Change of atmospheric condition in an urbanized area of Japan from the viewpoint of rainfall intensity

The atmospheric condition in an urbanized area of Japan was examined from the viewpoint of a 14-year trend in the rainfall intensity. To cancel the wide-area meteorological phenomena such as a typhoon and a front, the rainfall datasets obtained not only in an urban area but also in a rural area was...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2009-01, Vol.148 (1-4), p.449-453
Main Authors: Aikawa, Masahide, Hiraki, Takatoshi, Eiho, Jiro
Format: Article
Language:English
Subjects:
acid deposition
Acid rain
Air pollution
Approximation
Atmosphere
Atmospheric Protection/Air Quality Control/Air Pollution
Cities
Climate
Cyclonic Storms
Datasets
Earth and Environmental Science
Earth, ocean, space
Ecology
Ecotoxicology
Environment
Environmental Management
Environmental Monitoring
Environmental science
Exact sciences and technology
External geophysics
Heat
Humans
Japan
Meteorology
Monitoring/Environmental Analysis
Outdoor air quality
Precipitation
Public health
Rain
rain intensity
Rainfall intensity
Rural areas
Site classification
Statistical significance
Studies
Temperature
Trends
Typhoons
Urban area
Urban areas
Urbanization
Water in the atmosphere (humidity, clouds, evaporation, precipitation)
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Summary:The atmospheric condition in an urbanized area of Japan was examined from the viewpoint of a 14-year trend in the rainfall intensity. To cancel the wide-area meteorological phenomena such as a typhoon and a front, the rainfall datasets obtained not only in an urban area but also in a rural area was studied. The rainfall datasets collected on a 0.5 mm rainfall basis was used. The rainfall intensity dominantly increased in urban area, while that in rural area neither increased nor decreased. An increasing trend was clearly observed for rainfall with precipitation amounts of 5 and 10 mm. Rainfall with precipitation amounts of 15 and 20 mm showed neither an increasing nor a decreasing trend. The results of this study show that there is a high probability of a connection between the urbanization and the change of rainfall intensity.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-008-0174-0