Validation of five passive microwave remotely sensed soil moisture products over the Qinghai-Tibet Plateau, China

Jin Liu; Linna Chai; Zheng Lu; Yuquan Qu; Jian Wang; Shiqi Yang

doi:10.1109/IGARSS.2019.8899873

Validation of five passive microwave remotely sensed soil moisture products over the Qinghai-Tibet Plateau, China

Jin Liu, Linna Chai, Zheng Lu, Yuquan Qu, Jian Wang, Shiqi Yang

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

Abstract

High-quality and long-term soil moisture (SM) products are crucial for studying the climate change over the Qinghai- Tibet Plateau. Five passive microwave remotely sensed SM products were compared against in-situ SM observations from five networks, i.e., Heihe, Naqu, Pali, Maqu, and Ngari. Five SM products include the Soil Moisture Active Passive (SMAP), the Soil Moisture and Ocean Salinity (SMOS), the Fengyun-3B (FY3B), the Land Parameter Retrieval Model (LPRM), and the Japan Aerospace Exploration Agency (JAXA). The results show that SMAP performs better than other four products in every network, but it has a slightly underestimate and poor dynamic range in Heihe network, which mainly due to the significant heterogeneity of topography and land cover. Moreover, the underestimate for JAXA, the overestimate for LPRM, the noisy temporal variations for SMOS, good dynamic changes for FY3B but lacks perfect absolute accuracy, all of these can be reflected from the validation results.

Original language	English
Title of host publication	International Geoscience and Remote Sensing Symposium (IGARSS)
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	6182-6185
DOIs	https://doi.org/10.1109/IGARSS.2019.8899873
Publication status	Published - 2019
Externally published	Yes
Event	39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Yokohama, Japan Duration: 28 Jul 2019 → 2 Aug 2019

Conference

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

Funding

The work was supported by the National Natural Science Foundation of China (41531174, 41671337, 41871228), and the State Key Laboratory of Earth Surface Processes and Resource Ecology (2017-FX-04). In addition, we thank the Institute of Tibetan Plateau Research, CAS, and the Institute of Northwest Ecological Environment and Resources Research, CAS, for providing in-situ datasets.

Funders	Funder number
National Natural Science Foundation of China	41671337, 41871228, 41531174
State Key Laboratory of Earth Surface Processes and Resource Ecology	2017-FX-04

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10.1109/IGARSS.2019.8899873

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@inproceedings{a897e36633284604a22ddcdc2be84513,

title = "Validation of five passive microwave remotely sensed soil moisture products over the Qinghai-Tibet Plateau, China",

abstract = "High-quality and long-term soil moisture (SM) products are crucial for studying the climate change over the Qinghai- Tibet Plateau. Five passive microwave remotely sensed SM products were compared against in-situ SM observations from five networks, i.e., Heihe, Naqu, Pali, Maqu, and Ngari. Five SM products include the Soil Moisture Active Passive (SMAP), the Soil Moisture and Ocean Salinity (SMOS), the Fengyun-3B (FY3B), the Land Parameter Retrieval Model (LPRM), and the Japan Aerospace Exploration Agency (JAXA). The results show that SMAP performs better than other four products in every network, but it has a slightly underestimate and poor dynamic range in Heihe network, which mainly due to the significant heterogeneity of topography and land cover. Moreover, the underestimate for JAXA, the overestimate for LPRM, the noisy temporal variations for SMOS, good dynamic changes for FY3B but lacks perfect absolute accuracy, all of these can be reflected from the validation results.",

author = "Jin Liu and Linna Chai and Zheng Lu and Yuquan Qu and Jian Wang and Shiqi Yang",

year = "2019",

doi = "10.1109/IGARSS.2019.8899873",

language = "English",

pages = "6182--6185",

booktitle = "International Geoscience and Remote Sensing Symposium (IGARSS)",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 ; Conference date: 28-07-2019 Through 02-08-2019",

}

Liu, J, Chai, L, Lu, Z, Qu, Y, Wang, J & Yang, S 2019, Validation of five passive microwave remotely sensed soil moisture products over the Qinghai-Tibet Plateau, China. in International Geoscience and Remote Sensing Symposium (IGARSS). Institute of Electrical and Electronics Engineers Inc., pp. 6182-6185, 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019, Yokohama, Japan, 28/07/19. https://doi.org/10.1109/IGARSS.2019.8899873

Validation of five passive microwave remotely sensed soil moisture products over the Qinghai-Tibet Plateau, China. / Liu, Jin; Chai, Linna; Lu, Zheng et al.
International Geoscience and Remote Sensing Symposium (IGARSS). Institute of Electrical and Electronics Engineers Inc., 2019. p. 6182-6185.

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

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AU - Yang, Shiqi

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Validation of five passive microwave remotely sensed soil moisture products over the Qinghai-Tibet Plateau, China

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