Koeve, Wolfgang

Dr. rer. nat. Wolfang Koeve

Scientist at Research Unit Biogeochemical Modelling

Research Interests

Marine carbon pumps
Biogeochemical feedback processes and climate change
Stoichiometry of the biological pump
Ocean dynamics and marine productivity
Large scale (global) budgets of ocean carbon fluxes

Education and Employment

since 2005 Research Scientist at IFM-GEOMAR, now GEOMAR | Helmholtz Centre for Ocean Research Kiel, Germany
2004 Visiting Research Scientist at SFB 460 (Christian-Abrechts-University of Kiel)
2003 CNRS Visiting Research Scientist at Laboratoire d'Etudes en Géophysique et Océanographie Spatiales, LEGOS, Toulouse, France
2001 – 2003 Research Scientist at Marum, Bremen University, Germany
2000 Visiting Professor at Université Paul Sabatier, Toulouse, France
2000 Research Scientist at IfM Kiel, Germany
1999 – 2000 Research Scientist at Institute for Baltic Sea Research, Warnemuende, Germany
1992 – 1999 Research Scientist at IfM Kiel, Planktology Department, Germany
1989 – 1991 PhD Student at IfM and Christian-Albrechts-University of Kiel, Germany
1987 – 1989 Community Service, Environmental Protection Agency, Towns Office, Kiel, Germany
1986 Dpiloma in Biological Oceanography, Benthos Department, IfM Kiel, Germany

Publications

Number of items: 137.

Articles in a Scientific Journal - peer-reviewed

Wood, R. A., Baker, J. A., Beaugrand, G., Boutin, J., Conversi, A., Donner, R. V., Frenger, I. , Goberville, E., Hayashida, H., Koeve, W. , Kvale, K., Landolfi, A., Maslowski, W., Oschlies, A. , Romanou, A., Somes, C. J. , Stocker, T. F. and Swingedouw, D. (2024) Opportunities for Earth Observation to Inform Risk Management for Ocean Tipping Points.

Surveys in Geophysics . DOI 10.1007/s10712-024-09859-3.

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Jürchott, M. , Koeve, W. and Oschlies, A. (2024) The response of the ocean carbon cycle to artificial upwelling, ocean iron fertilization and the combination of both.

Environmental Research Letters, 19 (11). Art.Nr.: 114088. DOI 10.1088/1748-9326/ad858d.

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Koeve, W. , Landolfi, A. , Oschlies, A. and Frenger, I. (2024) Marine carbon sink dominated by biological pump after temperature overshoot.

Nature Geoscience, 17 . pp. 1093-1099. DOI 10.1038/s41561-024-01541-y.

Almendra, I., Dewitte, B., Garçon, V., Muñoz, P., Parada, C., Montes, I., Duteil, O. , Paulmier, A., Pizarro, O., Ramos, M., Koeve, W. and Oschlies, A. (2024) Emergent constraint on oxygenation of the upper South Eastern Pacific oxygen minimum zone in the twenty-first century.

Communications Earth & Environment, 5 (1). Art.Nr. 284. DOI 10.1038/s43247-024-01427-2.

[thumbnail of Global Change Biology - 2024 - Frenger - Misconceptions of the marine biological carbon pump in a changing climate .pdf]

Frenger, I. , Landolfi, A. , Kvale, K. F. , Somes, C. J. , Oschlies, A. , Yao, W. and Koeve, W. (2024) Misconceptions of the marine biological carbon pump in a changing climate: Thinking outside the “export” box.

Global Change Biology, 30 (1). Art.Nr. e17124. DOI 10.1111/gcb.17124.

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Guo, H., Kriest, I. , Oschlies, A. and Koeve, W. (2023) Can oxygen utilization rate be used to track the long-term changes of aerobic respiration in the mesopelagic Atlantic ocean?.

Geophysical Research Letters, 50 (13). Art.Nr. e2022GL102645. DOI 10.1029/2022GL102645.

[thumbnail of Geophysical Research Letters - 2023 - J rchott - Artificial Upwelling A Refined Narrative.pdf]

Jürchott, M., Oschlies, A. and Koeve, W. (2023) Artificial Upwelling - a refined narrative.

Geophysical Research Letters, 50 (4). Art.Nr. e2022GL101870. DOI 10.1029/2022GL101870.

Kvale, K. F. , Hunt, C., James, A. and Koeve, W. (2023) Regionally disparate ecological responses to microplastic slowing of faecal pellets yields coherent carbon cycle response.

Frontiers in Marine Science, 10 . Art.Nr. 1111838. DOI 10.3389/fmars.2023.1111838.

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Chien, C. T. , Durgadoo, J. V. , Ehlert, D., Frenger, I. , Keller, D. P. , Koeve, W. , Kriest, I. , Landolfi, A. , Patara, L. , Wahl, S. and Oschlies, A. (2022) FOCI-MOPS v1 – Integration of Marine Biogeochemistry within the Flexible Ocean and Climate Infrastructure version 1 (FOCI 1) Earth system model.

Geoscientific Model Development, 15 . pp. 5987-6024. DOI 10.5194/gmd-15-5987-2022.

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Xue, T. , Frenger, I. , Oschlies, A. , Stock, C. A., Koeve, W. , John, J. G. and Prowe, A. E. F. (2022) Mixed Layer Depth Promotes Trophic Amplification on a Seasonal Scale.

Geophysical Research Letters, 49 (12). Art.Nr. e2022GL098720. DOI 10.1029/2022GL098720.

