نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم غیرزیستی جوی و اقیانوسی، دانشکده علوم و فنون دریایی، دانشگاه هرمزگان، بندرعباس، ایران.

2 گروه علوم غیرزیستی جوی و اقیانوسی، دانشکده علوم و فنون دریایی، دانشگاه هرمزگان، بندرعباس، ایران،

چکیده

در این مطالعه، با استفاده از داده‌های بلندمدت AVISO، طی 25 سال (11 دی‌ماه 1371 الی 10 دی‌ماه 1394)، آنومالی تراز دریای خلیج فارس (قدرت تفکیک فضایی 0/25 درجه طول و عرض جغرافیایی)، در محیط نرم‌افزار MATLAB مورد بررسی قرار گرفته است. متوسط 25 ساله از داده‌ها نشان می‌دهد؛ آنومالی تراز دریا مثبت و برابر باcm 3/06 ± 0/05 (انحراف معیار±میانگین) است که بیشتر از متوسط جهانی است. دامنه تغییرات آن از مقدار کمینه cm 2/46 تا بیشینه cm 3/42 تغییر می‌کند. متوسط 25‌ ساله از هر فصل نشان می‌دهد که آنومالی تراز دریا با خیزی در فصل پاییز و افتی در فصل بهار مواجه است. دو فصل تابستان و زمستان به صورت فصل گذار از بیشینه آنومالی پاییزه به کمینه آنومالی بهاره است. همچنین نتایج نشان می‌دهد که توزیع مکانی آنومالی تراز دریا در حوضه، متفاوت است. میانگین آنومالی روند تراز دریا در خلیج‌فارس افزایشی و برابر با  0/1±2/9+ mm/year  است که خلیج‌فارس را عملا به سه بخش شمال غربی در نزدیکی ساحل عربی (با آهنگ کمتر از mm/year 2/5)، بخش شمالی و مرکزی خلیج (با آهنگ mm/year 3/5-2/5) و بخش جنوبی خلیج و تنگه هرمز (با آهنگ بیش از mm/year 3/5) تقسیم می‌کند. پس بنابراین، اگرچه سر خلیج فارس دارای روند تغییرات مثبت است، اما کمتر از بخش جنوبی آن و در نزدیکی تنگه هرمز است. اگر افزایش تراز دریای خلیج فارس، با همین روند ادامه یابد، در 200 سال آینده، بیش از m 0/5 سطح تراز دریای خلیج‌فارس افزایش خواهد داشت که در حجم حوضه و مساحت آن تغییرات قابل توجهی وارد می‌شود.

