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Assessment of Root Zone Soil Moisture Estimations from SMAP, SMOS and MODIS Observations

Miriam Pablos, Ángel González-Zamora, Nilda Sánchez, José Martínez-Fernández
2018 Remote Sensing  
The SMOS-Barcelona Expert Center (BEC) L4 SSM product and the apparent thermal inertia (ATI)-derived SSM from the Moderate Resolution Imaging Spectroradiometer (MODIS) data were used as SSM datasets.  ...  The first two were the Soil Moisture Active Passive (SMAP) and the Soil Moisture and Ocean Salinity (SMOS) L4 RZSM products.  ...  For instance, methods based on apparent thermal inertia (ATI) to estimate soil moisture rely upon the fact that wet soils have a higher thermal inertia and a lower 2016.  ... 
doi:10.3390/rs10070981 fatcat:dvi3qn5yj5hgdls6lgw3gy3cvm

Very High Spatial Resolution Downscaled SMAP Radiometer Soil Moisture in the CONUS Using VIIRS/MODIS Data

Bin Fang, Venkat Lakshmi, Michael Cosh, Christopher Hain
2021 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
In this study, a SM downscaling algorithm was developed based on the vegetation modulated apparent thermal inertia (ATI) relationship between SM and changes in land surface temperature (LST).  ...  sciences, specifically after the Soil Moisture Active and Passive (SMAP) was launched in 2015.  ...  USDA is an equal opportunity provider and employer.  ... 
doi:10.1109/jstars.2021.3076026 fatcat:kamd5c36b5aq7dexnoh5hdhn7m

Required sampling density of ground-based soil moisture and brightness temperature observations for calibration and validation of L-band satellite observations based on a virtual reality

Shaoning Lv, Bernd Schalge, Pablo Saavedra Garfias, Clemens Simmer
2020 Hydrology and Earth System Sciences  
With the Soil Moisture and Ocean Salinity (SMOS) and Soil Moisture Active Passive (SMAP) missions in orbit, considerable efforts are being made to evaluate derived soil moisture products via ground observations  ...  The maximum allowed sampling distance depends on the land-surface heterogeneity and the meteorological situation, which influences the soil moisture patterns, and ranges from about 6 to 17 km for a 70  ...  Qin et al. (2013) suggested the use of MODIS-derived apparent thermal inertia to interpolate between in situ soil moisture measurements.  ... 
doi:10.5194/hess-24-1957-2020 fatcat:hkcj5g2xzfcwzainnictkudok4

Required sampling-density of ground-based soil moisture and brightness temperature observations for calibration/validation of L-band satellite observations based on a virtual reality

Shaoning Lv, Bernd Schalge, Pablo Saavedra Garfias, Clemens Simmer
2019 Hydrology and Earth System Sciences Discussions  
With the Soil Moisture and Ocean Salinity (SMOS) and Soil Moisture Active Passive (SMAP) missions in orbit, considerable efforts are made to evaluate their soil moisture products via ground observations  ...  The minimum sampling resolution depends on the land-surface inhomogeneity and the meteorological situation, which influence the soil moisture patterns, and ranges from about 7 km to 17 km for a 70&  ...  Furthermore, we thank Prabhakar Shresta and Mauro Sulis from the Transregional Collaborative Research Center 32 (TR32) for their preliminary work and introduction to the TerrSysMP modeling platform.  ... 
doi:10.5194/hess-2019-192 fatcat:fynq6mpufjhvrbczi7jppsa5f4

An Advanced Framework for Merging Remotely Sensed Soil Moisture Products at the Regional scale Supported by Error Structure Analysis: A Case Study on the Tibetan Plateau

Jian Kang, Rui Jin, Xin Li
2021 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
The RS apparent thermal inertia (ATI) is transformed into SM values as the reference data with reliable systemic variability.  ...  In this article, a data fusion scheme is examined on the Tibetan Plateau, and the Soil Moisture Active Passive mission, Soil Moisture and Ocean Salinity mission, and Advanced Microwave Scanning Radiometer  ...  In the last decade, the Soil Moisture and Ocean Salinity (SMOS) mission [11] and the Soil Moisture Active Passive (SMAP) mission [12] - [14] have continued to provide SM products by employing the  ... 
doi:10.1109/jstars.2021.3065408 fatcat:p5bydslsp5drplqdu5cluggvzu

Performance of multi-source passive microwave soil moisture products in maize cultivation areas of Northeast China

