气候变化领域集成服务门户(CCPortal): A new high spatial resolution low stratus/fog retrieval for the Atacama Desert

CCPortal

DOI	10.1016/j.rse.2019.111445
	A new high spatial resolution low stratus/fog retrieval for the Atacama Desert
	Lehnert L.W.; Thies B.; Bendix J.
发表日期	2020
ISSN	00344257
卷号	236
英文摘要	The Atacama Desert is considered as one of the driest places on Earth. At the coastline, however, small-scale fog oases harbor a specialized vegetation and fauna, living from moisture by fog, which is used by humans to feed water demands of industrial projects. To date, knowledge about fog and low stratus (FLS) clouds as well as their physical properties is limited in that only local observations or spatial products from satellites with coarse resolutions are available generally failing to capture local patterns resulting from the complex topography. Consequently, we provide the first climatology of FLS with 30 m spatial resolution based on over 400 Landsat scenes acquired since 1986. The new product provides valuable estimates of FLS optical and micro-physical properties. FLS over the Pacific Ocean featured cloud optical depth values around 13.5 declining over land to 4.2. Effective radii were around 5.3 μm. Liquid water path was between 71.0 gm−2 over the Ocean and 14.9 gm−2 over land surfaces. The climatologies of the new Landsat product were successfully validated against those of the MODIS cloud property product over homogeneous surfaces. Over areas with heterogeneous topographies, the new product outperforms existing ones with coarse spatial resolutions if compared against in situ measurements. This shows the general need for cloud products with high spatial resolutions in areas where the development of small scale clouds is favored e.g., by a complex topography leading to systematical biases in existing retrievals. © 2019 Elsevier Inc.
英文关键词	Atacama desert; Cloud optical depth; Effective radius; Fog; Landsat; Liquid water path; Low stratus
语种	英语
scopus关键词	Climatology; Clouds; Fog; Image resolution; Optical properties; Topography; Atacama Desert; Cloud optical depth; Effective radius; LANDSAT; Liquid water paths; Low stratus; Landforms; fog; Landsat; MODIS; optical depth; spatial resolution; stratus; Atacama Desert; Chile; Pacific Ocean
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179593
作者单位	Department of Geography, Ludwig-Maximilians-University Munich, Luisenstr. 37, Munich, 80333, Germany; Faculty of Geography, Philipps-University of Marburg, Deutschhausstr. 10, Marburg, 35037, Germany
推荐引用方式 GB/T 7714	Lehnert L.W.,Thies B.,Bendix J.. A new high spatial resolution low stratus/fog retrieval for the Atacama Desert[J],2020,236.
APA	Lehnert L.W.,Thies B.,&Bendix J..(2020).A new high spatial resolution low stratus/fog retrieval for the Atacama Desert.Remote Sensing of Environment,236.
MLA	Lehnert L.W.,et al."A new high spatial resolution low stratus/fog retrieval for the Atacama Desert".Remote Sensing of Environment 236(2020).