Abstract The intensification of land surface temperature (LST) is a consequence of changes in land use land cover (LULC). Variation of LST and LULC can be extracted from satellite images in different spatial and temporal resolutions. Thus, in the present study, we have used remote sensing and GIS techniques to quantify the land surface temperature variation over different land use land cover classes from 1990 to 2019 using Landsat data in Pune city. Furthermore, the effect of LULC changes on seasonal land surface temperature modification over the urbanized area is also assessed in this study. The result suggests an overall increase of built-up area from 116.6 km2 in 1990 to 166.9 km2 in 2019, witnessing a 43.1% rise during the study period, while the other LULC classes show a decreasing trend, most significantly by agriculture (40.8%) followed by scrubland (37.1%), fallow land (22%), water body (11.1%) and vegetation (2.8%). The 2009–2019 decade was found to be most significant in terms of change in LULC aerial extent over the city as compared to the other two decades (1990–1999 and 1999–2009). The overall mean land surface temperature over the city shows an increasing trend during the summer season (5.8%) and decreasing in the winter season (12.4%) from 1990 to 2019. The change in mean LST over different LULC classes shows a significant increasing and positive trend during the summer season as compared to the negative and decreasing trend of the winter season. The mean LST over agriculture, shrub land, water body, and fallow land shows an increasing trend as compared to the built-up area during both summer and winter season from 1990 to 2019. Furthermore, the study also confirms a higher LST over the surrounding rural area by 1.4 °C, as compared to the city urban area, which suggests the occurrence of the urban cool island over the city. The results of the present study will be very helpful for an urban planner and policymakers to evaluate the current urbanization status and improve their decisions to make cities better and sustaining in the future.

中文翻译：

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评估土地利用土地覆盖变化对印度浦那市地表温度的影响

摘要 地表温度（LST）的加剧是土地利用土地覆盖（LULC）变化的结果。可以从不同空间和时间分辨率的卫星图像中提取 LST 和 LULC 的变化。因此，在本研究中，我们使用遥感和 GIS 技术，利用浦那市的 Landsat 数据，量化了 1990 年至 2019 年不同土地利用土地覆盖类别的地表温度变化。此外，本研究还评估了 LULC 变化对城市化地区季节性地表温度变化的影响。结果表明，建成区总面积从 1990 年的 116.6 平方公里增加到 2019 年的 166.9 平方公里，在研究期间增加了 43.1%，而其他 LULC 类别则呈下降趋势，以农业最为显着 (40. 8%) 其次是灌木丛 (37.1%)、休耕地 (22%)、水体 (11.1%) 和植被 (2.8%)。与其他两个十年（1990-1999 和 1999-2009）相比，2009-2019 十年在城市 LULC 空中范围的变化方面最为显着。1990—2019年全市地表平均温度总体呈夏季上升（5.8%）、冬季下降（12.4%）的趋势。与冬季的负面和下降趋势相比，夏季呈正趋势。1990-2019年夏、冬两季，农业、灌丛地、水体和休耕地的平均LST与建成区相比均呈上升趋势。此外，该研究还证实，与城市市区相比，周边农村地区的 LST 高 1.4 °C，这表明城市上空出现了城市凉岛。本研究的结果将非常有助于城市规划者和政策制定者评估当前的城市化状况并改进他们的决策，以使城市在未来变得更好和可持续。