基于融合遥感数据的广东沿岸温度锋面的季节变化研究*

doi:10.11978/2016125

Abstract

Abstract:

Based on the Operational Sea Surface Temperature and Sea Ice Analysis (OSTIA) data in 2015, we analyzed the seasonal variation and genesis mechanisms of thermal fronts in Guangdong coastal zone. The Guangdong coastal thermal fronts are strong in winter and weak in summer. In the eastern Guangdong coastal zone, thermal fronts are seen all year round, while in the western Guangdong coastal zone, thermal fronts disappear in summer. In the Pearl River estuary zone, thermal fronts are associated with the Pearl River plumes, which extend east northward in summer and southward in autumn. We suggest wind speed play important roles in the genesis and disappearance of these thermal fronts. Using a simple model, we find that monsoon influences the front strength through air-sea turbulent heat fluxes. Under southwesterly (northeasterly) wind condition, warm and wet (cold and dry) air mass could decrease (increase) the latent heat release near the cold coastal zone, leading to a temperature increase in the cold zone, and finally the front disappears.

Key words: thermal front, Guangdong coastal zone, temporal and spatial variation, river plume

Chunhua QIU, Yongsheng CUI, Shiqi HU, Dan HUO. Seasonal variation of Guangdong coastal thermal front based on merged satellite data[J].Journal of Tropical Oceanography, 2017, 36(5): 16-23.

Figures/Tables 8

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

References 25

[1]	陈俊昌, 1983. 南海北部冬季海面温度实时分布特征的若干解译[J]. 海洋学报, 5(3): 391-395.
[2]	李立, 郭小钢, 2000. 台湾海峡南部的海洋锋[J]. 台湾海峡, 19(2): 147-156.
	LI LI, GUO XIAOGANG, 2000. Oceanic fronts in southern Taiwan Strait[J]. Journal of Oceanography in Taiwan Strait, 19(2): 147-156.
[3]	刘秦玉, 李薇, 徐启春, 1997. 东北季风与南海海洋环流的相互作用[J]. 海洋与湖沼, 28(5): 493-502.
	LIU QINYU, LI WEI, XU QICHUN, 1997. Interaction between the northeast monsoon and ocean circulation in South China Sea[J]. Oceanologia et Limnologia Sinica, 28(5): 493-502 (in Chinese).
[4]	罗琳, 王东晓, 刘赟, 等, 2003. 北部湾温度锋的季节与年际变化[J]. 热带海洋学报, 22(4): 60-67.
	LUO LIN, WANG DONGXIAO, LIU YUN, et al, 2003. Seasonal and interannual variabilities of thermal fronts in Beibu Gulf, South China Sea[J]. Journal of Tropical Oceanography, 22(4): 60-67 (in Chinese).
[5]	邵连军, 张红雷, 张春华, 等, 2015. 基于海温遥感资料的海洋锋检测方法[J]. 海洋测绘, 35(2): 42-44, 51.
	SHAO LIANJUN, ZHANG HONGLEI, ZHANG CHUNHUA, et al, 2015. A method for detecting the oceanic front using remotely sensed sea-surface temperature[J]. Hydrographic Surveying and Charting, 35(2): 42-44, 51 (in Chinese).
[6]	王磊, 2004. 南海北部陆架区域的海洋锋及锋面涡旋研究[D]. 青岛: 中国海洋大学.
	WANG LEI, 2004. A study of fronts and frontal eddies in the northern shelf region of the South China Sea[D]. Qingdao: Ocean University of China (in Chinese).
[7]	薛存金, 苏奋振, 周军其, 2007. 基于小波分析的海洋锋形态特征提取[J]. 海洋通报, 26(2): 20-27.
	XUE CUNJIN, SU FENZHEN, ZHOU JUNQI, 2007. Extraction of ocean fronts based on wavelet analysis[J]. Marine Science Bulletin, 26(2): 20-27 (in Chinese).
[8]	杨海军, 刘秦玉, 1998. 南海上层水温分布的季节特征[J]. 海洋与湖沼, 29(5): 501-507.
	YANG HAIJUN, LIU QINYU, 1998. The seasonal features of temperature distributions in the upper layer of the South China Sea[J]. Oceanologia et Limnologia Sinica, 29(5): 501-507 (in Chinese).
[9]	赵宝宏, 刘宇迪, 赵加华, 等, 2011. 南海海洋锋季节分布特征初探[C]//第28届中国气象学会年会——S17第三届研究生年会. 厦门: 中国气象学会: 1-16.
[10]	朱凤芹, 谢玲玲, 成印河, 2014. 南海温度锋的分布特征及季节变化[J]. 海洋与湖沼, 45(4): 695-702.
	ZHU FENGQIN, XIE LINGLING, CHENG YINHE, 2014. Distribution and seasonal variations of temperature front in the South China Sea[J]. Oceanologia et Limnologia Sinica, 45(4): 695-702 (in Chinese).
[11]	庄伟, 2004. 粤东和越南沿岸上升流的分布特征及形成机制[D]. 厦门: 厦门大学.
	ZHUANG WEI, 2004. Study of distribution and generating mechanism of eastern Guangdong and Vietnam Coastal upwelling[D]. Xiamen: Xiamen University (in Chinese).
[12]	BELKIN I M, CORNILLON P C, SHERMAN K, 2009. Fronts in large marine ecosystems[J]. Progress in Oceanography, 81(1-4): 223-236.
[13]	DONLON C J, MARTIN M, STARK J, et al, 2012. The operational sea surface temperature and sea ice analysis (OSTIA) system[J]. Remote Sensing of Environment, 116: 140-158.
[14]	GAN JIANPING, LI LI, WANG DONGXIAO, et al, 2009. Interaction of a river plume with coastal upwelling in the northeastern South China Sea[J]. Continental Shelf Research, 29(4): 728-740.
[15]	JING ZHIYOU, QI YIQUAN, DU YAN, et al, 2015. Summer upwelling and thermal fronts in the northwestern South China Sea: Observational analysis of two mesoscale mapping surveys[J]. Journal of Geophysical Research: Oceans, 120(3): 1993-2006, doi: 10.1002/2014JC010601.
[16]	JING ZHIYOU, QI YIQUAN, FOX-KEMPER B, et al, 2016. Seasonal thermal fronts on the northern South China Sea shelf: Satellite measurements and three repeated field surveys[J]. Journal of Geophysical Research: Oceans, 121(3): 1914-1930.
[17]	OLSON D B, HITCHCOCK G L, MARIANO A J, et al, 1994. Life on the edge: marine life and fronts[J]. Oceanography, 7(2): 52-60.
[18]	OU SUYING, ZHANG HONG, WANG DONGXIAO, et al, 2007. Horizontal characteristics of buoyant plume off the pearl river estuary during summer[J]. Journal of Coastal Research, 23(1): 652-657.
[19]	QIU CHUNHUA, WANG DONGXIAO, KAWAMURA H, et al, 2009. Validation of AVHRR and TMI-derived sea surface temperature in the northern South China Sea[J]. Continental Shelf Research, 29(20): 2358-2366.
[20]	QIU CHUNHUA, WANG DONGXIAO, HE ZHIGANG, et al, 2012. Seasonal variability of chlorophyll a fronts in the Luzon Strait based on satellite observations[J]. Aquatic Ecosystem Health & Management, 15(1): 46-52.
[21]	QIU CHUNHUA, KAWAMURA H, MAO HUABIN, et al, 2014. Mechanisms of the disappearance of sea surface temperature fronts in the subtropical north Pacific Ocean[J]. Journal of Geophysical Research: Oceans, 119(7): 4389-4398.
[22]	QIU CHUNHUA, CUI YONGSHENG, REN JIE, et al, 2016. Characteristics of the surface mixed layer depths in the northern south china sea in spring[J]. Journal of Oceanography, 72(4): 567-576.
[23]	SHIMADA T, SAKAIDA F, KAWAMURA H, et al, 2005. Application of an edge detection method to satellite images for distinguishing sea surface temperature fronts near the Japanese coast[J]. Remote Sensing of Environment, 98(1): 21-34.
[24]	WANG DONGXIAO, LIU YUN, QI YIQUAN, et al, 2001. Seasonal variability of thermal fronts in the northern South China Sea from satellite data[J]. Geophysical Research Letters, 28(20): 3963-3966.
[25]	YUAN JINNAN, WANG DONGXIAO, LIU CHUNXIA, et al, 2016. Validation of microwave-infrared, tropical rainfall measuring mission microwave imager and advanced microwave scanning radiometer-earth observing system and WindSat-derived sea surface temperatures in coastal waters of the northern South China Sea[J]. Aquatic Ecosystem Health & Management, 19(3): 260-269.

