Aerosols over the Arabian Sea: Atmospheric transport pathways and concentrations of dust and sea salt

Tindale, Neil; Pease, Patrick

doi:10.1016/s0967-0645(99)00036-3

Cited by 137 publications

(79 citation statements)

References 38 publications

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“…However, when the southwest winds are weak, such as during a break period, the inversion moves eastward toward the Indian subcontinent and material contained within the northwesterly winds can be transported further out into the Arabian Sea (Figure 6). Transportation of eolian material to the interior of the Arabian Sea is therefore strongly dependent upon the moist southwesterly winds of the summer monsoon (Tindale and Pease, 1999). Accordingly, the spatial extent of 13 C-depleted plant wax fatty acids (Figure 4a) and high dolomite accumulation rates ( Figure 5) correlate well with the approximate position of the monsoon inversion during an active phase, as determined by Narayanan and Rao (1981, Figure 6).…”

Section: Controls On the Deposition Of Plant Waxes In The Arabian Seamentioning

confidence: 71%

“…The main source of dust to the Arabian Sea is the Arabian Peninsula/Mesopotamia region (Tindale and Pease, 1999, and references therein). The two other primary dust sources are Eastern Africa and the Asian continent (e.g.…”

Section: Sedimentation In the Arabian Seamentioning

confidence: 99%

“…Tindale and Pease, 1999;Sirocko et al, 2000). Satellite, sediment trap, and surface sediment data have demonstrated that the northeast monsoon does not transport significant quantities of dust to the Arabian Sea (Sirocko and Sarnthein, 1989;Clemens, 1998;Schulz et al, 2002).…”

Section: Accumulation Ratesmentioning

confidence: 99%

“…Despite their strength, the summer southwest monsoon winds are not the primary carriers of dust to the interior of the Arabian Sea because the Findlater Jet forms in the relatively dust free equatorial region near the African margin (Tindale and Pease, 1999). Nevertheless, African dust, with a characteristically high Zr/Hf ratio, has been identified in core-top sediments, which sug-gests that dust deposition during the southwest monsoon is significant .…”

Section: Accumulation Ratesmentioning

confidence: 99%

“…The main source of mineral dust to the Arabian Sea is the Arabian Peninsula, over which northwesterly winds blow during the summer (Sirocko and Sarnthein, 1989;Tindale and Pease, 1999, and references therein). The aridity and availability of desert dust in the APM region allows for efficient advection of fine material, even though the northwesterly winds are less intense than the winds of both the southwest and northeast monsoons.…”

Section: Accumulation Ratesmentioning

confidence: 99%

See 4 more Smart Citations

Terrigenous plant wax inputs to the Arabian Sea: Implications for the reconstruction of winds associated with the Indian Monsoon

Dahl

Oppo

Eglinton

et al. 2005

Geochimica et Cosmochimica Acta

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We have determined the accumulation rates and carbon isotopic compositions (δ 13 C) of longchain (C 24 -C 32 ) terrigenous plant wax fatty acids in 19 surface sediment samples geographically distributed throughout the Arabian Sea in order to assess the relationship between plant wax inputs and the surrounding monsoon wind systems. Both the accumulation rate data and the δ 13 C data show that there are three primary eolian sources of plant waxes to the Arabian Sea: Africa, Asia, and the Arabian Peninsula. These sources correspond to the three major wind systems in this region: the summer (Southwest) monsoon, the winter (Northeast)

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Section: Controls On the Deposition Of Plant Waxes In The Arabian Seamentioning

confidence: 71%

Section: Sedimentation In the Arabian Seamentioning

confidence: 99%

Section: Accumulation Ratesmentioning

confidence: 99%

Section: Accumulation Ratesmentioning

confidence: 99%

Section: Accumulation Ratesmentioning

confidence: 99%

See 3 more Smart Citations

Terrigenous plant wax inputs to the Arabian Sea: Implications for the reconstruction of winds associated with the Indian Monsoon

Dahl

Oppo

Eglinton

et al. 2005

Geochimica et Cosmochimica Acta

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Potential new production in two upwelling regions of the western Arabian Sea: Estimation and comparison

Liao

Zhan

2016

JGR Oceans

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Using satellite‐derived and in situ data, the wind‐driven potential new production (nitrate supply) for the 300 km wide coastal band in two upwelling regions of the western Arabian Sea (AS) during the southwest monsoon is estimated. The upward nitrate flux to the euphotic zone is generally based on the physical processes of coastal transport (Ekman transport and geostrophic transport) and offshore Ekman pumping. The coastal geostrophic current in the western AS influences the upwelling intensity and latitudinal distributions of nitrate supply. The Oman and Somalia upwelling regions have similar level of potential new production (nitrate supply) during the summer monsoon, while the satellite estimates of primary production off Oman are 2 times greater than those off Somalia. The much higher potential f‐ratio in the Somalia upwelling region indicates that the primary production could be limited by availability of other macronutrients (e.g., silicate). The correlation analysis of the primary production and the aerosol optical thickness shows that the Oman upwelling region displays a stronger coupling between the atmospheric deposition and the phytoplankton abundance. The high summertime dust levels in the atmosphere are suggested to contribute to the high primary production in the Oman upwelling region.

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The Transport of Material to the Oceans: The Atmospheric Pathway

2012

Marine Geochemistry

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Aerosols over the Arabian Sea: Atmospheric transport pathways and concentrations of dust and sea salt

Cited by 137 publications

References 38 publications

Terrigenous plant wax inputs to the Arabian Sea: Implications for the reconstruction of winds associated with the Indian Monsoon

Terrigenous plant wax inputs to the Arabian Sea: Implications for the reconstruction of winds associated with the Indian Monsoon

Potential new production in two upwelling regions of the western Arabian Sea: Estimation and comparison

The Transport of Material to the Oceans: The Atmospheric Pathway

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