, the potential uncertainty sources in the complex mountainous terrains are identified using the H-A-α decomposition and unsupervised Wishart classification techniques. Furthermore, due to the limited number of weather stations, the results are validated using a 3×3 neighbourhood window surrounding the Dhundi site. Also, the effects of different FSD ensemble window sizes are tested for performing sensitivity analysis.

AB - The estimation of fresh snow depth (FSD) using X-band synthetic aperture radar (SAR) is feasible but challenging depending on the hydrometeorological conditions and data availability. In this study, the FSD is computed for the Beas river watershed in the northwestern Himalayas near Manali, India. It incorporates the recent copolar phase difference (CPD) based FSD inversion model. Moreover, the TerraSAR-X and TANDEM-X bistatic data acquired in January 2016 are used as inputs to the model along with the snow density measurements at the Dhundi ground station. Additionally, apart from applying layover and forest masks, the potential uncertainty sources in the complex mountainous terrains are identified using the H-A-α decomposition and unsupervised Wishart classification techniques. Furthermore, due to the limited number of weather stations, the results are validated using a 3×3 neighbourhood window surrounding the Dhundi site. Also, the effects of different FSD ensemble window sizes are tested for performing sensitivity analysis.

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ER -

Majumdar S, Thakur PK, Chang L, Kumar S. X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed. In 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019: Proceedings. Piscataway, NJ: IEEE. 2019. p. 4102-4105. (Proceedings IEEE International Geoscience and Remote Sensing Symposium (IGARSS)). doi: 10.1109/IGARSS.2019.8898884

X-band polarimetric sar copolar phase difference for fresh snow depth estimation in the Northwestern Himalayan watershed

Abstract

Publication series

Conference

Keywords

UN SDGs

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Cite this