Dr. rer. nat. Iris Kriest


Wissenschaftliche Mitarbeiterin in der Forschungseinheit Biogeochemische Modellierung

Büro:
Raum 10
"Seeburg", Düsternbrooker Weg 2
Tel.: +49 431 600-4033
Fax: +49 431 600-4469
E-Mail: ikriest(at)geomar.de

Anschrift:
GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel
Düsternbrooker Weg 20
24105 Kiel

Forschungsinteressen

Meine Forschungsinteressen liegen in der Beschreibung biogeochemischer Prozesse in großskaligen Modellen, Bewertung der Modellgüte sowie Kalibrierung der biogeochemischen Modellparameter (Konstanten) auf globaler Ebene. Dies beeinhaltet auch die Analyse und Synthese von  Beobachtungen, sowie Entwicklung und Testen verschiedener Beurteilungsverfahren für die Modelloptimierung. Für meine Arbeit verwende ich überwiegend die "Transport Matrix Method", entwickelt von Samar Khatiwala.

Ausbildung und Werdegang

  • seit 2004  Wissenschaftlerin, IFM-GEOMAR, jetzt GEOMAR | Helmholtz Zentrum für Ozeanforschung Kiel
  • 2002–2004  PostDoc, Max-Planck-Institut für Meteorologie, Hamburg
  • 1999–2002  PostDoc, Institut für Meereskunde, Kiel
  • 1995–1999  Doktorandin, Institut für Meereskunde, Kiel (Teilnahme an Expedition M32/5 und So120, Arabisches Meer)
  • 1994 Stipendium (DAAD), Department of Fisheries and Oceans, St. John's, NF, Kanada 
  • 1994  Diplom in Biologie, Institut für Meereskunde, Kiel, Christian-Albrechts-Universität zu Kiel

Drittmittelprojekte

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” (German Science Foundation, DFG, Funding Period: 2016 – 2019)

PALMOD (German Climate Modeling Initiative) "From the Last Interglacial to the Anthropocene - Modeling a Complete Biogeochemical Cycle" - Workpackage 4.1 "A Model Calibration Framework Exemplified for the Ocean Biochemical Component" (Bundesministerium für Bildung und Forschung, Funding Period: 2015-2018)

Publikationen

Anzahl der Einträge: 76.

Artikel in einer Fachzeitschrift - begutachtet

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. und Stemmann, L. (2017) Biological and physical influences on marine snowfall at the equator. Nature Geoscience, 10 (11). pp. 852-858. DOI 10.1038/ngeo3042.

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Kvale, K. F., Khatiwala, S., Dietze, H., Kriest, I. und Oschlies, A. (2017) Evaluation of the Transport Matrix Method for simulation of ocean biogeochemical tracers. Open Access Geoscientific Model Development, 10 . pp. 2425-2445. DOI 10.5194/gmd-10-2425-2017.

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Schartau, M., Wallhead, P., Hemmings, J., Löptien, U., Kriest, I., Krishna, S., Ward, B. A., Slawig, T. und Oschlies, A. (2017) Reviews and syntheses: Parameter identification in marine planktonic ecosystem modelling. Open Access Biogeosciences (BG), 14 (6). pp. 1647-1701. DOI 10.5194/bg-14-1647-2017.

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Kriest, I., Sauerland, V., Khatiwala, S., Srivastav, A. und Oschlies, A. (2017) Calibrating a global three-dimensional biogeochemical ocean model (MOPS-1.0). Open Access Geoscientific Model Development, 10 . pp. 127-154. DOI 10.5194/gmd-10-127-2017.

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Schwinger, J., Goris, N., Tjiputra, J. F., Kriest, I., Bentsen, M., Bethke, I., Ilicak, M., Assmann, K. M. und 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). Open Access Geoscientific Model Development, 9 . pp. 2589-2622. DOI 10.5194/gmd-9-2589-2016.

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Keller, D. P., Kriest, I., Koeve, W. und Oschlies, A. (2016) Southern Ocean biological impacts on global ocean oxygen. Open Access Geophysical Research Letters, 43 (12). pp. 6469-6477. DOI 10.1002/2016GL069630.

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Kriest, I. und Oschlies, A. (2015) MOPS-1.0: modelling the regulation of the global oceanic nitrogen budget by marine biogeochemical processes. Open Access Geoscientific Model Development, 8 . pp. 2929-2957. DOI 10.5194/gmd-8-2929-2015.

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Dutay, J. C., Tagliabue, A., Kriest, I. und van Hulten, M. M. P. (2015) Modelling the role of marine particle on large scale 231Pa, 230Th, Iron and Aluminium distributions. Progress in Oceanography, 133 . pp. 66-72. DOI 10.1016/j.pocean.2015.01.010.

