Search Results - "Stramma, L"

Mismatch between observed and modeled trends in dissolved upper-ocean oxygen over the last 50 yr by Stramma, L, Oschlies, A, Schmidtko, S

“…Observations and model runs indicate trends in dissolved oxygen (DO) associated with current and ongoing global warming. However, a large-scale…”
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On the role of mesoscale eddies for the biological productivity and biogeochemistry in the eastern tropical Pacific Ocean off Peru by Stramma, L, Bange, H. W, Czeschel, R, Lorenzo, A, Frank, M

“…Mesoscale eddies seem to play an important role for both the hydrography and biogeochemistry of the eastern tropical Pacific Ocean (ETSP) off Peru. However,…”
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On the role of circulation and mixing in the ventilation of oxygen minimum zones with a focus on the eastern tropical North Atlantic by Brandt, P, Bange, H. W, Banyte, D, Dengler, M, Didwischus, S.-H, Fischer, T, Greatbatch, R. J, Hahn, J, Kanzow, T, Karstensen, J, Körtzinger, A, Krahmann, G, Schmidtko, S, Stramma, L, Tanhua, T, Visbeck, M

“…Ocean observations are analysed in the framework of Collaborative Research Center 754 (SFB 754) "Climate-Biogeochemistry Interactions in the Tropical Ocean" to…”
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An eddy-stimulated hotspot for fixed nitrogen-loss from the Peru oxygen minimum zone by Altabet, M. A, Ryabenko, E, Stramma, L, Wallace, D. W. R, Frank, M, Grasse, P, Lavik, G

“…Fixed nitrogen (N) loss to biogenic N2 in intense oceanic O2 minimum zones (OMZ) accounts for a large fraction of the global N sink and is an essential control…”
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Physical and biogeochemical forcing of oxygen and nitrate changes during El Niño/El Viejo and La Niña/La Vieja upper-ocean phases in the tropical eastern South Pacific along 86° W by Llanillo, P. J., Karstensen, J., Pelegrí, J. L., Stramma, L.

“…Temporal changes in the water mass distribution and biogeochemical signals in the tropical eastern South Pacific are investigated with the help of an extended…”
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Circulation, eddies, oxygen, and nutrient changes in the eastern tropical South Pacific Ocean by Czeschel, R, Stramma, L, Weller, R. A, Fischer, T

“…A large subsurface oxygen deficiency zone is located in the eastern tropical South Pacific Ocean (ETSP). The large-scale circulation in the eastern equatorial…”
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The flow field of the upper hypoxic eastern tropical North Atlantic oxygen minimum zone by Stramma, L, Czeschel, R, Tanhua, T, Brandt, P, Visbeck, M, Giese, B. S

“…A subsurface low oxygen zone is located in the eastern tropical North Atlantic Ocean (ETNA) in the upper ocean with the core of the hypoxic (O2 ≦60 µmol kg−1)…”
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The flow field of the subtropical gyre of the South Indian Ocean by Stramma, L., Lutjeharms, J. R. E.

“…The mean state of the transport field of the subtropical gyre of the South Indian Ocean has been derived for the upper 1000 m from selected historical…”
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Oxygen minimum zones in the eastern tropical Atlantic and Pacific oceans by Karstensen, Johannes, Stramma, Lothar, Visbeck, Martin

“…Within the eastern tropical oceans of the Atlantic and Pacific basin vast oxygen minimum zones (OMZ) exist in the depth range between 100 and 900m. Minimum…”
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Tropical deoxygenation sites revisited to investigate oxygen and nutrient trends by Stramma, Lothar, Schmidtko, Sunke

“…An oxygen decrease of the intermediate-depth low-oxygen zones (300 to 700 m) is seen in time series for selected tropical areas for the period 1960 to 2008 in…”
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Nitrogen cycling driven by organic matter export in the South Pacific oxygen minimum zone by Kalvelage, Tim, Lavik, Gaute, Lam, Phyllis, Contreras, Sergio, Arteaga, Lionel, Löscher, Carolin R., Oschlies, Andreas, Paulmier, Aurélien, Stramma, Lothar, Kuypers, Marcel M. M.

“…Oxygen minimum zones are expanding globally, and at present account for around 20–40% of oceanic nitrogen loss. Heterotrophic denitrification and…”
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Deep water masses and transports in the Vema Fracture Zone by Fischer, J., Rhein, M., Schott, F., Stramma, L.

“…Recent results from hydrographic, chlorofluoromethane (CFM) and current measurements during an R.V. Meteor cruise in February/March 1994 underscore the…”
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On the water masses and mean circulation of the South Atlantic Ocean by Stramma, Lothar, England, Matthew

“…We examine recent observations of water mass distribution and circulation schemes at different depths of the South Atlantic Ocean to propose a layered,…”
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Trends and decadal oscillations of oxygen and nutrients at 50 to 300 m depth in the equatorial and North Pacific by Stramma, Lothar, Schmidtko, Sunke, Bograd, Steven J, Ono, Tsuneo, Ross, Tetjana, Sasano, Daisuke, Whitney, Frank A

“…A strong oxygen-deficient layer is located in the upper layers of the tropical Pacific Ocean and deeper in the North Pacific. Processes related to climate…”
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Observed El Niño conditions in the eastern tropical Pacific in October 2015 by Stramma, Lothar, Fischer, Tim, Grundle, Damian S., Krahmann, Gerd, Bange, Hermann W., Marandino, Christa A.

“…A strong El Niño developed in early 2015. Measurements from a research cruise on the R/V Sonne in October 2015 near the Equator east of the Galapagos Islands…”
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Transport, properties, and life cycles of mesoscale eddies in the eastern tropical South Pacific by Czeschel, Rena, Schütte, Florian, Weller, Robert A, Stramma, Lothar

“…The influence of mesoscale eddies on the flow field and the water masses, especially the oxygen distribution of the eastern tropical South Pacific, is…”
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Water masses and currents in the upper tropical northeast Atlantic off northwest Africa by Stramma, Lothar, Hüttl, Sabine, Schafstall, Jens

“…Recent current measurements in the tropical eastern North Atlantic reproduce the components of the large scale flow field. However, the observations as well as…”
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Physical and biogeochemical forcing of oxygen and nitrate changes during El Nino/El Viejo and La Nina/La Vieja upper-ocean phases in the tropical eastern South Pacific along 86 degree W by Llanillo, P J, Karstensen, J, Pelegri, J L, Stramma, L

“…Temporal changes in the water mass distribution and biogeochemical signals in the tropical eastern South Pacific are investigated with the help of an extended…”
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Physical and biogeochemical forcing of oxygen and nitrate changes during El Ni?o/El Viejo and La Ni?a/La Vieja upper-ocean phases in the tropical eastern South Pacific along 86? W by Llanillo, P J, Karstensen, J, Pelegrí, J L, Stramma, L

“…Temporal changes in the water mass distribution and biogeochemical signals in the tropical eastern South Pacific are investigated with the help of an extended…”
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The mean flow field of the tropical Atlantic Ocean by Stramma, Lothar, Schott, Friedrich

“…The mean horizontal flow field of the tropical Atlantic Ocean is described between 20°N and 20°S from observations and literature results for three layers of…”
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