The Trend Inconsistency between Land Surface Temperature and Near Surface Air Temperature in Assessing Urban Heat Island Effects
文献类型：期刊论文
| 作者 | Sun, Tao; Sun, Ranhao ; Chen, Liding
|
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2020-04 |
| 卷号 | 12期号:8页码:1-11 |
| 关键词 | LST SAT air temperature UHI remote sensing |
| 英文摘要 | The credible urban heat island (UHI) trend is crucial for assessing the effects of urbanization on climate. Land surface temperature (LST) and near surface air temperature (SAT) have been extensively used to obtain UHI intensities. However, the consistency of UHI trend between LST and SAT has rarely been discussed. This paper quantified the temporal stability and trend consistency between Moderate Resolution Imaging Spectroradiometer (MODIS) LST and in situ SAT. Linear regressions, temporal trends and coefficients of variations (CV) were analyzed based on the yearly mean, maximum and minimum temperatures. The findings in this study were: (1) Good statistical consistency (R-2 = 0.794) and the same trends were found only in mean temperature between LST-UHI and SAT-UHI. There are 54% of cities that showed opposite temporal trends between LST-UHI and SAT-UHI for minimum temperature while the percentage was 38% for maximum temperature. (2) The high discrepancies in temporal trends were observed for all cities, which indicated the inadequacy of LST for obtaining reliable UHI trends especially when using the maximum and minimum temperatures. (3) The larger uncertainties of LST-UHI were probably due to high inter-annual fluctuations of LST. The topography was the predominant factor that affected the UHI variations for both LST and SAT. Therefore, we suggested that SAT should be combined with LST to ensure the dependable temporal series of UHI. This paper provided references for understanding the UHI effects on various surfaces. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44495]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Sun, Tao,Sun, Ranhao,Chen, Liding. The Trend Inconsistency between Land Surface Temperature and Near Surface Air Temperature in Assessing Urban Heat Island Effects[J]. REMOTE SENSING,2020,12(8):1-11. |
| APA | Sun, Tao,Sun, Ranhao,&Chen, Liding.(2020).The Trend Inconsistency between Land Surface Temperature and Near Surface Air Temperature in Assessing Urban Heat Island Effects.REMOTE SENSING,12(8),1-11. |
| MLA | Sun, Tao,et al."The Trend Inconsistency between Land Surface Temperature and Near Surface Air Temperature in Assessing Urban Heat Island Effects".REMOTE SENSING 12.8(2020):1-11. |
入库方式： OAI收割
来源：生态环境研究中心
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