From Figure 1, the VI-Ts diagram will be readily defined Fluoro-Sorafenib if the dry and wet points are determined, which is independent of full ranges of land surface moisture and VI.Figure 1.The concept of a triangular VI-Ts diagram. Point A is called a dry then point, and Point C is called a wet point in the VI-Ts diagram. AC is named Inhibitors,Modulators,Libraries the dry edge, and BC is named the wet edge.There are some available methods to estimate component surface temperatures in previous studies. Assuming that a ��mixed�� pixel was composed of only two temperature fields, a ��target�� temperature and a ��background�� temperature, the surface temperatures of both ��target�� and ��background�� were determined using two equations based on the land surface thermal radiative energy balance of channels 3 and 4 of NOAA-6/AVHRR [12].

This multi-channel method needs the condition of the same spectral response, which is difficult to meet actually. A Bayesian-based method was proposed to estimate cloud-top subpixel brightness temperature using multi-channel infrared GOES radiometer data [13]. This method used a detailed Inhibitors,Modulators,Libraries optical model of the GOES multi-channel imaging system, which is complicated Inhibitors,Modulators,Libraries and difficult in practical applications. A genetic inverse algorithm and multi-angle thermal infrared data were used to retrieve the component temperatures of mixed pixels [14]. However, there are almost no sensors onboard the existing satellites to provide multi-angle Inhibitors,Modulators,Libraries information except the Along Track Scanning Radiometer (ATSR) launched by European Space Agency.

The morning/noon data Inhibitors,Modulators,Libraries was used to retrieve thermal inertia information, and then obtain component temperatures [15].

This thermal Inhibitors,Modulators,Libraries inertia method depended on ground experiments. Because of the limitations of the above methods, some researchers were inclined to estimate the component Inhibitors,Modulators,Libraries Inhibitors,Modulators,Libraries temperatures by means of the remotely sensed vegetation index. A linear two-source model was developed to estimate evaporation fraction where soil surface temperature within a pixel was obtained using a VI-Ts diagram [2], however vegetation surface temperature within a sampling window for defining the VI-Ts diagram was assumed to be homogeneous.

In this study, a new practical approach was developed to obtain the component Batimastat surface temperatures (vegetation / soil) based on the spatial autocorrelation of land surface moisture Belinostat supplier [16-18], in which the variation of vegetation surface temperature due to the difference of water deficit was considered.

The MODIS Cilengitide and the Advanced Spaceborne Thermal Emission Reflection Radiometer (ASTER) are onboard the NASA’s Earth Observation System (EOS)-Terra satellite launched in 1999, both of which can provide high quality observations of land surface. MODIS was designed to collect observational data over a wide range at moderate resolutions (250, 500 Axitinib 319460-85-0 and 1,000 m) with almost daily coverage of the Earth (http://modis.gsfc.nasa.gov/).