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Number of items: 81.

Article in a Scientific Journal - peer-reviewed

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Shen, S. G., Thompson, A. R., Correa, J., Fietzek, P., Ayón, P. and Checkley, D. M. (2017) Spatial patterns of Anchoveta (Engraulis ringens) eggs and larvae in relation to p CO 2 in the Peruvian upwelling system Proceedings of the Royal Society B: Biological Sciences, 284 (1855). p. 20170509. DOI 10.1098/rspb.2017.0509.

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McGinnis, D. F., Bilsley, N., Schmidt, M., Fietzek, P., Bodmer, P., Premke, K., Lorke, A. and Flury, S. (2016) Deconstructing methane emissions from a small Northern-European river: Hydrodynamics and temperature as key drivers Environmental Science & Technology, 50 (21). pp. 11680-11687. DOI 10.1021/acs.est.6b03268.

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Walter, S., Kock, A., Steinhoff, T., Fiedler, B., Fietzek, P., Kaiser, J., Krol, M. C., Popa, M. E., Chen, Q., Tanhua, T. and Röckmann, T. (2016) Isotopic evidence for biogenic molecular hydrogen production in the Atlantic Ocean Biogeosciences (BG), 13 . pp. 323-340. DOI 10.5194/bg-13-323-2016.

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Bittig, H. C., Fiedler, B., Fietzek, P. and Körtzinger, A. (2015) Pressure response of Aanderaa and Sea-Bird oxygen optodes Journal of Atmospheric and Oceanic Technology, 32 . pp. 2305-2317. DOI 10.1175/JTECH-D-15-0108.1.

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Atamanchuk, D., Tengberg, A., Aleynik, D., Fietzek, P., Shitashima, K., Lichtschlag, A., Hall, P. O. J. and Stahl, H. (2015) Detection of CO2 leakage from a simulated sub-seabed storage site using three different types of pCO2 sensors International Journal of Greenhouse Gas Control, 38 . pp. 121-134. DOI 10.1016/j.ijggc.2014.10.021.

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Fietzek, P., Fiedler, B., Steinhoff, T. and Körtzinger, A. (2014) In situ quality assessment of a novel underwater pCO2 sensor based on membrane equilibration and NDIR spectrometry Journal of Atmospheric and Oceanic Technology, 31 (1). pp. 181-196. DOI 10.1175/JTECH-D-13-00083.1.

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Fiedler, B., Fietzek, P., Vieira, N., Silva, P., Bittig, H. C. and Körtzinger, A. (2013) In situ CO2 and O2 measurements on a profiling float Journal of Atmospheric and Oceanic Technology, 30 . pp. 112-126. DOI 10.1175/JTECH-D-12-00043.1.

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Maeck, A., DelSontro, T., McGinnis, D. F., Fischer, H., Flury, S., Schmidt, M., Fietzek, P. and Lorke, A. (2013) Sediment Trapping by Dams Creates Methane Emission Hot Spots Environmental Science & Technology, 47 (15). pp. 8130-8137. DOI 10.1021/es4003907.

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Becker, M., Andersen, N., Fiedler, B., Fietzek, P., Körtzinger, A., Steinhoff, T. and Friedrichs, G. (2012) Using cavity ringdown spectroscopy for continuous monitoring of δ13C(CO2) and ƒCO2 in the surface ocean Limnology and Oceanography: Methods, 10 . pp. 752-766. DOI 10.4319/lom.2012.10.752.

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Caramanna, G., Fietzek, P. and Maroto-Valer, M. (2011) Monitoring techniques of a natural analogue for sub-seabed CO2 leakages Energy Procedia, 4 . pp. 3262-3268. DOI 10.1016/j.egypro.2011.02.245.

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Waldmann, C., Tamburri, M., Prien, R. D. and Fietzek, P. (2010) Assessment of sensor performance Ocean Science, 6 . pp. 235-245. DOI 10.5194/os-6-235-2010.

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Kramp, M., Gaillard, F., Blouch, P. and Fietzek, P. (2010) Scientific data acquisition by ocean-going sailing yachts: The OceanoScientific® Programme Revue de l'Electricite et de l'Electronique : REE, 10 . pp. 52-60.

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Friedrichs, G., Bock, J., Temps, F., Fietzek, P., Körtzinger, A. and Wallace, D. W. R. (2010) Toward continuous monitoring of seawater 13CO2/12CO2 isotope ratio and pCO2: Performance of cavity ringdown spectroscopy and gas matrix effects Limnology and Oceanography: Methods, 8 . pp. 539-551. DOI 10.4319/lom.2010.8.539.

