The Influence of Horizontal Dispersion on Residence Times in Shallow Lakes

Water Resources Research, Journal Year: 2025, Volume and Issue: 61(2)

Published: Feb. 1, 2025

Abstract This study presents results of circulation and residence time in lakes influenced by wind‐induced mixing investigated with numerical simulations. The area is Lake Kasumigaura, a continuous lake system primally consisting two lakes, West North Lake. Although metrological conditions depths are similar for both the surface shape very different. A model resolves primary features wind‐driven forced observed river discharges wind stress. passive tracer released from mouths used to estimate evaluate processes. Wind‐driven flow dominates kinetic energy induces chaotic motions leading dispersion which largely lakes. Results indicate that much longer well‐mixed middle basin than estimated horizontal diffusivity approximately three times larger large small‐narrow suggests predominantly driven influences circulation, water exchange processes

Language: Английский

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Validity of theoretical solutions for a rotating rectangular basin with two-layer stratification due to a suddenly imposed wind

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(3)

Published: March 1, 2025

In 1974, Csanady and Scott developed theoretical solutions for the flow fields displacements of a density interface in rectangular basin with two-layer stratification when constant wind stress was suddenly imposed. However, their do not satisfy all boundary conditions. present study, we have corrected these analyzed validity by comparing them numerical simulations. We found that high upwelling does occur nonlinear effects, vertical circulation, layer effects are small. addition, Wedderburn number WN is more significant applicability than Burger Si. Furthermore, highly applicable to actual phenomena WN≥ 1.98.

Language: Английский

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Effects of rotation on internal solitary waves

Applied Ocean Research, Journal Year: 2024, Volume and Issue: 149, P. 104061 - 104061

Published: May 25, 2024

Language: Английский

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Investigating the Fujiwhara Effect on Seroja TC and Odette TC on Upwelling Patterns Using EMT and EPV Spatial Analysis

Springer proceedings in physics, Journal Year: 2024, Volume and Issue: unknown, P. 137 - 146

Published: Jan. 1, 2024

Language: Английский

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Fenomena Upwelling di Perairan Spermonde Sulawesi Selatan

Jurnal Riset Kelautan Tropis (Journal of Tropical Marine Research) (J-Tropimar), Journal Year: 2023, Volume and Issue: 4(2), P. 124 - 136

Published: May 31, 2023

Perairan Spermonde merupakan perairan yang mengelilingi pulau-pulau dengan dangkalan berada di sebelah barat daya Sulawesi Selatan wilayah tropis dan dilintasi garis khatulistiwa menyebabkan tersebut mengalami dua musim berbeda yaitu timur. Tujuan penelitian ini untuk menganalisis fenomena upwelling spermonde. spermonde pada timur (juni-agustus) berpotensi terjadi karena memiliki angin arus cukup kuat sehingga transpor ekman meyebabkan pembelokkan bergerak dari tenggara kearah barat. Indikasi dapat dilihat kenaikan massa air temperatur salinitas dalam semua stasiun upwelling. Pola konsentrasi klorofil-a laut tengah lepas lemah klorofil tertinggi dekat pantai pengaruh sungai beberapa kegiatan industri lainnya daerah tidak terlalu tinggi dihubungkan menurunnya suhu permukaan laut.

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