Chinese Physics B, Volume. 29, Issue 8, (2020)
Mesoscale eddies and their dispersive environmental impacts in the Persian Gulf
Figures & Tables(11)
![(a) Map of the Persian Gulf region based on ETOPO2 data, depth in terms of meters.[4] (b) Water circulation in the Persian Gulf from August to November.[9]](/Images/icon/loading.gif){kind=icon}
Fig. 1. (a) Map of the Persian Gulf region based on ETOPO2 data, depth in terms of meters.[
Fig. 2. Height contours in the Persian Gulf for various seasons on (a) 19 August 2014 and (b) 12 February 2014.
Fig. 3. Histogram of the mean number of eddies in different months from 2010 to 2014.
Fig. 4. Percentage of the monthly mean of eddies considering their polarity (2010–2014) (the red and blue histograms are assigned to anti-cyclonic and cyclonic eddies, respectively).
Fig. 5. The dispersion histogram of the percentage of the mean of eddy diffusion coefficient over a tensile interval (the red and blue histograms are assigned to the anti-cyclonic and cyclonic eddies, respectively).
Fig. 6. Maps showing the place of eddies in winter (a) and summer (b) 2014 (the cyclonic and anti-cyclonic eddies with the highest diffusion coefficient are represented by five-pointed blue and red stars, respectively).
Fig. 7. The contour maps showing eddy diffusion coefficients in summer (2014) (the high-risk areas are marked with a number).
Fig. 8. (a) and (b) Maps extracted from simulations provided by Thoppil and Hugan[
Table 1. Percentage of the seasonal mean of eddies considering the polarity (2010–2014).
View tableView in ArticleTable 1. Percentage of the seasonal mean of eddies considering the polarity (2010–2014).
Spring Summer Autumn Winter Total Cyclonic 62.10% 58.60% 55.90% 60.90% 59.10% Anti-cyclonic 37.90% 41.40% 44.10% 39.10% 40.90%
Table 2. Eddies with the highest diffusion coefficients kxy (2014).
View tableView in ArticleTable 2. Eddies with the highest diffusion coefficients kxy (2014).
Season Number of eddies Leff/km kxy/(m2/s) Lifetime/week Date of event Winter 20 102.95 76.70 1 26 February 2(AC) 105.27 54.2 1 25 December 18 65.79 53.15 3 5 March 21 73.88 52.33 1 26 February Spring 21 48.34 87.25 3 3 June 21 85.59 82.68 3 27 May 24 52.79 69.35 1 10 June 13 49.86 62.85 1 6 May Summer 4 53.79 116.81 4 15 July 3 95.69 108.67 2 8 July 1 102.42 108.09 2 15 July 9 60.12 107.01 6 2 September Autumn 5 77.80 79.11 3 21 October 34 63.14 72.53 1 23 December 14(AC) 57.51 69.93 4 2 December 32(AC) 47.25 68.08 1 23 December
Table 3. Areas of eddy occurrence along with the mean of diffusion coefficients in summer (2014).
View tableView in ArticleTable 3. Areas of eddy occurrence along with the mean of diffusion coefficients in summer (2014).
Number of area Area/km2 The mean of diffusion coefficient in the target area/(m2/s) Location Longitude/degree Latitude/degree from to from to 1 15220.99 78.05 25.78 27.57 51.38 53.82 2 2443.09 76.02 25.74 26.42 53.42 53.98 3 4573.55 70.08 25.51 26.1 54.37 55.28 4 3901.59 65.23 27.57 28.40 48.92 50.21
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Amin Raeisi, Abbasali Bidokhti, Seyed Mohammad Jafar Nazemosadat, Kamran Lari. Mesoscale eddies and their dispersive environmental impacts in the Persian Gulf[J]. Chinese Physics B, 2020, 29(8):
Paper Information
Received: Mar. 21, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Bidokhti Abbasali (bidokhti@ut.ac.ir)
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