Remote detection of bare soil moisture using a surface-temperature-based soil evaporation transfer coefficient

Abstract An approach for estimating soil moisture is presented and tested by using surface-temperature-based soil evaporation transfer coefficient ( h a ), a coefficient recently proposed through the equation h a =  ( T s  −  T a )/( T sd  −  T a ) , where T s , T sd , and T a are land surface temperature (LST), reference soil (dry soil without evaporation) surface temperature, and air temperature respectively. Our analysis and controllable experiment indicated that h a closely related to soil moisture, and therefore, a relationship between field soil moisture and h a could be developed for soil moisture estimation. Field experiments were carried out to test the relationship between h a and soil moisture. Time series Aqua-MODIS images were acquired between 11 Sep. 2006 and 1 Nov. 2007. Then, MODIS derived h a and simultaneous measured soil moisture for different soil depths were used to establish the relations between the two variables. Results showed that there was a logarithmic relationship between soil moisture and h a ( P 3 /cm 3 and 0.0503 cm 3 /cm 3 for surface energy balance method at two soil depths (10 cm and 20 cm), with RMSE of 0.0467 cm 3 /cm 3 and 0.0581 cm 3 /cm 3 for maximum temperature method at two soil depths. For vegetated surfaces, the ratio of h a and NDVI suggested to be considered. The proposed approach has a great potential for soil moisture and drought evaluation by remote sensing.

[1]  L. S. Pereira,et al.  Revised FAO Procedures for Calculating Evapotranspiration: Irrigation and Drainage Paper No. 56 with Testing in Idaho , 2001 .

[2]  Thomas J. Jackson,et al.  Modeling and assimilation of root zone soil moisture using remote sensing observations in Walnut Gulch Watershed during SMEX04 , 2008 .

[3]  Nazzareno Pierdicca,et al.  Soil moisture estimation over vegetated terrains using multitemporal remote sensing data. , 2010 .

[4]  Robert J. Gurney,et al.  The theoretical relationship between foliage temperature and canopy resistance in sparse crops , 1990 .

[5]  L. S. Pereira,et al.  Crop evapotranspiration : guidelines for computing crop water requirements , 1998 .

[6]  Sadanori Sase,et al.  Theoretical Analysis and Experimental Verification of a Remotely Measurable Plant Transpiration Transfer Coefficient , 2003 .

[7]  José A. Sobrino,et al.  A Comparative Study of Land Surface Emissivity Retrieval from NOAA Data , 2001 .

[8]  E. Njoku,et al.  Passive microwave remote sensing of soil moisture , 1996 .

[9]  M. S. Moran,et al.  Soil moisture evaluation using multi-temporal synthetic aperture radar (SAR) in semiarid rangeland , 2000 .

[10]  Qiming Qin,et al.  Evaluation of MODIS derived perpendicular drought index for estimation of surface dryness over northwestern China , 2008 .

[11]  Peijun Shi,et al.  Theoretical analysis of a remotely measurable soil evaporation transfer coefficient , 2006 .

[12]  M. S. Moran,et al.  Relation between ERS‐1 synthetic aperture radar data and measurements of surface roughness and moisture content of rocky soils in a semiarid rangeland , 1998 .

[13]  Zhao-Liang Li,et al.  Validation of the land-surface temperature products retrieved from Terra Moderate Resolution Imaging Spectroradiometer data , 2002 .

[14]  W. Swinbank.  Long‐wave radiation from clear skies , 1963 .

[15]  Emanuele Santi,et al.  Soil Moisture Estimates From AMSR-E Brightness Temperatures by Using a Dual-Frequency Algorithm , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[16]  Byung Ho Choi,et al.  A Study on Comparison of Satellite-Tracked Drifter Temperature with Satellite-Derived Sea Surface Temperature of NOAA/NESDIS , 1994 .

[17]  Liu Zhenhua,et al.  Research on the method for retrieving soil moisture using thermal inertia model , 2006 .

[18]  S. Liang.  Narrowband to broadband conversions of land surface albedo I Algorithms , 2001 .

[19]  Yongqiang Zhang,et al.  Integration of MODIS data into a simple model for the spatial distributed simulation of soil water content and evapotranspiration , 2006 .

[20]  R. Fensholt,et al.  Derivation of a shortwave infrared water stress index from MODIS near- and shortwave infrared data in a semiarid environment , 2003 .

[21]  A. D. Roo,et al.  LISEM: A SINGLE‐EVENT, PHYSICALLY BASED HYDROLOGICAL AND SOIL EROSION MODEL FOR DRAINAGE BASINS. II: SENSITIVITY ANALYSIS, VALIDATION AND APPLICATION , 1996 .

[22]  Q. Qin,et al.  Modified perpendicular drought index (MPDI): a real-time drought monitoring method , 2007 .

[23]  Liu Qinhuo,et al.  The Soil Moisture Detection for Different Vegetation Coverage Based on the MODIS Data , 2006 .

[24]  Shen Yan-jun.  Dual-source remote sensing model for estimating land surface evapotranspiration and its application in North China Plain , 2006 .

[25]  Thomas J. Jackson,et al.  Comparison of ground-based and remotely-sensed surface soil moisture estimates over complex terrain during SMEX04 , 2008 .

[26]  Qiming Qin,et al.  A re‐examination of perpendicular drought indices , 2008 .

[27]  Frank Veroustraete,et al.  Estimating evapotranspiration of European forests from NOAA-imagery at satellite overpass time: Towards an operational processing chain for integrated optical and thermal sensor data products , 2005 .

[28]  X. Hao,et al.  Soil moisture estimation using MODIS and ground measurements in eastern China , 2007 .

[29]  Jiftah Ben-Asher,et al.  Estimation of Soil Evaporation Using the Differential Temperature Method , 1999 .

[30]  A. Kalra,et al.  Estimating soil moisture using remote sensing data: A machine learning approach , 2010 .

[31]  Guo Yu Qiu,et al.  An improved methodology to measure evaporation from bare soil based on comparison of surface temperature with a dry soil surface , 1998 .

[32]  Yong Xue,et al.  Soil moisture retrieval from MODIS data in Northern China Plain using thermal inertia model , 2007 .

[33]  Kaniska Mallick,et al.  Estimating volumetric surface moisture content for cropped soils using a soil wetness index based on surface temperature and NDVI , 2009 .

[34]  G. Qiu,et al.  Experimental determination of soil evaporation stages with soil surface temperature. , 2010 .