Tuesday, October 19

Tag: ice

NASA’s observations reveal that the vast ice shelves in Antarctica have broken and icebergs
Economy

NASA’s observations reveal that the vast ice shelves in Antarctica have broken and icebergs

NASA announced on the 13th that the vast ice shelves on the Antarctic Peninsula in the western part of Antarctica broke and separated into icebergs. Confirmed by NASA satellite observations. The separated area is said to cover an area of ​​about 5,800 square kilometers.The ice shelf is a plateau with a flat surface where the ice sheet overhangs the ocean. The broken ice shelf is called “Larsen C” and is located in the northernmost part of the major ice shelves in Antarctica. “Larsen A” on the east coast of the Antarctic Peninsula collapsed in 1995 and “Larsen B” collapsed in 2002, and a large amount of ice melted. After that, researchers in Europe and the United States, such as NASA, continued to observe the situation of Larsen C, and it was pointed out that the cracks had progressed from...
JAXA satellite photographs the Antarctic ice shelf
Economy

JAXA satellite photographs the Antarctic ice shelf

The huge iceberg on the Antarctic Peninsula in the western part of Antarctica was photographed by the Japan Aerospace Exploration Agency (JAXA) land observation technology satellite “DAICHI-2”. It has just been released. From the comparison with the image before separation, it can be clearly seen that the crack that started from the south side of the ice shelf spread to the north and became a huge iceberg.NASA announced on the 13th that it discovered the birth of a huge iceberg due to the separation of ice shelves from the results of satellite observations. According to NASA and JAXA, the area of ​​the new giant iceberg is about 5,800 square kilometers, about the same size as Mie Prefecture. It weighs about 1 trillion tons.The “DAICHI-2” was launched in May 2014 as a successor to the “DAI...
Arctic sea ice causes a sharp decline in summer due to slight slack in early spring
Economy

Arctic sea ice causes a sharp decline in summer due to slight slack in early spring

Arctic sea ice continues to decline. The area of ​​sea ice in summer has nearly halved in the last 40 years. It seems to be the effect of global warming. The Arctic Surveillance and Assessment Program (AMAP), an international organization of researchers involved in the Arctic, warns that ice may disappear completely from the Arctic Ocean in the summer in the late 2030s. Even so, why is the ice floating in the Arctic Ocean so sharply reduced?At ski resorts with snow, it’s so dazzling that you can’t open your eyes without wearing sunglasses and goggles. Snow reflects most of the light coming from the sun.The rate at which the surface of the earth reflects sunlight is called “albedo” in scientific terms. Albedo of fresh snow and sea ice covered with snow is about 80%, and reflects most of the...
“Wall of the 4th day” that hinders the forecast of the thickness of ice in the Arctic Ocean
Economy

“Wall of the 4th day” that hinders the forecast of the thickness of ice in the Arctic Ocean

The weather forecast is convenient. The Japan Meteorological Agency has announced the weather forecast for up to one week ahead, and decides on future actions such as “It will rain in three days, so let’s do the accumulated laundry early.” Useful for.Now, the ice in the Arctic Ocean is decreasing. The area of ​​sea ice in summer has nearly halved in the last 40 years. The effects of global warming are suspected. Ice is white and easily reflects the sun’s rays, so once the temperature rises and the ice decreases, the sun’s rays will be absorbed by the sea. Then, the heat makes the ice easier to melt.The less ice there is in the Arctic Ocean, the easier it will be for ships to pass. That’s why I often hear about the “Northeast Passage” these days. Traveling between the Pacific Ocean and the ...