Yao, W., Kvale, K. F. , Koeve, W. , Landolfi, A. , Achterberg, E. P. , Bertrand, E. M. and Oschlies, A. (2022) Simulated future trends in marine nitrogen fixation are sensitive to model iron implementation.

Global Biogeochemical Cycles, 36 (3). Art. Nr. e2020GB006851. DOI 10.1029/2020GB006851.

Kvale, K. F. , Keller, D. P. , Koeve, W. , Meissner, K. J., Somes, C. J. , Yao, W. and Oschlies, A. (2021) Explicit silicate cycling in the Kiel Marine Biogeochemistry Model version 3 (KMBM3) embedded in the UVic ESCM version 2.9.

Geoscientific Model Development, 14 (12). pp. 7255-7285. DOI 10.5194/gmd-14-7255-2021.

[thumbnail of Data_Sheet_1_Can Top-Down Controls Expand the Ecological Niche of Marine N2 Fixers .pdf]

Landolfi, A. , Prowe, A. E. F. , Pahlow, M., Somes, C. J. , Chien, C. T. , Schartau, M. , Koeve, W. and Oschlies, A. (2021) Can top-down controls expand the ecological niche of marine N2 fixers?.

Frontiers in Microbiology, 12 . Art.Nr. 690200. DOI 10.3389/fmicb.2021.690200.

Kvale, K. F. , Koeve, W. and Mengis, N. (2021) Calcifying Phytoplankton Demonstrate an Enhanced Role in Greenhouse Atmospheric CO2 Regulation.

Frontiers in Marine Science, 7 . Art.Nr. 583989. DOI 10.3389/fmars.2020.583989.

Koeve, W. , Kähler, P. and Oschlies, A. (2020) Does export production measure transient changes of the biological carbon pump’s feedback to the atmosphere under global warming?.

Geophysical Research Letters, 47 (22). Art.Nr. e2020GL089928. DOI 10.1029/2020GL089928.

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Kriest, I. , Kähler, P., Koeve, W. , Kvale, K. F. , Sauerland, V. and Oschlies, A. (2020) One size fits all? Calibrating an ocean biogeochemistry model for different circulations.

Biogeosciences (BG), 17 . pp. 3057-3082. DOI 10.5194/bg-17-3057-2020.

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Resplandy, L., Keeling, R. F., Eddebbar, Y., Brooks, M. K., Wang, R., Bopp, L., Long, M. C., Dunne, J. P., Koeve, W. and Oschlies, A. (2019) Quantification of ocean heat uptake from changes in atmospheric O2 and CO2 composition.

Scientific Reports, 9 . Art.Nr. 20244. DOI 10.1038/s41598-019-56490-z.

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Reith, F., Koeve, W. , Keller, D. P. , Getzlaff, J. and Oschlies, A. (2019) Meeting climate targets by direct CO2 injections: what price would the ocean have to pay?.

Earth System Dynamics, 10 . pp. 711-727. DOI 10.5194/esd-10-711-2019.

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Yao, W., Kvale, K. F. , Achterberg, E. P. , Koeve, W. and Oschlies, A. (2019) Hierarchy of calibrated global models reveals improved distributions and fluxes of biogeochemical tracers in models with explicit representation of iron.

Environmental Research Letters, 14 (11). Art. Nr. 114009. DOI 10.1088/1748-9326/ab4c52.

+1 more...

Oschlies, A. , Koeve, W. , Landolfi, A. and Kähler, P. (2019) Loss of fixed nitrogen causes net oxygen gain in a warmer future ocean.

Nature Communications, 10 (1). Art.Nr. 2805. DOI 10.1038/s41467-019-10813-w.

Landolfi, A. , Kähler, P., Koeve, W. and Oschlies, A. (2018) Global Marine N2 Fixation Estimates: from Observations to Models.

Frontiers in Microbiology, 9 . Art.Nr. 2112. DOI 10.3389/fmicb.2018.02112.

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Feng, Y., Koeve, W. , Keller, D. P. and Oschlies, A. (2017) Model-based Assessment of the CO2 Sequestration Potential of Coastal Ocean Alkalinization.

Earth's Future, 5 (12). pp. 1252-1266. DOI 10.1002/2017EF000659.

Landolfi, A. , Somes, C. J. , Koeve, W. , Zamora, L. M. and Oschlies, A. (2017) Oceanic nitrogen cycling and N2 O flux perturbations in the Anthropocene.

Global Biogeochemical Cycles, 31 (8). pp. 1236-1255. DOI 10.1002/2017GB005633.

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Oschlies, A. , Duteil, O. , Getzlaff, J., Koeve, W. , Landolfi, A. and Schmidtko, S. (2017) Patterns of deoxygenation: sensitivity to natural and anthropogenic drivers.

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 375 (2102). p. 20160325. DOI 10.1098/rsta.2016.0325.

Koeve, W. and Kähler, P. (2016) Oxygen utilization rate (OUR) underestimates ocean respiration: A model study.

Global Biogeochemical Cycles, 30 (8). pp. 1166-1182. DOI 10.1002/2015GB005354.

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Lebrato, M., Andersson, A. J., Ries, J. B., Aronson, R. B., Lamare, M. D., Koeve, W. , Oschlies, A. , Iglesias-Rodriguez, M. D., Thatje, S., Amsler, M., Vos, S. C., Jones, D. O. B., Ruhl, H. A., Gates, A. R. and McClintock, J. B. (2016) Benthic marine calcifiers coexist with CaCO3-undersaturated seawater worldwide.

Global Biogeochemical Cycles, 30 (7). pp. 1038-1053. DOI 10.1002/2015GB005260.

