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Development of an operational algorithm for estimating snow-cover fraction
Geological Society, London, Special Publications, 2017Abstract This article describes an attempt to map snow cover accurately from other land covers using Moderate Resolution Imaging Spectrometer (MODIS) data of 500 m spatial resolution. The workflow includes reflectance modelling, computing snow-cover fraction (SCF) and establishing an empirical relationship between the SCF and normalized ...
K. V. Mitkari +4 more
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An empirical formula to compute snow cover fraction in GCMs
Advances in Atmospheric Sciences, 2004There exists great uncertainty in parameterizing snow cover fraction in most general circulation models (GCMs) using various empirical formulae, which has great influence on the performance of GCMs. This work reviews the commonly used relationships between region-averaged snow depth (or snow water equivalent) and snow cover extent (or fraction) and ...
Tongwen Wu, Guoxiong Wu
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Model-driven retrieval of fractional snow cover area
Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005Operational snow cover mapping by optical sensors has taken place for more than two decades, but there is still a demand for improved mapping accuracy. Most operational products are binary (snow/no-snow). In the work presented here, a new approach has been taken to achieve significant improvements in the accuracy.
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Development of the Aqua MODIS NDSI fractional snow cover algorithm and validation results
IEEE Transactions on Geoscience and Remote Sensing, 2006 The principal purpose of this paper is to describe the development and validation of an algorithm to estimate the fraction of snow cover within a 500-m pixel of the Moderate Resolution Imaging Spectroradiometer (MODIS) operating on the Earth Observing System Aqua spacecraft.
V V Salomonson, Igor Appel
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Snow Cover Fraction In A General Circulation Model
2001Snow cover fraction (SCF) has a significant influence on the surface albedo and thus on the radiation balance and surface climate. Long-term three dimensional simulations with General Circulation Models (GCMs) showed that the SCF greatly affects the climate in the Northern Hemisphere.
A. Roesch, M. Wild, A. Ohmura
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Fractional Snow Cover Mapping from FY-2 VISSR Imagery of China [PDF]
Remote Sensing, 2017 Daily fractional snow cover (FSC) products derived from optical sensors onboard low Earth orbit (LEO) satellites are often discontinuous, primarily due to prevalent cloud cover. To map the daily cloud-reduced FSC over China, we utilized clear-sky multichannel observations from the first-generation Chinese geostationary orbit (GEO) satellites (namely ...
Gongxue Wang +2 more
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Meteorology and Atmospheric Physics, 2016
Seasonal snow plays an important part in Earth’s climate system. Snow cover regulates the land surface energy balance through altering the albedo of the land surface. To utilize the satellite-retrieved snow cover fraction (SCF) and snow depth (SD) data sufficiently and avoid inconsistency, this paper developed a very simple but robust quality control ...
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Seasonal snow plays an important part in Earth’s climate system. Snow cover regulates the land surface energy balance through altering the albedo of the land surface. To utilize the satellite-retrieved snow cover fraction (SCF) and snow depth (SD) data sufficiently and avoid inconsistency, this paper developed a very simple but robust quality control ...
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Improving the Fractional Snow Cover Estimation Using an Optimized Regression
IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022Jiabei Wang, Ying Zhou, Tao He
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Assimilation of MODIS snow cover fraction for improving snow variables estimation in west China
SPIE Proceedings, 2012Accurate estimation of snow properties is important for effective water resources management especially in mountainous areas. In this work, we develop a snow data assimilation scheme based on ensemble Kalman filter (EnKF), which can assimilate remotely sensed snow observations into the Common Land Model (CoLM) to produce spatially continuous and ...
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Trends in the Sea Ice and Snow Cover Extent: A Fractional Integration Analysis
This paper analyses monthly data on sea ice cover extent from January 1979 to April 2024 and on snow cover extent from January 1967 to April 2024 for various regions of the world using fractional integration methods. A statistically significant time trend is found when the errors in the regression model are incorrectly assumed to exhibit short memory ...Caporale, GM +2 more
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