The upper-ocean response to monsoonal forcing in the Arabian Sea: seasonal and spatial variability

Lee, Craig M.; Jones, Burton H.; Brink, Kenneth H.; Fischer, Albert

doi:10.1016/s0967-0645(99)00141-1

Cited by 190 publications

(169 citation statements)

References 32 publications

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“…In 1995 the Arabian Sea in the vicinity of the southern section was dominated by eddies and "laments Flagg and Kim, 1998;Lee et al, 2000). The presence of a strong advective "lament at Station S08 during TN050 was shown by Flagg and Kim (1998, Fig.…”

Section: Filaments and Eddiesmentioning

confidence: 80%

“…During the SW Monsoon there was evidence of strong upwelling with cool, lower salinity, nutrient-rich water in the inshore region adjacent to Oman (Lee et al, 2000;Shi et al, 2000). The inshore coastal upwelling region was similar in both hydrography and nutrients to the four other major coastal upwelling regions (Barber and Smith, 1981).…”

Section: D\ 1 ) During the Sw Monsoon And Moderately Oligotrophic Conmentioning

confidence: 96%

“…As is common in coastal upwelling systems, the Arabian Sea during the SW Monsoon was also characterized by strong, narrow jet-like currents that ran in a generally o!shore direction from the zone of coastal upwelling to about 700 km o!shore . In addition, there were numerous well-de"ned mesoscale eddies that generated considerable variability in hydrographic properties (Flagg and Kim, 1998;Lee et al, 2000). Filaments and eddies dominated the velocity "eld in this region during the SW Monsoon.…”

Section: D\ 1 ) During the Sw Monsoon And Moderately Oligotrophic Conmentioning

confidence: 99%

“…To obtain three-dimensional resolution of the physical "elds in the vicinity of the US JGOFS southern section, a SeaSoar towed-array was employed on cruises carried out by the US O$ce of Naval Research (ONR) Forced Upper Ocean Dynamics project (Smith et al, 1998a;Lee et al, 2000).…”

Section: Physical and Chemical Observationsmentioning

confidence: 99%

“…1999). Satellite temperature and acoustic Doppler current pro"les (ADCP) show that the S07 region was the site of well-de"ned eddy and "lament activity during the SW Monsoon (Flagg and Kim, 1998;Manghnani et al, 1998;Lee et al, 2000). …”

Section: Wind Stress and Ekman Upwellingmentioning

confidence: 99%

See 4 more Smart Citations

Primary productivity and its regulation in the Arabian Sea during 1995

Barber

Marra

Bidigare

et al. 2001

Deep Sea Research Part II: Topical Studies in Oceanography

225

106

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Section: Filaments and Eddiesmentioning

confidence: 80%

Section: D\ 1 ) During the Sw Monsoon And Moderately Oligotrophic Conmentioning

confidence: 96%

Section: D\ 1 ) During the Sw Monsoon And Moderately Oligotrophic Conmentioning

confidence: 99%

Section: Physical and Chemical Observationsmentioning

confidence: 99%

Section: Wind Stress and Ekman Upwellingmentioning

confidence: 99%

See 3 more Smart Citations

Primary productivity and its regulation in the Arabian Sea during 1995

Barber

Marra

Bidigare

et al. 2001

Deep Sea Research Part II: Topical Studies in Oceanography

225

106

View full text Add to dashboard Cite

Mesoscale dynamics in the Arabian Sea and a focus on the Great Whirl life cycle: A numerical investigation using ROMS

et al. 2014

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The Great Whirl (GW) is a persistent anticyclonic mesoscale eddy that is observed seasonally in the Arabian Sea during a period embedding the 3 months of the southwest monsoon (June-July-August) at a quasi-steady location. Its dynamics remain unclear despite it being one of the largest coherent vortices in the world ocean. Realistic regional numerical experiments using ROMS are performed to investigate the life cycle of the GW, which is not well resolved by sparse available in situ measurements in the region. Using a set of sensitivity experiments and an accurate temporal characterization of the eddy properties (including position, radius, depth, and vorticity) we (i) confirm the role of basin-scale downwelling Rossby waves in the GW generation, (ii) clarify the role of the monsoonal strong anticyclonic wind in its maintenance and barotropization, and (iii) suggest a connection between basin-scale Rossby wave dynamics and GW collapse.

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Summertime phytoplankton blooms and surface cooling in the western south equatorial Indian Ocean

Liao

Zhan

et al. 2014

J. Geophys. Res. Oceans

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Chlorophyll-a (Chla) concentration derived from the Sea viewing Wide field of View sensor (SeaWiFS) data (January 1998 to December 2010) shows phytoplankton blooms in the western south equatorial Indian Ocean (WSEIO) during the summer monsoon. The mechanism that sustains the blooms is investigated with the high-resolution Ocean General Circulation Model for the Earth Simulator (OFES) products. The summer blooms in the WSEIO are separated from the coast; they occur in June, reach their maximum in August, and decay in October. With summer monsoon onset, cross-equatorial wind induces open-ocean upwelling in the WSEIO, uplifting the nutricline. The mixed layer heat budget analysis reveals that both thermal forcing and ocean processes are important for the seasonal variations of SST, especially wind-driven entrainment plays a significant role in cooling the WSEIO. These processes cause nutrient enrichment in the surface layer and trigger the phytoplankton blooms. As the summer monsoon develops, the strong wind deepens the mixed layer; the entrainment thus increases the nutrient supply and enhances the bloom. Horizontal advection associated with the Southern Gyre might also be an important process that sustains the bloom. This large clockwise gyre could advect nutrient-rich water along its route, allowing Chla to bloom in a larger area.

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The upper-ocean response to monsoonal forcing in the Arabian Sea: seasonal and spatial variability

Cited by 190 publications

References 32 publications

Primary productivity and its regulation in the Arabian Sea during 1995

Primary productivity and its regulation in the Arabian Sea during 1995

Mesoscale dynamics in the Arabian Sea and a focus on the Great Whirl life cycle: A numerical investigation using ROMS

Summertime phytoplankton blooms and surface cooling in the western south equatorial Indian Ocean

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