Observational study on regional climate of Izu Oshima Island, Tokyo
To examine the regional climate of Izu Oshima Island, Tokyo, we observed precipitation and temperature from June 2009 to September 2010 in various places across the island. Using our observational data, AMeDAS (Automated Meteorological Data Acquisition System) data from the Japan Meteorological Agency and precipitation data from the Tokyo Metropolitan Government Bureau of Construction, we analyzed the altitudinal increase of precipitation and the spatial distribution of temperature associated with the prevailing winds. The rainfall amount increased with altitude due to the altitudinal increase in rainfall frequency, although the rainfall intensity did not increase with altitude. The prevailing wind direction over Izu Oshima Island is northeast (NE) or southwest (SW). When NE-wind days and SW-wind days were selected, the mean temperature in the leeward side of the island was found to be higher than that on the windward side.
- Geographical reports of Tokyo Metropolitan University
Geographical reports of Tokyo Metropolitan University 46 53-62, 2011
Department of Geography, Tokyo Metropolitan University