Features of the Three Dimensional Structure in the Pacific Sub-surface Layer in Summer

Luyuan Chen (Research and Development Center of Earth System Model (RDCM), Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China)
Rong Cheng (Research and Development Center of Earth System Model (RDCM), Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China)
Feimin Zhang (Research and Development Center of Earth System Model (RDCM), Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China)
Kai Yang (Research and Development Center of Earth System Model (RDCM), Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China)
Chenghai Wang (Research and Development Center of Earth System Model (RDCM), Lanzhou University, Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China)

Abstract


The anomaly of the summer sea temperature is analyzed by a spatial-temporal synthetically rotated orthogonal function (REOF) at three different depths (0 m, 40 m, and 120 m) over the area 110°E~100°W and 30°S~60°N. The spatial-temporal distribution shows that the “signal” of annual anomaly is stronger in the sub-surface layer than the surface layer, and it is stronger in the eastern equatorial Pacific than in the western area. The spatial structure of the sea temperature anomaly at different layers is related to both the ocean current and the interaction of ocean and atmosphere. The temporal changing trend of the sub-surface sea temperature in different areas shows that the annual mean sea temperature increases and the annual variability evidently increases from the 1980s, and these keep the same trend with the increasing El Nino phenomenon very well.


Keywords


Pacific sea temperature;Spatial structure;Temporal evolution

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References


[1] Zhang, C., J. Qi, J. Zuo, F. Zhang, The three dimensional numerical simulation of thermocline in Yellow Sea and Bohai Sea, ACTA OCEANOLOGICA SINICA, 1997, 11 Vol.l9(6): 12-20.

[2] Hui, x., J. Chen, Y. He, L. Xu, G. Song, Sub-surface ocean temperature anomalies in the western Pacific and the anomalous ocean temperature west wars transferring in the north equatorial current, ADVANCE IN WATERSCIENCE, 2002,VOL.13(2): 133-140.

[3] Chao, J., X. Chen, J.He, The baroclinic response of west tropical Pacific to wind stress, CHINESE JOURNAL OF CEOPHYSICS, 2002, Vol.45 (2):176-187.

[4] Chen, J., Y., He, S., Sun, L., Xu, G., Song, Y., Zhang, The west Pacific warm pool variation and its influence on subsurface ocean temperature field in the West Pacific, ACTA OCEANOLOGICA SINICA, 2002,Vol.24(3):35-44.

[5] Zhong, S., J. He, X. Liu, Decadal variability and abrupt change of upper-ocean temperature in the Pacific, Journal of Nanjing Institute of Meteorology, Oct, 2002, V01.25(5):595-602.

[6] Zhang R. H., S.Levitus, Structure and cycle of decadal variability of upper-ocean temperature in the North Pacific, J. Climate, 1997, 10(4):7l0—727.

[7] Chen J., G. Song, J. Chu, L. Xu, Oceanic temperature anomalous signal path way in the equatorial Pacific, ADVANCES IN WATER SCIENCE,2003,Vol.14(2):152-157.

[8] Chao J.P., The dynamics of El Nino and southern oscillation, Meteorological press, China, Dec. 1993.167-265

[9] Levitus S., A. H. Orto, Global analysis of oceanographic data, Bull., Am., Meteor., Soc., 1977, 58.1270-1284.

[10] Bryan K. and M.D. Cox, A numerical investigation of the oceanic general circulation. Tellus. 1967: 19, 54-80.

[11] Bryan K., Pole ward heat transport by the Ocean: observations and models. Annu. Rev., Earth Planet.Sci.1982: 10, 15-38.

[12] Bryan K., Climate and the ocean circulation, The ocean model, Mon., Wea, Rev., 1969:97, 806-827.

[13] Zhao Q., Y. Li, S. Peng, The relationship of between upper sea temperature in Pacific near equator and.The study on observation, simulating and diagnosing of interaction of sea-atmosphere over west tropic Pacific. Beijing, China Meteorological Press.1996:35—44.

[14] Chao J., Z., Wang, The simple interaction of Air-sea coupled waves-Rossby waves.ACTA METEOROLOGICA SINICA, 1993, 51 (4): 385—393.

[15] Gu D.F., S.H. Philander, Inter-decadal climate fluctuations that depend on exchanges between the tropics and extratropics, Science, 1997,275 (5301): 805—807.

[16] Meller G. L., and P. A. Durbin, The structure and dynamics of the ocean surface mixture layer, J. Phys. Oceanography, 1975.(5):718-728.

[17] Lin Chuanlan, Some features of heat content changes of the oceanic upper layer in northwest Pacific during 1964-1982, TROPIC OCEANOLOGY, May, 1990, Vol.9(2): 78-85.

[18] White W. B., S.E. Pazan, G. W. Withee, and C. Noe, Joint environmental data analysis (Jeda) center for scientific quality control of upper ocean thermal data in support of TOGA and WOCE. EOS Transaction, American Geophysical Union, 1988, 69, 122-123.

[19] Meyers, G. and L. Pigot, 2000. Analysis of frequently repeated XBT lines in the Indian Ocean. CSIRO Marine Laboratories.Technical Report238, 43pp.

[20] Horel D., A Rotated principal Component analysis of the interannual Variability of Northern Hemisphere 500hpa high filed, M. W. R., 1981.

[21] Jin L., B. Zhang, J. Chou, The synthesis analysis on vertical structure of the monthly mean circulation anomalies over the northern hemisphere, Science Atmospheric SINICA, May, 1993, Vol.17, No.3:310-318.

[22] Nitta T, S.Yamada, Recent warming of tropical sea surface temperature and its relationship to the Northern Hemi—sphere circulation.J. Meteor. Soc. Japan,1989,67 (3):375—383.

[23] Levitus S., Annual cycle of temperature and heat storage in the world ocean.1984, J., Phys., Oceanogr.

[24] Graham N., E., T. P. Barnet, R. Wilde, et a1, On the roles of tropical and mid—latitude SSTs in forcing interannual to inter-decadal variability in the winter Northern Hemispheric circulation, J. Climate, 1994, 7(8): 1416—1 441.

[25] Zhang Y., J.M.Wallace, D.S.Battisti,ENSO—like decadal—to—century scale variability:1900-l993.J. Climate.1997,10 (5):1004—1020.



DOI: https://doi.org/10.30564/jasr.v3i2.1999

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