کلیدواژه‌ها

موضوعات

Afshar-Kaveh, N., Ghaheri, A., Chegini, V. and Nazarali, M. 2018. Prediction of nontidal sea level variations in the Persian Gulf using data assimilation techniques. Coastal Engineering Journal, 60(3), pp. 340-355.
Alothman, A.O., Bos, M.S., Fernandes, R.M.S. and Ayhan, M.E. 2014. Sea level rise in the north-western part of the Arabian Gulf. Journal of Geodynamics, 81, pp.105-110.
Antonov, J.I., Levitus, S. and Boyer, T.P. 2005. Thermosteric sea level rise, 1955–2003. Geophysical Research Letters, 32(12).
AVISO+. 2018. "SSALTO/DUACS user handbook:(M) SLA and (M) ADT near‐real time and delayed time products," Rep. CLS‐DOS‐NT 6, 51. https://www.aviso.altimetry.fr
Bindoff, N.L., Willebrand, J., Artale, V., Cazenave, A., Gregory, J.M., Gulev, S., Hanawa, K., Le Quere, C., Levitus, S., Nojiri, Y., Shum, C.K., Talley, L.D. and Unnikrishnan, A.S. 2007. Observations: Oceanic Climate Change and Sea Level, Climate Change: The Physical Science Basis. Contribution of Working Group 1 to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, UK and NY, USA, pp. 385-432.
Bouttes, N., Gregory, J.M., Kuhlbrodt, T. and Smith, R.S. 2014. The drivers of projected North Atlantic sea level change. Climate dynamics, 43(5-6), pp. 1531-1544.
Cambridge Dictionary. 2008. Cambridge online dictionary, Cambridge University Press. Retrieved at July 21, 2019, from the website: https://dictionary.cambridge.org/dictionary/english/anomaly
Cazenave, A., Meyssignac, B., Ablain, M., Balmaseda, M., Bamber, J., Barletta, V., Beckley, B., Benveniste, J., Berthier, E., Blazquez, A., Boyer T. et al., 2018. Global sea-level budget 1993-present. Earth System Science Data, 10(3), pp. 1551-1590.
Church, J.A. and White, N.J. 2006. A 20th century acceleration in global sea‐level rise. Geophysical research letters, 33(1).
Church, J.A., Gregory, J.M., Huybrechts, P., Kuhn, M., Lambeck, K., Nhuan, M.T., Qin, D. and Woodworth, P.L. 2001. Changes in sea level. In JT Houghton, Y. Ding, DJ Griggs, M. Noguer, PJ Van der Linden, X. Dai, K. Maskell, and CA Johnson (eds.): Climate Change 2001: The Scientific Basis: Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel (pp. 639-694).
Cid, A., Castanedo, S., Abascal, A.J., Menéndez, M. and Medina, R. 2014. A high resolution hindcast of the meteorological sea level component for Southern Europe: the GOS dataset. Climate dynamics, 43(7-8). pp. 2167-2184.
Cipollini, P., Calafat, F.M., Jevrejeva, S., Melet, A. and Prandi, P. 2017. Monitoring sea level in the coastal zone with satellite altimetry and tide gauges. In Integrative Study of the Mean Sea Level and Its Components (pp. 35-59). Springer, Cham.
Dangendorf, S., Hay, C., Calafat, F.M., Marcos, M., Piecuch, C.G., Berk, K. and Jensen, J. 2019. Persistent acceleration in global sea-level rise since the 1960s. Nature Climate Change, 9(9), pp. 705-710.
Delepoulle, A., Chelton, D., Schlax, M., Faugere, Y. and Dibarboure, G. 2018. 24 years mesoscale eddy trajectory atlas on AVISO. In EGU General Assembly Conference Abstracts (Vol. 20, April. p. 13690).
Faghmous, J.H., Frenger, I., Yao, Y., Warmka, R., Lindell, A. and Kumar, V. 2015. A daily global mesoscale ocean eddy dataset from satellite altimetry. Scientific data, 2: 150028.
Emami, M., Soyuf Jahromi, M. and Behmanzadegan Jahromi, A.L. 2019. Coastline effect on tidal flow pattern. Journal of Marine Science and Technology, 18 (2), pp.12-25.
Frederikse, T., Landerer, F., Caron, L., Adhikari, S., Parkes, D., Humphrey, V.W., Dangendorf, S., Hogarth, P., Zanna, L., Cheng, L. and Wu, Y.H. 2020. The causes of sea-level rise since 1900. Nature, 584(7821), pp.393-397.
Gera, A., Mitra, A.K., Mahapatra, D.K., Momin, I.M., Rajagopal, E.N. and Basu, S. 2016. Sea surface height anomaly and upper ocean temperature over the Indian Ocean during contrasting monsoons. Dynamics of Atmospheres and Oceans, 75, pp.1-21.
Gill, A.E. 1982. Atmosphere-Ocean dynamics (International Geophysics Series). Academic press.
Gornitz, V. 1995. Sea‐level rise: A review of recent past and near‐future trends. Earth surface processes and landforms, 20(1), pp.7-20.
Gregory, J.M., Griffies, S.M., Hughes, C.W., Lowe, J.A., Church, J.A., Fukimori, I., Gomez, N., Kopp, R.E., Landerer, F., Cozannet, G.L., Ponte, R.M, Stammer, D., Tamisiea, M.E. and van de Wal, R.S.W. 2019. Concepts and terminology for sea level: mean, variability and change, both local and global. Surveys in Geophysics, 40(6), p:1251-1289.
Hassanzadeh, S., Kiasatpour, A. and Hosseinibalam, F. 2007. Sea-level response to atmospheric forcing along the north coast of Persian Gulf. Meteorology and Atmospheric Physics, 95(3-4), pp.223-237.
Hosseinibalam, F., Hassanzadeh, S. and Kiasatpour, A. 2007. Interannual variability and seasonal contribution of thermal expansion to sea level in the Persian Gulf. Deep Sea Research Part I: Oceanographic Research Papers, 54(9), 1474-1485.
http://marine.copernicus.eu/web/27-service-commitments-and-licence.php،
http://www.marine.copernicus.eu
Krug, M. and Tournadre, J. 2012. Satellite observations of an annual cycle in the Agulhas Current. Geophysical Research Letters, 39(15).
Kumar, P., Hamlington, B., Thompson, P.R. and Han, W. 2017. Improved Reconstructed Sea-Level Dataset for the Indian Ocean. In AGU Fall Meeting Abstracts (December).
