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

Yan Hengqian; Wang Huizan; Zhou Shudao; Liu Jun; Wang Long

doi:10.3969/j.issn.0253-4193.2017.11.012

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Yan Hengqian, Wang Huizan, Zhou Shudao, Liu Jun, Wang Long. 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[J]. Haiyang Xuebao, 2017, 39(11): 128-140. doi: 10.3969/j.issn.0253-4193.2017.11.012

Citation:

Yan Hengqian, Wang Huizan, Zhou Shudao, Liu Jun, Wang Long. 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[J]. Haiyang Xuebao, 2017, 39(11): 128-140. doi: 10.3969/j.issn.0253-4193.2017.11.012

Citation:

Yan Hengqian, Wang Huizan, Zhou Shudao, Liu Jun, Wang Long. 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[J]. Haiyang Xuebao, 2017, 39(11): 128-140. doi: 10.3969/j.issn.0253-4193.2017.11.012

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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

doi: 10.3969/j.issn.0253-4193.2017.11.012

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

Received Date: 2016-08-04
Rev Recd Date: 2017-03-26

Abstract

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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References(35)

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