End of the 40 days of China Ocean research, complete record Super El Nino, observation equipment was recycled-IT information
Comprehensive branch of China Ocean research vessel "Science" was completed on 30th of a 40-day expedition cruise returned to the West coast of Qingdao new home port. This voyage, Chinese scientists have successfully recovered in the Western Pacific had worked for two years in a row of three pressure-reverse echo instrument, which records the last strong El Ni?o phenomenon began, broke out to the end of the entire process.
▲ Docked at the port of Qingdao "scientific" research vessel.
? On October 30, the voyage of Zhou Hui, Chief Scientist at pressure reverse echo instrument is introduced.
Voyage said Zhou Hui, Chief Scientist, pressure-reverse echo through and acoustic signal can get sea water temperature and salinity data, scientists can conclude that changes in sea level and currents. These observational data for research on the El Ni?o phenomenon is of great reference value.
"The origin of El Nino is in the Western Pacific, pressure reverse echo to collect temperature data reflect changes in sea temperatures from El Nino. In addition, the current very large impact on the climate, collect data from pressure reverse echo instrument derived from current data and sea-level change, to the study of the El Ni?o is also crucial. "Zhou Hui said," in addition, pressure reverse ECHO also record the process of transformation from El Ni?o to La Ni?a. ”
Institute of Chinese Academy of Sciences researcher Yuan dongliang introduced three-pressure reverse echo instrument in September 2014, respectively in 4, 6 and 8 degrees north latitude, depth of more than 5000 meters. Reporter in "Science" laboratory, three pressure inverse echo instrument, mounted on the white float about 40 cm in diameter.
? "Scientific" research vessel using temperature-salinity depth finder.
It is understood that this voyage was also China's first recycling in the deep ocean pressure reverse echo instrument.
"Science", section test ship the implementation of is National Science Fund Board 2016 Western Pacific open shared voyage project, and national major science research plans project "global variable warm Xia of marine response and on East climate and offshore storage carbon of effect", and, Chinese Academy of Sciences marine pilot special "tropical Western Pacific Marine system material energy exchange and effect" three a project of joint voyage, Yu September 20 from Qingdao starting.
Yuan dongliang introduction this voyage, temperature and salinity research people deep in the waters near 130 degrees East longitude in large cross section in the full depth of the investigation, more than 5000 meters deep.
In addition, Chinese scientists in three Chinese-made this voyage of underwater glider sea trial. "By the Chinese independently developed three underwater glider, a total of 48 days sailing in the water, one of the longest continuous navigation for 19 days, and all recovered successfully. "Yuan dongliang, said," This shows that China's independently developed underwater gliders to the large-scale use of conditions. ”
中国40天远洋科考结束，完整记录超强厄尔尼诺，观测设备被回收 - IT资讯
中国远洋综合科考船“科学”号30日完成为期40天的科考航次返回位于青岛西海岸新区的母港。本航次中，中国科学家成功回收了在西太平洋连续工作了两年多的三个压力逆式回声仪，它们记录了最近一次超强厄尔尼诺现象从开始、爆发到结束的整个过程。
▲停靠在青岛母港的“科学”号科考船。
▲10月30日，航次首席科学家周慧在介绍压力逆式回声仪。
航次首席科学家周慧说，压力逆式回声仪通过声学信号反射，可以获得海水温度和盐度数据，科学家进而可以得出海平面高度和海流变化情况。这些连续的观测数据对研究厄尔尼诺现象具有重要参考价值。
“厄尔尼诺起源就是在西太平洋，压力逆式回声仪收集的连续温度数据直观反映厄尔尼诺带来的海水温度变化。另外，海流对气候影响非常大，从压力逆式回声仪收集数据中衍生出的海流数据以及海平面变化，对研究厄尔尼诺也至关重要。”周慧说，“另外，压力逆式回声仪还完整记录了厄尔尼诺向拉尼娜转化的过程。”
中国科学院海洋研究所研究员袁东亮介绍，三个压力逆式回声仪于2014年9月布放，分别布放在北纬4度、6度和8度，深度均超过5000米。记者在“科学”号实验室内看到，三个压力逆式回声仪分别装在直径约40厘米的白色浮球内。
▲“科学”号科考船使用的温盐深仪。
据了解，这个航次也实现了中国首次在深海大洋回收压力逆式回声仪。
“科学”号科考船此次执行的是国家自然科学基金委2016年西太平洋开放共享航次项目、国家重大科学研究计划项目“全球变暖下的海洋响应及其对东亚气候和近海储碳的影响”、中国科学院海洋先导专项“热带西太平洋海洋系统物质能量交换及其影响”三个项目的联合航次，于9月20日从青岛出发。
袁东亮介绍，这个航次中，科考人员成功利用温盐深仪在东经130度附近海域开展了全水深的大断面调查，深度超过5000米。
此外，中国科学家还在这个航次进行了三个中国国产水下滑翔机的海试。“由中国自主研制的三个水下滑翔机共在水中航行48天，其中最长的一个连续航行了19天，并且全部回收成功。”袁东亮说，“这说明中国自主研制的水下滑翔机具备大规模使用的条件。”
