基于SODA资料的太平洋及我国周边海域温差能资源时空特征分析

闫恒乾; 王辉赞; 周树道; 刘均; 王龙

doi:10.3969/j.issn.0253-4193.2017.11.012

基于SODA资料的太平洋及我国周边海域温差能资源时空特征分析

doi: 10.3969/j.issn.0253-4193.2017.11.012

1.
国防科技大学气象海洋学院, 江苏南京 211101
2.
国防科技大学气象海洋学院, 江苏南京 211101;国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室, 浙江杭州 310012
3.
南海舰队水文气象中心, 广东湛江 524001
4.
解放军第91329部队, 山东威海 264200

基金项目: 国家自然科学基金青年基金（41206002，41305045，41306010）；国家海洋局第二海洋研究所基本科研业务费专项（JG1406）；中国博士后科学基金（2014M551711）；国家自然科学基金面上项目（41375002）；江苏省自然科学基金面上项目（BK2016461）。

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出版历程
- 收稿日期: 2016-08-04
- 修回日期: 2017-03-26

Analysis on the temporal and spatial characteristics of the thermal energy in the Pacific Ocean and the sea area surrounding China based on SODA data

1.
Institute of Meteorology and Oceanography, National University of Defense Technology, Nanjing 211101, China
2.
Institute of Meteorology and Oceanography, National University of Defense Technology, Nanjing 211101, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
3.
Hydrologic and Meteorological Center of the South Fleet, Zhanjiang 524001, China
4.
No. 91329 Army of PLA, Weihai 264200, China

摘要

摘要: 基于简单海洋数据同化数据集的逐月再分析海温资料，对1971年1月至2010年12月共40年的太平洋及我国周边海域温差能资源的时空特征进行统计分析，得到以下主要结论：（1）温差季节变化特征明显，北半球的20℃等温差线从冬季到夏季可由20°N扩展到40°N，而南半球的温差受季节变化相对较小；温差能有效开采区域集中在30°S~40°N范围内，但纬向分布不均；可近似将气候态平均的20℃等温差线作为全年可开采区域的边界；（2）太平洋绝大部分海域的温差能等价深度呈逐年上升趋势，最大可达近2 m/a；温差能的变异系数具有明显季节变化特征但总体维持在较低水平，有效开采区域之内的变异系数在各季节均低于0.1；（3）我国温差能资源在南海及台湾以东海域最为丰富，其温差维持较高水平，能量密度总体呈逐年上升趋势，能量的稳定性较好且可实现全年有效开采，其最佳利用时间为5-7月，最差利用时间为2-3月；（4）太平洋温差能储量在TW量级，且以2.83 GW/a的趋势递增。
- 温差能 /
- 有效开采区域 /
- 最佳利用时间 /
- 线性趋势 /
- 稳定性 /
- 可开发量
Abstract: Based on the monthly ocean temperature reanalysis data from SODA datasets, this paper makes a statistical analysis on the temporal and spatial characteristic of the thermal energy in the Pacific Ocean and the sea area surrounding China during January 1971 to December 2010. The main conclusions are as follows: (1) the temperature difference between the upper and deep layer has obvious seasonal variations; from boreal winter to summer, the 20℃ iso-temperature-difference line extend from 20°N to 40°N in the Northern Hemisphere, while the variation in the Southern Hemisphere is relatively small; the efficient exploiting area ranges from 30°S to 40°N, of which the zonal distribution isn't even; the climatology 20℃ iso-temperature-difference line can be approximately the boundary of the all-time exploiting area. (2) The equivalent head of thermal energy tends to grow yearly in most areas of the Pacific Ocean with the maximum growth rate of 2 m/a; the variable coefficient of thermal energy has obvious seasonal variations but remains at low level, which is basically lower than 0.1 in the efficient exploiting area regardless of the season. (3) The thermal energy resource in the sea area surrounding China is most abundant in South China Sea and the east of Taiwan Island, where the temperature difference maintains at high level and the energy density is on rise year by year, where the stability of energy is satisfactory and the efficient exploiting time is the whole year, where the best exploiting time is May to July. (4) The available exploitation amount in the Pacific Ocean is on the order of TW and has a rising trend of 2.83 GW/a.
- thermal energy /
- efficient exploiting area /
- best exploiting time /
- linear trend /
- stability /
- available exploitation amount

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