Temporal variations of pCO2 in surface seawater of the Arabian Sea in 1995

Goyet, Catherine; Millero, Frank J.; O’Sullivan, Daniel W.; Eischeid, Greg; McCue, S. J.; Bellerby, Rgj

doi:10.1016/s0967-0637(97)00085-x

Cited by 101 publications

(78 citation statements)

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“…The deepening of mixed-layer from late fall to winter is caused by the vigorous vertical mixing induced by winter cooling and increased wind stress as a much stronger northeast (winter) monsoon prevails in the SCS during this season Tseng et al 2005). A similar monsoon-induced temperature forcing and convective mixing during northeast monsoon and inter-monsoon seasons are also observed in the central Arabian Sea (Goyet et al 1998;Sarma et al 1998;2000).…”

Section: The Seasonal Patterns Of Tco 2 / Ntco 2 Ta/nta and Fco 2 Imentioning

confidence: 67%

Seasonal Variability of Carbon Chemistry at the SEATS Site, Northern South China Sea Between 2002 and 2003

Chou¹,

Sheu²,

Chen³

et al. 2005

Terr. Atmos. Ocean. Sci.

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Section: The Seasonal Patterns Of Tco 2 / Ntco 2 Ta/nta and Fco 2 Imentioning

confidence: 67%

Seasonal Variability of Carbon Chemistry at the SEATS Site, Northern South China Sea Between 2002 and 2003

Chou¹,

Sheu²,

Chen³

et al. 2005

Terr. Atmos. Ocean. Sci.

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“…Other high productive regions in the northern Indian Ocean are associated with both high nutrients and pCO 2 due to vertical mixing, such as upwelling zones (Goyet et al, 1998;Barber et al, 2001). In contrast, fluvial inputs of nutrients decrease pCO 2 levels on one hand and high pCO 2 driven by heterotrophy in the inner estuary enhances pCO 2 levels on other hand along the west coast of Bay of Bengal.…”

Section: Discussionmentioning

confidence: 99%

Sources and sinks of CO<sub>2</sub> in the west coast of Bay of Bengal

Sarma¹,

Krishna²,

Rao³

et al. 2012

Tellus B: Chemical and Physical Meteorology

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A B S T R A C TObservations at high spatial resolution (100 )50 km 2 ) in the western continental shelf of Bay of Bengal during southwest monsoon, when peak discharge occurs into the Bay through major rivers of the Indian subcontinent, revealed that freshwater discharge exerts dominant control on the inorganic carbon components in surface waters. Lower than present atmospheric pCO 2 levels were found in the northwestern (NW) than southwestern (SW) coastal Bay of Bengal. The pCO 2 levels in the peninsular rivers were an order of magnitude higher (5000Á 17000 matm) than that of atmospheric levels and glacial river Ganges ( Â500 matm). The discharge from the peninsular rivers has a stronger influence in the SW region, whereas the Ganges river discharge has a stronger influences in the NW region. Source or sink of CO 2 in the shelf region depends on the discharged river characteristics and the East India Coastal Current that distributes discharged water along the coast. Although during northeast monsoon, the situation is briefly reversed and the region acts as a sink, and on annual scale, the western Bay of Bengal acts as a source for atmospheric CO 2 than hitherto hypothesised.

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“…phytoplankton and bacteria), oxygen and CO 2 in temperate coastal and estuarine systems (Shiah and Ducklow, 1994;Borges et al, 2006), while subtropical coasts have been less well investigated. Many subtropical coastal waters are subjected to seasonal monsoons, northeast monsoonal winds in winter and the southwest monsoon in spring and summer, which considerably influenced biogeochemical cycling (Goyet et al, 1998;Mintrop et al, 1999;Yin, 2002Yin, , 2003. For example, in the Arabian Sea and northwestern Indian Ocean, seasonal…”

Section: Introductionmentioning

confidence: 99%

“…X.-C. Yuan et al: Influence of seasonal monsoons on net community production variations in primary production and CO 2 release were closely associated with the influences of monsoons (Goyet et al, 1998;Mintrop et al, 1999;Lendt et al, 2003). Similarly, the subtropical coastal waters adjacent to the Pearl River estuary were also reported to be influenced by the seasonal monsoon.…”

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confidence: 98%

Influence of seasonal monsoons on net community production and CO<sub>2</sub> in subtropical Hong Kong coastal waters

et al. 2011

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Abstract. Data from seven cruises in three different environments including the Pearl River estuary, sewage discharge outfall, and eastern coastal/shelf waters were used to examine the seasonal variations in net community production (NCP) and the biologically active gases O 2 and CO 2 . In the winter dry season, when monsoon-induced downwelling was dominant, NCP was negative (−84 ± 50 mmol C m −2 d −1 ) in all three regions. The negative NCP corresponded to O 2 influxes of 100 ± 50 mmol O 2 m −2 d −1 and CO 2 effluxes of 24 ± 10 mmol C m −2 d −1 . In the summer wet season, when upwelling brought the deep oceanic waters to the coast due to the southwest monsoonal winds, there was a 2 to 15-fold increase in integrated primary production (IPP) compared to winter. The increase in IPP was likely due to the favorable conditions such as stratification and the nutrient inputs from upwelled waters and the Pearl River estuary. NCP in the mixed layer reached up to 110 ± 48 mmol C m −2 d −1 in the wet season. However, accompanying the high positive NCP, we observed an O 2 influx of 100 ± 60 mmol O 2 m −2 d −1 and CO 2 efflux of 21 ± 15 mmol C m −2 d −1 . The contradictory observation of positive NCP and CO 2 release and O 2 uptake in the mixed layer could be explained by the influence of the southwest monsoon-induced upwelling along with the influence of the Pearl River, as the upwelling brought cold, low dissolved oxygen (DO, 160 ± 30 µM) and high dissolved inorganic carbon (DIC, 1960 ± 100 µatm) water to the surface in the wet season. Hence, the subtropical Hong KongCorrespondence to: K. Yin (yinkd@mail.sysu.edu.cn) coastal waters are generally a CO 2 source due to the monsoonal influence during both the dry-heterotrophic and wetautotrophic seasons.

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Temporal variations of pCO2 in surface seawater of the Arabian Sea in 1995

Cited by 101 publications

References 0 publications

Seasonal Variability of Carbon Chemistry at the SEATS Site, Northern South China Sea Between 2002 and 2003

Seasonal Variability of Carbon Chemistry at the SEATS Site, Northern South China Sea Between 2002 and 2003

Sources and sinks of CO<sub>2</sub> in the west coast of Bay of Bengal

Influence of seasonal monsoons on net community production and CO<sub>2</sub> in subtropical Hong Kong coastal waters

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Temporal variations of pCO2 in surface seawater of the Arabian Sea in 1995

Cited by 101 publications

References 0 publications

Seasonal Variability of Carbon Chemistry at the SEATS Site, Northern South China Sea Between 2002 and 2003

Seasonal Variability of Carbon Chemistry at the SEATS Site, Northern South China Sea Between 2002 and 2003

Sources and sinks of CO<sub>2</sub> in the west coast of Bay of Bengal

Influence of seasonal monsoons on net community production and CO&lt;sub&gt;2&lt;/sub&gt; in subtropical Hong Kong coastal waters

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Influence of seasonal monsoons on net community production and CO<sub>2</sub> in subtropical Hong Kong coastal waters