The climate distribution and variation characteristics of temperature and salinity i n the upper surface layer of Sulawesi Sea(117-127°E,0-8°N)were analyzed using Argo T/S profiles of 0-1500 m and XBT temper...The climate distribution and variation characteristics of temperature and salinity i n the upper surface layer of Sulawesi Sea(117-127°E,0-8°N)were analyzed using Argo T/S profiles of 0-1500 m and XBT temperature profiles obtained by Chinese Antarctic scientific investigation.The results show that the temperature and salinity are respectively about 2.5℃-30℃ and 33.2‰-35.1‰ in the Sulawesi sea.Compared with the vertical changes,the T/S horizontal gradients are smaller.The temperatures gradually reduce with the in crease of the depth.The sali nities increase firstly,then decrease,and increase finally with the increase of depth.The salinity has two lower and one higher salinity areas.The whole sea surface shows the characteristics of high temperature and low salinity.T he subsurface temperature is slightly lower with salinity increasing.Middle depths are characterized by high temperature and high salinity.At the depth of 500 m,the temperature and salinity tend to be uniform.And at the bottom,T/S represent lower temperature with higher salinity.Moreover,an obvious thermocline exists at the depth of 50 m-150 m.The thermocline depth in summer is less than 90 m and is about 110 m in winter.The thermocline exists in the deeper depth in April than that of November by XBT observation sections.In the central of Sulawesi Sea,the thermocline is also relatively deeper.展开更多
海洋温度的变化会显著影响水下声传播、生物活动、气象和洋流等现象,温深是反映海洋变化运动规律的基本参数。投弃式温深剖面仪(Expendable Bathythermograph,XBT)、温盐深测量仪(Conductivity Temperature Depth,CTD)、全球海洋实时观...海洋温度的变化会显著影响水下声传播、生物活动、气象和洋流等现象,温深是反映海洋变化运动规律的基本参数。投弃式温深剖面仪(Expendable Bathythermograph,XBT)、温盐深测量仪(Conductivity Temperature Depth,CTD)、全球海洋实时观测网(Array for Real-time Geostrophic Oceanography,Argo)等是目前进行海水温深测量的主要仪器。其中XBT因其现场测量简便、效率高、硬件成本低等特点,正在被大规模使用。本文主要介绍有关海洋温度测量的背景及演化历史,分析对比了国内外相关仪器设备的发展现状,总结了国产化产品还存在的差距和不足,另外对传感器、结构设计、数据通讯传输、数据后处理、可靠性研究等关键技术和研究热点进行了详细介绍,最后对未来无人平台的技术发展路线给出了思路和见解,开展投弃式温深剖面仪的相关技术研究和产品研制对实现国产化有积极的推动意义。展开更多
文摘The climate distribution and variation characteristics of temperature and salinity i n the upper surface layer of Sulawesi Sea(117-127°E,0-8°N)were analyzed using Argo T/S profiles of 0-1500 m and XBT temperature profiles obtained by Chinese Antarctic scientific investigation.The results show that the temperature and salinity are respectively about 2.5℃-30℃ and 33.2‰-35.1‰ in the Sulawesi sea.Compared with the vertical changes,the T/S horizontal gradients are smaller.The temperatures gradually reduce with the in crease of the depth.The sali nities increase firstly,then decrease,and increase finally with the increase of depth.The salinity has two lower and one higher salinity areas.The whole sea surface shows the characteristics of high temperature and low salinity.T he subsurface temperature is slightly lower with salinity increasing.Middle depths are characterized by high temperature and high salinity.At the depth of 500 m,the temperature and salinity tend to be uniform.And at the bottom,T/S represent lower temperature with higher salinity.Moreover,an obvious thermocline exists at the depth of 50 m-150 m.The thermocline depth in summer is less than 90 m and is about 110 m in winter.The thermocline exists in the deeper depth in April than that of November by XBT observation sections.In the central of Sulawesi Sea,the thermocline is also relatively deeper.
文摘海洋温度的变化会显著影响水下声传播、生物活动、气象和洋流等现象,温深是反映海洋变化运动规律的基本参数。投弃式温深剖面仪(Expendable Bathythermograph,XBT)、温盐深测量仪(Conductivity Temperature Depth,CTD)、全球海洋实时观测网(Array for Real-time Geostrophic Oceanography,Argo)等是目前进行海水温深测量的主要仪器。其中XBT因其现场测量简便、效率高、硬件成本低等特点,正在被大规模使用。本文主要介绍有关海洋温度测量的背景及演化历史,分析对比了国内外相关仪器设备的发展现状,总结了国产化产品还存在的差距和不足,另外对传感器、结构设计、数据通讯传输、数据后处理、可靠性研究等关键技术和研究热点进行了详细介绍,最后对未来无人平台的技术发展路线给出了思路和见解,开展投弃式温深剖面仪的相关技术研究和产品研制对实现国产化有积极的推动意义。
