The online map of average annual precipitation pH value in China from 1992 to 2015 comes from China Severe Weather and Climate Atlas (1961-2015). This atlas is compiled by the National Climate Center and published by the meteorological publishing house.
This atlas is compiled based on the statistics of national meteorological observation data, including 16 kinds of disastrous weather and climate graphic analysis products affecting China, including typhoon, rain and waterlogging, snow disaster, cold wave, gale, sandstorm, low temperature and cold damage, high temperature, drought, lightning, hail, frost, freezing, fog, haze and acid rain, such as the spatial distribution map of annual and seasonal occurrence frequency, the spatial distribution map of certain characteristic values, the national and regional frequency of the changes over the years (1961-2015), the national and regional frequency of the monthly changes, etc., a total of more than 300 Width.
In addition, the disaster information change maps of major meteorological disasters such as typhoon, rain and waterlogging, low-temperature freezing damage and snow disaster, drought, lightning and hail are compiled, and individual cases of major historical disaster events such as typhoon, rain and waterlogging, sandstorm, low-temperature freezing damage and snow disaster, high temperature and drought are selected. In order to facilitate readers' reading and comprehension, this atlas not only provides a large number of intuitive graphics, but also provides text descriptions of the main features.
This atlas is a reference book for understanding China's disastrous weather and climate. It can be used by business, scientific research, teaching and other personnel in the fields of meteorology, agriculture, water conservancy, geography, education, environment, land and resources, as well as by relevant departments such as disaster prevention and reduction, construction planning and so on.
Acid rain refers to the atmospheric precipitation in the form of rain, snow, hail, etc. whose pH value (pH value is a dimensionless quantity reflecting the pH of atmospheric precipitation, which is equal to the negative logarithm of hydrogen ion concentration) is lower than 5.60.
China's acid rain areas (annual average precipitation pH value is lower than 5.60) are mainly distributed in the East and south of North China, Southeast of Northwest China, most of Huang Huai, Jiang Huai, Jianghan, Jiangnan, South China and southwest. Among them, the heavy acid rain areas (annual average precipitation pH value is lower than 4.50) are mainly located in some areas of Western Chongqing, central Guangdong and Western Zhejiang.
Online map of average spring precipitation pH value in China from 1992 to 2015
Online map of average summer precipitation pH value in China from 1992 to 2015
Online map of average autumn precipitation pH value in China from 1992 to 2015
Online map of average winter precipitation pH value in China from 1992 to 2015
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