Spatial patterns of pollen deposition in arctic snow
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analyzing patterns of classroom interaction in efl classrooms in iran
با به کار گیری روش گفتما ن شنا سی در تحقیق حا ضر گفتا ر میا ن آموزگا را ن و زبا ن آموزا ن در کلا سهای زبا ن انگلیسی در ایرا ن مورد بررسی قرار گرفت. ا هداف تحقیق عبا رت بودند از: الف) شنا سا ئی سا ختارهای ارتبا ط گفتا ری میا ن معلمین و زبا ن آموزا ن ب) بررسی تا ثیر نقش جنسیت دبیرا ن و زبا ن آموزان بر سا ختا رهای ارتبا ط گفتا ری میا ن آنها پ) مشخص کردن اینکه آ یا آموزگاران غا لب بر این ارتبا ط گف...
Spatial-temporal Patterns of Snow Cover in Western Canada
Snow cover is often measured as snow water equivalent (SWE), which refers to the amount of water stored in a snow-pack that would be available upon melting. Snow cover and SWE represent the source of local snow melt release, and are sensitive to regional and global atmospheric circulation, and changes in climate. Monitoring SWE using satellite-based passive microwave radiometry has provided nea...
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The spatial variability of snow stability presents a challenge to avalanche workers and scientists attempting to assess avalanche danger. Recent research has demonstrated, and attempted to explain, snowpack and snow stability variations over individual slopes. However, these studies have provided single snapshots of an exceedingly dynamic system instead of investigating stability variations ove...
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UV albedo of arctic snow in spring O. Meinander, A. Kontu, K. Lakkala, A. Heikkilä, L. Ylianttila, and M. Toikka Finnish Meteorological Institute, P.O. BOX 503, 00101 Helsinki, Finland Radiation and Nuclear Safety Authority, P.O. Box 14, 00881, Helsinki, Finland Toikka Engineering Ltd., Hannuntie 18, 02360 Espoo, Finland Received: 3 January 2008 – Accepted: 9 January 2008 – Published: 29 Februa...
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The dynamics of snow erosion, transport and deposition due to the action of wind is still a controversial topic. Experts do not all agree on the mechanisms involved in this process and the eld remains rather empirical compared to other domain of science. We propose a new description of the phenomenon, based on a simple and intuitive model in which wind and snow \particles" are the basic compone...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 2001
ISSN: 0148-0227
DOI: 10.1029/2000jd900708