-This is the 250th original main article of self-driving geography-
Affected by continuous heavy rainfall
The No. 1 flood of 2019 formed in the middle and lower reaches of the Yangtze River
Facing severe floods
The Three Gorges Reservoir will start on the 12th
Gradually reduce outbound traffic
From the 13th, it will be controlled at a daily average of 17,000 cubic meters per second
Alleviate flood control pressure in the Dongting Lake area and the middle and lower reaches of the main stream
▼The world’s largest and most controversial Three Gorges Dam on the Yangtze River, picture by Le Grand Portage
This year along the Yangtze River in southern my country
looks extra cool
Even famous stoves in Chongqing, Wuhan, Changsha, etc.
All turned off
Then here comes the problem
Why is Furnace City basically
Are they all along the Yangtze River?
▼The Yangtze River Basin and the traditional “Four Stoves”, pictured by “China Self-Driving Geography”
There is such a definition in climatology:
in a year
More than 20 days with the highest temperature exceeding 35°C
And there have been high temperature weather above 40 ℃
Such cities are called “stoves”
1
Specialties of the Yangtze River: Furnace City
The term “Stove City”
It first appeared in the period of the Republic of China
Mostly in the Yangtze River Basin
Chongqing, Wuhan, Nanjing, Nanchang
Some people exchanged Nanchang for Changsha
▼Why do they become “stoves”? Picture by “China Self-driving Geography”
Others put Chongqing, Nanjing, Hangzhou
Shanghai, Nanchang, Changsha, Wuhan
Collectively known as the “Seven Furnaces”
There are even new stoves
such as fuzhou
▼See if there is any city you are in, picture by “China Self-driving Geography”
These cities are really hot
Take Wuhan as an example
In 1934 there was a record of 41.3°C
Successfully won the “Furnace Champion” throne for Jiangcheng
this circumstance occurs
because of the Yangtze River Basin
It is on the mysterious 30° north latitude line
It belongs to the subtropical high pressure belt (abbreviation: subtropical high)
controlled arid zone
▼The concentration of unsolved mysteries in the world – the 30° north latitude line, pictured by “China Self-driving Geography”
The subtropical high pressure zone belongs to the “warm constitution”
when it controls an area
downdraft
Clear skies with few clouds and intense air warming
It is easy to cause “high fever” in the area
When meeting the “cold physique” airflow from the north
Fire and water between the two
As soon as we met, we started fighting
Common is the formation of frontal precipitation
▼Summer’s “protagonist” Deputy High is about to start performing, picture by “China Self-driving Geography”
it will rain
The sun will come out in another moment
Humid air with scorching sun
unbearably hot
Not only that
Most of the Yangtze River Basin is located in the
Between 25° and 35° north latitude
Backed by the world’s largest continent
——Eurasia
Facing the world’s largest ocean
– Pacific Ocean
The monsoon formed by the difference between land and sea
Breaking through the layers of subtropical high encirclement
A dry continental climate is
Hot and rainy subtropical monsoon climate
▼The subtropical monsoon climate is distributed in the area south of the Huaihe River in the Qinling Mountains and north of the tropical monsoon climate, which is very suitable for human habitation. Picture by “China Self-driving Geography”
In particular, the Yangtze River Basin is mainly located in the
In low latitudes, mountainous hills or valleys
like the bottom of a cauldron
very poor air flow
Can’t dissipate heat
places like Chongqing
City on the Leeward Slope of the Yangtze River Valley
The river itself is densely covered with high air humidity
The sweltering day keeps making for down the hillside
downward wind heating
Often easily lead to the combustion of combustibles
This kind of weather is called “foehn effect”
▼The humid air managed to reach the top of the mountain to cool down, but when it descended the mountain, it was heated and dried by the sun. The foehn effect can make the leaves of the trees scorched, and the land cracked and caused severe drought.
water removes heat
It’s a pity that the water systems of cities along the Yangtze River are generally not deep
Poor ability to regulate temperature
And the middle and lower reaches are flat
Slow water flow results in poor heat transfer capacity
▼The first bay of the Yangtze River, pictured by VIP member Recreation
At the same time, urban buildings, roads, etc. store and release heat
The temperature in the urban area is significantly higher than that in the suburbs
Once the water temperature rises
Evaporation increases air humidity
dense urban buildings
Smaller winds can’t disperse the moist air mass
Most cities with shallow water systems
Will be superimposed with construction and other factors
Exacerbate the “urban heat island effect”
Easier to raise the temperature
This is why there are many “stoves” along the Yangtze River
▼Comparing the temperature between the city and the suburbs, the heat island effect is quite obvious
2
How did they become furnaces?