Seasonal variation of Guangdong coastal thermal front based on merged satellite data

RichHTML

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 8

References 25

Related Articles 6

Metrics

Comments

Recommended 0

[1]	TANG Chaoli, TAO Xinhua, WEI Yuanyuan, DAI Congming, WEI Heli. Spatiotemporal modal analysis and prediction of surface temperature in East Asia and the Western Pacific^* [J]. Journal of Tropical Oceanography, 2022, 41(6): 183-192.
[2]	YANG Wei, DONG Yuan, ZU Tingting, LIU Changjian, XIU Peng. Distribution of Chlorophyll-a and its influencing factors in the northern South China Sea in summer [J]. Journal of Tropical Oceanography, 2019, 38(6): 9-20.
[3]	Shibing ZHU,Danni HU,Huiling ZHANG,Chunhua ZENG,Zhehua LI,Zhiqiang LI. Analysis of short-term temporal and spatial changes and sedimentary dynamics at the middle section of Haikou Bay Beach ^* [J]. Journal of Tropical Oceanography, 2019, 38(5): 77-85.
[4]	Zeting XU, Shiyu LI, Jiatang HU, Siying WANG, Bin WANG, Mingxian GUO, Bingxu GENG. Summer phytoplankton responses to upwelling and river plume in northern South China Sea [J]. Journal of Tropical Oceanography, 2018, 37(6): 92-103.
[5]	Junpeng ZHAO, Yihan LI, Wenping GONG. The seasonal and sporadic variation of the spreading of a small tropical river plume and its associated dynamics [J]. Journal of Tropical Oceanography, 2017, 36(4): 67-76.
[6]	YANG Wei,LUO Lin,GAO Yong-li,ZU Ting-ting,ZHOU Wei,WANG Dong-xiao. Comparison of environmental constituents in the Pearl River Estuary during summer of 1999 and 2009 [J]. Journal of Tropical Oceanography, 2011, 30(4): 16-23.