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.

城市地区的热岛效应不仅是由人类学的热量排放引起的，而且由于地面土地覆盖的变化而导致热平衡变化。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效果并定量评估它们。对热平衡模型进行了修改，以便能够区分两个组件。由于人类学热量排放而引起的人类学明智的热以及由于太阳和大气辐射而引起的自然合理热量。该模型计算表面热通量成分；净辐射，地面热通量，明智的热通量和潜热通量。明智的热通量与表面和大气温度的差异成正比。我们假设人类学明智的热可以作为实际测量的明智的热通量与从太阳辐射中建模的明智的热通量之间的差异。通过使用此模型，分析了名古屋中的热平衡。模型输入是高分辨率卫星遥感数据（例如Aster和Landsat/etm+）的参数，以及气象数据，例如温度，太阳辐射和风速。结果，我们可以获得合理的热平衡变化，以反映季节性空调需求和太阳辐射模式。此外，城市地区的明智的热通量总是高于其他土地覆盖类型的热量。因此，我们得出的结论是，我们的新方法使我们能够估计城市地区的人类学热量排放，并且对于研究城市地区的热岛效应非常有用。

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。

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)。

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。

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)。

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)。