Abstract
The coastal front is defined as a local front between warm air associated with an onshore wind and colder air trapped inland. This paper presents some examples of the coastal front in the Kanto plain and describes its climatological features obtained from statistical analyses. Data for eleven years are stratified according to the wind at coastal stations, seasons, weather and time of the day.
According to a composite analysis of surface wind and temperature, coastal fronts are found to be more conspicuous for southerly onshore winds than for northeast winds, from late autumn to winter than in warmer seasons, and in the nighttime than in the daytime if precipitation is absent or limited. A case-by-case analysis reveals that fronts are usually located near the coastline, but tend to be located inland in the warm season, under a strong onshore wind, and in the daytime if precipitation is absent.
In case of widespread precipitation under southerly winds, the precipitation amount increases by several tens of percent at coastal fronts.
