Hydrophysics

Hydrophysics

Wind Effect on Changes of Density in a Theoretical Oceanic Model with Non-Level Bottom

Document Type : Original Article

Authors
zohreh heidari nesheli 1
Mohammad Taghi Zamanian 2
Masoud Sadrinasab 3
1 Ph.D Student in Physical Oceanography, Khoramshahr Marine Science and Technology University, Khoramshahr
2 University professor , Khoramshahr Marine Science and Technology University, Khoramshahr
3 Associate Professor, Coastal Engineering Department, Faculty of Environment, University of Tehran
Abstract
The subject of this study is 3D modeling of density changes and double diffusion of salinity and temperature in a marine rectangular basin with closed boundaries and none-level bottom on longitude: 47º to 58º E and latitude: 24º to 30º N. In the area of the study every horizontal layer has regular mesh grid points. In this study the lattice that is applied is modified Arakawa C lattice and spatial grid distance in both east and north is equal to 0.5º and in vertical with respect to type of vertical coordinate, it is equal to 0.1 in sigma scale. Distance of grids is considered as long as 0.5-degree Longitude and Latitude. It is considered in 5 layers in spherical coordinate with sigma vertical component. In order to Numerical calculation of every parameter used in governing equations, equation should be discretize by special mathematical scheme, and wind blow is considered steady all over basin surface during the 4 days. Results show quality of changes in diffusion of temperature and salinity of each layer along longitude and latitude.
 
Keywords
theoretical ocean model
non-level bottom
density changes
wind effect
sigma coordinate
 
[1]    زمانیان محمدتقی. اصطکاک در مدل‌های اقیانوسی. نیوار. 1373؛ 23: 16-24.
[2]        Cox M. A primitive equation, 3-dimensional model of the ocean. 1984. (GFDL Ocean Group Technical Report; vol.1).   
[3]        Bryan K. A numerical method for the study of the circulation of the world ocean. Journal of computational physics. 1969 Oct 1;4(3):347-76.
[4]        Zamanian M. Three-dimensional model for Persian Gulf [dissertation]. Univ. Philippines; 1994.
[5]    رشیدی اکبر. شبیه سازی جریانات ناشی از کشند و اختلاف چگالی در یک حوضۀ دولایۀ فرضی ]پایان نامه[. تهران: دانشگاه تربیت مدرس؛ 1385.
[6]    فرجامی حسین. شبیه سازی جریانات بادرانده در یک حوضۀ پنج لایۀ فرضی اقیانوسی ] پایان نامه[. تهران: دانشگاه تربیت مدرس؛ 1385.
[7]    بنازاده محمدرضا، کرمی علیرضا. بررسی الگوی امواج، جریانات ناشی از موج و انتقال رسوب دردلتای رودخانه زهره. ارائه شده در: ششمین همایش علوم و فنون دریایی؛ 1384 دی 1-2 ؛ تهران، ایران.
[8]    زمانیان محمدتقی . پروژۀ مدل دولایه اقیانوسی پایه. تهران: انتشارات پژوهشکده هواشناسی و علوم جو؛ 1384.
[9]     Gill AE. Atmosphere-Ocean Dynamics. Academic Press; 1982 Dec 13.
[10] زمانیان محمدتقی . باد در سواحل ایران. تهران: انتشارات سازمان هواشناسی کشور؛ 1382.
[11] Stewart RH. Introduction to physical oceanography. Department of Oceanography, Texas A & M University; 2008. p. 151-82. Available electronically from. http://hdl. handle.net /1969 .1/160216.
[12] Kämpf J. Advanced Ocean Modelling: Using Open-source Software. Berlin: Springer Science & Business Media; 2010 Apr 30. p.181.
 
Hydrophysics
Volume 2, Issue 2 - Serial Number 3
October 2016
Pages 27-40

  • Receive Date 28 May 2017
  • Revise Date 12 October 2017
  • Accept Date 09 August 2017