干旱区生态环境知识资源中心(Arid): Variations in Surface Albedo Arising from Flooding and Desiccation Cycles on the Bonneville Salt Flats, Utah

Arid

DOI	10.1175/JAMC-D-18-0219.1
	Variations in Surface Albedo Arising from Flooding and Desiccation Cycles on the Bonneville Salt Flats, Utah
	Craft, Kevin M.; Horel, John D.
通讯作者	Craft, Kevin M.
来源期刊	JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
ISSN	1558-8424
EISSN	1558-8432
出版年	2019
卷号	58 期号:4 页码:773-785
英文摘要	Desert playas, such as those in northern Utah, form a landscape often in stark contrast to surrounding mountain ranges due to their minimal topographic relief, lack of vegetation, and saline soils. Dry highly reflective halite surfaces, which make up many of the desert playas in northern Utah, are generally characterized by a surface albedo over 40%. However, their albedo can be reduced abruptly to less than 20% by flooding due to rainfall, runoff from surrounding higher terrain, or surface winds transporting shallow water across the playas. A weather station installed during September 2016 to study the Bonneville Salt Flats (BSF) in northern Utah provides estimates of surface albedo that can be related to cycles of flooding and desiccation of the halite surface. The normalized difference water index (NDWI) derived from the MODIS MOD09A1 land surface reflectance product estimates the fractional coverage of surface water over the BSF. NDWI values computed over 8-day periods from 2000 to 2018 highlight year-to-year and seasonal variations in playa flooding events over the BSF. Periods of playa flooding were observed with both ground-based observations and NDWI with sharp reductions in albedo when the surface is flooded.
英文关键词	Albedo Remote sensing Desert meteorology
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000462603300001
WOS关键词	IMAGING SPECTRORADIOMETER MODIS ; PLAYA ; WATER ; ENERGY ; BREEZES ; IMPACT ; ROLES
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216682
作者单位	Univ Utah, Dept Atmospher Sci, Salt Lake City, UT 84112 USA
推荐引用方式 GB/T 7714	Craft, Kevin M.,Horel, John D.. Variations in Surface Albedo Arising from Flooding and Desiccation Cycles on the Bonneville Salt Flats, Utah[J],2019,58(4):773-785.
APA	Craft, Kevin M.,&Horel, John D..(2019).Variations in Surface Albedo Arising from Flooding and Desiccation Cycles on the Bonneville Salt Flats, Utah.JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY,58(4),773-785.
MLA	Craft, Kevin M.,et al."Variations in Surface Albedo Arising from Flooding and Desiccation Cycles on the Bonneville Salt Flats, Utah".JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY 58.4(2019):773-785.