My research foci are description of biogeochemical processes in large-scale models, assessment of model skill, and calibration of biogeochemical model parameters (constants) on a global scale. This involves analysis and synthesis of observations, as well as development and tests of different metrics for global model optimization. For my work I mainly use the "Transport Matrix Method" developed by Samar Khatiwala.
OceanICU "Understanding Ocean Carbon" - work package 6 (lead) "Determine significance of key processes in the evolving Ocean C Cycle" (EU Horizon; funding period 2022-2027)
CUSCO "Coastal Upwelling System in a Changing Ocean" - work package 5 (co-lead) "Particle size distribution, particle export and zooplankton-particle interactions" (Bundesministerium für Bildung und Forschung, funding period: 2019-2021)
PALMOD (German Climate Modeling Initiative) "From the Last Interglacial to the Anthropocene - Modeling a Complete Biogeochemical Cycle" - work package 4.1 (lead) "A model calibration framework exemplified for the ocean biogeochemical component" (Bundesministerium für Bildung und Forschung, funding period: 2015-2019)
SFB 754 “Climate-Biogeochemistry Interactions in the Tropical Ocean” - subproject B8 "The role of zooplankton in N-, P- and C-cycling and for the oxygen budget of tropical oxygen minimum zones” (co-lead; German Science Foundation DFG, funding period: 2016 – 2019)
Number of items: 104.
Articles in a Scientific Journal - peer-reviewed
Kriest, I. ,
Getzlaff, J.,
Landolfi, A. ,
Sauerland, V.,
Schartau, M. and
Oschlies, A.
(2023)
Exploring the role of different data types and timescales for the quality of marine biogeochemical model calibration.
Biogeosciences (BG), 20
(13).
pp. 2645-2669.
DOI
10.5194/bg-20-2645-2023.
Hill-Cruz, M. ,
Frenger, I. ,
Getzlaff, J.,
Kriest, I. ,
Xue, T. and
Shin, Y. J.
(2022)
Understanding the drivers of fish variability in an end-to-end model of the Northern Humboldt Current System.
Ecological Modelling, 472
.
Art.Nr. 110097.
DOI
10.1016/j.ecolmodel.2022.110097.
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.
Hill-Cruz, M. ,
Kriest, I. ,
Jose, Y. S. ,
Kiko, R. ,
Hauss, H. and
Oschlies, A.
(2021)
Zooplankton mortality effects on the plankton community of the Northern Humboldt Current System: Sensitivity of a regional biogeochemical model.
Biogeosciences (BG), 18
(9).
pp. 2891-2916.
DOI
10.5194/bg-18-2891-2021.
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.
Kiko, R. ,
Brandt, P. ,
Christiansen, S.,
Faustmann, J.,
Kriest, I. ,
Rodrigues, E.,
Schütte, F. and
Hauss, H.
(2020)
Zooplankton-Mediated Fluxes in the Eastern Tropical North Atlantic.
Frontiers in Marine Science, 7
.
Art.Nr. 358.
DOI
10.3389/fmars.2020.00358.
Martin, A.,
Boyd, P.,
Buesseler, K.,
Cetinic, I.,
Claustre, H.,
Giering, S.,
Henson, S.,
Irigoien, X.,
Kriest, I. ,
Memery, L.,
Robinson, C.,
Saba, G.,
Sanders, R.,
Siegel, D.,
Villa-Alfageme, M. and
Guidi, L.
(2020)
Study the twilight zone before it is too late.
Nature, 580
(7801).
pp. 26-28.
DOI
10.1038/d41586-020-00915-7.
Kiko, R. ,
Biastoch, A. ,
Brandt, P. ,
Cravatte, S.,
Hauss, H. ,
Hummels, R.,
Kriest, I. ,
Marin, F.,
McDonnell, A. M. P.,
Oschlies, A. ,
Picheral, M.,
Schwarzkopf, F. U. ,
Thurnherr, A. M. and
Stemmann, L.
(2017)
Biological and physical influences on marine snowfall at the equator.
Nature Geoscience, 10
(11).
pp. 852-858.