Feng, E. Y., Keller, D. P. , Koeve, W. and Oschlies, A. (2016) Could artificial ocean alkalinization protect tropical coral ecosystems from ocean acidification?.

Environmental Research Letters, 11 (7). Art.Nr. 074008. DOI 10.1088/1748-9326/11/7/074008.

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Keller, D. P. , Kriest, I. , Koeve, W. and Oschlies, A. (2016) Southern Ocean biological impacts on global ocean oxygen.

Geophysical Research Letters, 43 (12). pp. 6469-6477. DOI 10.1002/2016GL069630.

Somes, C. J. , Landolfi, A. , Koeve, W. and Oschlies, A. (2016) Limited impact of atmospheric nitrogen deposition on marine productivity due to biogeochemical feedbacks in a global ocean model.

Geophysical Research Letters, 43 (9). pp. 4500-4509. DOI 10.1002/2016GL068335.

Koeve, W. , Wagner, H., Kähler, P. and Oschlies, A. (2015) 14C-age tracers in global ocean circulation models.

Geoscientific Model Development, 8 . pp. 2079-2094. DOI 10.5194/gmd-8-2079-2015.

Landolfi, A. , Koeve, W. , Dietze, H. , Kähler, P. and Oschlies, A. (2015) A new perspective on environmental controls of marine nitrogen fixation.

Geophysical Research Letters, 42 (11). pp. 4482-4489. DOI 10.1002/2015GL063756.

Koeve, W. , Duteil, O. , Oschlies, A. , Kähler, P. and Segschneider, J. (2014) Methods to evaluate CaCO3 cycle modules in coupled global biogeochemical ocean models.

Geoscientific Model Development, 7 . pp. 2393-2408. DOI 10.5194/gmd-7-2393-2014.

Duteil, O. , Koeve, W. , Oschlies, A. , Bianchi, D., Galbraith, E., Kriest, I. and Matear, R. (2013) A novel estimate of ocean oxygen utilisation points to a reduced rate of respiration in the ocean interior.

Biogeosciences (BG), 10 (11). pp. 7723-7738. DOI 10.5194/bg-10-7723-2013.

Landolfi, A. , Dietze, H. , Koeve, W. and Oschlies, A. (2013) Overlooked runaway feedback in the marine nitrogen cycle: the vicious cycle.

Biogeosciences (BG), 10 . pp. 1351-1363. DOI 10.5194/bg-10-1351-2013.

Melzner, F., Thomsen, J., Koeve, W. , Oschlies, A. , Gutowska, M., Bange, H. W. , Hansen, H. P. and Körtzinger, A. (2013) Future ocean acidification will be amplified by hypoxia in coastal habitats. Marine Biology, 160 . pp. 1875-1888. DOI 10.1007/s00227-012-1954-1.

Duteil, O. , Koeve, W. , Oschlies, A. , Aumont, O., Bianchi, D., Bopp, L., Galbraith, E., Matear, R., Moore, J. K., Sarmiento, J. L. and Segschneider, J. (2012) Preformed and regenerated phosphate in ocean general circulation models: can right total concentrations be wrong?.

Biogeosciences (BG), 9 . pp. 1797-1807. DOI 10.5194/bg-9-1797-2012.

Koeve, W. and Oschlies, A. (2012) Potential impact of DOM accumulation of fCO2 and carbonate ion computations in ocean acidification experiments.

Biogeosciences (BG), 9 . pp. 3787-3798. DOI 10.5194/bg-9-3787-2012.

Kähler, P., Oschlies, A. , Dietze, H. and Koeve, W. (2010) Oxygen, carbon, and nutrients in the oligotrophic eastern subtropical North Atlantic.

Biogeosciences (BG), 7 (3). pp. 1143-1156. DOI 10.5194/bg-7-1143-2010.

Koeve, W. and Kähler, P. (2010) Heterotrophic denitrification vs autotrophic anammox - quantifying collateral effects on the oceanic carbon cycle.

Biogeosciences (BG), 7 . pp. 2327-2337. DOI 10.5194/bg-7-2327-2010.

Koeve, W. and Kähler, P. (2010) Ocean science: Balancing ocean nitrogen. Nature Geoscience, 3 (6). pp. 383-384. DOI 10.1038/ngeo884.

Oschlies, A. , Koeve, W. , Rickels, W. and Rehdanz, K. (2010) Side effects and accounting aspects of hypothetical large-scale Southern Ocean iron fertilization.

Biogeosciences (BG), 7 (12). pp. 4017-4035. DOI 10.5194/bg-7-4017-2010.

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Koeve, W. (2006) C:N stoichiometry of the biological pump in the North Atlantic: constraints from climatological data.

Global Biogeochemical Cycles, 20 . GB3018. DOI 10.1029/2004GB002407.

Koeve, W. (2005) Magnitude of excess carbon sequestration into the deep ocean and the possible role of TEP.

Marine Ecology Progress Series, 291 . pp. 53-64. DOI 10.3354/meps291053.

Koeve, W. (2004) Spring bloom carbon to nitrogen ratio of net community production in the temperate N. Atlantic. Deep Sea Research Part I: Oceanographic Research Papers, 51 (11). pp. 1579-1600. DOI 10.1016/j.dsr.2004.07.002.

Koeve, W. (2002) Upper ocean carbon fluxes in the Atlantic Ocean: The importance of the POC:PIC ratio.

Global Biogeochemical Cycles, 16 (4). 4-1-4-17. DOI 10.1029/2001GB001836.

Koeve, W. , Pollehne, F., Oschlies, A. and Zeitzschel, B. (2002) Storm-induced convective export of suspended matter during spring in the northeast Atlantic Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 49 (8). pp. 1431-1444. DOI 10.1016/S0967-0637(02)00022-5.

