Numerical study of the effects of ocean color on the sea surface temperature in the southeast tropical Indian Ocean: the role of the barrier layer

<p>This article investigates the role of sea surface temperature (SST) as well as the effects of evaporation and moisture convergence on the evolution of cyclone Klaus, which occurred on January 23 and 24, 2009. To elucidate the role of sea surface temperature (SST) and air–sea fluxes in the dynamics of the cyclone, ten hydrostatic mesoscale simulations were performed by Bologna Limited Area Model (BOLAM). The first one was a control experiment with European Centre for Medium-Range Weather Forecasts (ECMWF) SST analysis. The nine following simulations are sensitivity experiments where the SST are obtained by adding a constant value by 1 to 9 K to the ECMWF field. Results show that a warmer sea increases the surface latent heat fluxes and the moisture convergence, favoring the development of convection in the storm. Convection is affected immediately by the increased SST. Later on, drop of mean sea level pressure (MSLP) occurs together with increasing of surface winds. The cyclone trajectory is not sensitive to change in SST differently from MSLP and convective precipitation.</p>

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Comparison between Argo-derived sea surface temperature and microwave sea surface temperature in tropical Indian Ocean

Remote Sensing Letters ◽

10.1080/2150704x.2012.711955 ◽

2012 ◽

Vol 4 (2) ◽

pp. 141-150 ◽

Cited By ~ 4

Author(s):

Tata V. S. Udaya Bhaskar ◽

Chiranjivi Jayaram ◽

Eluri Pattabhi Rama Rao

Keyword(s):

Indian Ocean ◽

Surface Temperature ◽

Sea Surface Temperature ◽

Tropical Indian Ocean ◽

Sea Surface

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Relationship Between Cyclone Intensities and Sea Surface Temperature in the Tropical Indian Ocean

IEEE Geoscience and Remote Sensing Letters ◽

10.1109/lgrs.2012.2226138 ◽

2013 ◽

Vol 10 (4) ◽

pp. 841-844 ◽

Cited By ~ 16

Author(s):

M. M. Ali ◽

D. Swain ◽

T. Kashyap ◽

J. P. McCreary ◽

P. V. Nagamani

Keyword(s):

Indian Ocean ◽

Surface Temperature ◽

Sea Surface Temperature ◽

Tropical Indian Ocean ◽

Sea Surface

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Nutrient enrichment induced by tropical cyclone Seroja in the southeastern tropical Indian Ocean

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/925/1/012021 ◽

2021 ◽

Vol 925 (1) ◽

pp. 012021

Author(s):

D W Purnaningtyas ◽

F Khadami ◽

Avrionesti

Keyword(s):

Tropical Cyclone ◽

Indian Ocean ◽

Surface Temperature ◽

Sea Surface Temperature ◽

Nutrient Enrichment ◽

Tropical Indian Ocean ◽

Sea Surface ◽

Nutrient Concentrations ◽

Biochemical Alterations ◽

Southeastern Tropical Indian Ocean

Abstract Tropical cyclone (TC) passage triggers a complex response from the adjacent ocean, including vertical mixing, leading to biochemical alterations and affecting the surrounding ecosystem’s dynamics. In previous studies, increased nutrient concentrations and primary production were observed along the cyclone track after the storm. TC Seroja was awakened near the equator in the southeastern tropical Indian Ocean, making it interesting to investigate how the ambient ecosystem responds. Hence, we analyzed the sea surface temperature and nutrient changes during the Seroja event using multi-satellite remote sensing and numerical model data in the south of Indonesia and East Timor along the Seroja track between April 2 and 10, 2021. Immediately after the TC Seroja passed, the sea surface temperature cooled to 3 °C around the TC lane. At the same time, the spatial distribution patterns showed the upsurge of some nutrients in response to the passage of TC Seroja; the surface nitrate swells up to 1.5 mmol/m3, while phosphate increased up to 0.2 mmol/m3, and the dissolved silicate concentration enhanced up to 1.0 mmol/m3. The responses recover within 2-7 days. These results indicate that tropical cyclones contribute to nutrient enrichment in oligotrophic areas outside of their usual annual upwelling time, thereby further supporting ecosystem sustainability.

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