MEMLS3&a: Microwave Emission Model of Layered Snowpacks adapted to include backscattering
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منابع مشابه
MEMLS3&a: Microwave Emission Model of Layered Snowpacks adapted to include backscattering
The Microwave Emission Model of Layered Snowpacks (MEMLS) was originally developed for microwave emissions of snowpacks in the frequency range 5–100 GHz. It is based on six-flux theory to describe radiative transfer in snow including absorption, multiple volume scattering, radiation trapping due to internal reflection and a combination of coherent and incoherent superposition of reflections bet...
متن کاملMicrowave Emission Model of Layered Snowpacks
A thermal Microwave Emission Model of Layered Snowpacks (MEMLS) was developed for the frequency range, 5 to 100 GHz. It is based on radiative transfer, using six-flux theory to describe multiple volume scattering and absorption, including radiation trapping due to total reflection and a combination of coherent and incoherent superpositions of reflections between layer interfaces. The scattering...
متن کاملSnow Microwave Emission Modeling of Ice Lenses within the Snowpack Using the Microwave Emission Model for Layered Snowpacks (MEMLS)
Ice lens formation, which follows rain on snow events or melt-refreeze cycles in winter and spring, is likely to become more frequent as a result of increasing mean winter temperatures at high latitudes. These ice lenses significantly affect the microwave scattering and emission properties and, hence, snow brightness temperatures that are widely used to monitor snow cover properties from space....
متن کاملSimulation of the microwave emission of multi-layered snowpacks using the Dense Media Radiative transfer theory: the DMRT-ML model
DMRT-ML is a physically based numerical model designed to compute the thermal microwave emission of a given snowpack. Its main application is the simulation of brightness temperatures at frequencies in the range 1–200 GHz similar to those acquired routinely by spacebased microwave radiometers. The model is based on the Dense Media Radiative Transfer (DMRT) theory for the computation of the snow...
متن کاملPUBLISHED BY THE AMERICAN GEOPHYSICAL UNION Coupling the snow thermodynamic model SNOWPACK with the microwave emission model of layered snowpacks for subarctic and arctic snow water equivalent retrievals
[1] Satellite-passive microwave remote sensing has been extensively used to estimate snow water equivalent (SWE) in northern regions. Although passive microwave sensors operate independent of solar illumination and the lower frequencies are independent of atmospheric conditions, the coarse spatial resolution introduces uncertainties to SWE retrievals due to the surface heterogeneity within indi...
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ژورنال
عنوان ژورنال: Geoscientific Model Development
سال: 2015
ISSN: 1991-9603
DOI: 10.5194/gmd-8-2611-2015