期刊
ATMOSPHERIC RESEARCH
卷 64, 期 1-4, 页码 261-271出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/S0169-8095(02)00097-2
关键词
fog; marine stratocumulus; fog water; Atacama desert; remote sensing
A project in northern Chile was undertaken to determine the origin and behaviour of fog in the coastal and inland locations of the Tarapaca Region. In the Pampa del Tamarugal, 50 km from the sea, conditions exist for the formation of radiation fog. Advective fog has been studied on the coast and orographic fog was observed at a few coastal sites near mountain ranges with elevations above 1000 in. Fog water collected by two standard fog collectors (SFC) for 3 1/2 years showed an average flux of 8.5 l m(-2) day(-1) on the coast and 1.1 l m(-2) day(-1) inland 12 km from the coastline. On only a few days in 10 months was water collected at the inland site of Pampa del Tamaragal. GOES satellite images are shown to illustrate the pattern of formation of the stratocumuli cloud over the sea, its approach to the coastline, the entrance of fog by corridors through the coastal range and the presence of radiation fog inland. The results are important for the understanding of fog formation and dissipation along the coastal mountain range and for the recognition of potential sites for the installation of fog water collectors, which can be used as a water source in the Atacama Desert. The results also provide vital information for use in the preservation of the unique ecosystems of the most and desert of the world. (C) 2002 Published by Elsevier Science B.V.
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