Antia, A., Koeve, W. , Fischer, G., Blanz, T., Schulz-Bull, D., Scholten, J., Peinert, R., Neuer, S., Kremling, K., Kuss, J., Hebbeln, D., Bathmann, U., Fehner, U. and Zeitzschel, B. (2001) Basin-wide particulate carbon flux in the Atlantic Ocean: regional export patterns and potential for atmospheric CO2 sequestration.

Global Biogeochemical Cycles, 15 (4). pp. 845-862. DOI 10.1029/2000GB001376.

Kähler, P. and Koeve, W. (2001) Marine dissolved organic matter: can its C:N ratio explain carbon overconsumption?. Deep Sea Research Part I: Oceanographic Research Papers, 48 (1). pp. 49-62. DOI 10.1016/S0967-0637(00)00034-0.

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Koeve, W. (2001) Wintertime nutrients in the North Atlantic - New approaches and implications for estimates of seasonal new production. Marine Chemistry, 74 (4). pp. 245-260. DOI 10.1016/S0304-4203(01)00016-0.

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Koeve, W. and Ducklow, H. (2001) JGOFS synthesis and modelling: the North Atlantic ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 48 (10). pp. 2141-2154. DOI 10.1016/S0967-0645(00)00186-7.

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Körtzinger, A. , Koeve, W. , Kähler, P. and Mintrop, L. (2001) C:N ratios in the mixed layer during the productive season in the Northeast Atlantic Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 48 . pp. 661-688. DOI 10.1016/S0967-0637(00)00051-0.

Prieto, L., Sommer, F., Stibor, H. and Koeve, W. (2001) Effects of Planktonic Copepods on Transparent Exopolymeric Particles (TEP) Abundance and Size Spectra. Journal of Plankton Research, 23 . pp. 515-525. DOI 10.1093/plankt/23.5.515.

Scholten, J., Fietzke, J. , Vogler, S., Rutgers van der Loeff, M., Mangini, A., Koeve, W. , Waniek, J., Stoffers, P., Antia, A. and Kuss, J. (2001) Trapping efficiencies of sediment traps from the deep Eastern North Atlantic: the 230Th calibration. Deep Sea Research Part II: Topical Studies in Oceanography, 48 . pp. 2383-2408. DOI 10.1016/S0967-0645(00)00176-4.

Oschlies, A. , Koeve, W. and Garcon, V. (2000) An eddy-permitting coupled physical-biological model of the North Atlantic. Part II: Ecosystem dynamics and comparison with satellite and JGOFS local studies data.

Global Biogeochemical Cycles, 14 (1). pp. 499-523. DOI 10.1029/1999GB900080.

Waniek, J., Koeve, W. and Prien, R. D. (2000) Trajectories of sinking particles and the catchment areas above sediment traps in the northeast Atlantic.

Journal of Marine Research, 58 (6). pp. 983-1006. DOI 10.1357/002224000763485773.

Gaul, W., Antia, A. and Koeve, W. (1999) Microzooplankton grazing and nitrogen supply of phytoplankton growth in the temperate and subtropical North East Atlantic.

Marine Ecology Progress Series, 189 . pp. 93-104.

Dehairs, F., Kopczynska, E., Nielsen, P., Lancelot, C., Bakker, D. C. E., Koeve, W. and Goeyens, L. (1997) δ13C of Southern Ocean suspended organic matter during spring and early summer: regional and temporal variability. Deep Sea Research Part II: Topical Studies in Oceanography, 44 (1-2). pp. 129-142. DOI 10.1016/S0967-0645(96)00073-2.

von Bodungen, B., Antia, A., Bauerfeind, E., Haupt, O., Koeve, W. , Machado, E., Peeken, I., Peinert, R., Reitmeyer, S., Thomsen, C., Voss, M., Wunsch, M., Zeller, U. and Zeitzschel, B. (1995) Pelagic processes and vertical flux of particles: an overview of a long-term comparative study in the Norwegian Sea and Greenland Sea.

Geologische Rundschau, 84 . pp. 11-27. DOI 10.1007/BF00192239.

Bauerfeind, E., Bodungen, B. V., Arndt, K. and Koeve, W. (1994) Particle flux, and composition of sedimenting matter, in the Greenland Sea. Journal of Marine Systems, 5 (6). pp. 411-423. DOI 10.1016/0924-7963(94)90005-1.

Koeve, W. , Eppley, R. W., Podewski, S. and Zeitzschel, B. (1993) An unexpected nitrate distribution in the tropical North Atlantic at 18°N, 30°W—implications for new production. Deep Sea Research Part II: Topical Studies in Oceanography, 40 (1-2). pp. 521-536. DOI 10.1016/0967-0645(93)90030-Q.

Podewski, S., Saure, G., Eppley, R. W., Koeve, W. , Peinert, R. and Zeitzschel, B. (1993) The nose: a characteristic inversion within the salinity maximum water in the tropical northeast Atlantic. Deep Sea Research Part II: Topical Studies in Oceanography, 40 (1-2). pp. 537-557. DOI 10.1016/0967-0645(93)90031-H.

Eppley, R. W. and Koeve, W. (1990) Nitrate use by plankton in the eastern subtropical North Atlantic, March-April 1989.

Limnology and Oceanography, 35 . pp. 1781-1788.

Articles in a Scientific Journal - without review

[thumbnail of egusphere-2024-2552-supplement.pdf]

Guo, H., Koeve, W. , Oschlies, A. , He, Y. C., Kemena, T. P. , Gerke, L. and Kriest, I. (Submitted) Dual-tracer constraints on the Inverse-Gaussian Transit-time distribution improve the estimation of watermass ages and their temporal trends in the tropical thermocline.

