Langton is a coastal city.
Although it is difficult to feel this point while living in Langton City, the downstream of the river that passes through the city is the estuary, and if you follow the river all the way down, you can indeed steer a ship into the sea.
In fact, the past prosperity of Langton City, and even the founding monarch of Victory choosing to establish the capital here, was largely due to the convenient river, making sea trade with other countries of the old world easy.
Langton City used to be one of the most developed cities in Victory's shipbuilding industry. But later, with Victory's developnt, the Royal Shipyard was set up in Puse City, and Langton's shipbuilding industry gradually declined.
Nowadays, it is almost impossible to recognize the estuary of Langton as it once was, with solid embanknts on both sides and buildings everywhere.
If not for seeing the sea at the edge of the embanknt, perhaps no one would think that Langton is truly a coastal city.
Perhaps only with an aerial view, can one see from the shapes of the river and coastline the city's forr appearance.
As for the residents living within Langton City? They probably have long ceased to feel that the city is still by the sea, especially after the construction of the tidal barrier at the estuary. The rise and fall of tides do not affect the river's water level, making it even harder to perceive the city as a coastal one.
But as the White Star lingered above, cold air accompanied its appearance to envelop land and sea, white winds mixed with snowflakes rushed over the land, only then did people once again feel that this city is truly by the sea.
Because a wave at least nearly a hundred ters high was rushing towards Langton City.
"Damn it, I actually forgot about this!" Seeing the approaching tsunami, Perfikot suddenly realized she had forgotten sothing important.
The drop in seawater temperature disrupts ocean currents, scrambling global atmospheric circulation, resulting in a series of climate changes. The most serious and easiest to occur are tropical cyclones.
Warm currents in ocean currents transport hot water from near the equator to high latitudes, cooling the equatorial regions.
If equatorial seawater cannot flow to high latitudes, it causes heat accumulation, raising seawater temperatures.
Rising seawater temperatures heat air above it, causing changes in local atmospheric pressure.
With the ascent of a mass of air, ground pressure drops, outside air flows into the ascending region, and influenced by planetary rotation, the inflowing air begins to rotate.
After the ascending air cools, its moisture condenses and releases heat, further promoting the ascent of lower air and forming stronger rotating currents, eventually developing into tropical cyclones.
The more heat the seawater releases, the larger the tropical cyclone and the stronger its power.
As tropical cyclones upgrade to typhoons or even more powerful super typhoons, the strong winds and sudden changes in pressure can cause abnormal rises and falls of seawater, greatly exceeding normal tide levels in affected sea areas.
This phenonon is known in the original world as a storm surge, also vividly referred to as a storm tsunami.
Normally, storm tsunamis only cause a rise of few or several ters, which is already a huge disaster for humans.
However, if tropical cyclones are large enough, absorbing plenty of heat, and the storm is fast enough, the storm tsunami can far exceed expectations.
A wave nearly a hundred ters high surged toward Langton City.
"What do we do now?" Sanderion's mind was already blank, watching the tsunami crashing down like a mountain, showing none of the composure of a Demigod Level Extraordinary, looking utterly bewildered.
At this ti, she was with Perfikot on the Flying Airship above the estuary, facing this terrifying wave head-on.
Originally, they just ca to observe changes in the outer city after the White Star's appearance, but flying near the estuary, unexpectedly they saw a 'mountain' rushing towards them.
"How can human power fight against nature? Even I have no ans of contending with nature's mighty forces." Perfikot felt deep helplessness, as if her spine was extracted, leaving her languid.
"But what about the people in Langton City?" Sanderion supported Perfikot, who almost fell, and asked her a very vital question.
Facing this question, Perfikot shook her head and said: "It's not a big issue; seawater will flood streets but will not be too deep, and with the storm heading north, the water surface will soon freeze.
Aside from impact at the mont of tsunami, other issues are not major.
Moreover, fortunately, Langton's coastal areas are in the outer city, the inner city is relatively high in elevation, and there's a wall and moat between them, so overall impact won't be too severe."
Upon hearing what Perfikot said, Sanderion felt slightly reassured, but she was still worried and powerless before the approaching tsunami.
"Raise the Flying Airship, we can do nothing more." Perfikot weakly issued a command to the captain, but after biting her lip, she still issued another order: "Send a report to the city, shout and instruct everyone to find refuge at high places, close all entrances to underground shelters imdiately to prevent flooding."
Langton City's underground shelters were built using templates designed by Perfikot; she considered water resistance at inception, only intended to deal with water accumulation from mass rainfall.
But under current circumstances, trusting her design is the only option.
What else can be done? A tsunami nearly a hundred ters, even Ancient Gods, likely have no ans to handle it.
Naturally, the Flying Airship's captain dared not delay, having seen the tsunami like a mountain himself.
While ordering the ship's ascent, he also sent reports and shouted instructions as requested by Perfikot.
As altitude rose, many crew mbers rushed to the ship's sides, watching below, a white line with black seawater behind started devouring Langton's coastline, delving into the city.
Undoubtedly, Langton's estuary beca the first 'breached' area, the forr riverway beca the tsunami's expressway, and the squeeze from both banks heightened the tidal waves, making them more terrifying.
In virtually a blink, the entire lower city was subrged by seawater, transforming into a complete swamp.
Only a few higher grounds in the lower city survived, while everywhere else instantly beca soaked.
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