Cause and countermeasure of global warming, N02 (5-8)

Typhoons (cyclones, hurricanes, etc.)

Global disasters that grow bigger year by year are also problems

It is getting. A typhoon growing up absorbing the sea surface heat,

A sea surface temperature rise due to global warming 

causes a large-scale

It becomes something. This will give

Depending on the disaster that tens of thousands will die

I am connected.

In particular, sea level rise is a result of the decline of land

It brings in, saying that there will be no place to live,

It also causes big problems.

In addition to typhoons, hundreds of thousands died

Earthquakes etc. occur like every year

It is getting on. Because of global warming

How to scale and generate natural disasters in the past

Maybe it is in an unseen form.

Now, unless we consider the global environment,

What will happen in the future?

Why do not you think about what you can do for the Earth?

1: desertification, 2: air pollution. 

3: Carbon dioxide (greenhouse gas)

4: Ozone depletion (Fluorocarbon problem), 

5: Extreme weather (large scale natural disaster)

6: deforestation (deforestation of the world) world, 

7: red tide (sea water pollution) death of edible fish

8: Acid rain (decrease in lake, sea creatures, death)

5: Extreme weather (large-scale natural disasters): torrential downpour, guerilla heavy rain

Causes of heavy rain in the midst and mechanism

Cumulonimbus clouds developed bring about concentrated torrential rains.

When the warm air near the ground rises, cold air in the sky and

Collision, atmospheric condition becomes unstable.

In order to solve this instability, upper and lower air

Mixed convection occurs.

(Because warm air is light and cold air is heavy)

If the air at this time is damp, go to the sky

Therefore, moisture and moisture contained in the air

It will condense into clouds. This cloud becomes cumulonimbus.

Because the cumulonimbus develops in the vertical direction, in a local narrow area

It pours heavy rain. Rain time is short,

Sometimes it rains a rage of over 100 mm per hour.

In this way torrential downpours will occur,

Among them, what will be different when you get guerrilla heavy rain?

In the first place, clouds are generated and damp to bring rain

Air is necessary. The atmospheric pressure arrangement in the summer is said to be "south high North low"

At the south of Japan is the Pacific High Pressure,

From the south accompanied by the cyclical circulation of its high atmospheric pressure

Warm, moist air will flow in.

This makes the cloud ready for you. Condition ①

Next, in order to generate cumulonimbus even in the clouds,

Cold air (cold) is flowing in the sky

It is necessary translation. From the latitude point of view Japan

Troposphere of a certain place (At the bottom of the atmosphere structure

A layer up to about 10 km in height from the ground in

In the upper sky from the middle of the westerly wind blowing westerly

I am blowing. On the north side of the westerly wind is relatively

There is cold air. This westerly wind

When it comes overhanging to the south side, according to it

The cold air south came into the sky above Japan

It comes. Condition ②

The cumulonimbus that brings about a torrential downpour with all these two conditions

The possibility of occurrence comes out.

Afterwards, due to the rise of warm air near the ground

The occurrence of convection (condition ③) leads to concentrated torrential rain.

In the case of guerrilla torrential rain, especially the occurrence of this condition ③ occurs in the city

If the heat island phenomenon is caused by

It is said to be prone to happen.

Seasonally, the torrential rain is the temperature difference between the ground and the sky

Many occur in heavy summer. Also, in summer

Pacific high-pressure forces covering Japan as a whole

The weak year and the year when cold air entered the sky,

Cumulonimbus cloud occurs frequently. Pacific High Pressure

Even in the late summer when the overhang weakens

After all, concentrated torrential rain is seen many.

In addition to the conditions ① and ② that will receive torrential downpour,

Condition ③ (To rise of warm air near the ground

Occurrence of convection according to the heat island phenomenon

It is becoming easy to happen, it is guerilla heavy rain

It is said that it is accelerating the increase.

Exhaust heat from automobiles and outdoor units of air conditioners,

By concentrating in a narrow area and occurring suddenly

It causes ascending airstream, over the urban area

It leads to the development of cumulonimbus clouds,

It means bringing heavy rain.

Viewed in Tokyo, areas where frequent torrential rains are frequent

It seems there is. One is from Nerima to Itabashi

The area in the east-west direction, the other from Shimokitazawa

Northern-North region across Nakano.

Both of these are the areas surrounding the 7th through 8th rings.

Originally this area, the Seven Clouds, Yakumo Yakushi occur

It was beautiful. Sea breeze from Tokyo Bay (moist atmosphere) and

Sea breeze from Sagami Bay (damp atmosphere) collides

In addition to being a place that is easy to stay,

Vicinity of No. 7 and No. 8 railroad car traffic

So, due to exhaust heat from the car

Heat island phenomenon and automobile exhaust gas

Mixed "suspended particulate matter" promotes the generation of clouds.

Furthermore, not only the damp sea breeze but also the air in the vicinity of Shinjuku

It will also flow into this area,

It is taken into consideration as a cause of cumulonimbus occurrence. Shinjuku Kabukicho and

The atmosphere including the air conditioner waste heat of Shinjuku secondary city center,

By hitting the Shinjuku Nishiguchi skyscraper group by the wind flow

It rises and moves to the west side on the flow of sea breeze.

Those atmospheres are in the east-west direction 

from Nerima to Itabashi

From the area and Shimokitazawa to Nakano in the north-south direction

Separated by the wind direction of the day, etc., circle seven clouds, ring annual clouds

I am generating some cumulonimbus clouds that have been partially involved

It is that it is not.

This is a case in Tokyo, but also in other areas

When guerrilla heavy rain frequently occurs in urban areas,

Such atmospheric flow and heat island phenomenon

It is considered to be the cause of guerilla heavy rain

Is not it?

I am extracting a part of the literature.

Also, when guerrilla torrential rain occurs in the suburbs,

Hot air generated in urban areas flows in,

Coupled with the state of the atmosphere in the sky, the arrangement of atmospheric pressure, etc.

It is said to generate guerrilla heavy rain

That is enough.

Cause and effect of global warming, countermeasures, No 2 (5-8)

Because I am going to write about it too long,

I will stop with this.

Cause, effect and measures of global warming, No 3 (6 - 8)

Also, I will write next time.

6: World deforestation (deforestation),

7: red tide (seawater contamination) death of edible fish

8: Acid rain (decrease in lake, sea creatures, death)