Shallow Katabatic Flow in a Complex Valley: An Observational Case Study Leveraging Uncrewed Aircraft Systems
Shallow Katabatic Flow in a Complex Valley: An Observational Case Study Leveraging Uncrewed Aircraft Systems
复制标题
复杂山谷中的浅层下降流:利用无人驾驶飞机系统的观测案例研究
DOI:
10.1007/s10546-022-00783-w
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发表时间:
2023
影响因子:
4.3
通讯作者:
Boer, Gijs de
中科院分区:
文献类型:
--
作者:
Bailey, Sean C.;Smith, Suzanne Weaver;Sama, Michael P.;Al-Ghussain, Loiy;Boer, Gijs de
Multiple fixed-wing and multirotor uncrewed aircraft systems were deployed to measure the early morning katabatic flow along a valley as part of the lower atmosphere profiling studies at elevation a remotely-piloted aircraft team experiment (LAPSE-RATE) campaign. The valley’s topography was that of a narrow canyon emerging into a broader shallow-sloped valley, allowing for an assessment of the suitability of one-dimensional approximations for the broad, flat part of the valley. The one-dimensional integral model predicts growth in the katabatic layer with downslope distance, which was not observed in the broader portions of the valley. Instead, observations revealed thinning of the katabatic layer at the valley centreline, coinciding with oscillatory behavior with a period between 30 and 60 min. These features were attributed to strong asymmetry and three-dimensional features initiating in the narrow part of the valley. These features produced initial conditions upstream of the broad slope flow that were not captured by the one-dimensional model.
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影响因子:
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作者:
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Price J
DOI:
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期刊:
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DOI:
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期刊:
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