Xingming Zheng, Zhuangzhuang Feng, Hongxin Xu, Yanlong Sun, Yu Bai, Lei Li, Bingze Li, Xiaowei Zhao, Rui Zhang, Tao Jiang, Xiaojie Li, Xiaofeng Li
2020 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
Passive microwave remote sensing is an effective way to obtain global soil moisture (SM) measurements, and many studies have explored the uncertainty inherent in microwave-based SM products.  ...  and rainfall caused the soil surface roughness to increase or decrease within a growing season, which may have been an important source of satellite-scale SM error indicated by high bias values in July  ...  ACKNOWLEDGMENT The authors would like to thank the Changchun Jingyuetan remote sensing test site and the Chinese Academy of Sciences for providing ground soil moisture data.  ... 
doi:10.1109/jstars.2020.2995623 fatcat:esdowwk6wna3fd5yigiyj33a3a

Inter-comparison of spatial upscaling methods for evaluation of satellite-based soil moisture

Jun Qin, Long Zhao, Yingying Chen, Kun Yang, Yaping Yang, Zhuoqi Chen, Hui Lu
2015 Journal of Hydrology  
moisture estimated by assimilating microwave signals into a land surface model.  ...  The apparent-thermal-inertia-based upscaling is the most stable one, which has been developed with the aid of high-resolution satellite thermal data.  ...  Acknowledgements This work was supported by the Natural Science Foundation of China (Grant Nos. 41171268 and, China "863" project under contract 2013AA122801, and the CMA Special Fund for Scientific Research  ... 
doi:10.1016/j.jhydrol.2015.01.061 fatcat:yw6bhwmltjesznrksbj55skaxe

Mapping High Spatiotemporal-Resolution Soil Moisture by Upscaling Sparse Ground-Based Observations Using a Bayesian Linear Regression Method for Comparison with Microwave Remotely Sensed Soil Moisture Products

Jian Kang, Rui Jin, Xin Li, Yang Zhang
2021 Remote Sensing  
The Soil Moisture and Ocean Salinity (SMOS) products were in worse agreement with the upscaled SM and were inferior to the R value of the X-band SM of the Advanced Microwave Scanning Radiometer 2 (AMSR2  ...  In recent decades, microwave remote sensing (RS) has been used to measure soil moisture (SM).  ...  The reference data can be chosen from RS SM products, modeled datasets, representative SM transformed by an ancillary variable related to SM, e.g., the apparent thermal inertia (ATI) [12] , the soil evaporation  ... 
doi:10.3390/rs13020228 fatcat:kno7wpt3jng5rnilhxaii6mzji

A Multiscale Soil Moisture and Freeze–Thaw Monitoring Network on the Third Pole

Kun Yang, Jun Qin, Long Zhao, Yingying Chen, Wenjun Tang, Menglei Han, Lazhu, Zhuoqi Chen, Ning Lv, Baohong Ding, Hui Wu, Changgui Lin
2013 Bulletin of The American Meteorological Society - (BAMS)  
Among the multisphere interactions on the TP, soil moisture (SM) plays a fundamental role in controlling land surface energy partition, adjusting surface runoff and soil drainage, regulating canopy transpiration  ...  , with intension to pool international efforts to reveal and quantify the "water-ice-air-ecosystem-human" interactions in this region (Yao et al. 2012) .  ...  GYHY201206008, and the National Natural Science Foundation of China Grants 41190083 and EU-FP7 CEOP-AEGIS.  ... 
doi:10.1175/bams-d-12-00203.1 fatcat:dbj74kq2f5f5fg5crbmtmo2m74

Ground, Proximal and Satellite Remote Sensing of Soil Moisture

Ebrahim Babaeian, Morteza Sadeghi, Scott B. Jones, Carsten Montzka, Harry Vereecken, Markus Tuller
2019 Reviews of Geophysics  
Soil moisture (SM) is a key hydrologic state variable that is of significant importance for numerous Earth and environmental science applications that directly impact the global environment and human society  ...  Despite the impressive progress over the last decade, there are still many opportunities and needs to, for example, improve SM retrieval from remotely sensed optical, thermal, and microwave data and opportunities  ...  Acknowledgments We acknowledge funding from the National Science Foundation (NSF) via grants 1521164 and 1521469 awarded to the University of Arizona and Utah State University.  ... 
doi:10.1029/2018rg000618 fatcat:hcfa2uqiz5ffnf7o3fijc6rnwu

An evapotranspiration model self-calibrated from remotely sensed surface soil moisture, land surface temperature and vegetation cover fraction: application to disaggregated SMOS and MODIS data

