南非东伦敦港附近海域海洋温盐深数据

通过抛弃式温盐深探头实时采集南非东伦敦港附近海域中的温度、盐度、深度、密度、声速数据实现对海洋环境实时监测。通过对比同一经纬度下不同时间测试数据的差异，分析海洋环境变化情况。将分析的结果应用到实际场景中，为研究海洋物理学、声纳等海域探测设备、船舰等海洋运输作战工具提供数据支撑。利用抛弃式温盐深探头水下部分实时获取随深度变化的温度、电导率数据，以DPSK方式进行信号调制，通过漆泡线传递数据至数据采集模块。对采集到的原始数据以DPSK方式进行信号解调，获取实时深度、温度、电导率数据，进行数据公式推导计算盐度： S=0.008-0.1692*Rt^0.5+25.3851*Rt+14.0941*Rt^1.5-7.0261*Rt^2+2.7081*Rt^2.5+(T-15)/(1+0.0162*(T-15))*0.0005-0.0056*Rt^0.5-0.0066*Rt-0.0375*Rt^1.5+0.0636*Rt^2-0.0144*Rt^2.5; 计算声速： V=1449.2+4.6*T-0.055*T^2+0.00029*T^3+(1.34-0.01*T)*(S-35)+1.6*0.01*D 计算密度： ρ=ds0/(1-(P*10/Kstp)); 其中,T:温度,S:盐度,P:压力,D:深度，V:声速，ρ：密度，Rt:电导率比值。Real-time monitoring of the marine environment is achieved by collecting temperature, salinity, depth, density and sound speed data in the sea area near East London Port, South Africa using an expendable conductivity-temperature-depth (XCTD) probe. By comparing the differences between test data at the same longitude and latitude across different time points, changes in the marine environment are analyzed. The analyzed results are applied to practical scenarios, providing data support for researches in marine physics, marine detection equipment such as sonar, and marine transportation and combat platforms such as vessels. The underwater section of the expendable conductivity-temperature-depth probe is used to acquire temperature and conductivity data varying with depth in real time. The signals are modulated via Differential Phase Shift Keying (DPSK), and the data is transmitted to the data acquisition module through the enameled wire. The collected raw data is demodulated via DPSK to obtain real-time depth, temperature and conductivity data. The salinity is calculated using the following derived formula: $$S=0.008-0.1692cdot R_t^{0.5}+25.3851cdot R_t+14.0941cdot R_t^{1.5}-7.0261cdot R_t^2+2.7081cdot R_t^{2.5}+frac{T-15}{1+0.0162cdot(T-15)}cdot0.0005-0.0056cdot R_t^{0.5}-0.0066cdot R_t-0.0375cdot R_t^{1.5}+0.0636cdot R_t^2-0.0144cdot R_t^{2.5}$$ The sound speed is calculated via the following formula: $$V=1449.2+4.6cdot T-0.055cdot T^2+0.00029cdot T^3+(1.34-0.01cdot T)cdot(S-35)+0.016cdot D$$ The density is calculated via the following formula: $$ ho=frac{ds_0}{1-frac{Pcdot10}{K_{stp}}}$$ Where: $T$ represents temperature, $S$ represents salinity, $P$ represents pressure, $D$ represents depth, $V$ represents sound speed, $ ho$ represents density, and $R_t$ represents conductivity ratio.

搜集汇总

背景与挑战

背景概述

该数据集包含5196条南非东伦敦港附近海域的温盐深数据，通过抛弃式温盐深探头实时采集，涵盖温度、盐度、深度、密度、声速等多种参数，用于海洋环境监测和研究。数据以xlsx格式存储，按需更新，适用于海洋物理学、声纳探测设备及船舰运输等领域的研究。