DOI
10.1038/ngeo3042.
Schartau, M. ,
Wallhead, P.,
Hemmings, J.,
Löptien, U. ,
Kriest, I. ,
Krishna, S.,
Ward, B. A.,
Slawig, T. and
Oschlies, A.
(2017)
Reviews and syntheses: Parameter identification in marine planktonic ecosystem modelling.
Biogeosciences (BG), 14
(6).
pp. 1647-1701.
DOI
10.5194/bg-14-1647-2017.
Schwinger, J.,
Goris, N.,
Tjiputra, J. F.,
Kriest, I. ,
Bentsen, M.,
Bethke, I.,
Ilicak, M.,
Assmann, K. M. and
Heinze, C.
(2016)
Evaluation of NorESM-OC (versions 1 and 1.2), the ocean carbon-cycle stand-alone configuration of the Norwegian Earth System Model (NorESM1).
Geoscientific Model Development, 9
.
pp. 2589-2622.
DOI
10.5194/gmd-9-2589-2016.
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.
Articles in a Scientific Journal - without review
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
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 .
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 .
Bernadello, R.,
Martin, A.,
Khatiwala, S.,
Kriest, I. ,
Henson, S.,
Dunne, J.,
Totterdell, I.,
Allen, I. and
Yool, A.
(2015)
Evaluating our understanding of the biological carbon pump using the transport matrix method and global nutrient distributions, 2015. Evaluating our understanding of the biological carbon pump using the transport matrix method and global nutrient distributions.
[Talk]
In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria .
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 .
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. ,
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 .
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 .
Shigemitsu, M.,
Yamanaka, Y.,
Watanabe, Y.,
Okoda, N.,
Kriest, I. and
Oschlies, A.
(2009)
Seasonal characteristics of the carbon isotope biogeochemistry of settling particles in the western subarctic Pacific: a model study.
[Talk]
In: 2. GEOTRACES data/model synergy workshop. , 07.12, Paris, France .
Garcon, V.,
Salihoglu, B.,
Kriest, I. and
Oschlies, A.
(2006)
Phytoplankton distribution and carbon production in the North Atlantic.
[Other]
In: 13. Ocean Sciences Meeting. , 23.02, Honolulu, Hawaii, USA .
Segschneider, J.,
Kriest, I. ,
Maier-Reimer, E.,
Gehlen, M. and
Schneider, B.
(2006)
Impact of vertical flux simulation on surface pCO2.
[Other]
In: 2. Annual CarboOcean Meeting. , 05.12, Maspalomas, Gran Canaria, Spain .
Conference posters
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).
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 .
von Bröckel, K.,
Sellmer, C. and
Kriest, I.
(2000)
Silicate limitation in a filament.
[Poster]
In: Biogeochemical Cycles: German contribution to International JGOFS. , 18.-21.09.2000, Bremen, Germany . Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen. ; pp. 32-33 .
Theses - published by a publisher
Theses - not published by a publisher
Reports - Cruise Reports
Brandt, P. ,
Begler, C.,
Coelho, P.,
Czeschel, R.,
Dennert, P.,
Fernandez Carrera, A.,
Filella, A.,
Gindorf, S.,
Gomez-Letona, M.,
Hans, A. C.,
Heukamp, F.,
Kiko, R. ,
Kisjeloff, B.,
Imbol Koungue, R. A.,
Kriest, I. ,
Martens, W.,
Prigent, A. ,
Ramcharitar, B.,
Sarmiento Lezcano, A. N.,
Schmidtko, S. ,
Schrandt, J. C.,
Sherman, J.,
Stelzner, M.,
Stöven, T. ,
Subramaniam, A. and
Tuchen, F. P.
(2019)
Trans-Atlantic Equatorial cruise I, Cruise No. M158, September 19 - October 26, 2019, Walvis Bay (Namibia) - Recife (Brazil).
.
METEOR-Berichte, M158
.
Gutachterpanel Forschungsschiffe, Bremen, Germany, 48 pp.
DOI
10.2312/cr_m158.
Reports - other reports
This list was generated on Wed Nov 20 19:15:39 2024 CET.