Spatial and Temporal Inversion of Land Surface Temperature along Coastal Cities in Arid Regions

Remote Sensing

Waleed Zeiada¹  Khaled Hamad¹  Saleh Abu Dabous¹  Rami Al-Ruzouq¹  Abdallah Shanableh¹  Saeed Al-Mansoori²  Mohamad Ali Khalil³  Ratiranjan Jena³  Ghadeer Al-Khayyat³  Mohamed Barakat A. Gibril³  Kamil E. Kaloush⁴ 

[1] Department of Civil and Environmental Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates;Mohammed Bin Rashed Space Center (MBRSC), Dubai 211833, United Arab Emirates;Research Institute of Sciences and Engineering, Sharjah 27272, United Arab Emirates;School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 875306, USA;

关键词: urban heat island;    remote sensing;    GIS;    land surface temperature;    urbanization;    hot climate region;   

DOI  :  10.3390/rs14081893

来源: DOAJ

【 摘 要 】

Climate change is undoubtedly affecting the global weather of the Earth. Rapid human civilization has mainly caused this in the last few decades. This research examined the spatial and temporal land surface temperature (LST) in the United Arab Emirates (UAE) coastal cities located in an arid region that faced massive urbanization over the last 50 years. We estimated the LST using by-products of Landsat and MODIS images covering 2000 until 2020. The assessment of LST was performed in two contexts, i.e., spatially and temporally, covering daytime vs. nighttime during the summer and winter seasons. Additionally, a supervised classification technique was adopted to extract the land use and land cover in the study area from the late 1970s until 2018. Unexpectedly, the results indicated that daytime LST in districts near the coastlines (heavily urbanized areas) are lower than the ones far away from the coast (about 9 °C). This observation represents the spatial LST inversion in the study area. Nevertheless, this difference was not observed during nighttime LST temporally, the daytime LST did not increase significantly during either summer or winter seasons. However, the nighttime LST has increased temporally by about 17% since 2000 (the temporal LST inversion). Both LST inversions could be attributed to the uniqueness of the study area, given that bare land desert was replaced by vegetation, high-rise buildings, and industrial activities. Additionally, the wind breeze blowing from the gulf might potentially contribute to cooling the coastal urban area during the daytime. Furthermore, in-depth zonal statistics were conducted to visualize the effect of land use on LST. The study observed that fully built-up areas with vegetation have lower LST than built-up areas without vegetation or a combination of sand and vegetation. The research outcomes are invaluable for decision-makers and researchers in achieving sustainable urban development.

【 授权许可】

Unknown