歐盟探測土壤濕度和海水鹽度的衛星即將發射
文章來源:未知 文章作者:meng 發布時間:2009-10-30 00:32 字體: [ ]  進入論壇
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A new European Earth observation satellite will be launched in the early hours of Monday morning (2 November 2009) from the Plesetsk Cosmodrome in northern Russia. The European Space Agency Soil Moisture and Ocean Salinity1 (SMOS - pronounced SMOSS) satellite aims to measure both moisture(潮濕,濕氣) levels in the Earth's soils and the saltiness(堿度) (salinity鹽濃度,鹽分) of the surface waters of the world's oceans from space for the very first time. British scientists and engineers have been involved in the mission from the start.

Global measurements of salinity and soil moisture will improve our understanding of how water is transported around the Earth, and how it circulates around(圍繞……旋轉) the oceans, and lead to more accurate weather forecasts and climate simulations(氣候模擬).

Professor Meric Srokosz from the National Oceanography Centre in Southampton, who was part of the international team that first proposed the mission in 1998, says: "The temperature and salinity of the water in the oceans determine its density2, variations in which are important in driving ocean currents. We've been making salinity measurements from ships for many years, but with SMOS we will be able to get a global picture every few days."

"The oceans play a major role in the climate system and possible future changes in currents are important as the oceans interact with(與……相互作用) the atmosphere, taking up, releasing and re-distributing heat and freshwater. These interactions are key processes affecting both weather and climate," he adds.

Professor Robert Gurney from the University of Reading and the National Centre for Earth Observation, who is working on the mission, says: "SMOS will give us global measurements of soil moisture for the very first time. The mission itself is very challenging because it is the first of its type, and allows us to look at a key area of the planet's water cycle. Soil moisture is important for understanding and predicting floods and droughts, and for predicting the future climate."



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1 salinity uYvx9     
n.鹽分;咸度;鹽濃度;咸性
參考例句:
  • In the sea water sampled the salinity is two parts per thousand.在取樣的海水中,鹽度為千分之二。
  • In many sedimentary basins the salinity of the formation water increases with depth or compaction.在許多沉積盆地中,地層水的含鹽量隨深度或壓實作用而增高。
2 density rOdzZ     
n.密集,密度,濃度
參考例句:
  • The population density of that country is 685 per square mile.那個國家的人口密度為每平方英里685人。
  • The region has a very high population density.該地區的人口密度很高。
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