气候变化领域集成服务门户(CCPortal): A field experiment to study the three-dimensional flow structure in the Inn Valley, Austria

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DOI	10.1175/BAMS-D-19-0283.1
	A field experiment to study the three-dimensional flow structure in the Inn Valley, Austria
	Adler B.; Gohm A.; Kalthoff N.; Babić N.; Corsmeier U.; Lehner M.; Rotach M.W.; Haid M.; Markmann P.; Gast E.; Tsaknakis G.; Georgoussis G.
发表日期	2021
ISSN	00030007
起始页码	E38
结束页码	E60
卷号	102 期号:1
英文摘要	While the exchange of mass, momentum, moisture, and energy over horizontally homogeneous, flat terrain is mostly driven by vertical turbulent mixing, thermally and dynamically driven mesoscale flows substantially contribute to the Earth–atmosphere exchange in the atmospheric boundary layer over mountainous terrain (MoBL). The interaction of these processes acting on multiple scales leads to a large spatial variability in the MoBL, whose observational detection requires comprehensive instrumentation and a sophisticated measurement strategy. We designed a field campaign that targets the three-dimensional flow structure and its impact on the MoBL in a major Alpine valley. Taking advantage of an existing network of surface flux towers and remote sensing instrumentation in the Inn Valley, Austria, we added a set of ground-based remote sensing instruments, consisting of Doppler lidars, a ceilometer, a Raman lidar, and a microwave radiometer, and performed radio soundings and aircraft measurements. The objective of the Cross-Valley Flow in the Inn Valley Investigated by Dual-Doppler Lidar Measurements (CROSSINN) experiment is to determine the mean and turbulent characteristics of the flow in the MoBL under different synoptic conditions and to provide an intensive dataset for the future validation of mesoscale and large-eddy simulations. A particular challenge is capturing the two-dimensional kinematic flow in a vertical plane across the whole valley using coplanar synchronized Doppler lidar scans, which allows the detection of cross-valley circulation cells. This article outlines the scientific objectives, instrument setup, measurement strategy, and available data; summarizes the synoptic conditions during the measurement period of 2.5 months; and presents first results. © 2020 American Meteorological Society.
英文关键词	Aircraft observations; Atmosphere-land interaction; Boundary layer; Lidars/Lidar observations; Remote sensing; Valley/mountain flows
语种	英语
scopus关键词	Aircraft instruments; Atmospheric boundary layer; Atmospheric thermodynamics; Doppler effect; Flow structure; Large dataset; Large eddy simulation; Meteorological instruments; Microwave devices; Optical radar; Remote sensing; Aircraft measurement; Ground-based remote sensing; Measurement strategies; Microwave radiometers; Scientific objectives; Three-dimensional flow structure; Turbulent characteristics; Two-dimensional kinematics; Landforms
来源期刊	Bulletin of the American Meteorological Society
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177773
作者单位	Karlsruhe Institute of Technology, Karlsruhe, Germany; University of Innsbruck, Innsbruck, Austria; METEX GmbH, Elmshorn, Germany; Raymetrics S.A., Athens, Greece
推荐引用方式 GB/T 7714	Adler B.,Gohm A.,Kalthoff N.,et al. A field experiment to study the three-dimensional flow structure in the Inn Valley, Austria[J],2021,102(1).
APA	Adler B..,Gohm A..,Kalthoff N..,Babić N..,Corsmeier U..,...&Georgoussis G..(2021).A field experiment to study the three-dimensional flow structure in the Inn Valley, Austria.Bulletin of the American Meteorological Society,102(1).
MLA	Adler B.,et al."A field experiment to study the three-dimensional flow structure in the Inn Valley, Austria".Bulletin of the American Meteorological Society 102.1(2021).