Measurements of Snow Cover
نویسندگان
چکیده
منابع مشابه
Snow Cover
Snow cover is a layer of snow on the earth’s surface, which is mainly results from snowfalls. The snow cover can be temporary, when a snow melts during several hours or days after its formation, and it can be stable, when it remains for the whole winter or with short interruptions. The snow cover formation on the globe is determined (conditioned) by the geographical zonality, surface relief, an...
متن کاملA regional snow-line method for estimating snow cover from MODIS during cloud cover
The objective of this study is to propose and evaluate a method for snow cover mapping during clouds using the daily MODIS/Terra snow cover product. The proposed SNOWL approach is based on reclassifying pixels assigned as clouds to snow or land according to their relative position to the regional snow-line elevation. The accuracy of the SNOWL approach is evaluated over Austria, using daily snow...
متن کاملSimulation of spaceborne microwave radiometer measurements of snow cover from in-situ data and emission models
In this study, spaceborne brightness temperature measurements of snow-covered sparse forest are simulated from a daily data set collected at Sodankylä, Finland during winter 2006-2007. The data set consists of measurement data of soil, snow and air. The atmospheric effects are simulated with two different methods: from measurements near the ground and from balloon-borne radio sounding profiles....
متن کاملEuropean Snow Cover Characteristics between 2000 and 2011 Derived from Improved MODIS Daily Snow Cover Products
Mean snow cover duration was derived for the entire continent of Europe based on the MODIS daily snow cover products MOD10A1 and MYD10A1 for the period from 2000 to 2011. Dates of snow cover start and snow cover melt were also estimated. Polar darkness north of ~62°N and extensive cloud coverage affected the daily snow cover, preventing a direct derivation of the desired parameters. Combining s...
متن کاملValidation of Satellite Snow Cover Maps
Satellite-derived snow maps from NASA’s Earth Observing System Moderate Resolution Imaging Spectroradiometer (MODIS) have been produced since February of 2000. The global maps are available daily at 500-m resolution, and at a climate-modeling grid (CMG) resolution of 1/20o (~5.6 km). We compared the 8-day composite CMG MODIS-derived global maps from November 1, 2001, through March 21, 2002, and...
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ژورنال
عنوان ژورنال: Journal of Agricultural Meteorology
سال: 1983
ISSN: 0021-8588,1881-0136
DOI: 10.2480/agrmet.38.423