测绘通报 ›› 2025, Vol. 0 ›› Issue (7): 180-184.doi: 10.13474/j.cnki.11-2246.2025.0730

• 测绘地理信息技术应用案例 • 上一篇    

地理信息技术赋能福建省长时序地表温度数据集构建与分析

黎文娥, 赖晓龙, 孙华, 黄连英   

  1. 福建林业职业技术学院交通工程系, 福建 南平 353000
  • 收稿日期:2025-03-25 发布日期:2025-08-02
  • 作者简介:黎文娥(1992—),女,硕士,讲师,主要研究方向为地理信息系统应用和遥感技术等。E-mail:1836682015@qq.com
  • 基金资助:
    福建省中青年教师教育科研项目(JAT220601)

Geographical information technology enabling the construction and analysis of long-term surface temperature dataset in Fujian province

LI Wene, LAI Xiaolong, SUN Hua, HUANG Lianying   

  1. Department of Transportation Engineering, Fujian Forestry Vocational Technical College, Nanping 353000, China
  • Received:2025-03-25 Published:2025-08-02

摘要: 陆地表面温度(LST)是全球和区域尺度地表物理过程的关键参数,维持地气相互作用过程中物质与能量交换平衡。本文基于GIS/RS技术,结合MODIS 8 d LST遥感数据产品(MOD11A2),利用分裂窗算法,通过月合成和年合成构建出福建省2000—2016年长时序地表温度数据集。然后对月合成和年合成的长时间序列LST数据进行分析并探讨了LST的分布及其反演特征。结果表明,福建省的LST约在7月达到最高,约在1月为最低。自2000—2016年福建省的LST呈周期性变化(似于正弦曲线)。空间分布上,福建省的LST空间分布也存在着明显的西低东高、南暖北冷。随着福建省沿海地区经济的快速发展和城市化不断发展,沿海城市地区的LST明显高于山区农村地区。LST分布可能受到气候、地形和土地覆盖类型的影响,地理信息技术分析LST的时空分布特征可以为福建省的区域生态环境保护、可持续发展政策的制定及农作物科学合理区划提供重要的参考依据,最终构建一套较完整的、效果较好的LST时间序列数据集。

关键词: 陆地地表温度, MODIS, 时空变化, 地理信息技术, 福建省

Abstract: Land surface temperature (LST) is a key parameter of land surface physical processes on global and regional scales,linking the heat fluxes and interactions between the ground and atmosphere.Based on GIS/RS,combined with the MODIS 8-day LST products (MOD11A2) from the split-window algorithms,we construct and obtain the monthly and annual LST dataset of Fujian province from 2000 to 2016.Then,Using geospatial information technologies,we analyze the monthly and yearly time series LST data and further investigate the LST distribution and its evolution features.The average LST of Fujian province reaches the highest in July,while the lowest in January.The monthly and annual LST time series present a significantly periodic features (annual and interannual) from 2000 to 2016.The spatial distribution shows that the LST in North and West is lower than South and East in Fujian province.With the rapid development and urbanization of the coastal area in Fujian province,the LST in coastal urban region is significantly higher than that in mountainous rural region.The LST distributions might are affected by the climate,topography and land cover types.The spatio-temporal distribution characteristics of LST using geospatial information technologies could be regarded as crucial evidences in agricultural layout and provides important reference for the formulation of regional ecological environment protection and sustainable development policies in Fujian province.

Key words: land surface temperature, MODIS, spatio-temporal variation, geographic information technology, Fujian province

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