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Numerical Evaluation of the Impact of Urbanization on Summertime Precipitation in Osaka, Japan
Joint Authors
Shimadera, Hikari
Kondo, Akira
Shrestha, Kundan Lal
Kitaoka, Ken
Inoue, Yoshio
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-16
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This study utilized the Weather Research and Forecasting (WRF) model version 3.5.1 to evaluate the impact of urbanization on summertime precipitation in Osaka, Japan.
The evaluation was conducted by comparing the WRF simulations with the present land use and no-urban land use (replacing “Urban” with “Paddy”) for August from 2006 to 2010.
The urbanization increased mean air temperature by 2.1°C in urban areas because of increased sensible heat flux and decreased mean humidity by 0.8 g kg−1 because of decreased latent heat flux.
In addition, the urbanization increased duration of the southwesterly sea breeze.
The urbanization increased precipitation in urban areas and decreased in the surrounding areas.
The mean precipitation in urban areas was increased by 20 mm month−1 (27% of the total amount without the synoptic-scale precipitation).
The precipitation increase was generally due to the enhancement of the formation and development of convective clouds by the increase in sensible heat flux during afternoon and evening time periods.
The urbanization in Osaka changes spatial and temporal distribution patterns of precipitation and evaporation, and consequently it substantially affects the water cycle in and around the urban areas of Osaka.
American Psychological Association (APA)
Shimadera, Hikari& Kondo, Akira& Shrestha, Kundan Lal& Kitaoka, Ken& Inoue, Yoshio. 2015. Numerical Evaluation of the Impact of Urbanization on Summertime Precipitation in Osaka, Japan. Advances in Meteorology،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1052713
Modern Language Association (MLA)
Shimadera, Hikari…[et al.]. Numerical Evaluation of the Impact of Urbanization on Summertime Precipitation in Osaka, Japan. Advances in Meteorology No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1052713
American Medical Association (AMA)
Shimadera, Hikari& Kondo, Akira& Shrestha, Kundan Lal& Kitaoka, Ken& Inoue, Yoshio. Numerical Evaluation of the Impact of Urbanization on Summertime Precipitation in Osaka, Japan. Advances in Meteorology. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1052713
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052713