Results 11 to 20 of about 27,923 (202)

A seasonal algorithm of the snow-covered area fraction for mountainous terrain [PDF]

open access: yesThe Cryosphere, 2021
The snow cover spatial variability in mountainous terrain changes considerably over the course of a snow season. In this context, fractional snow-covered area (fSCA) is an essential model parameter characterizing how much ground surface in a grid cell is
N. Helbig   +9 more
doaj   +5 more sources

Automated Webcam Monitoring of Fractional Snow Cover in Northern Boreal Conditions [PDF]

open access: yesGeosciences, 2017
Fractional snow cover (FSC) is an important parameter to estimate snow water equivalent (SWE) and surface albedo important to climatic and hydrological applications. The presence of forest creates challenges to retrieve FSC accurately from satellite data,
Ali Nadir Arslan   +6 more
doaj   +5 more sources

Fractional snow-covered area parameterization over complex topography [PDF]

open access: yesHydrology and Earth System Sciences, 2015
Fractional snow-covered area (SCA) is a key parameter in large-scale hydrological, meteorological and regional climate models. Since SCA affects albedos and surface energy balance fluxes, it is especially of interest over mountainous terrain where ...
N. Helbig   +3 more
doaj   +4 more sources

Measurement error in remotely sensed fractional snow cover datasets: implications for ecological research [PDF]

open access: yesEnvironmental Research: Ecology
Snow cover and snow melt patterns are important features of the Arctic environment, with wide-ranging repercussions for ecology. Datasets based on satellite imaging—often freely available—provide a powerful means for estimating snow cover.
Rowan Jacques-Hamilton   +4 more
doaj   +4 more sources

Estimation and Evaluation of the FY-3D/MERSI-II Fractional Snow Cover in China

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The frequent occurrence of intense snowfall events and extreme temperature fluctuations in China significantly hampers the precise monitoring of snow-covered areas.
Jinyu Huang   +5 more
doaj   +2 more sources

Landsat, MODIS, and VIIRS snow cover mapping algorithm performance as validated by airborne lidar datasets [PDF]

open access: yesThe Cryosphere, 2023
Snow cover mapping algorithms utilizing multispectral satellite data at various spatial resolutions are available, each treating subpixel variation differently.
T. Stillinger   +6 more
doaj   +1 more source

Impact of Surface Albedo Assimilation on Snow Estimation

open access: yesRemote Sensing, 2020
Surface albedo has a significant impact in determining the amount of available net radiation at the surface and the evolution of surface water and energy budget components. The snow accumulation and timing of melt, in particular, are directly impacted by
Sujay Kumar   +3 more
doaj   +1 more source

Spatial Estimation of Snow Water Equivalent for Glaciers and Seasonal Snow in Iceland Using Remote Sensing Snow Cover and Albedo

open access: yesHydrology, 2023
Efficient water resource management in glacier- and snow-dominated basins requires accurate estimates of the snow water equivalent (SWE) in late winter and spring and melt onset timing and intensity.
Andri Gunnarsson, Sigurdur M. Gardarsson
doaj   +1 more source

Fractional snow-covered area: Scale-independent peak of winter parameterization [PDF]

open access: yesThe Cryosphere, 2020
Abstract. The spatial distribution of snow in the mountains is significantly influenced through interactions of topography with wind, precipitation, shortwave and longwave radiation, and avalanches that may relocate the accumulated snow. One of the most crucial model parameters for various applications such as weather forecasts, climate predictions and
N. Helbig   +10 more
openaire   +5 more sources

Snow-Covered Area Retrieval from Himawari–8 AHI Imagery of the Tibetan Plateau

open access: yesRemote Sensing, 2019
Daily snow-covered area retrieval using the imagery in solar reflective bands often encounters extensive data gaps caused by cloud obscuration. With the inception of geostationary satellites carrying advanced multispectral imagers of high temporal ...
Gongxue Wang   +5 more
doaj   +1 more source

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