EGUsphere . DOI 10.5194/egusphere-2024-2552.

Book chapters

Ehrhard, M. G. and Koeve, W. (1999) Determination of particulate organic carbon and nitrogen. In: Methods of seawater analysis. , ed. by Grasshoff, K., Kremling, K. and Ehrhardt, M. G.. Wiley-VCH, Weinheim, Germany, pp. 437-444. 3. ed. ISBN 3-527-29589-5

Presentations

Kriest, I. , Kähler, P., Khatiwala, S., Koeve, W. , Kvale, K. F. , Sauerland, V. and Oschlies, A. (2020) One size fits all? - Optimising ocean biogeochemistry for different circulations. [Talk] In: Ocean Sciences Meeting 2020. , 16.-21.02.2020, San Diego, USA .

Koeve, W. , Kähler, P., Oschlies, A. and Körtzinger, A. (2016) Oxygen utilization rate (OUR) underestimates ocean respiration – a model study. [Talk] In: Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .

Landolfi, A. , Koeve, W. and Oschlies, A. (2016) Why fix N2 in high N-supply regions?. [Talk] In: Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .

Oschlies, A. , Koeve, W. , Landolfi, A. , Getzlaff, J., Somes, C. J. and Kriest, I. (2016) Patterns of deoxygenation – natural and anthropogenic drivers. [Talk] In: Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .

Somes, C. J. , Landolfi, A. , Koeve, W. and Oschlies, A. (2016) Ocean biogeochemical feedbacks limit the impact of atmospheric nitrogen depositions on marine productivity. [Talk] In: Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .

Keller, D. , Kriest, I. , Koeve, W. and Oschlies, A. (2015) Southern Ocean Biological Impacts on Global Ocean Oxygen. [Invited talk] In: Alfred Wegener Institute Helmholz Centre for Polar and Marine Research Invited seminar. , 07.04.2015, Bremerhaven, Germany .

Kähler, P. and Koeve, W. (2015) Feedbacks in the cycles of N and P in anoxic waters - negative or positive?. [Talk] In: ASLO Aquatic Sciences Meeting 2015. , 22.-27.02.2015, Granada, Spain .

Koeve, W. and Kähler, P. (2015) A Puzzle of Oceanic Oxygen Utilization. [Talk] In: ASLO Aquatic Sciences Meeting 2015. , 22.-27.02.2015, Granada, Spain .

Oschlies, A. , Landolfi, A. , Kriest, I. , Somes, C. J. , Dietze, H. and Koeve, W. (2015) A modeler's perspective on environmental controls of N2 fixation. [Talk] In: ASLO Aquatic Sciences Meeting 2015. , 22.-27.02.2015, Granada, Spain .

Oschlies, A. , Landolfi, A. , Rabouille, S., Koeve, W. , Pahlow, M. and Somes, C. J. (2015) Phosphorus Controls on Marine N2 Fixation. [Talk] In: Goldschmidt Conference 2015. , 16.-21.08.2015, Prague, Czech Republic. .

Duteil, O. , Koeve, W. and Oschlies, A. (2014) A novel estimate of ocean oxygen utilisation points to a duced rate of respiration in the dark ocean. [Talk] In: IMBER Open Science Conference Future Oceans - Research for marine sustainability. , 23.-27.06.2014, Bergen, Norway .

Koeve, W. and Kähler, P. (2014) The puzzle of oceanic oxygen utilization. [Talk] In: EGU General Assembly 2014. , 27.04.-02.05.2014, Vienna, Austria .

Koeve, W. (2014) Detecting the imprint of biogeochemical processes for skill assessment of global ocean biogeochemical models. [Talk] In: BIOACID Annual Meeting 2014. , 10-11.09.2014, Kiel, Germany .

Koeve, W. and Kähler, P. (2014) A puzzle of oceanic oxygen consumption. [Talk] In: SFB 754 Kolloquium. , 03.12.2014, Kiel, Germany .

Koeve, W. , Kähler, P. and Oschlies, A. (2014) The puzzle of oceanic oxygen utilization. [Talk] In: 46. International Liege Colloquium. , 05.-09.05.2014, Liege, Belgium .

Landolfi, A. , Koeve, W. , Dietze, H. and Oschlies, A. (2014) Expanding the ecological niche of marine N2-fixers. [Talk] In: IMBER Open Science Conference Future Oceans - Research for marine sustainability. , 23.-27.06.2014, Bergen, Norway .

Landolfi, A. , Zamora, L., Koeve, W. and Oschlies, A. (2014) Sensitivity of marine N2O to atmospheric N deposition. [Talk] In: Earth Observation for Ocean-Atmosphere Interactions Science 2014, ESA-ESRIN. , 28.-31.10.2014, Frascati, Italy .

Oschlies, A. and Koeve, W. (2014) Unexpected increase in the simulated marine oxygen inventory in a warmer future ocean. [Talk] In: IMBER Open Science Conference Future Oceans - Research for marine sustainability. , 23.-27.06.2014, Bergen, Norway .

Oschlies, A. , Koeve, W. and Schmidtko, S. (2014) Global patterns of deoxygenation deduced from observations and CMIP5 models. [Talk] In: 46. International Liege Colloquium. , 05.-09.05.2014, Liege, Belgium .

Schmidtko, S. , Oschlies, A. , Koeve, W. and Stramma, L. (2014) Oxygen observations and climate models: a global perspective. [Talk] In: 2. International Ocean Research Conference. , 17.-21.11.2014, Barcelona, Spain .

