Contribution of urban expansion to surface warming in high-altitude cities of the Tibetan Plateau

Ye, Zhong; Chen, Shuqing; Mo, Haihua; Wang, Weiwen; Yu, Pengfei; Wang, Xuemei; Chuduo, Nima; Ba, Bian

doi:10.1007/s10584-022-03460-6

Cited by 3 publications

(2 citation statements)

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“…Furthermore, the UHI effect is primarily concentrated in the southwestern part of Lhasa and the Linzhou area in the central part. This occurs because the important urban areas of Lhasa are developed along the Lhasa River [38], which is located in the southwestern region of Lhasa, leading to a more pronounced UHI effect relative to the other regions. In recent years, the Lhasa region has experienced rapid economic development, leading to increased density of buildings.…”

Section: Discussionmentioning

confidence: 99%

“…Many scholars have also conducted research on the thermal environment in this area and have reached several conclusions. For instance, it is noted that Lhasa is one of the cities experiencing the most intense warming on the Qinghai-Tibet Plateau [38]. Additionally, urban expansion has a significant impact on the increase in average temperature in this region [39].…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Reconstructed All-Weather Land Surface Temperature for Urban Heat Island Analysis

Zhang,

Meng,

Gou

et al. 2024

Remote Sensing

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With the continuous improvement of urbanization levels in the Lhasa area, the urban heat island effect (UHI) has seriously affected the ecological environment of the region. However, the satellite-based thermal infrared land surface temperature (LST), commonly used for UHI research, is affected by cloudy weather, resulting in a lack of continuous spatial and temporal information. In this study, focusing on the Lhasa region, we combine simulated LST data obtained by the Weather Research and Forecasting (WRF) model with remote sensing-based LST data to reconstruct the all-weather LST for March, June, September, and December of 2020 at a resolution of 0.01° while using the Moderate-Resolution Imaging Spectroradiometer (MODIS) LST as a reference (in terms of accuracy). Subsequently, based on the reconstructed LST, an analysis of the UHI was conducted to obtain the spatiotemporal distribution of UHI in the Lhasa region under all-weather LST conditions. The results demonstrate that the reconstructed LST effectively captures the expected spatial distribution characteristics with high accuracy, with an average root mean square error of 2.20 K, an average mean absolute error of 1.51 K, and a correlation coefficient consistently higher than 0.9. Additionally, the heat island effect in the Lhasa region is primarily observed during the spring and winter seasons, with the heat island intensity remaining relatively stable in winter. The results of this study provide a new reference method for the reconstruction of all-weather LST, thereby improving the research accuracy of urban thermal environment from the perspective of foundational data. Additionally, it offers a theoretical basis for the governance of UHI in the Lhasa region.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%