DEVELOPMENT AND VALIDATION OF THE SMOS-IC VERSION 2 (V2) SOIL MOISTURE PRODUCT

被引：13
作者：
Li, Xiaojun [1 ]
Wigneron, J-P [1 ]
Frappart, F. [1 ,2 ]
Fan, Lei [1 ,3 ]
Wang, Mengjia [1 ,4 ]
Liu, Xiangzhuo [1 ]
Al-Yaari, A. [1 ,5 ]
Moisy, C. [1 ]
机构：
[1] INRAE, UMR1391 ISPA, Villenave Dornon, France
[2] Lab Etud Geophys & Oceanog Spatiales LEGOS, Toulouse, France
[3] Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing, Peoples R China
[4] Beijing Normal Univ, Fac Geog Sci, State Key Lab Remote Sensing Sci, Beijing, Peoples R China
[5] Sorbonne Univ, UMR 7619, METIS, Case 105,4 Pl Jussieu, Paris, France
来源：
IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2020年
关键词：
SMOS-IC; L-band; SMOS; vegetation optical depth; soil moisture; validation; L-BAND; MICROWAVE EMISSION; CALIBRATION; MODEL;
D O I：
10.1109/IGARSS39084.2020.9323324
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Since the first version of the SMOS-IC retrieval product was released in 2017, its soil moisture (SM) and L-band Vegetation Optical depth (VOD) retrievals have proven to be a very interesting alternative product for the SMOS mission. This product relies on a two-parameter inversion of the L-MEB model (L-band Microwave Emission of the Biosphere) which is independent of auxiliary data, a key feature making it well-suited for application in hydrology, agriculture, climate, and carbon cycle. This paper describes the development and validation of the most recent SMOS-IC version (V2) soil moisture product. Compared with the previous version (V105), a new constraint was applied on VOD in the cost function which is minimized in the retrieval process. Soil moisture retrievals from SMOS-IC V2 & V105 were inter-compared against the "European Centre for Medium-Range Weather Forecasts" (ECMWF) modelled SM and the "International Soil Moisture Network" (ISMN) in-situ measurements during 2011-2017 over France. It was found that the average retrieval uncertainty of the new version product was lower than that of the old version, particularly when vegetation density increased. The new version of the SMOS-IC soil moisture product will be made available to the public through the CATDS (Centre Aval de Traitements des Donnees SMOS) website.
引用
收藏
页码：4434 / 4437
页数：4
相关论文
共 20 条
[1]   Assessment and inter-comparison of recently developed/reprocessed microwave satellite soil moisture products using ISMN ground-based measurements [J].
Al-Yaari, A. ;
Wigneron, J. -P. ;
Dorigo, W. ;
Colliander, A. ;
Pellarin, T. ;
Hahn, S. ;
Mialon, A. ;
Richaume, P. ;
Fernandez-Moran, R. ;
Fan, L. ;
Kerr, Y. H. ;
De Lannoy, G. .
REMOTE SENSING OF ENVIRONMENT, 2019, 224 :289-303
[2]   Evaluation of Two SMAP Soil Moisture Retrievals Using Modeled- and Ground-Based Measurements [J].
Bai, Li ;
Lv, Xin ;
Li, Xiaojun .
REMOTE SENSING, 2019, 11 (24)
[3]   Satellite passive microwaves reveal recent climate-induced carbon losses in African drylands [J].
Brandt, Martin ;
Wigneron, Jean-Pierre ;
Chave, Jerome ;
Tagesson, Torbern ;
Penuelas, Josep ;
Ciais, Philippe ;
Rasmussen, Kjeld ;
Tian, Feng ;
Mbow, Cheikh ;
Al-Yaari, Amen ;
Rodriguez-Fernandez, Nemesio ;
Schurgers, Guy ;
Zhang, Wenmin ;
Chang, Jinfeng ;
Kerr, Yann ;
Verger, Aleixandre ;
Tucker, Compton ;
Mialon, Arnaud ;
Rasmussen, Laura Vang ;
Fan, Lei ;
Fensholt, Rasmus .
