Arid
DOI10.1007/s11356-021-17347-z
Dynamics of human-induced lakes and their impact on land surface temperature in Toshka Depression, Western Desert, Egypt
Abou Samra, Rasha M.
Corresponding AuthorAbou Samra, RM (corresponding author), Damietta Univ, Fac Sci, Dept Environm Sci, New Damietta 3451, Egypt.
JournalENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
EISSN1614-7499
Year Published2021-11
Abstract in EnglishChanges in land-use/land-cover (LULC) give rise to several environmental problems which modify the microclimate of a region. Therefore, land surface temperature (LST) is a significant environmental variable that is appreciably influenced by LULC changes. The main aim of this research was to quantify the impacts of LULC changes from the drying of Toshka Lakes on LST by remote sensing and geographic information system (GIS) techniques. Landsat series Thematic Mapper (TM) and Operational Land Imager (OLI) satellite images were used to estimate LST from 2001 to 2019. Automated Water Extraction Index (AWEI) was applied to the mosaicked Landsat images to extract water bodies from the research area. Optimized Soil-Adjusted Vegetation Index (OSAVI) was utilized to predict the reclaimed land in the Toshka region until 2019. The kappa coefficient had been involved in this research to assess the accuracy of water extraction. The results indicated a decrease in the lakes by about 1517.79 km(2) with an average increase in LST by about 25.02 degrees C from 2001 to 2019. It was observed that the dried areas of the lakes were converted to bare soil and are covered by salt crusts. The results indicated that the land-use change was a significant driver for the increased LST. The mean annual LST increased considerably by 0.6 degrees C/year from 2009 to 2019. A strong negative correlation between LST and Toshka Lakes area (R-square = 0.98) estimated from regression analysis implied that Toshka Lakes drying considerably affected the microclimate of the study area. Severe drought conditions, soil degradation, and many environmental issues were predicted due to the rise of LST in the research area. The findings of this research focus on the benefits of satellite data for assessing human-induced changes and their impacts on microclimate. There is an urgent need to develop favorable strategies for sustainable environmental management in the Toshka region.
Keyword in EnglishLand surface temperature LULC Automated Water Extraction Index (AWEI) Toshka GIS
SubtypeArticle ; Early Access
Language英语
Indexed BySCI-E
WOS IDWOS:000715013900015
WOS KeywordCOVER CHANGE ; SATELLITE ; WATER ; EVAPORATION
WOS SubjectEnvironmental Sciences
WOS Research AreaEnvironmental Sciences & Ecology
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/367701
Affiliation[Abou Samra, Rasha M.] Damietta Univ, Fac Sci, Dept Environm Sci, New Damietta 3451, Egypt
Recommended Citation
GB/T 7714
Abou Samra, Rasha M.. Dynamics of human-induced lakes and their impact on land surface temperature in Toshka Depression, Western Desert, Egypt[J],2021.
APA Abou Samra, Rasha M..(2021).Dynamics of human-induced lakes and their impact on land surface temperature in Toshka Depression, Western Desert, Egypt.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH.
MLA Abou Samra, Rasha M.."Dynamics of human-induced lakes and their impact on land surface temperature in Toshka Depression, Western Desert, Egypt".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021).
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