Browsing by Author "Ittekkot, V."
Now showing items 1-20 of 28
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Biogeochemical processes in the northern Indian Ocean
Gaye-Haake, B.; Guptha, M.V.S.; Murty, V.S.N.; Ittekkot, V. (Elsevier, 2005) -
Coupling between SW monsoon-related surface and deep ocean processes as discerned from continuous particle flux measurements and correlated satellite data
Rixen, T.; Haake, B.; Ittekkot, V.; Guptha, M.V.S.; Nair, R.R.; Schlussel, P. (American Geophysical Union, 1996)Particle flux data obtained by time series sediment traps deployed at water depths of approximately 3000 m in the western, central, and eastern Arabian Sea since 1986 were compared with wind speeds derived from measurements ... -
Deep ocean fluxes and their link to surface ocean processes and the biological pump
Rixen, T.; Guptha, M.V.S.; Ittekkot, V. (Elsevier, 2005)Intense studies of upper and deep ocean processes were carried out in the Northwestern Indian Ocean (Arabian Sea) within the framework of JGOFS and related projects in order to improve our understanding of the marine carbon ... -
Downward flux of particulate fatty acids in the Central Arabian Sea
Reemtsma, T.; Haake, B.; Ittekkot, V.; Nair, R.R.; Brockmann, U.H. (Elsevier, 1990) -
Dynamics of dissolved organic carbon in the northwestern Indian Ocean
DileepKumar, M.; Rajendran, A.; Somasundar, K.; Haake, B.; Jenisch, A.; Shuo, Z.; Ittekkot, V.; Desai, B.N. (Elsevier, 1990) -
Enhanced particle fluxes in Bay of Bengal inducEd. by injection of freshwater
Ittekkot, V.; Nair, R.R.; Honjo, S.; Ramaswamy, V.; Bartsch, M.; Manganini, S.J.; Desai, B.N. (Macmillan, 1991)The melting of ice sheets during deglaciation results in the injection of large amounts of fresh water into the oceans. To investigate how such injections might influence particle fluxes in the ocean, and hence the uptake ... -
Fluxes of amino acids and hexosamines to the deep Arabian sea
Haake, B.; Ittekkot, V.; Ramaswamy, V.; Nair, R.R.; Honjo, S. (Elsevier, 1992)Results of organic carbon, total nitrogen, amino acid and hexosamine of samples collected during time-series sediment trap in investigations in the Arabian Sea are presented. Samples were taken over a period of 1 1/2 years ... -
Foraminiferal production and monsoonal upwelling in the Arabian sea: evidence from sediment traps
Curry, W.B.; Ostermann, D.R.; Guptha, M.V.S.; Ittekkot, V. (Geological Society of London, 1992)Planktonic foraminifera collected in sediment traps in the Arabian Sea during 1986 and 1987 responded to the southern Asian monsoon with changes in productivity, relative abundance of species and isotopic shell chemistry. ... -
Fresh water influx and particle flux variability in the Bay of Bengal
Schafer, P.; Ittekkot, V.; Bartsch, M.; Nair, R.R.; Tiemann, J. (John Wiley and Sons, Chichester, 1996) -
Increased particle flux to the deep ocean related to monsoons
Nair, R.R.; Ittekkot, V.; Manganini, S.J.; Ramaswamy, V.; Haake, B.; Degens, E.T.; Desai, B.N.; Honjo, S. (Nature Publishing Group, 1989)Monsoons cause seasonal reversals in the surface circulation of the northern Indian Ocean. In the Arabian Sea this results in the upwelling of nutrient-rich water along the coasts, making it one of the highly productive ... -
Lithogenic fluxes in the Bay of Bengal measured by sediment traps
Ramaswamy, V.; VijayKumar, B.; Parthiban, G.; Ittekkot, V.; Nair, R.R. (Pergamon, 1997) -
Lithogenic fluxes to the deep Arabian Sea measurEd. by sediment traps
