Japan Geoscience Union Meeting 2021

Presentation information

[J] Poster

O (Public ) » Public

[O-07] Poster presentations by senior high school students

Sun. Jun 6, 2021 1:45 PM - 3:15 PM Ch.27

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Miwa Kuri(Japan Meteorological Agency), Keiko Konya(Japan Agency for Marine-Earth Science and Technology)

1:45 PM - 3:15 PM

[O07-P55] Differences in fog generation conditions in the Edogawa estuary -Examples of Edogawa-ku and Ichikawa-shi-

*Kenta Torii1, Shohei Nanri1 (1.Ichikawa gakuen Ichikawa senior high school)

Keywords:Fog, Edogawa river

The aim of this research is clarifying the reason why fog of Ichikawa City, Chiba is a little thicker than that of Edogawa City, Tokyo.

Firstly, I checked the conditions for fog to occur, and they turned out to be as follows:
(1)The air contains a lot of water vapor.
(2)The temperature is high.
(3)The altitude is high. (Limited to areas of plains)

Ichikawa City and Edogawa City has geographical continuity that is why I selected Condition 1 as one relevant to this research.

Secondly, I focused on wind as the factor which makes a difference to the amount of water vapor. Examining directions of the winds at various points in southern Kanto on the morning of November 26th, 2020, I found a certain regular pattern of wind, that means, the larger current of wind proved to be. These currents turned out to meet around the area of Ichikawa City and Funabashi City, which Ichikawa City is bordered on the east by, and differ in volumetric humidity and temperature. These differences make fog occur in Ichikawa City firstly.

In conclusion, it is a natural consequence that the fog of Ichikawa City is thicker than that of the other areas including Edogawa City because Ichikawa City is the source of the fog.