نتایج جستجو برای: snowfall measurement
تعداد نتایج: 442394 فیلتر نتایج به سال:
Results from the Heinrich Event INtercOmparison (HEINO) topic of the Ice-Sheet Model Intercomparison Project (ISMIP) are presented. ISMIP HEINO was designed to explore internal largescale ice-sheet instabilities in different contemporary ice-sheet models. These instabilities are of interest because they are a possible cause of Heinrich events. A simplified geometry experiment reproduces the mai...
The winter of 1968-69 produced two to three times the amount of precipitation in the Sierra Nevada area, California and Nevada, as the winter of 1969-70. The deuterium content in snow cores collected at the end of each winter at the same sites, which represents the total snowfall of each interval, shows a depletion in 1968-69 of approximately 20 per mil. The higher snowfall in 1968-69 and the d...
Satellite radar altimetry measurements indicate that the East Antarctic ice-sheet interior north of 81.6 degrees S increased in mass by 45 +/- 7 billion metric tons per year from 1992 to 2003. Comparisons with contemporaneous meteorological model snowfall estimates suggest that the gain in mass was associated with increased precipitation. A gain of this magnitude is enough to slow sea-level ris...
February 20, 2015 Type Package Title Machine Learning-based Differential Network Analysis of Transcriptome Data Version 1.1 Date 2013-11-18 Author Chuang Ma and Xiangfeng Wang Maintainer Chuang Ma Depends R (>= 2.15.1), snowfall (>= 1.84-4), igraph (>= 0.6.6), rsgcc (>= 1.0.6), e1071 (>= 1.6-1), randomForest(>= 4.6-7) Imports pROC (>= 1.5.4), ROCR(>= 1.0-5) Suggests big...
Ice-ridge Yedoma terrain is susceptible to vertical surface displacements by thaw and refreeze of ground ice, geomorphological processes mass wasting, erosion sedimentation. Here we explore the relation between a 3 year data set InSAR measurements during season, features in an area Indigirka Lowlands, Northeast Siberia. The geomorphology presented map, based on interpretation high resolution vi...
When it launches next spring CloudSat, a component of the A-Train formation of satellites, will carry the first millimeter wavelength cloud radar in space. In addition to its stated objective of making a global survey of cloud microphysical properties, the CloudSat 94 GHz Cloud Profiling Radar (CPR) is also well-suited to the problem of determining the distribution of light rain and snow that c...
Winter respiration is a quantitatively important, yet variable flux of carbon dioxide (CO2) from soils to the atmosphere. Variability in winter soil respiration may be influenced by the effects of snowfall on microbial communities and their metabolic activities. In this study, we evaluated the importance of snowpack depth on soil respiration and microbial communities in a temperate deciduous fo...
Abstract A methodology is proposed for the study of snowfall, applied to region and autonomous community Castilla y León (Spain). It based on two major pillars: elaboration a Snowfall Catalogue from consultation documentary sources (press) between 1979 2021, which allows cataloging all episodes that occurred October May, synoptic atmospheric dynamics in those 43 years, identifying different typ...
Abstract Extreme snow loads can collapse roofs. This load is calculated based on the ground (that is, water equivalent ground). However, (SWE) measurements are unavailable for most sites, while depth frequently measured and recorded. A new simple practical algorithm was proposed in this study to evaluate SWE by utilizing depth, precipitation data, wind speed, air temperature. For evaluation, cl...
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