Ramaswamy, V.; Nair, R.R.; Manganini, S.J.; Haake, B.; Ittekkot, V. (Pergamon, 1991)Particle fluxes measured continuously for one year at three locations in the Arabian Sea using time-series sediment traps show that lithogenic sedimentation processes are strongly coupled to biological processes. The ... -
Monsoonal and ENSO impacts on particle fluxes and the biological pump in the Indian Ocean
Rixen, T.; Ramaswamy, V.; Gaye, B.; Herunadi, B.; Maier-Reimer, E.; Bange, H.W.; Ittekkot, V. (American Geophysical Union, 2009)Data obtained by sediment trap experiments in the Indian Ocean were evaluated in conjunction with additional information derived mainly from the Joint Global Ocean Flux Study (JGOFS) expeditions in 1994/1995. Our results ... -
Natural and human-induced hypoxia and consequences for coastal areas: Synthesis and future development
Zhang, J.; Gilbert, D.; Gooday, A.J.; Levin, L.; Naqvi, S.W.A.; Middelburg, J.J.; Scranton, M.; Ekau, W.; Pena, A.; Dewitte, B.; Oguz, T.; Monteiro, M.S.; Urban, E.; Rabalais, N.N.; Ittekkot, V.; Kemp, W.M.; Ulloa, O.; Elmgren, R.; Escobar-Briones, E.; Van der Plas, A.K. (European Geosciences Union, 2010)Hypoxia has become a world-wide phenomenon in the global coastal ocean and causes a deterioration of the structure and function of ecosystems. Based on the collective contributions of members of SCOR Working Group 128, the ... -
Organic carbon removal in the sea: the continental connection
Ittekkot, V.; Haake, B.; Bartsch, M.; Nair, R.R.; Ramaswamy, V. (Geological Society of London, 1992)Time series sediment traps have been deployed since May 1986 in the Arabian Sea and since October 1987 in the Bay of Bengal. The results of one and a half years from the western, central, and eastern Arabian Sea and of one ... -
Processes controlling carbon components in the Arabian Sea
DileepKumar, M.; Rajendran, R.; Somasundar, K.; Ittekkot, V.; Desai, B.N. (Oxford and IBH, New Delhi, 1992)Data on carbon dioxide components, collected just before SW monsoon 1986, have been analysed. Total carbon dioxide (TCO sub(2)) and titration alkalinity are higher in the northern and western Arabian Sea compared to those ... -
Processes determining seasonality and interannual variability of settling particle fluxes to the deep Arabian Sea
Haake, B.; Rixen, T.; Reemtsma, T.; Ramaswamy, V.; Ittekkot, V. (John Wiley and Sons, Chichester, 1996) -
Radionuclide fluxes in the Arabian Sea: The role of particle composition
Scholten, J.C.; Fietzke, J.; Mangini, A.; Stoffers, P.; Rixen, T.; Gaye-Haake, B.; Blanz, T.; Ramaswamy, V.; Sirocko, F.; Schulz, H.; Ittekkot, V. (Elsevier, 2005)The influence of the composition of the vertical particle flux on the removal of particle reactive natural radionuclides (sup(230)Th and sup(231)Pa) from the water column to the sediments is investigated. Radionuclide ... -
River inputs and organic matter fluxes in the northern Bay of Bengal: Fatty acids
Reemtsma, T.; Ittekkot, V.; Bartsch, M.; Nair, R.R. (Elsevier, 1993)Total particulate matter flux and organic carbon and fatty acid fluxes associated with settling particles collected during the summer-monsoon period of 1988 using time-series sediment traps deployed at two depths (809 and ... -
Seasonal and spatial variations in settling manganese fluxes in the northern Arabian Sea
Nair, T.M.B.; Ramaswamy, V.; Shankar, R.; Ittekkot, V. (Pergamon, 1999)Particulate manganese (Mn) fluxes measured with six time series sediment traps showed that the annual settling fluxes were 3-6 times higher in the west compared to those in the east and central Arabian Sea. Annual detrital ...