On the spatial scaling of soil moisture
WebThe spatial structure of soil moisture exhibited linearity in the log-log dependency of the variance versus scale-factor, up to a scale factor of -2.6 (6100 m X 6100 m) irrespective of wet and dry conditions, whereas dry fields reflect nonlinear (multi-scaling) behavior Web26 de mar. de 2003 · Scaling Methods in Soil Physics offers novel approaches based on geostatistics, artificial intelligence, wavelet transforms, fractal theory, soil-landscape relationships, computer simulations, and advances in theories of scale developed and tested to facilitate the use of soil physics data in a wide variety of soil/land/earth-related …
On the spatial scaling of soil moisture
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Web15 de set. de 2014 · Finally, the gravimetric soil moisture values from four flight dates were pooled representing the maximum, minimum and mean values of 30.6, 10.1 and 19.7, respectively, and used as model targets. Also, the spatial distribution of soil moisture from high to low values is in accordance with time after irrigation. WebIn this study, a comparison of the scaling characteristics of spatial soil moisture fields derived from a set of microwave radiometer observations from the Southern Great Plains …
Web7 de mar. de 2012 · At large scale (regional), soil moisture spatial pattern is dominated by precipitation and radiative forcings (Li et al. 2009; Das et al. 2010 ). Therefore, to identify the relative importance of individual factors, studies should be … Web19 de abr. de 2012 · Summary of the instantaneous spatial standard deviation for point-scale, surface soil moisture samples obtained within sampling extents ranging from 2.5 …
WebSoil moisture is a crucial component of land–atmosphere interaction systems. It has a decisive effect on evapotranspiration and photosynthesis, which then notably impacts the … http://hopmans.lawr.ucdavis.edu/6_spatial_scaling.htm
Web18 de jun. de 2006 · Spatial heterogeneity in precipitation and vegetation exert significant control on scaling properties, especially in water-limited ecosystems. Computational results indicate that relationships between spatially averaged variables controlling soil-moisture dynamics are non-unique at larger averaging scales, even when unique, non-hysteretic …
Web26 de fev. de 2024 · The soil moisture θ is spatially variable and controlled by many factors, like, e.g., the hydraulic properties of the soil, topography, interaction with surface … church of christ pensacola floridaWeb82 root zone soil moisture maps generated by the remote sensing algorithm SEBAL. This 83 study is novel since previous multi-scaling studies on soil moisture dealt with soil 84 moisture in the top 0-5 cm of the soil (Jackson, Schumgge, and Engman 1997; Jackson 85 and O’Neill 1986) while our study deals with root zone soil moisture. dewalt mechanics socket setWeb9 de ago. de 2024 · The PALS soil moisture was retrieved from the high spatial resolution L-band T B provided by the aircraft system using the single-channel algorithm, which calculated soil moisture from single-wavelength (L-band) radiometer observations as well as other ancillary data such as soil properties, compared with the 1-km downscaled … church of christ pastor jobsWeb1 de nov. de 2008 · [1] Soil moisture content on a horizontal scale of hectometers and at depths of decimeters can be inferred from measurements of low-energy cosmic-ray neutrons that are generated within soil, moderated mainly by hydrogen atoms, and diffused back to the atmosphere. These neutrons are sensitive to water content changes, but largely … dewalt mechanics tool set saleWeb17 de jun. de 2016 · We have developed a spatial upscaling method for SMC that enables the direct combination of in situ measurements and remotely sensed data. The approach is based on the fact that spatial soil moisture patterns are related to ancillary features like topography, land cover, and soil type. church of christ pennsylvania bricktoniteWeb15 de mar. de 2024 · On the spatial scaling of soil moisture. J. Hydrol. 217, 203–224 ... Melone, F. & Moramarco, T. Soil moisture spatial variability in experimental areas of central Italy. J. Hydrol. 333, 356 ... church of christ penrithWebThe spatial variability of soil moisture makes it difficult to represent watershed-scale soil moisture using traditional point-scale soil moisture sensors. In the temporal stability … dewalt mechanics tool set metric