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Duteil, O., Koeve, W., Oschlies, A., Bianchi, D., Galbraith, E., Kriest, I. und Matear, R. (2013) A novel estimate of ocean oxygen utilisation points to a reduced rate of respiration in the ocean interior. Open Access Biogeosciences (BG), 10 (11). pp. 7723-7738. DOI 10.5194/bg-10-7723-2013.

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Dietze, H. und Kriest, I. (2012) Cs-137 off Fukushima Dai-ichi, Japan - model based estimates of dilution and fate. Open Access Ocean Science, 8 (3). pp. 319-332. DOI 10.5194/os-8-319-2012.

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Kriest, I., Oschlies, A. und Khatiwala, S. (2012) Sensitivity analysis of simple global marine biogeochemical models. Global Biogeochemical Cycles, 26 . GB2029. DOI 10.1029/2011GB004072.

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Kriest, I., Khatiwala, S. und Oschlies, A. (2010) Towards an assessment of simple global marine biogeochemical models of different complexity. Progress in Oceanography, 86 (3-4). pp. 337-360. DOI 10.1016/j.pocean.2010.05.002.

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Heinze, C., Kriest, I. und Maier-Reimer, E. (2009) Age offsets among different biogenic and lithogenic components of sediment cores revealed by numerical modeling. Open Access Paleoceanography, 24 (4). PA4214. DOI 10.1029/2008PA001662.

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Paulmier, A., Kriest, I. und Oschlies, A. (2009) Stoichiometries of remineralisation and denitrification in global biogeochemical ocean models. Open Access Biogeosciences (BG), 6 . pp. 923-935.

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Kriest, I. und Oschlies, A. (2007) Modelling the effect of cell-size-dependent nutrient uptake and exudation on phytoplankton size spectra. Deep Sea Research Part I: Oceanographic Research Papers, 54 (9). pp. 1593-1618. DOI 10.1016/j.dsr.2007.04.017.


Kriest, I. und Evans, G. (2000) A vertically resolved model for phytoplankton aggregation. Proc. Indian Acad. Sci (Earth Planet. Sci.), 109 (4) . pp. 453-469.

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Kriest, I. und Evans, G. (1999) Representing phytoplankton aggregates in biogeochemical models. Deep-Sea Research Part I-Oceanographic Research Papers, 46 . pp. 1841-1859. DOI 10.1016/S0967-0637(99)00032-1.

Buchkapitel

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Oschlies, A. und Kriest, I. (2011) Wann, woher und wohin? - Untersuchungen zur Geschichte und Zukunft von CO2 im Ozean Investigating the role of ocean ventilation in anthropogenic CO2 uptake and sequestration via Green functions. In: Forschung im HLRN-Verbund 2011. . Konrad-Zuse-Zentrum für Informationstechnik, Berlin, Germany, pp. 86-87. ISBN 978-3-00-034131-1

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Oschlies, A. und Kriest, I. (2011) Wie gut sind unsere Beschreibungen biologischer Vorgänge im globalen Ozean? Einfluss von Remineralisierungsparametern auf globale biogeochemische Ozeanmodelle. In: Forschung im HLRN-Verbund 2011. . Konrad-Zuse-Zentrum für Informationstechnik, Berlin, Germany, pp. 88-89. ISBN 978-3-00-034131-1

Vorträge


Kriest, I. (2017) Global biogeochemical model optimization - how good can we get, and what does "good" mean?. [Eingeladener Vortrag] In: BCCR/GFI Seminar (Bjerksnes Centre). , 10.05.2017, Bergen, Norway .


Kriest, I. (2017) Some aspects of modeling mesopelagic particle flux on a global scale (and on long time scales). [Eingeladener Vortrag] In: Workshop on Biological Carbon Pump Programmes. , 18.-20.10.2017, IUEM, Plouzané (Brest), France .


Kriest, I., Dietze, H., Löptien, U. und Schartau, M. (2017) Calibration and parameter identification of global marine biogeochemistry models. [Vortrag] In: PalMod Annual Retreat. , 22.02.2017, Lübeck, Germany .


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


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


Bernadello, R., Martin, A., Khatiwala, S., Kriest, I., Henson, S., Dunne, J., Totterdell, I., Allen, I. und 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. [Vortrag] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria .


Kriest, I. (2015) Defining essential ocean variables (EOVs) for biogeochemistry. [Eingeladener Vortrag] In: ConnectinGEO Workshop "Towards a sustainability process for GEOSS Essential Variables". , 11.-12.06.2015, Bari, Italy .


Kriest, I. (2015) Dogs and cats: can models and measurements get along?. [Vortrag] In: IOCCP International Sensors Summer Course. , 22.06.-01.07.2015, Kristineberg, Sweden .


Kriest, I. und Oschlies, A. (2015) Regulation of global oceanic nitrogen and oxygen budget by marine biogeochemical processes. [Vortrag] In: ASLO Aquatic Sciences Meeting 2015. , 22.-27.02.2015, Granada, Spain .


