本研究开发了一种方法,利用Landsat地表温度产品的时间序列数据,量化美国本土(CONUS)50个城市及其周边区域的城市热岛(UHI)范围和强度。研究采用Landsat分析就绪数据(ARD)中的地表温度数据,量化了1985年至2020年间的地表温度变化。当前研究以年度为基准,评估了与城市发展相关的UHI强度及其变化。在研究期间,两个数据集显示高强度城区的最大地表温度显著上升,而周边非城区未表现出显著趋势。发布的数据集空间分辨率为30米,时间范围为1985年至2020年的年均值。注:虽然作者提供了先前版本,但先前版本中所有城市的数据集均可在4.1.1版本中找到。首次发布于2019年11月1日(由作者提供);修订于2020年8月20日(版本2.0);修订于2021年5月20日(版本3.0);修订于2022年1月20日(版本4.1.1)。
We developed an approach to quantify Urban Heat Island (UHI) extent and intensity in 50 cities of CONUS and its surrounding area by using surface temperature from Landsat surface temperature product in a time series manner. Landsat land surface temperature from Landsat Analysis Ready Data (ARD) were used to quantify surface temperature changes from 1985 to 2020. The current study assessed UHI intensity and its variations associated with urban development in an annual basis. Two datasets, over the study period, show that the maximum surface temperature in the high intensity urban area significantly increased while no significant trend was found in surrounding non-urban areas. These released datasets were spatially in 30 meters resolution and annual averages between 1985 to 2020. NOTE: While a previous version is available from the author, all the datasets for polite cities in previous version can be found in version 4.1.1 First posted - November 01, 2019 (available from author) Revised - August 20, 2020 (version 2.0) Revised - May 20, 2021 (version 3.0) Revised - January 20, 2022 (version 4.1.1)