منابع مشابه
Remote Sensing, Model-Derived and Ground Measurements of Snow Water Equivalent and Snow Density in Alaska
Snow water equivalent (SWE) is important for investigations of annual to decadal-scale changes in A and energy-water cycles. Passive microwave satellite-based retrieval algorithm estimates of SWE now sp three decades. SWE retrievals by the Advanced Microwave Scanning Radiometer for the Earth Ob (AMSR-E) onboard the NASA-Aqua satellite ended at October 2011. A critical parameter in the AM gorith...
متن کاملInferring Snow Water Equivalent for a Snow-Covered Ground Reflector Using GPS Multipath Signals
A nonlinear least squares fitting algorithm is used to estimate both snow depth and snow density for a snow-layer above a flat ground reflector. The product of these two quantities, snow depth and density, provides an estimate of the snow water equivalent. The input to this algorithm is a simple ray model that includes a speculary reflected signal along with a direct signal. These signals are t...
متن کاملSnow melting bias in microwave mapping of Antarctic snow accumulation
Snow melting bias in microwave mapping of Antarctic snow accumulation O. Magand, G. Picard, L. Brucker, M. Fily, and C. Genthon Laboratoire de Glaciologie et Géophysique de l’Environnement, CNRS, Université Joseph Fourier-Grenoble, 54 Rue Molière, BP 96, 38402 St Martin d’Hères Cedex, France Received: 13 February 2008 – Accepted: 4 March 2008 – Published: 24 April 2008 Correspondence to: G. Pic...
متن کاملSnow Density and Ground Permittivity Retrieved from L-Band Radiometry: Melting Effects
Ground permittivity and snow density retrievals for the “snow-free period”, “cold winter period”, and “early spring period” are performed using the experimental L-band radiometry data from the winter 2016/2017 campaign at the Davos-Laret Remote Sensing Field Laboratory. The performance of the single-angle and multi-angle two-parameter retrieval algorithms employed during each of the aforementio...
متن کاملModeling ionic solute transport in melting snow
A numerical model that includes the effects of mass transfer between mobile and immobile liquid phases, advection, hydrodynamic dispersion, and melt-freeze episodes was developed to simulate ionic solute transport in melting snow. Model calibration using a tracer-infused laboratory snowpack experiment yielded a dispersivity of 0.05 cm and a mobile-immobile phase mass-transfer coefficient of 4 3...
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ژورنال
عنوان ژورنال: Journal of Snow Engineering of Japan
سال: 1996
ISSN: 0913-3526,1882-4358
DOI: 10.4106/jsse.12.61