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美国家海洋和大气管理局(NOAA)科学家们证实,实时获得的重要的海流资料可以导致更准确的短期气候预报。 西雅图NOAA太平洋海洋环境实验室的一组研究人员开发了一种声学仪器系统能感测从海表到820英尺(1英尺=0.3048米)深的海流。这种下视声学多普勒海流廓线仪已用于赤道太平洋上一个系泊深海浮标上收集和处理海流资料,每天8小时通过卫星把资料发送到西雅图的实验室。赤道海洋海流输送热量,影响全球大气环流,是评价短期气候变化的关键因子。 自1979年以来,使用一系列悬挂在系泊浮标附近不同深度的机械海流表测量赤道太平洋海流。数据储存在仪表中,但几个月才能分析一次,因为调查船巡视浮标需要时日。
US National Oceanic and Atmospheric Administration (NOAA) scientists have confirmed that important current-derived ocean current data can lead to more accurate short-term climate predictions. A team of researchers at the NOAA Pacific Ocean Environment Laboratory in Seattle developed an acoustic instrumentation system that can sense currents from the sea to 820 feet (1 foot = 0.3048 meters) deep. This down-view Acoustic Doppler current profiler has been used to collect and process ocean current data on a moored deep-sea buoy in the equatorial pacific, transmitting data to satellites in Seattle eight hours a day. Equatorial ocean currents deliver heat and affect global atmospheric circulation, which is a key factor in assessing short-term climate change. Since 1979, a series of mechanical ocean current meters suspended at different depths near the mooring buoys have been used to measure equatorial Pacific currents. The data is stored in the meter, but it can be analyzed only in a few months because it takes time for the survey boat to visit the buoy.