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Moore, C., Barnard, A., Fietzek, P., Lewis, M. R., Sosik, H. M., White, S. and Zielinski, O. (2009) Optical tools for ocean monitoring and research Ocean Science, 5 . pp. 661-684. DOI 10.5194/os-5-661-2009.

Article in a Scientific Journal - without review

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Saderne, V., Fietzek, P., Müller, J. D., Körtzinger, A. and Hiebenthal, C. (2017) Intense pCO2 and [O2] Oscillations in a Mussel-Seagrass Habitat: Implications for Calcification Biogeosciences Discussions . pp. 1-33. DOI 10.5194/bg-2017-351.

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Saderne, V., Fietzek, P., Aßmann, S., Körtzinger, A. and Hiebenthal, C. (2015) Seagrass beds as ocean acidification refuges for mussels? High resolution measurements of pCO2 and O2 in a Zostera marina and Mytilus edulis mosaic habitat Biogeosciences Discussions, 12 (14). pp. 11423-11461. DOI 10.5194/bgd-12-11423-2015.


Frank, C., Fietzek, P. and Sobin, J. (2014) Determination of carbonate parameters in seawater International Ocean Systems, 18 (2).


Fietzek, P., Thomsen, J. and Esser, D. (2013) Ocean acidification investigations in the Kiel Fjord International Ocean Systems, 17 (2). pp. 11-14.


Fietzek, P., Esser, D. and Kramer, S. (2012) Greenhouse gas investigations in rivers, lakes and oceans International Ocean Systems, 16 (2). pp. 14-16.


Fietzek, P., Kramer, S. and Esser, D. (2011) Measuring dissolved carbon dioxide and methane on modern platforms International Ocean Systems, 15 (2). pp. 10-12.

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Fiedler, B., Fietzek, P. and Körtzinger, A. (2011) When Chemical Oceanographers go robotic – first high-quality CO2 measurements from profiling float IFM-GEOMAR Annual Report, 2010 . pp. 28-29.


Kramp, M., Gaillard, F., Blouch, P. and Fietzek, P. (2010) The OceanoScientific® Programme IEEE Earthzine, Observing the Oceans .

Book chapter

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Lunge, M., Frank, C., Fietzek, P., Esser, D., Ruth, T., Audersch, S., von Lukas, U., Nuppenau, V., Kühn, M., Appel, F., Schriever, G., Rudorf, U., Flögel, S. and Pfannkuche, O. (2016) FlexMoT – Flexible Umweltmonitoring-Plattform für Notfall- und Langzeiteinsätze im Offshore-Bereich Schlussbericht FLEXMOT. Flexibles Langzeit-Monitoring Tool. Fraunhofer IGD, Rostock, pp. 109-123.

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Fietzek, P., Kramer, S. and Esser, D. (2011) Deployments of the HydroC™ (CO2/CH4) on stationary and mobile platforms – Merging the trends in the field of platform and sensor development Oceans 2011. IEEXplore, ., pp. 1-9. ISBN 978-1-4577-1427-6

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Fietzek, P. and Körtzinger, A. (2010) Optimization of a Membrane-Based NDIR Sensor for Dissolved Carbon Dioxide Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society Conference. ESA Publication, WPP-306 . OceanObs'09, Venice, Italy, pp. 1-4. DOI 10.5270/OceanObs09.

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Byrne, R. H., DeGrandpre, M. D., Short, R. T., Martz, T. R., Merlivat, L., McNeil, C., Sayles, F. L., Bell, R. and Fietzek, P. (2010) Sensors and Systems for in situ Observations of Marine Carbon Dioxide System Variables Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society. ESA Publication, WPP-306 . OceanObs'09, Venice, Italy, p. 8. DOI 10.5270/OceanObs09.cwp.13.

Conference paper

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Lutken, C. B., Macelloni, L., Sleeper, K., D'Emidio, M., McGee, T., Simonetti, A., Knapp, J. H., Knapp, C. C., Caruso, S., Chanton, J., Lapham, L., Lodi, M., Ingrassia, M., Higley, P., Brunner, C., Camilli, R., Battista, B., Short, T., Bell, R. and Fietzek, P. (2011) New discoveries at Woolsey Mound, MC118, northern Gulf of Mexico [Paper] In: International Conference on Gas Hydrates, 7th, ICGH 2011, 17.-21.07.2011, Edinburgh, UK.