Duteil, O. , Koeve, W. and Oschlies, A. (2013) Oxygen utlization in the ocean : improvement of a classical concept and measure of the biological pump. [Talk] In: ASLO Aquatic Science Meeting. , 17.-22.02.2013, New Orleans, USA .

Koeve, W. (2013) The need for data based evaluation of biogeochemical models in ocean acidification research. [Talk] In: BIOACID Workshop Consortium 5 "Ocean Services". , 05.04.2013, Kiel .

Koeve, W. , Wagner, H. and Oschlies, A. (2013) 14C-based evaluation of ocean circulation models - why we need to care about correct preformed ages. [Talk] In: Aktuelle Themen der Paläoklimaforschung. , 25.01.2013, Kiel .

Landolfi, A. , Dietze, H. , Koeve, W. and Oschlies, A. (2013) Iron limitation and DOM prevent oceanic N loss. [Talk] In: ASLO Aquatic Science Meeting. , 17.-22.02.2013, New Orleans, USA .

Wagner, H., Koeve, W. , Kriest, I. , Khatiwala, S. and Oschlies, A. (2013) Deep-Ocean evaluation of forced models with natural C-14. [Talk] In: CarboChange Annual Project Meeting 2013. , 24.-26.04.2013, Norwich, UK .

Koeve, W. and Oschlies, A. (2012) BIOACID I, Theme 5 Overview, Integrated assessment, sensitivity and uncertainties. [Talk] In: BIOACID II Kickoff-Meeting. , 06.-07.11.2012, Kiel, Germany .

Koeve, W. , Duteil, O. , Wagner, H. and Oschlies, A. (2012) Evaluating global biogeochemical models for ocean acidification and climate change research. [Talk] In: BIOACID II Kickoff-Meeting. , 06.-07.11.2012, Kiel, Germany .

Landolfi, A. , Dietze, H. , Koeve, W. and Oschlies, A. (2012) Losing marine nitrogen: the vicious cycle. [Talk] In: AGU Fall Meeting 2012. , 03.-07.12.2012, San Francisco, USA .

Koeve, W. and Dietze, H. (2011) Evaluating coupled ecosystem ocean circulation models: can we trust the concept of preformed nutrients? . [Talk] In: EGU General Assembly 2011. , 03.-08.04.2011, Vienna, Austria .

Koeve, W. , Oschlies, A. , Kriest, I. , Duteil, O. and Dietze, H. (2011) Evaluating and optimising paramerisations of pelagic calcium carbonate production in global biogeochemical ocean models. [Talk] In: BIOACID Annual Meeting 2011. , 26.-30.09.2011, Bremen, Germany .

Koeve, W. , Kim, H. C., Lee, K. and Oschlies, A. (2011) Computation of fCO2 and the concentration of carbonate ions and the potential role of DOM accumulation in ocean acidification experiments . [Talk] In: ASLO Aquatic Sciences Meeting. , 13.-18.02.2011, San Juan, Puerto Rico, USA .

Duteil, O. , Oschlies, A. and Koeve, W. (2010) Actual oxygen and suboxia representation : comparison of different OGCMs. [Talk] In: AGU Fall Meeting. , 13.-17.12.2010, San Francisco, CA, USA .

Koeve, W. (2010) Computation of fCO2 and the concentration of carbonate ions and the potential role of DOM accumulation in ocean acidification experiments. [Talk] In: FB2 Seminar, Leibniz-Institute of Marine Sciences (IFM-GEOMAR). , 01.11.2010, Kiel, Germany .

Koeve, W. , Kim, H. C., Lee, K. and Oschlies, A. (2010) Computation of fCO₂ and the concentration of carbonate ions and the potential role of DOM accumulation in ocean acidification experiments. [Talk] In: Joint EPOCA, BIOACID and UKOARP Meeting. , 28.09.2010, Bremerhaven . Abstracts : Joint EPOCA, BIOACID an UKOARP Meeting ; Atlantic Hotel, Bremerhaven, Germany, September 27th - 30th, 2010. ; p. 30 .

Oschlies, A. , Koeve, W. , Kriest, I. , Duteil, O. and Khativala, S. (2010) Assessing global biogeochemical models used in OA research. [Talk] In: Joint EPOCA, BIOACID and UKOARP Meeting. , 27.09.-30.09.2010, Bremerhaven . Abstracts : Joint EPOCA, BIOACID an UKOARP Meeting ; Atlantic Hotel, Bremerhaven, Germany, September 27th - 30th, 2010. ; p. 39 .

Koeve, W. and Körtzinger, A. (2008) Sharing marine facilities (EUR-OCEANS WP 1.1). [Talk] In: EUR-OCEANS Final Conference. , 25.-27.11.2008, Rome, Italy .

Koeve, W. (2003) Large scale biogeochemical diagnostics: the North Atlantic carbon machinery. [Invited talk] In: IFM Colloquium 2003. , 21.11.2003, Kiel, Germany .

Koeve, W. (2003) Large scale biogeochemical diagnostics: the North Atlantic carbon machinery. [Talk] In: LEGOS-Colloquium. , 16.12.2003, Toulouse, France .

Koeve, W. (2003) The carbon to nitrogen ratio of net community production in the North Atlantic Ocean - a synthesis. [Talk] In: JGOFS Synthesis and Modelling Project Meeting. , 12.06.2003, Kiel, Germany .