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


Kriest, I. und Oschlies, A. (2014) Evaluation of global biogeochemical ocean models simulated on millenial time scales. [Vortrag] In: CarboChange Annual Project Meeting 2014. , 07.-10.04.2014, Reykjavik, Iceland .


Kriest, I. und Oschlies, A. (2014) Simulating deep ocean biogeochemistry on a global scale: some aspects and challenges. [Vortrag] In: IMBER Open Science Conference FUTURE OCEAN. , 23.-27.06.2014, Bergen, Norway .


Kriest, I. und Oschlies, A. (2014) Simulating remineralization processes in oxygen minimum zones: uncertainties and consequences for global biogeochemical cycles. [Vortrag] In: 46. International Liege Colloquium. , 05.-09.05.2014, Liege, Belgium .


Kriest, I. und Oschlies, A. (2014) The good, the bad and the ugly - Evaluating biogeochemical ocean models in a world of uncertainties. [Vortrag] In: Future Ocean: Cluster Retreat 2014. , 29.-30.09.2014, Schleswig, Germany .


Kriest, I. und Slawig, T. (2014) Mathematical analysis and parameter identification for marine ecosystem models. [Vortrag] In: DAAD Science Tour. , 02.12.2014, Kiel, Germany .


Kriest, I. und Oschlies, A. (2013) Particle sinking and burial: their representation in global biogeochemical models, and their impact on distributions of tracers and fluxes. [Vortrag] In: ASLO Aquatic Science Meeting. , 17.-22.02.2013, New Orleans, USA .


Kriest, I. und Oschlies, A. (2013) The effect of remineralization and burial in global biogeochemical models. [Vortrag] In: CarboChange Annual Project Meeting 2013. , 24.-26.04.2013, Norwich, UK .


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


Kriest, I. (2012) Confronting global marine biogeochemical models with observations. [Eingeladener Vortrag] In: Workshop on Joint Oceanic and Atmospheric Biogeochemical Data Assimilation. , 11.-13.07.2012, Göttingen, Germany .


Kriest, I. (2012) Potential impact of aggregation and size distribution for representation of tracer distributions and fluxes in global biogeochemical models. [Eingeladener Vortrag] In: 2. International Workshop on Marine Aggregates from Molecular Principles to Biogeochemical Impacts. , 15.-17.08.2012, Bremen, Germany .


Duteil, O., Kriest, I., Khatiwala, S. und Oschlies, A. (2011) Coupling of a complex biogeochemical model with the Transport Matrix Method : quantification of the impact of margin iron input on the ecosystem. [Vortrag] In: EGU General Assembly 2011. , 03.-08.04.2011, Vienna, Austria .


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


Kriest, I. (2011) Respective influences of circulation and biogeochemical parameters on simulated nutrient and oxygen fields. [Vortrag] In: Carbochange Kick-off Meeting. , 07.-10.03.2011, Bergen, Norway .


Kriest, I. (2011) Sensitivity of biogeochemical models to particle export and recycling. [Eingeladener Vortrag] In: 3. GEOTRACES Data-Model Synergy Workshop. , 14.-17.11.2011, Barcelona, Spain .

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Oschlies, A., Koeve, W., Kriest, I., Duteil, O. und Khativala, S. (2010) Assessing global biogeochemical models used in OA research. [Vortrag] 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 .


Kriest, I. (2009) Representation of biogeochemical processes in global ocean models and its effect on simulated nutrients and oxygen fields. [Vortrag] In: FB2 Seminar, Leibniz-Institute of Marine Sciences (IFM-GEOMAR). , 16.11.2009, Kiel, Germany .


Kriest, I. (2009) Size distributions of marine plankton: comparison of model results to observations. [Eingeladener Vortrag] In: Seminar "Komplexe Systeme und Modellierung". , 04.06, Oldenburg .


Kriest, I. und Oschlies, A. (2009) Sinking and remineralisation of particulate organic matter in largescale models of marine biogeochemistry. [Vortrag] In: ASLO Aquatic Sciences Meeting. , 28.01, Nice, France .


Kriest, I., Oschlies, A. und Khatiwala, S. (2009) Parameterisation of Export, Sinking and Remineralisation and its Effect on Simulated Tracers in Largescale Models of Marine Biogeochemistry. [Vortrag] In: AGU Chapman Conference on the Biological Carbon Pump of the Oceans. , 03.09, Brockenhurst, Hampshire, UK .


Kriest, I., Oschlies, A. und Khatiwala, S. (2009) Parameterisation of remineralisation length scales in large-scale models of marine biogeochemistry. [Vortrag] In: 2. GEOTRACES data/model synergy workshop. , 07.12, Paris, France .


