Projection of "strong wind" events related to recovery from hypoxia in Tokyo Bay, Japan

Keisuke Nakayama, Yasuyuki Maruya, Tosiyuki Nakaegawa, Katsuaki Komai, Kazuki Kokubo, Tetsuya Ishida, Tomonari Okada

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


This study describes the projection of sudden recovery from hypoxia in Tokyo Bay. Three different horizontal resolution of the Meteorological Research Institute Atmospheric General Circulation models (with a 20-km mesh resolution), and eight Coupled Model Intercomparison Project phase 3 (CMIP3 models) outputs were applied to project the occurrence of strong negative (south-west) winds, which enhance rapid recovery from hypoxia in the bay. South-west wind energy, KEw, was successfully reproduced in all models by using bias correction based on a cumulative distribution function from the present day (1980-1998). The MRI-AGCM3.1S with a 20-km mesh resolution suggested an increase in the number of days with the square of southwesterly winds>100 m2 s-2, but the other 10 models showed no significant difference in the future. As a result, it appears likely that recovery from hypoxia will not occur more frequently in the future if we assume that the other meteorological and hydrological conditions remain constant.

Original languageEnglish
Pages (from-to)3280-3291
Number of pages12
JournalHydrological Processes
Issue number23
Publication statusPublished - Nov 15 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Water Science and Technology


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