Results 1 to 10 of about 27,873 (162)

Modelled sensitivity of the snow regime to topography, shrub fraction and shrub height [PDF]

open access: yesHydrology and Earth System Sciences, 2014
Recent studies show that shrubs are colonizing higher latitudes and altitudes in the Arctic. Shrubs affect the wind transport, accumulation and melt of snow, but there have been few sensitivity studies of how shrub expansion might affect snowmelt rates ...
C. B. Ménard, J. Pomeroy, R. Essery
core   +4 more sources

Estimating Fractional Snow Cover in Open Terrain from Sentinel-2 Using the Normalized Difference Snow Index

open access: yesRemote Sensing, 2020
Sentinel-2 provides the opportunity to map the snow cover at unprecedented spatial and temporal resolutions on a global scale. Here we calibrate and evaluate a simple empirical function to estimate the fractional snow cover (FSC) in open terrains using ...
Simon Gascoin   +2 more
exaly   +3 more sources

Estimating fractional snow cover in vegetated environments using MODIS surface reflectance data

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2022
Advances in snow-cover mapping techniques have resulted in more accurate estimation of fractional snow cover (FSC) in areas with no vegetation; however, vegetation interference limits the accuracy of available snow cover information from satellite ...
Xiongxin Xiao   +2 more
exaly   +3 more sources

Spatiotemporal Variation of Snow Cover in Tianshan Mountains, Central Asia, Based on Cloud-Free MODIS Fractional Snow Cover Product, 2001–2015

open access: yesRemote Sensing, 2017
The change in snow cover under climate change is poorly understood in Tianshan Mountains. Here, we investigate the spatiotemporal characteristics and trends of snow-covered area (SCA) and snow-covered days (SCD) in the Tianshan Mountains by using the ...
Zhiguang Tang   +2 more
exaly   +3 more sources

Estimating fractional snow cover from passive microwave brightness temperature data using MODIS snow cover product over North America [PDF]

open access: yesThe Cryosphere, 2021
The dynamic characteristics of seasonal snow cover are critical for hydrology management, the climate system, and the ecosystem functions. Optical satellite remote sensing has proven to be an effective tool for monitoring global and regional variations ...
X. Xiao   +5 more
doaj   +1 more source

Optimization of snow-related parameters in the Noah land surface model (v3.4.1) using a micro-genetic algorithm (v1.7a) [PDF]

open access: yesGeoscientific Model Development, 2022
Snowfall prediction is important in winter and early spring because snowy conditions generate enormous economic damages. However, there is a lack of previous studies dealing with snow prediction, especially using land surface models (LSMs).
S. Lim   +15 more
doaj   +1 more source

Performance Assessment of Optical Satellite-Based Operational Snow Cover Monitoring Algorithms in Forested Landscapes

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Forest cover is a crucial factor that influences the performance of optical satellite-based snow cover monitoring algorithms. However, evaluation of such algorithms in forested landscapes is rare due to lack of reliable in situ data in such regions.
Arnab Muhuri   +6 more
doaj   +1 more source

Retrieval of Fractional Snow Cover over High Mountain Asia Using 1 km and 5 km AVHRR/2 with Simulated Mid-Infrared Reflective Band

open access: yesRemote Sensing, 2022
Accurate long-term snow-covered-area mapping is essential for climate change studies and water resource management. The NOAA AVHRR/2 provides a unique data source for long-term, large-spatial-scale monitoring of snow-covered areas at a daily scale ...
Fangbo Pan   +6 more
doaj   +1 more source

MODIS Fractional Snow Cover Mapping Using Machine Learning Technology in a Mountainous Area

open access: yesRemote Sensing, 2020
To improve the poor accuracy of the MODIS (Moderate Resolution Imaging Spectroradiometer) daily fractional snow cover product over the complex terrain of the Tibetan Plateau (RMSE = 0.30), unmanned aerial vehicle and machine learning technologies are ...
Changyu Liu   +3 more
doaj   +1 more source

Application of MODIS snow cover products: wildfire impacts on snow and melt in the Sierra Nevada [PDF]

open access: yesHydrology and Earth System Sciences, 2014
The current work evaluates the spatial and temporal variability in snow after a large forest fire in northern California using Moderate Resolution Imaging Spectroradiometer (MODIS) snow-covered area and grain size (MODSCAG). MODIS MOD10A1 fractional snow-
P. D. Micheletty   +2 more
doaj   +1 more source

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