長野市における夜間気温分布と天空率, 風の関係 [in Japanese] The Relation of Sky View Factors and Wind to Nocturnal City Temperatures in Nagano City [in Japanese]
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Air temperature distributions at night in Nagano city were measured in 1996. The population of Na-gano city is about 350, 000. The measurements were done a total of 27 times at each of 47 points by the automobile traverse method. Other meteorological element data used were from measurements of the Nagano Local Meteorological Observatory. Sky view factors c in each point were measured with fisheye photographs. The results were as follows:<br> (1) As the sky view factors increased, night-time city temperatures decreased on November 3 with clear skies and wind of 0.7m/s, which was the weakest during this research. But in 14 cases when wind speed was less than 1.5m/s, the largest correlation coefficient between city temperature ΔT and ∅ was 0.4, and so this relation seemed to be irrelevant. It was also suggested that this relation did not depend on the amount of cloud cover.<br> (2) The effect of wind on city temperature distributions was confirmed in the expansion of warm areas. But the leeward shift of point which showed the maximum temperature was not observed.
- Geographical review of Japan, Series B.
Geographical review of Japan, Series B. 71(6), 436-443, 1998-06-01
The Association of Japanese Geographers