every summer
For those who live in the “stove”
Going out is the oven
Walking is Mala Tang
Sitting down is the iron sweep
in this hot weather
When I meet friends, I don’t ask where I’m going
It ‘s about how familiar you are today~
Chongqing, Wuhan, Nanjing, Nanchang
Collectively known as the “Four Traditional Stoves”
They are second only to Turpan in Xinjiang in terms of heat
▼Kubtag Desert, Turpan, Xinjiang, picture by Vined
Except that the high altitude is controlled by the subtropical high in summer
The same factors as “foehn effect”, “heat island effect” and so on
The main causes of the different furnace cities
still slightly different
Chongqing, the Big Brother of the “Stove City”
Its heat is not “blown”
Located on the edge of the Sichuan Basin
Surrounded by mountains, built on the mountain
Poor air circulation and long-term heat build-up
It is also the place where two major rivers (Yangtze River and Jialing River) flow through
High humidity and dense population
The whole Chongqing is like being in a big steamer
▼Chongqing is located in the mountains and hills, and guards the Three Gorges of the Yangtze River. It has been a strategic place since ancient times. The picture is by “China Self-driving Geography”
Nanchang, a city of heroes deep inland
so that it cannot be like Guangzhou and other coastal cities
There are typhoons and oceanic climate cooling
Monsoon can’t get in
Humid air won’t dissipate
Also affected by Poyang Lake
(Large lakes regulate the temperature of surrounding areas)
if summer comes
The continuous high temperature will cause the water temperature to accumulate and rise
Sustained high temperature, muggy, windless, humid
extreme weather
▼The largest freshwater lake in China and one of the most important ecological areas in the world, picture by “China Self-driving Geography”
And Wuhan is a thousand-year-old “river city”
The water area accounts for a quarter of the city’s area
It’s hot like a sauna
A lot of water vapor evaporates
Hot air enveloped the entire city
▼A city that can be freestyle on the water, pictured by “China Self-Driving Geography”
Nanjing has won the essence of “Xia Jiujiu”
“The first nine days of the summer solstice, holding the lupine in hand…”
It can become a stove mainly because the latitude is low
The sun’s radiation is strong
Less precipitation leads to high temperature
3
People at the “Stove”
go out with a towel on
Holding a teapot on a bamboo bed in an old street
Shirtless and ” chatting “ with the neighbors …
These unique ways of escaping the heat
It can be seen everywhere on the streets of the former Wuhan (Wuhan)
▼With air conditioning, Wuhan residents bid farewell to the “bamboo bed array” of the past, picture by Changjiang Daily
In the era without air conditioning
People living in the “Four Furnaces”
one to summer
It’s really booming, in a trance
After all, there is no difference between the high temperature indoors and outdoors.
hot weather
No matter how good the mood is, you will be irritable
so there is
“I’d rather listen to Chengdu people quarrel than Chongqing people”
Both in Sichuan dialect
Compared with the cotton spoken by Chengdu people
Chongqing dialect sounds more aggressive
▼Chongqing Yanzi, how many do you know? Figure bywaterrhhh
High temperature in August is still a main course
People in the Yangtze River Basin eat it but cannot digest it
it’s easy to be impulsive
And they all ran out of the house to get together to cool off
chat chat chat life
We’re done talking, let’s start
Therefore, the first shot of the Wuchang Shouyi of the Revolution of 1911
and ushered in a new era of Chinese revolution
The first shot in Nanchang City
Is it because of impulse?
▼Wuchang Uprising Army Artillery
However, there are other alternative ways
as the former capital
Nanjing is more particular
“Ten li of Qinhuai produces a spring dream, and the six dynasties will meet Jinling.”
As a beautiful scenery in Nanjing
Qinhuai Fengyue in summer
become many literati
A great place to cool off and entertain
▼Ten miles of Qinhuai Fengyue is just right, the picture by is with you all the way
In fact, God still favors these places
He turned these cities into “stoves”
also around
leave a piece of summer resort
Such as Wuhan Jiugong Mountain
One of the birthplaces of Taoism in my country
There is a saying that “people who are steaming in the dog days are about to die, and they will become immortals when they come here to cool down”.
▼The scenery of Jiugong Mountain, picture byliukeqiang55
Chongqing Fuling Wuling Mountain
As a natural summer and cool place in the suburbs
The average temperature in summer is only 19.7°C
▼The breathtaking Great Rift Valley in Wuling Mountain, pictured by Golden Rabbit
Another example is “Little Lushan” Meiling
Located in the western suburbs of Nanchang
Since ancient times, there have been celebrities such as Zhang Jiuling, Wang Anshi, Yue Fei, etc.
Come here especially
▼With the development of the city, Meiling has gradually become a garden in the city, picture byhb59
Since the beginning of summer this year
Our country is always “hot at both ends and cool in the middle”
Even the “stove” is turned off
It is said that the rainy season is playing tricks
So it’s going to be cool for another week
▼Temperature in the last 5 days across the country, picture by National Climate Center
This coolness is for those who are not resistant to heat
but a good thing
so why not now
follow our road book
Heading out together to escape the heat?
-Part of the picture comes from the Internet-
This account is Netease News · Netease account “each has its own attitude” signing account
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