Browsing by Author "Rixen, T."
Now showing items 1-13 of 13
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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 ... -
Glacial-interglacial changes and Holocene variations in Arabian Sea denitrification
Gaye, B.; Boll, A.; Segschneider, J.; Burdanowitz, N.; Emeis, K.-C.; Ramaswamy, V.; Lahajnar, N.; Luckge, A.; Rixen, T. (2018)At present, the Arabian Sea has a permanent oxygen minimum zone (OMZ) at water depths between about 100 and 1200 m. Active denitrification in the upper part of the OMZ is recorded by enhanced δ15N values in the sediments. ... -
Late holocene primary productivity and sea surface temperature variations in the northeastern Arabian Sea: Implications for winter monsoon variability.
Boll, A.; Luckge, A.; Munz, P.; Forke, S.; Schulz, H.; Ramaswamy, V.; Rixen, T.; Gaye, B.; Emeis, K.-C. (American Geophysical Union, 2014)Variability in the oceanic environment of the Arabian Sea region is strongly influenced by the seasonal monsoon cycle of alternating wind directions. Prominent and well studied is the summer monsoon, but much less is known ... -
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 ... -
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 ... -
Seasonality and interannual variability of particle-fluxes to the deep Arabian Sea
Haake, B.; Ittekkot, V.; Rixen, T.; Ramaswamy, V.; Nair, R.R.; Curry, W.B. (Pergamon, 1993)Long-term sediment trap studies have been carried out since 1986 at three locations in the western, central and eastern Arabian Sea. Total and bulk component fluxes measured for 3 years at the central station and for 4 ... -
Sedimentation
Rixen, T.; Guptha, M.V.S.; Ittekkot, V. (JGOFS International Project Office, University of Bergen, Norway, 2002)The Monsoonal impact on the deep ocean fluxes, organic carbon export into the ocean's interior, and the difference between the deep-sea organic carbon fluxes and sedimentary organic carbon burial rates in the Arabian Sea ... -
Sources of laminated sediments in the northeastern Arabian Sea off Pakistan and implications for sediment transport mechanisms during the late Holocene
Forke, S.; Rixen, T.; Burdanowitz, N.; L�ckge, A.; Ramaswamy, V.; Munz, P.; Wilhelms-Dick, D.; Vogt, C.; Kasten, S.; Gaye, B. (SAGE Publications, 2019)Laminated sediments of the continental slope off the Makran coast in the northern Arabian Sea are well-known climate archives and record productivity, as well as supply of material from land. Here, we studied sediment core ... -
Stable nitrogen isotopic ratios of sinking particles and sediments from the northern Indian Ocean
Gaye-Haake, G.; Lahajnar, N.; Emeis, K.-Ch.; Unger, D.; Rixen, T.; Suthhof, A.; Ramaswamy, V.; Schulz, H.; Paropkari, A.L.; Guptha, M.V.S.; Ittekkot, V. (Elsevier, 2005)Delta sup(15)N values in modern sediments of the northern Indian Ocean range from less than 4 ppt in the northern Bay of Bengal to greater than 11 ppt in the central Arabian Sea due to the strong spatial variability of ... -
The ballast effect of lithogenic matter and its influences on the carbon fluxes in the Indian Ocean
Rixen, T.; Gaye, B.; Emeis, K.-C.; Ramaswamy, V. (European Geosciences Union, 2019)Data obtained from long-term sediment trap experiments in the Indian Ocean in conjunction with satellite observations illustrate the influence of primary production and the ballast effect on organic carbon flux into the ... -
Vulnerability of semi-enclosed marine systems to environmental disturbances
MacCracken, M.; Escobar-Briones, E.; Gilbert, D.; Korotaev, G.; Naqvi, S.W.A.; Perillo, G.M.E.; Rixen, T.; Stanev, E.; Sundby, B.; Thomas, H.; Unger, D.; Urban, E.R. (Island Press, 2009)Semi-enclosed marine systems (SEMSs) are impacted on time scales ranging from the very short (days or less) to the very long (decades and beyond) by many of the same forces and stresses as other components of the Earth ...