Shigemitsu, M., Yamanaka, Y., Watanabe, Y., Okoda, N., Kriest, I. und Oschlies, A. (2009) Seasonal characteristics of the carbon isotope biogeochemistry of settling particles in the western subarctic Pacific: a model study. [Vortrag] In: 2. GEOTRACES data/model synergy workshop. , 07.12, Paris, France .


Kriest, I., Oschlies, A. und Khatiwala, S. (2008) Development and assessment of a model for global ecosystems. [Vortrag] In: Final MERSEA Plenary Meeting. , 29.04, Paris, France .


Kriest, I., Oschlies, A. und Khatiwala, S. (2008) Development and assessment of global marine biogeochemical models of varying complexity. [Vortrag] In: 4. Scientific Computing Seminar, Parameter Estimation, Optimization and Inverse Modeling in Geosciences. , 16.06, Kiel .


Kriest, I. (2007) Observations of particle size: how can we assess size based models?. [Vortrag] In: German Advances in Marine Ecosystem Modelling. , 13.11, Hamburg .


Kriest, I. (2007) POM sinking in large-scale models of marine biogeochemical cycles: its parameterisation, implicit assumptions and relation to surface ocean processes. [Vortrag] In: FB2 Seminar, Leibniz-Institute of Marine Sciences (IFM-GEOMAR). , 05.11.2007, Kiel, Germany .


Kriest, I. und Oschlies, A. (2007) Size dependent processes in biogeochemical models. [Vortrag] In: German Advances in Marine Ecosystem Modelling. , 01.03, Hamburg .


Kriest, I. und Oschlies, A. (2007) The interplay between particle size distribution and biogeo¬chemical processes. [Vortrag] In: MERSEA 4th annual meeting. , 24.04, Rome, Italy .


Garcon, V., Salihoglu, B., Kriest, I. und Oschlies, A. (2006) Phytoplankton distribution and carbon production in the North Atlantic. [Anderer] In: 13. Ocean Sciences Meeting. , 23.02, Honolulu, Hawaii, USA .


Kriest, I. und Oschlies, A. (2006) A model of cell size dependent phytoplankton physiology - first results and comparison with observations. [Anderer] In: MERSEA 3. Plenary Meeting. , 06.03, London, UK .


Segschneider, J., Kriest, I., Maier-Reimer, E., Gehlen, M. und Schneider, B. (2006) Impact of vertical flux simulation on surface pCO2. [Anderer] In: 2. Annual CarboOcean Meeting. , 05.12, Maspalomas, Gran Canaria, Spain .

Poster


Kriest, I. und Oschlies, A. (2015) Calibrating a global ocean model of N, P, O cycles against observed tracer distributions. [Poster] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria .


Oschlies, A., Kriest, I., Koeve, W., Duteil, O. und 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. und 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).


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


Oschlies, A., Kriest, I. und Duteil, O. (2014) A biogeochemical model assessment platform. [Poster] In: WGOMD Workshop on High Resolution Ocean Climate Modeling. , 07.-09.04.2014, Kiel, Germany .


Koeve, W., Duteil, O., Dietze, H., Kriest, I. und 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 .


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


Losa, S. N., Schröter, J., Kriest, I. und Oschlies, A. (2006) Estimating biological parameters of a size-dependent NPZD ecosystem model. [Poster] In: EGU General Assembly 2006. , 02.-07.04, Vienna, Austria .


Salihoglu, B., Garcon, V., Oschlies, A. und Kriest, I. (2006) Influence of nutrient utilization and remineralization stoichiometry on phytoplankton distribution and carbon export: a modeling study at BATS. [Poster] In: EGU General Assembly 2006. , 02.-07.04, Vienna, Austria .

Hochschulschriften - über Verlag veröffentlicht

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Kriest, I. (1999) The influence of phytoplankton aggregation on sedimentation - A model study. Open Access (Doktorarbeit/PhD), Christian-Albrechts-Universität Kiel, Kiel, Germany, 135 pp. . Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel, 306 . DOI 10.3289/ifm_ber_306.

Hochschulschriften - nicht über Verlag veröffentlicht

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Kriest, I. (1998) The influence of phytoplankton aggregation on sedimentation : a model study. (Doktorarbeit/PhD), Christian-Albrechts-Universität Kiel, Kiel, Germany, 136 pp.

Weitere Berichte

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Maier-Reimer, E., Kriest, I., Segschneider, J. und Wetzel, P. (2005) The Hamburg Ocean Carbon Cycle Model HAMOCC5.1 - Technical Description Release 1.1.. Open Access . Reports on Earth System Science = Berichte zur Erdsystemforschung, 14 . Max-Planck-Institute for Meteorology, Hamburg, 50 pp.

Diese Liste wurde am Tue Nov 13 15:24:40 2018 CET generiert.