Bouchra Ait Hssaine, Olivier Merlin, Jamal Ezzahar, Nitu Ojha, Salah Er-raki, Said Khabba
2019 Hydrology and Earth System Sciences Discussions  
resolution imaging spectroradiometer) <i>LST</i> and <i>f<sub>c</sub></i> data and the 1&amp;thinsp;km resolution <i>SM</i> data disaggregated from SMOS (Soil Moisture and Ocean Salinity) observations  ...  </strong> Thermal-based two-source energy balance modeling is very useful for estimating the land evapotranspiration (ET) at a wide range of spatial and temporal scales.  ...  However, the TSEB-SM output provides a quite significant improvement, with an absolute M BE lower than -61 W/m 2 during all seasons. microwave-derived near-surface soil moisture (SM) from SMOS and thermal-derived  ... 
doi:10.5194/hess-2019-105 fatcat:kv7clwd32rdspegbwaxbb4s4se

Actual evapotranspiration in drylands derived from in-situ and satellite data: Assessing biophysical constraints

Monica García, Inge Sandholt, Pietro Ceccato, Marc Ridler, Eric Mougin, Laurent Kergoat, Laura Morillas, Franck Timouk, Rasmus Fensholt, Francisco Domingo
2013 Remote Sensing of Environment  
The novelty of this paper is the computation of a key model parameter, the soil moisture constraint, relying on the concept of apparent thermal inertia (f SM-ATI ) computed with surface temperature and  ...  PT-JPL-daily model with a soil moisture constraint based on apparent thermal inertia, f SM-ATI offers great potential for regionalization as no field-calibrations are required and water vapor deficit estimates  ...  The authors acknowledge helpful comments and feedback from Mads Olander Rasmussen, Hector Nieto and Simon Proud.  ... 
doi:10.1016/j.rse.2012.12.016 fatcat:o7ybjhk2bngtzeom25rvwzn7qa

A global assessment of PT-JPL soil evaporation in agroecosystems with optical, thermal, and microwave satellite data

Lilin Zhang, Michael Marshall, Andy Nelson, Anton Vrieling
2021 Agricultural and Forest Meteorology  
In this study, we isolated the uncertainties resulting from soil evaporation and assessed three Earth observation-based alternatives -apparent thermal inertia (ATI), microwave soil moisture (SM), and optical  ...  A B S T R A C T Evapotranspiration (ET) accounts for water movements from land to air and plays a vital role in the terrestrial water, energy, and carbon cycles.  ...  PT-based models with revised soil moisture constraint PT-ATI The first alternative EO-based indicator of soil moisture is apparent thermal inertia (ATI), which relates to the diurnal air temperature  ... 
doi:10.1016/j.agrformet.2021.108455 fatcat:2jqkcej23jhjnpsvdmjvfayy7i

Multi-Temporal Evaluation of Soil Moisture and Land Surface Temperature Dynamics Using in Situ and Satellite Observations

Miriam Pablos, José Martínez-Fernández, María Piles, Nilda Sánchez, Mercè Vall-llossera, Adriano Camps
2016 Remote Sensing  
Nowadays, there are two missions dedicated to monitoring the Earth's surface SM using L-band radiometers: ESA's Soil Moisture and Ocean Salinity (SMOS) and NASA's Soil Moisture Active Passive (SMAP).  ...  Specifically, the agreement of instantaneous SM with a variety of LST-derived parameters is analyzed to better understand the fundamental link of the SM-LST relationship through ET and thermal inertia.  ...  The work presented in this paper was in part supported by the Spanish National R + D Program on Space of the Ministry of Economy and Competitiveness, through a Formación de Personal Investigador (FPI)  ... 
doi:10.3390/rs8070587 fatcat:t2jhkdhxhnhg7cuesl2duhrvwq

Estimating irrigation water use over the contiguous United States by combining satellite and reanalysis soil moisture data

Felix Zaussinger, Wouter Dorigo, Alexander Gruber, Angelica Tarpanelli, Paolo Filippucci, Luca Brocca
2019 Hydrology and Earth System Sciences  
In this study, we combine surface soil moisture (SM) retrievals from the spaceborne SMAP, AMSR2 and ASCAT microwave sensors with modeled soil moisture from MERRA-2 reanalysis to derive monthly IWU dynamics  ...  State-aggregated mean IWU volumes derived from the combination of SMAP and MERRA-2 soil moisture show a good correlation with statistically reported state-level irrigation water withdrawals (IWW) but systematically  ...  They used soil moisture retrievals from ASCAT, AMSR-E, SMOS and WindSat, and the ESA CCI multi-satellite surface soil moisture product in combination with soil moisture estimates from the Noah LSM (land  ... 
doi:10.5194/hess-23-897-2019 fatcat:g4foaxeudfcjvjfi6yj4xda4nu
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