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A decade on from The Great Flood is Bangkok going to slip under the waves for ever?


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On 9/30/2021 at 12:08 AM, Will B Good said:

Yeah, sea level has been rising for at least the past 20,000 years. Ever since the last Glacial Period started melting back. The rise slowed dramatically about 7,500 years ago though. Rising pretty slow now. Only about 0.8 - 3.4mm per year. Depending on year an location. In some places, land is rising, and other places land is sinking. Some places are much further inland now than they were a few hundred years ago. The study of the subject is amazing. 
But what we tend to get is a linear trend. No upwards curvature showing increasing rate. Basically, sea level is rising no quicker now, than when Abraham Lincoln was president. 
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1 hour ago, Catoni said:

Yeah, sea level has been rising for at least the past 20,000 years. Ever since the last Glacial Period started melting back. The rise slowed dramatically about 7,500 years ago though. Rising pretty slow now. Only about 0.8 - 3.4mm per year. Depending on year an location. In some places, land is rising, and other places land is sinking. Some places are much further inland now than they were a few hundred years ago. The study of the subject is amazing. 
But what we tend to get is a linear trend. No upwards curvature showing increasing rate. Basically, sea level is rising no quicker now, than when Abraham Lincoln was president. 
image.jpeg.66f233507329d439abba1c34547dd434.jpeg

image.jpeg.b8320094b1b6a49a642a1614744caacb.jpeg

image.jpeg.05c5c63451f04f88e9ac18a43eda39de.jpeg

image.jpeg.a5adfa5287357ba843c7798cc34b622a.jpeg

So why does the NASA one show an accelerating change?

 

Serious question........I haven't studied or followed any arguments on this topic one way or the other

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10 hours ago, Will B Good said:

So why does the NASA one show an accelerating change?

 

Serious question........I haven't studied or followed any arguments on this topic one way or the other

NOAA tends to use actual sea level gauges on shore locations in the U.S. and information from other governments in the world from their sea level gauges at shore locations also. . NASA uses satellites hundreds of miles above the oceans. 

 

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On 9/29/2021 at 8:53 AM, Catoni said:

Perhaps Bangkok is simply sinking, same like Jakarta, Indonesia. (Sinking as much as 10 inches a year) Jakarta has been pumping all the water out of their aquifer, and built huge heavy buildings. The combination of emptying their underground aquifer and erecting big buildings is making the city sink fast. 
This is happening to many cities in the world. Even Mexico City. Parts of Mexico City are sinking as fast as 20 inches per year. 
AS CALIFORNIA’S ECONOMY skyrocketed during the 20th century, its land headed in the opposite direction. A booming agricultural industry in the state’s San Joaquin Valley, combined with punishing droughts, led to the over-extraction of water from aquifers. Like huge, empty water bottles, the aquifers crumpled, a phenomenon geologists call subsidence. By 1970, the land had sunk as much as 28 feet in the valley, with less-than-ideal consequences for the humans and infrastructure above the aquifers.

https://www.wired.com/story/the-ongoing-collapse-of-the-worlds-aquifers/
  Venice used to have water wells in and around the city. But outlawed all water wells due to aquifer subsidence problems and the city beginning to sink. The aquifer is now slowly being replenished. 
   Indonesia is already seriously looking at building a new capital. 
What is the status of Bangkok’s aquifer?

What is the status of Bangkok’s aquifer?

On your doorstep.......

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Bangkok has multiple problems with water. Yes, pumping from aquifers causes subsidence. Yes. heavy buildings compact the soil and cause subsidence. Bangkok is built on a river delta, and the weight of deposited silt from the river also causes subsidence (this is a geological thing which happens over thousands and millions of years and effects all large rivers with large sediment loads when they meet the sea). So little chance of this stopping, you can only try to slow it down.

 

Finally, you have sea level going up by 3 millimetres per year. Adds up eventually, and also causes coastal erosion - without sea walls, the sea will one day reach Bangkok, erosion is up to 5 metres per year. High tides already flood the Chaophraya river at Bangkok and effect the drinking water supply.

 

It is a slow process, but by 2050 all these issues will be major problems for the city.

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On 10/5/2021 at 11:26 AM, rickudon said:

Bangkok has multiple problems with water. Yes, pumping from aquifers causes subsidence. Yes. heavy buildings compact the soil and cause subsidence. Bangkok is built on a river delta, and the weight of deposited silt from the river also causes subsidence (this is a geological thing which happens over thousands and millions of years and effects all large rivers with large sediment loads when they meet the sea). So little chance of this stopping, you can only try to slow it down.

 

Finally, you have sea level going up by 3 millimetres per year. Adds up eventually, and also causes coastal erosion - without sea walls, the sea will one day reach Bangkok, erosion is up to 5 metres per year. High tides already flood the Chaophraya river at Bangkok and effect the drinking water supply.

 

It is a slow process, but by 2050 all these issues will be major problems for the city.

I would say..very..very slow. So sea level is rising about 23 times SLOWER than the speed your slowest fingernail grows. …if your 3mm per year is correct.  Not exactly a call for alarm. 
     There are other sources that say sea level is rising even less than 3mm per year. It seems to vary year to year and place to place.  In any case..the trend is linear…. And around U.S. shores about the same speed of rise according to N.O.A.A. charts as when Abraham Lincoln was President of the U.S.  Some other places in the world show no rise at all.  And other places seem to show fairly fast sea level fall. Like in Sweden and around Hudson Bay. 

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On 10/1/2021 at 5:15 AM, Stargrazer9889 said:

Lots of higher ground in the Khao Yai area. Move the Capital to there and problem solved.

  Simple easy peasy solution.

Geezer

They moved it from Sukhothai and then from Ayutthaya, as both places are prone to flooding.... just don't seem to learn.

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