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Posts Tagged ‘precipitation’

Various influences in “Global warming” on the weather are observed.
The influence given to an increase and the climate of “Abnormal weather” in many parts of the world might be shown, “Make of the climate extreme”.
It is assumed that the distribution of atmospheric pressure changes because of “Global warming”, and a different weather phenomenon is generated so far.
It is said that even only the weather phenomenon in which the problem is defined will influence an increase of abnormal weather by the meander of the west wind and the climate of Japan.
A cold day happening frequently and all over the world in the tornado decreases by the rise of the seawater temperature in the eastern America and the southeast, and a hot day increases.
The temperature becomes a temperature rise tendency.
Various influences like an increase of the drought-stricken area and the generation of the typhoon that increases the incidence of the heat wave and the heavy rain, and enlarges and an increase in the climax, etc. are forecast.
- Change in precipitation
The following forecasts are done for precipitation though the forecast of the weather also difficultly has the objection.
･The water vapor content of the atmosphere increases, and the average precipitation increases.
･It increases in localized torrential rain and ..opposite.. drought the extension of width to which precipitation changes.
･Collapse of tropical forests zone.
- Rise of sea level
When the temperature rises by “Global warming”, the melt of an ice sheet and a natural glacier is accelerated though it is a rise of the anxious sea level.
The rise in sea levels is generated because the amount of seawater increases.
Rising factor of the surface of the sea is large contribution by the thermal expansion, and, next, is assumed that the melt of the glacier and the ice sheet is the influences in the report in recent years.
It can be said that both will be generated by Global warming.
The rise of 3.3mm a year seems to be observed in the coast part of Japan.
What influence do you exist concretely when the sea level rises?
･Damage to coastal fishing such as sea weed, oysters, and littleneck clams for which brackish water region is necessary
･Measures capital investment such as embankments and waste water pumps in coast part.
･It influences daily life water, industry, and agriculture, etc. mixing of salinity with underground water.

“Global warming” phenomenon causes various, abnormal weathers.
First of all, let’s think about a long-term tendency to precipitation.
Precipitation increases from 0.5 to 1% in most land hit from middle latitude of the northern hemisphere to the high latitude in the past ten years.
Similarly, the precipitation of the subtropical area in the northern hemisphere decreases oppositely by 0.3% every ten years.
Frequency where the heavy rain is generated increases from 2 to as much as 4% in the region hit from middle latitude of the northern hemisphere to the high latitude when becoming the latter half of the 20th century.
It is forecast that steam and precipitation that there will be an influence in “Global warming” in the region in the entire earth in the future are in the increasing tendency.
After 1970, the incidence is still high and El Nino effect that brings the drought and the downpour shows the tendency to which the phenomenon is prolonged compared with 100 years in the past when it is generated by one degree though it is not an especially new weather situation.
As for El Nino effect in recent years, rising width of the seawater temperature is higher though the temperature of seawater indicates the weather situation in which a situation that is 0.5℃ or more higher continues compared with the average year by El Nino effect in tropical eastern Pacific.
Big, abnormal weather is not very generated in this La Nina though it is called La Nina that the seawater temperature is 0.5℃ or more low contrary to El Nino effect.
In the forecast in recent years, it is assumed that the temperature rises in the 21st century, and the abnormal weather phenomenon of an increase of the maximum force of the wind of a water shortage of summer in the region that undertakes a big heavy rain in the range and the region, increases in the downpour, and inside latitude, a large-scale typhoon, and the tropical depression and precipitation etc. is generated.