Conference posters

Bach, L. T. , Boxhammer, T. , Fischer, T. , Koeve, W. , Le Moigne, F. A. C. , Stange, P., Taucher, J. and Riebesell, U. (2016) Enclosing the biological carbon pump. [Poster] In: EuroMarine Foresight Symposium "The Biological Carbon Pump in a Changing World". , 17.-19.10.2016, Bremen, Germany .

Koeve, W. (2015) ALK-DIC: a suitable proxy of seawater carbonate ion concentration in the framework of global model evaluation?. [Poster] In: BIOACID Kickoff Meeting. , 06.10.2015, Kiel, Germany .

Koeve, W. (2015) Is ALK-DIC a suitable proxy of seawater carbonate ion concentration in the framework of global climate model evaluation?. [Poster] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria . Geophysical Research Abstracts, 17 (EGU2015-6556).

Landolfi, A. , Koeve, W. , Dietze, H. , Kähler, P. and Oschlies, A. (2015) Expanding the niche of marine N2 fixers. [Poster] In: ASLO Aquatic Sciences Meeting 2015. , 22.-27.02.2015, Granada, Spain .

Landolfi, A. , Somes, C. J. , Zamora, L., Koeve, W. and Oschlies, A. (2015) Marine N inventory sensitivity to atmospheric N deposition. [Poster] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria . Geophysical Research Abstracts, 17 (EGU2015-12648).

Oschlies, A. , Kriest, I. , Koeve, W. , Duteil, O. and Schartau, M. (2015) Evaluating oxygen and oxygen minimum zones in global biogeochemical models. [Poster] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria . Geophysical Research Abstracts, 17 (EGU2015-15645).

Wagner, H., Koeve, W. , Kriest, I. and Oschlies, A. (2015) Sensitivity of simulated deep ocean natural radiocarbon to gas exchange velocity and historical atmospheric ∆14C variations . [Poster] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria . Geophysical Research Abstracts, 17 (EGU2015-11423).

Feng, Y., Keller, D. , Koeve, W. and Oschlies, A. (2014) Ocean alkalinization - an application for coral reef conservation. [Poster] In: Ocean Sciences Meeting 2014. , 23.-28.02.2014, Honululu, Hawaii, USA .

Koeve, W. (2014) CaCO3 dissolution imprint in CMIP5 models. [Poster] In: EGU General Assembly 2014. , 27.04.-02.05.2014, Vienna, Austria .

Koeve, W. (2014) Quantifying the CaCO3 dissolution imprint in CMIP5 models. [Poster] In: BIOACID Annual Meeting 2014. , 10-11.09.2014, Kiel, Germany .

Landolfi, A. , Koeve, W. , Dietze, H. and Oschlies, A. (2014) A short circuit for oceanic N loss. [Poster] In: SOPRAN Annual Meeting 2014. , 25.-26.03.2014, Bremen, Germany .

Landolfi, A. , Kriest, I. , Koeve, W. and Oschlies, A. (2014) N inventory sensitivity to organic matter remineralization. [Poster] In: EGU General Assembly 2014. , 27.04.-02.05.2014, Vienna, Austria .

Koeve, W. , Duteil, O. , Wagner, H. and Oschlies, A. (2013) Data-based evaluation of global carbon cycle models used for ocean acidification research. [Poster] In: Annual Meeting EU FP7 large-scale integrating project CARBOCHANGE. , 24.-26.04.2013, Norwich, United Kingdom .

Koeve, W. and Oschlies, A. (2013) Detecting CaCO3 dissolution in the interior of the ocean. [Poster] In: ASLO Aquatic Science Meeting. , 17.-22.02.2013, New Orleans, USA .

Koeve, W. , Wagner, H. and Oschlies, A. (2013) Skill assessment of global biogeochemical models used in Ocean Acidification research - the importance of correctly evaluating age distribution in ocean models (BIOACID project 5.1). [Poster] In: BIOACID Annual Meeting 2013. , 01.-02.10.2013, Rostock-Warnemünde, Germany .

Koeve, W. , Wagner, H. and Oschlies, A. (2013) 14C-based evaluation of ocean circulation models: why we need to care about correct preformed ages. [Poster] In: EGU General Assembly 2013. , 07.-12.04.2013, Vienna, Austria .

Barkmann, W., Koeve, W. and Oschlies, A. (2012) Response of ocean carbon tracer distributions to prognostic particle sinking. [Poster] In: BIOACID II Kickoff-Meeting. , 06.-07.11.2012, Kiel, Germany .

Duteil, O. , Koeve, W. and Oschlies, A. (2012) Preformed and total phosphate in OGCMS: can right total concentrations be wrong? Implications on suboxia extension. [Poster] In: Ocean Sciences Meeting 2012. , 20.-24.02.2012, Salt Lake City, USA .

Koeve, W. , Barkmann, W., Duteil, O. and Oschlies, A. (2012) Data-Based Evaluation Of Global Carbon Cycle Models Used For Ocean Acidification Research. [Poster] In: "The ocean in a high CO2 World" 3. Symposium. , 24.-27.09.2012, Monterey, USA .

Koeve, W. , Duteil, O. , Dietze, H. , Kriest, I. and Oschlies, A. (2012) Applying the TA* method for the evaluation of the CaCO3-cycle in ocean models. [Poster] In: Ocean Sciences Meeting 2012. , 20.-24.02.2012, Salt Lake City, USA .

Landolfi, A. , Koeve, W. , Dietze, H. and Oschlies, A. (2012) The TP* Conveyor. [Poster] In: Ocean Sciences Meeting 2012 . , 20.-24.02.2012, Salt Lake City, USA .

