کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6344184 | 1620565 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of substrate properties, size, position, sheltering and shading on dew: An experimental approach in the Negev Desert
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
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چکیده انگلیسی
No significant differences were found in the dew amounts condensing on the limestone and the flint cobbles. Smooth Plexiglas surfaces yielded significantly higher amounts than a ragged Plexiglas surface. As for the substratum height and size, the dew amounts increased with height (from 0.7 to 10.0Â cm) and size (from 2.5Â ÃÂ 2.5Â cm to 40Â ÃÂ 40Â cm). However, an increase in the long axis (a-axis) to 20, 30 and 40Â cm while leaving the b-axis constant (at 10Â cm) resulted in only a slight increase in the dew amounts in comparison to a 10Â ÃÂ 10Â cm substratum. While confined to non-sheltered habitats, dew at partially sheltered habitats (such as the margin of a shrub or a cave, the vicinity of a cliff and on 7-cm-high cobble surrounded by 15-cm-high cobbles) was significantly lower than at the exposed habitats. The differences in dew amounts coincided with minute differences in the surface temperatures, explained as resulting from differences in the outgoing nocturnal longwave radiational cooling. The findings may shed light on the dew regime of lithobionts at different microhabitats and upon inconsistent values reported in the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volume 98, Issues 2â4, NovemberâDecember 2010, Pages 378-386
Journal: Atmospheric Research - Volume 98, Issues 2â4, NovemberâDecember 2010, Pages 378-386
نویسندگان
Giora J. Kidron,