Kumar, P., Hamlington, B., Thompson, P.R., Han, W. and Cheon, S.H. 2018. Decadal Internal Sea-Level variability in the Indian Ocean studied using a New Bivariate Regionally Reconstructed Sea-Level Dataset. In AGU Fall Meeting Abstracts (December).
Landerer, F.W., Jungclaus, J.H. and Marotzke, J. 2007. Regional dynamic and steric sea level change in response to the IPCC-A1B scenario. Journal of Physical Oceanography, 37(2), pp. 296-312.
Levermann, A., Griesel, A., Hofmann, M., Montoya, M. and Rahmstorf,,S. 2005. Dynamic sea level changes following changes in the thermohaline circulation. Climate Dynamics, 24(4), pp.347-354.
Merrifield, M.A., Thompson, P.R. and Lander. M. 2012. Multidecadal sea level anomalies and trends in the western tropical Pacific. Geophysical Research Letters, 39(13).
Miller, K.G., Kominz, M.A., Browning, J.V., Wright, J.D., Mountain, G.S., Katz, M.E., Sugarman, P.J., Cramer, B.S., Christie-Blick, N. and Pekar, S.F. 2005. The Phanerozoic record of global sea-level change. science, 310(5752), pp.1293-1298.
Park, Y.H. 2004. Determination of the surface geostrophic velocity field from satellite altimetry. Journal of Geophysical Research: Oceans, 109(C5).
Penduff, T., Juza, M., Brodeau, L., Smith, G.C., Barnier, B., Molines, J.M., Tréguier, A.M. and Madec, G. 2010. Impact of global ocean model resolution on sea-level variability with emphasis on interannual time scales. Ocean Science, 6, pp.269-284.
Prandi, P., Ablain, M., Cazenave, A. and Picot, N. 2012. A new estimation of mean sea level in the Arctic Ocean from satellite altimetry. Marine Geodesy, 35(sup1), pp. 61-81.
Purser, B.H. (Ed.). 2012. The Persian Gulf: Holocene carbonate sedimentation and diagenesis in a shallow epicontinental sea. Springer Science & Business Media. pp. 472.
Radić, V. and Hock, R. 2011. Regionally differentiated contribution of mountain glaciers and ice caps to future sea-level rise. Nature Geoscience, 4(2), p.91.
Reilinger, R.E., McClusky, S.C., Oral, M.B., King, R.W., Toksoz, M.N., Barka, A.A., Kinik, I., Lenk, O. and Sanli, I. 1997. Global Positioning System measurements of present‐day crustal movements in the Arabia‐Africa‐Eurasia plate collision zone. Journal of Geophysical Research: Solid Earth102(B5), pp. 9983-9999.
Revelle, R., Barnett, T.P. and Barron, E.J. 1990. Sea-level change. Studies in geophysics. National Research Council. National Academy Press, Washington, DC, 234.
Reynolds, R.M. 1993. Physical oceanography of the Gulf, Strait of Hormuz, and the Gulf of Oman—Results from the Mt Mitchell expedition. Marine Pollution Bulletin, 27, pp. 35-59.
Ruiz Etcheverry, L.A., Saraceno, M., Piola, A.R. and Strub, P.T. 2016. Sea level anomaly on the Patagonian continental shelf: Trends, annual patterns and geostrophic flows. Journal of Geophysical Research: Oceans, 121(4), pp. 2733-2754.
Sahagian, D. and Jones, M. 1993. Quantified Middle Jurassic to Paleocene eustatic variations based on Russian Platform stratigraphy: Stage level resolution. Geological Society of America Bulletin, 105(8), pp.1109-1118.
Salarijazi, M. 2019. Estimation of rating curve in river’s tidal limit using long term and tidal flood data. Journal of Marine Science and Technology, 18(1), pp.43-61.
Schmidt, J. Dangendorf, S. Calafat, F.M., Patzke, J., Jensen, J. and Fröhle, P. 2017. A novel tide gauge dataset for the Baltic Sea-Part 1: Spatial features and temporal variability of the seasonal sea level cycle. In Geophysical Research Abstracts (Vol. 19, April).
Slater, T., Hogg, A.E. and Mottram, R. 2020. Ice-sheet losses track high-end sea-level rise projections. Nature Climate Change, 10(10), pp. 879-881.
Subbotina, M.M., Thomson, R.E. and Rabinovich, A.B. 2001. Spectral characteristics of sea level variability along the west coast of North America during the 1982–83 and 1997–98 El Niño events. Progress in Oceanography, 49(1-4), pp. 353-372.
Sultan, S.A.R., Ahmad, F., Elghribi, N.M. and Al-Subhi, A.M. 1995. An analysis of Arabian Gulf monthly mean sea level. Continental Shelf Research, 15(11-12), pp.1471-1482.
The MathWorks Inc. 2016. MATLAB and Statistics Toolbox 64-bit, Version 2016a, Release 2016a, Natick, Massachusetts, USA.
Thoppil, P.G. and Hogan, P.J. 2010a. A modeling study of circulation and eddies in the Persian Gulf. Journal of Physical oceanography, 40(9), pp.2122-2134.
Thoppil PG. and Hogan PJ. 2010b. Persian Gulf response to a wintertime shamal wind event. Deep Sea Research Part I: Oceanographic Research Papers, 57(8), pp.946-955.
Timmermann, A., McGregor. S. and Jin, F.F. 2010. Wind effects on past and future regional sea level trends in the southern Indo-Pacific. Journal of Climate, 23(16), pp. 4429-4437.
Tomczak, M. and Godfrey, J.S. 2013. Regional oceanography: an introduction. Elsevier. pp. 422.
Walsh, J.E., Chapman, W.L. and Shy, T.L. 1996. Recent decrease of sea level pressure in the central Arctic. Journal of Climate, 9(2), pp. 480-486.
Xue, P. and Eltahir, E.A. 2015. Estimation of the heat and water budgets of the Persian (Arabian) Gulf using a regional climate model. Journal of Climate, 28(13), pp.5041-5062.
Yi, J., Du, Y., Zhou, C., Liang, F. and Yuan, M. 2015. Automatic identification of oceanic multieddy structures from satellite altimeter datasets. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 8(4), pp.1555-156.