Wagner, H., Koeve, W. , Kriest, I. and Oschlies, A. (2012) Sensitivity of modeled oceanic radiocarbon to gas exchange formulation. [Poster] In: CARBOCHANGE Annual Meeting 2012. , 07.-09.03.2012, Galway, Ireland .

Duteil, O. , Oschlies, A. and Koeve, W. (2011) Actual oxygen and suboxia representations: comparison of different ocean general circulation models. [Poster] In: EUR-OCEANS Conference - Ocean deoxygenation and implications for marine biogeochemical cycles and ecosystems. , 24.-26.10.2011, Toulouse, France .

Koeve, W. , Dietze, H. , Duteil, O. and Oschlies, A. (2011) Evaluating coupled ecosystem ocean circulation models: can we trust the concept of preformed nutrients?. [Poster] In: EUR-OCEANS Conference - Ocean deoxygenation and implications for marine biogeochemical cycles and ecosystems. , 24.-26.10.2011, Toulouse, France .

Koeve, W. , Kim, H. C., Lee, K. and Oschlies, A. (2011) The potential impact of DOM accumulation on computed fCO2, carbonate ion concentrations, and omega in ocean acidification experiments . [Poster] In: EGU General Assembly 2011. , 03.-08.04.2011, Vienna, Austria .

Landolfi, A. , Dietze, H. , Koeve, W. and Oschlies, A. (2011) Implications of dexygenation on the marine N inventory. [Poster] In: EUR-OCEANS Conference - Ocean deoxygenation and implications for marine biogeochemical cycles and ecosystems. , 24.-26.10.2011, Toulouse, France .

Koeve, W. and Kähler, P. (2010) Heterotrophic Denitrification or Anammox - Quantifying Collateral Effects on the Oceanic Carbon Cycle. [Poster] In: Ocean Sciences Meeting 2010 "Oxygen Minimum Zones and Climate Change: Observations and Prediction IV". , 22.02.-26.02.2010, Portland, Oregon, USA .

Theses - not published by a publisher

Koeve, W. (1992) New production of phytoplankton in the tropical and subarctic North Atlantic. (PhD/ Doctoral thesis), Christian-Albrechts-Universität Kiel, Kiel, Germany, 90 pp.

Koeve, W. (1986) Austauschprozesse zwischen Porenwasser und bodennahem Wasser. (Diploma thesis), Christian-Albrechts-Universität Kiel, Kiel, Germany, 84 + A 14 pp.

Reports - Cruise Reports

[thumbnail of Cruise Report POS173-2.pdf]

Antia, A., Bauerfeind, E., von Bodungen, B., Hassan, M., Humborg, C., König, H., Koeve, W. , Langmaack, H., Machado, E., Peeken, I., Petersen, H., Podewski, S., Przygodda, K., Scholten, J., Voß, M. and Wunsch, M. (1990) Pelagisches System und vertikaler Partikelfluss im Herbst in der Grönländischen See, Jan Mayen Strom : POSEIDON-Reise 173,2 [POS173/2] vom 14. August bis zum 10. September 1990 ; Teilprojekt A1 und A4 des Sonderforschungsbereiches 313 der Universität Kiel = The pelagic system and vertikal particle flux during autumn in the Greenland Sea, Jan Mayen Current.

. Berichte aus dem Sonderforschungsbereich 313, Sedimentation im Europäischen Nordmeer, 26 . Institut für Meereskunde der Universität Kiel, Kiel, Germany, 54 pp.

Reports - other reports

Rickels, W., Koeve, W. , Meier, F., Paschen, M., Rischer, C. and Saldivia, I. (2023) Report on appropriateness of accounting schemes to assign carbon credits to ocean NETs.

. OceanNets Deliverable, D1.2 . OceanNETs, Kiel, Germany, 42 pp. DOI 10.3289/oceannets_d1.2.

[thumbnail of BIOACID_broschuere_D_web.pdf]

Bach, L. T. , Böhm, F., Büscher, J., Clemmesen, C. , Ekardt, F., Gössling-Reisemann, S., Jakob, L., Königstein, S., Koeve, W. , Lischka, S. , Mark, F., Matthiessen, B., Mintenbeck, K., Ott, K., Pörtner, H. O., Riebesell, U. , Stiasny, M. , Storch, D., Voss, M., Wahl, M. and Werner, F. J. (2017) Dem Ozeanwandel auf der Spur: BIOACID - Biologische Auswirkungen von Ozeanversauerung.

, ed. by Nicolai, M.. GEOMAR, Kiel, Germany, 23 pp.

[thumbnail of BIOACID_brochure_e_web.pdf]

Bach, L. T. , Böhm, F., Büscher, J., Clemmesen, C. , Ekardt, F., Gössling-Reisemann, S., Jakob, L., Königstein, S., Koeve, W. , Lischka, S. , Mark, F., Matthiessen, B., Mintenbeck, K., Ott, K., Pörtner, H. O., Riebesell, U. , Stiasny, M. , Storch, D., Voss, M., Wahl, M. and Werner, F. J. (2017) Exploring Ocean Change: BIOACID - Biological Impacts of Ocean Acidification.

, ed. by Nicolai, M.. GEOMAR, Kiel, Germany, 23 pp.

[thumbnail of JGOFS_Abschlussbericht.pdf]

Lochte, K., Koeve, W. , Meggers, H., Mintrop, L. and Oschlies, A. (2004) BMBF-Verbundprojekt JGOFS Nordatlantik Synthese II : Abschlußbericht ; 01.07.2001 - 30.06.2003.

. BMBF / IFM-GEOMAR, Kiel, Germany, 52 pp. DOI 10.2314/GBV:501716823.

This list was generated on Sat Dec 21 16:04:27 2024 CET.

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