Satellite positioning low-altitude sounding instrument by a full of helium sounding balloons carried off the ground, high altitude interval different height of temperature, wind direction and wind speed change, through the sensor to the receiving system per sent a set of data. This is the first time China in the arctic sounding instrument, cast the apple arctic expedition plan China's third 85 degrees north latitude in arctic over both cast 60 such detection instrumentation.
From China meteorological science institute riken said, is also LuChangGui low-level meteorological condition, detection before China twice the arctic spiders use pens the airships height is 1500 meters, cast records for 1 minute intervals. By contrast, the expedition use satellite positioning low-altitude sounding instrument can obtain more comprehensive data, the accuracy is higher, this to know exactly what the region climate change process is very important.
LuChangGui said, the arctic climate in recent years varied significantly, only the most intuitionistic temperature is concerned, 2003, the end of July to China in early August, the second in the arctic expedition, 80 degrees north latitude area nearby minimum temperatures reached below 12 degrees north latitude, but this year the waters around 85 degrees below zero minimum temperatures not more than 5 degrees Celsius.
LuChangGui points out, China is in the northern hemisphere low-latitude region, cold climate change affects China mainly coming from the north. Therefore, the arctic climate system to China has important influence on climate change. In the arctic cast satellite positioning low-altitude sounding instrument, facilitate monitoring in this region of domain meteorological changes, supplement the terrestrial stations' material, for China to understand the arctic climate change law provides the basis.
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