Frequency of Cyclonic Disturbances and Changing Productivity Patterns in the North Indian Ocean Region: A Study Using Sea Surface Temperature and Ocean Colour Data

Abstract Satellite remotely sensed oceanographic data provide reliable global ocean coverage of sea surface temperature, sea surface height, surface winds, and ocean colour, with relatively high spatial and temporal resolution. We illustrate approaches to use these data to construct indicators that describe aspects of ecosystem dynamics in the North Pacific. Specifically, altimetry data are used to construct regional indicators of the ocean vertical structure, ocean colour data to describe the temporal chlorophyll dynamics of the coastal zone, ocean colour, sea surface temperature, and altimetry data to develop indices of biologically important ocean features, and finally altimetry data to drive a larval transport model and develop an index of larval retention. Recent changes in the North Pacific based on these indices are discussed.

Download Full-text

Iranian surface air temperature periodicities and correlations with the North Atlantic and Indian Ocean sea surface temperature variations

Meteorological Applications ◽

10.1002/met.1625 ◽

2017 ◽

Vol 24 (2) ◽

pp. 268-275 ◽

Cited By ~ 3

Author(s):

Madjid Abbasi ◽

Saeed Mashhadizadeh Maleki

Keyword(s):

Indian Ocean ◽

Surface Temperature ◽

Sea Surface Temperature ◽

Air Temperature ◽

North Atlantic ◽

Surface Air Temperature ◽

Sea Surface ◽

Temperature Variations ◽

The North ◽

The North Atlantic

Download Full-text

Meridional Distribution of Surface CO2 along 67°E of the Indian Ocean

10.5194/egusphere-egu2020-20849 ◽

2020 ◽

Author(s):

Dong-Jin Kang ◽

Sang-Hwa Choi ◽

Daeyeon Kim ◽

Gyeong-Mok Lee

Keyword(s):

Indian Ocean ◽

Surface Temperature ◽

Sea Surface Temperature ◽

Sea Surface ◽

Sea Surface Salinity ◽

Surface Seawater ◽

Surface Salinity ◽

The North ◽

The Indian Ocean ◽

North And South

Surface seawater carbon dioxide was observed from 3 &#176;S to 27 &#176;S along 67 &#176;E of the Indian Ocean in April 2018 and 2019. Partial pressure of CO2(pCO2) in the surface seawater and the atmosphere were observed every two minutes using an underway CO2 measurement system (General Oceanics Model 8050) installed on R/V Isabu. Surface water temperature and salinity were measured as well. The pCO2 was measured using Li-7000 NDIR. Standard gases were measured every 8 hours in five classes with concentrations of 0 &#181;atm, 202 &#181;atm, 350 &#181;atm, 447 &#181;atm, and 359.87 &#181;atm. The fCO2 of atmosphere remained nearly constant at 387 &#177; 2 &#181;atm, but the surface seawater fCO2 peaked at about 3 &#176;S and tended to decrease toward the north and south. The distribution of fCO2 in surface seawater according to latitude tends to be very similar to that of sea surface temperature. In order to investigate the factors that control the distribution of fCO2 in surface seawater, we analyzed the sea surface temperature, sea surface salinity, and other factors. The effects of salinity are insignificant, and the surface fCO2 distribution is mainly controlled by sea surface temperature and other factors that can be represented mainly by biological activity and mixing.

Download Full-text