气候变化领域集成服务门户(CCPortal): Detection of land-surface-induced atmospheric water vapor patterns

CCPortal

DOI	10.5194/acp-20-1723-2020
	Detection of land-surface-induced atmospheric water vapor patterns
	Marke T.; Löhnert U.; Schemann V.; Schween J.H.; Crewell S.
发表日期	2020
ISSN	1680-7316
起始页码	1723
结束页码	1736
卷号	20 期号:3
英文摘要	Finding observational evidence of land surface and atmosphere interactions is crucial for understanding the spatial and temporal evolution of the boundary layer, as well as for model evaluation, and in particular for large-eddy simulation (LES) models. In this study, the influence of a heterogeneous land surface on the spatial distribution of atmospheric water vapor is assessed. Ground-based remote sensing measurements from a scanning microwave radiometer (MWR) are used in a long-term study over 6 years to characterize spatial heterogeneities in integrated water vapor (IWV) during clear-sky conditions at the Jülich ObservatorY for Cloud Evolution (JOYCE). The resulting deviations from the mean of the scans reveal a season-and direction-dependent IWV that is visible throughout the day. Comparisons with a satellite-derived spatial IWV distribution show good agreement for a selection of satellite overpasses during convective situations but no clear seasonal signal. With the help of a land use type classification and information on the topography, the main types of regions with a positive IWV deviation were determined to be agricultural fields and nearby open pit mines. Negative deviations occurred mainly above elevated forests and urban areas. In addition, high-resolution large-eddy simulations (LESs) are used to investigate changes in the water vapor and cloud fields for an altered land use input. © 2020 Author(s).
语种	英语
scopus关键词	atmospheric moisture; boundary layer; land surface; large eddy simulation; remote sensing; spatial distribution; water vapor
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141549
作者单位	Institute for Geophysics and Meteorology, University of Cologne, Cologne, Germany
推荐引用方式 GB/T 7714	Marke T.,Löhnert U.,Schemann V.,et al. Detection of land-surface-induced atmospheric water vapor patterns[J],2020,20(3).
APA	Marke T.,Löhnert U.,Schemann V.,Schween J.H.,&Crewell S..(2020).Detection of land-surface-induced atmospheric water vapor patterns.Atmospheric Chemistry and Physics,20(3).
MLA	Marke T.,et al."Detection of land-surface-induced atmospheric water vapor patterns".Atmospheric Chemistry and Physics 20.3(2020).