NATURE ECOLOGY & EVOLUTION, 2018, 2 (05) :827-835
[4]   In situ soil moisture observations for the CAL/VAL of SMOS: the SMOSMANIA network [J].
Calvet, Jean-Christophe ;
Fritz, Noureddine ;
Froissard, Francis ;
Suquia, David ;
Petitpa, Alain ;
Piguet, Bruno .
IGARSS: 2007 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-12: SENSING AND UNDERSTANDING OUR PLANET, 2007, :1196-1199
[5]   Satellite-observed pantropical carbon dynamics [J].
Fan, Lei ;
Wigneron, Jean-Pierre ;
Ciais, Philippe ;
Chave, Jerome ;
Brandt, Martin ;
Fensholt, Rasmus ;
Saatchi, Sassan S. ;
Bastos, Ana ;
Al-Yaari, Amen ;
Hufkens, Koen ;
Qin, Yuanwei ;
Xiao, Xiangming ;
Chen, Chi ;
Myneni, Ranga B. ;
Fernandez-Moran, Roberto ;
Mialon, Arnaud ;
Rodriguez-Fernandez, N. J. ;
Kerr, Yann ;
Tian, Feng ;
Penuelas, Josep .
NATURE PLANTS, 2019, 5 (09) :944-951
[6]   A new calibration of the effective scattering albedo and soil roughness parameters in the SMOS SM retrieval algorithm [J].
Fernandez-Moran, R. ;
Wigneron, J. -P. ;
De Lannoy, G. ;
Lopez-Baeza, E. ;
Parrens, M. ;
Mialon, A. ;
Mahmoodi, A. ;
Al-Yaari, A. ;
Bircher, S. ;
Al Bitar, A. ;
Richaume, P. ;
Kerr, Y. .
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION, 2017, 62 :27-38
[7]   SMOS-IC: An Alternative SMOS Soil Moisture and Vegetation Optical Depth Product [J].
Fernandez-Moran, Roberto ;
Al-Yaari, Amen ;
Mialon, Arnaud ;
Mahmoodi, Ali ;
Al Bitar, Ahmad ;
De lannoy, Gabrielle ;
Rodriguez-Fernandez, Nemesio ;
Lopez-Baeza, Ernesto ;
Kerr, Yann ;
Wigneron, Jean-Pierre .
REMOTE SENSING, 2017, 9 (05)
[8]   SMOS optical thickness changes in response to the growth and development of crops, crop management, and weather [J].
Hornbuckle, Brian K. ;
Patton, Jason C. ;
VanLoocke, Andy ;
Suyker, Andrew E. ;
Roby, Matthew C. ;
Walker, Victoria A. ;
Iyer, Eswar R. ;
Herzmann, Daryl E. ;
Endacott, Erik A. .
REMOTE SENSING OF ENVIRONMENT, 2016, 180 :320-333
[9]   Regions of strong coupling between soil moisture and precipitation [J].
Koster, RD ;
Dirmeyer, PA ;
Guo, ZC ;
Bonan, G ;
Chan, E ;
Cox, P ;
Gordon, CT ;
Kanae, S ;
Kowalczyk, E ;
Lawrence, D ;
Liu, P ;
Lu, CH ;
Malyshev, S ;
McAvaney, B ;
Mitchell, K ;
Mocko, D ;
Oki, T ;
Oleson, K ;
Pitman, A ;
Sud, YC ;
Taylor, CM ;
Verseghy, D ;
Vasic, R ;
Xue, YK ;
Yamada, T .
SCIENCE, 2004, 305 (5687) :1138-1140
[10]   Compared performances of SMOS-IC soil moisture and vegetation optical depth retrievals based on Tau-Omega and Two-Stream microwave emission models [J].
Li, Xiaojun ;
Al-Yaari, A. ;
Schwank, M. ;
Fan, Lei ;
Frappart, F. ;
Swenson, J. ;
Wigneron, J. -P. .
REMOTE SENSING OF ENVIRONMENT, 2020, 236
12