干旱区生态环境知识资源中心(Arid): Effect of land use change on summertime surface temperature, albedo, and evapotranspiration in Las Vegas Valley

Arid

DOI	10.1016/j.uclim.2021.100966
	Effect of land use change on summertime surface temperature, albedo, and evapotranspiration in Las Vegas Valley
	Saher, Rubab; Stephen, Haroon; Ahmad, Sajjad
通讯作者	Stephen, H (corresponding author), Univ Nevada, Dept Civil & Environm Engn & Construct, 4505 S Maryland Pkwy, Las Vegas, NV 89154 USA.
来源期刊	URBAN CLIMATE
ISSN	2212-0955
出版年	2021
卷号	39
英文摘要	Urban surfaces affect the surface energy budget, which plays a defining role in outdoor water requirements changing an area's evapotranspiration. They also affect thermal comfort levels for humans, animals, and vegetation by causing the surface temperature to vary. This study analyzes the effects of land use change on the surface albedo, land surface temperature (LST), and evapotranspiration (ET) of the arid Las Vegas Valley (LVV). The changes in land use considered include transitions from barren and rural surfaces into urban surfaces covered with residential, commercial buildings, roadways, and turf grass. The impacts of these changes were determined by analyzing trends over the summer periods from 1990 to 2017. Remote sensing data acquired by Thematic Mapper (TM) and Operational Land Imager (OLI) aboard Landsat satellite were used to retrieve various geophysical characteristics, including albedo and LST. The ET was estimated using the Mapping of Evapotranspiration using Internal Calibration (METRIC) model with remote sensing input data. The geophysical characteristic trends, in response to urban land use change, were quantified using Mann Kendall's trend analysis. The results showed that commercial buildings and roadways are the main contributors to increased LST. Land use change from rural to commercial buildings decreased surface albedo by 0.4 +/- 0.01 with a Sen's slope (S) of 0.001-0.003 units/summer/year, and increased temperature by 7 +/- 0.2 K with S = 0.2 and 0.4 K/summer/year. Turf grass removal increased temperatures by 20 +/- 0.3 K, while urbanization, in general, increased LST by 5 +/- 0.3 K. Roadway surfaces, primarily covered with asphalt, were the main contributors to temperature increase of LST 17 +/- 0.1 K and S = 0.2-0.8 K/summer/year, while decreasing albedo by 1 +/- 0.01 with S = 0.001-0.003 units/summer/year. Turf grass development maintained LST in the valley throughout the study period, showing significant ET increase (S = 0.04-0.06 mm/summer/year), with an average increase of 1 +/- 0.07 mm/day. This study can help water managers and urban planners to understand the role of land use change in irrigation water demand and urban thermal comfort.
英文关键词	Land use Change Urban temperature Urban albedo Urban Evapotranspiration
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000702706200009
WOS关键词	MAPPING EVAPOTRANSPIRATION ; ENERGY FLUXES ; DYNAMIC-MODEL ; WATER ; SATELLITE ; IMPACT ; MANAGEMENT ; DEMAND ; COVER ; INDEX
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	Desert Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364812
作者单位	[Saher, Rubab] Desert Res Inst, Div Hydrol Sci, Las Vegas, NV USA; [Stephen, Haroon; Ahmad, Sajjad] Univ Nevada, Dept Civil & Environm Engn & Construct, 4505 S Maryland Pkwy, Las Vegas, NV 89154 USA
推荐引用方式 GB/T 7714	Saher, Rubab,Stephen, Haroon,Ahmad, Sajjad. Effect of land use change on summertime surface temperature, albedo, and evapotranspiration in Las Vegas Valley[J]. Desert Research Institute,2021,39.
APA	Saher, Rubab,Stephen, Haroon,&Ahmad, Sajjad.(2021).Effect of land use change on summertime surface temperature, albedo, and evapotranspiration in Las Vegas Valley.URBAN CLIMATE,39.
MLA	Saher, Rubab,et al."Effect of land use change on summertime surface temperature, albedo, and evapotranspiration in Las Vegas Valley".URBAN CLIMATE 39(2021).