| Project/Area Number |
04680246
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
自然地理学
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| Research Institution | Joetsu University of Education |
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Principal Investigator |
NAKAGAWA Kiyotaka Joetsu University of Education, Division of Science, Associate Professor, 学校教育学部, 助教授 (70115252)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1993: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1992: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | urban climate / sky view-factor / satellite inferred surface albedo / satellite remote sensing |
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| Research Abstract |
The present study developed the systems both for calculating the sky view-factor from a fish-eye lens image and for inferring the surface albedo from LANDSAT/MSS data, and applied them to investigation of the relationships between the distributions of the sky view-factor and surface albedo in the Takada area, Niigata Prefecture, Central Japan. As a result, it was shown that there is a trend toward lower surface albedo with decreasing sky view-factor, and that the surface temperature is higher in the urbanized area with smaller sky view-factor and lower surface albedo. These facts suggests that the decrease in the sky view-factor due to urbanization results to occurrence of urban heat island.
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