Heat balance analysis in urban areas by high-resolution satellite remote sensing

高分辨率卫星遥感城市热平衡分析

• 批准号: 14580101
• 负责人: YAMAGUCHI Yasushi
• 金额: $ 1.86万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14580101/
• 关键词: REMOTE SENSING; HEAT BALANCE; HEAT ISLAND; SURFACE TEMPERATURE; SENSIBLE HEAT; ARTIFICIAL HEAT DISCHARGE; HEAT FLUX; ASTER; リモーセンシング; 土地被覆; 都市化; 植生指標

The heat island effect in urban areas is caused by not only anthropologic heat discharge but also heat balance changes as a result of surface land-cover changes. This study developed a new analysis method that enables us to discriminate these two effects and to evaluate them quantitatively. A heat balance model was modified to be able to distinguish the two components ; the anthropologic sensible heat due to anthropologic heat discharge, and the natural sensible heat due to solar and atmospheric radiation. The model calculates surface heat flux components ; net radiation, ground heat flux, sensible heat flux, and latent heat flux, respectively. The sensible heat flux is proportional to a difference of the surface and atmosphere temperatures. We assumed that the anthropologic sensible heat can be given as a difference between the actually measured sensible heat flux and the modeled sensible heat flux from the solar radiation. By using this model, the heat balance in Nagoya was analyzed. Model inputs were of the parameters from high-resolution satellite remote sensing data such as ASTER and Landsat/ETM+, and the meteorological data such as temperature, solar radiation, and wind speed. As a result, we could obtain reasonable heat balance changes that reflect seasonal air-conditioning demands and solar radiation patterns. Moreover, the sensible heat fluxes of the urban areas were always higher than those of the other land-cover types. Consequently, we concluded that our new method allowed us to estimate anthropologic heat discharge in urban areas, and is quite useful to investigate the heat island effect in urban areas.

城市热岛效应不仅是人类活动的结果，也是地表土地覆盖变化引起的热平衡变化的结果。这项研究开发了一种新的分析方法，使我们能够区分这两种影响，并定量评估它们。一个热平衡模型进行了修改，以能够区分两个组成部分，人类学显热由于人类学的热排放，和自然显热由于太阳和大气辐射。该模式计算地表热通量分量，净辐射，地面热通量，感热通量，潜热通量，分别。感热通量与地面温度和大气温度之差成正比。我们假设人类学的感热可以用实际测量的感热通量和模拟的太阳辐射感热通量之差来表示。利用该模型对名古屋的热量平衡进行了分析。模型输入的参数来自ASTER和Landsat/ETM+等高分辨率卫星遥感数据，以及温度、太阳辐射和风速等气象数据。因此，我们可以得到合理的热平衡变化，反映季节性的空调需求和太阳辐射模式。此外，城市地区的感热通量始终高于其他土地覆盖类型。因此，我们的结论是，我们的新方法使我们能够估计人类学的热排放在城市地区，是非常有用的调查在城市地区的热岛效应。

项目成果

Ichii, K., Yarnaguchi, Y et al.: "Global correlation analysis for NDVI and climatic vanri ables and NDVI trends; 1982 to 1990"International Journal of Remote Sensing. 23. 3873-3878 (2002)

Ichii, K.、Yarnaguchi, Y 等人：“NDVI 和气候变量和 NDVI 趋势的全球相关分析；1982 年至 1990 年”国际遥感杂志。

Katou, S., Yamagichi, Y.: "Surface heat balance analysis in urban areas using remote sensing data"Proc.35th Annual Conference of the Remote Sensing Society of Japan. 7-8 (2003)

Katou, S., Yamagichi, Y.：“利用遥感数据进行城市地区的地表热平衡分析”，日本遥感学会第 35 届年会。

加藤創史, 山口靖, 外岡秀行: "ASTERデータによる都市域の地表面熱フラックスの解析"日本リモートセンシング学会第32回学術講演会論文集. 115-116 (2002)

Satoshi Kato、Yasushi Yamaguchi、Hideyuki Tonooka：“利用 ASTER 数据分析城市地区的地表热通量”日本遥感学会第 32 届学术会议论文集 115-116 (2002)。

Yamaguchi, Y., Naito, C.: "Spectral indices for lithologic discrimination and mapping by using the ASTER SWIR bands"International Journal of Remote Sensing. 24・22. 4311-4323 (2003)

Yamaguchi, Y., Naito, C.：“使用 ASTER SWIR 波段进行岩性识别和绘图的光谱指数”国际遥感杂志 24・22 4311-4323 (2003)。

Begum, S.F., Yamaguchi, Y., et al.: "Estimation of surface temperature by using remote sensing techniques in the NW part of Bangladesh"Geocarto International. 18・3. 41-49 (2003)

Begum, S.F., Yamaguchi, Y., et al.：“利用遥感技术估算孟加拉国西北地区的地表温度”Geocarto International 18・3 (2003)。