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Kramp, M., Gaillard, F., Blouch, P. and Fietzek, P. (2010) The OceanoScientific® Programme [Paper] In: OCOSS 2010 (Ocean & Coastal Observation: Sensors and Systems), 21.-23.06.2010, Brest, France.

Conference presentation


Fietzek, P. (2015) CO2, CH4, O2 and Total Alkalinity (TA) Measurements in Water [Talk] In: Ocean Business 2015, 14.-16.04.2015, Southampton, UK.


Aßmann, S. and Fietzek, P. (2015) pCO2 Sensors [Talk] In: IOCCP Sensors Summer Course 2015, 22.06.-01.07.2015, Kristineberg, Sweden.

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Aßmann, S., Fietzek, P., Frank, C., Petersen, W., Körtzinger, A. and Linke, P. (2014) Determination of Total Alkalinity, pH and pCO2 in Seawater [Talk] In: Oceanology International, 11.-13.03.2014, London, UK.


Fietzek, P. (2014) Development and Assessment of an Underwater Sensor for the Measurement of Carbon Dioxide Partial Pressure (pCO2) [Talk] In: FB2 Seminar, GEOMAR, 26.05.2014, Kiel, Germany.


Saderne, V., Fietzek, P., Aßmann, S., Hiebenthal, C. and Martz, T. A. (2014) In situ continuous recording of the carbonate chemistry interactions between mussel and seagrass beds subjected to upwelling events using pH and pCO2 sensors [Talk] In: Ocean Sciences Meeting 2014, 23.-28.02.2014, Honululu, Hawaii, USA.


Fietzek, P., Fiedler, B., Steinhoff, T. and Körtzinger, A. (2014) Quality assessment and recent improvements of the HydroC™ CO2 [Talk] In: Ocean Sciences Meeting 2014, 23.-28.02.2014, Honululu, Hawaii, USA.


Aßmann, S., Frank, C., Fietzek, P., Körtzinger, A. and Linke, P. (2014) Realization of an autonomous total alkalinity sensor for surface water applications [Talk] In: Ocean Sciences Meeting 2014, 23.-28.02.2014, Honululu, Hawaii, USA.


Aßmann, S., Frank, C., Fietzek, P., Körtzinger, A., Petersen, W. and Linke, P. (2013) Determination of the Carbonate Parameters in Seawater [Invited talk] In: Joint meeting of the Marine Biogeochemistry Forum of the Challenger Society and the Marine Studies Group of the Geological Society, Marine Biogeochemistry: Past, Present and Future, 11.-13.09.2013, Leeds, UK.


Fiedler, B., Fietzek, P., Bittig, H. C., Hahn, J., Steinhoff, T., Karstensen, J. and Körtzinger, A. (2013) Recent Development on Sensors and Calibrations Approaches at GEOMAR [Invited talk] In: VITALS Workshop, 17.-18.10.2013, Halifax, Canada.


Fietzek, P. (2013) Unterwasserplattformen einen (zusätzlichen) Sinn geben – die Messung gelöster Gase im Ozean und anderen Gewässern [Talk] In: 10. Kieler Marktplatz – Ozeanbeobachtungen, 18.06.2013, Kiel, Germany.


Fiedler, B., Fietzek, P., Silva, P., Vieira, N., Steinhoff, T., Bittig, H. C., Karstensen, J. and Körtzinger, A. (2013) When chemical oceanographers go robotic – Towards accurate pCO2 measurements on novel autonomous platforms [Invited talk] In: ESA-EGU-SOLAS Science Workshop "Air-sea Gas Flux Climatology; Progress and Future Prospects", 24.-27.09.2013, Brest, France.


Fietzek, P. (2013) pCO2 Measurements with the HydroC™ - Overview, latest Developments, Field data [Talk] In: OceanBusiness 2013, 09.04.2013, Southampton, UK.


Fietzek, P. (2012) Applying Optical Absorption Techniques in the Deep Sea - Underwater Greenhouse Gas Measurements [Talk] In: mirsens2, 18.-20.10.2012, Wroclaw, Poland.

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Fietzek, P. (2012) Carbon dioxide measurements in flow-through applications – experiences with the HydroC™-CO2-FT [Talk] In: AquaLife Seminar 2012, 05.-06.06.2012, Kiel, Germany.


Maeck, A., Flury, S., DelSontro, T., Schmidt, M., McGinnis, D., Fischer, H., Fietzek, P. and Lorke, A. (2012) Identifying hot-spot methane emission sites in an impounded river [Talk] In: EGU General Assembly 2012, 22.04.-27.04.2012, Vienna, Austria.


Fietzek, P. (2012) Underwater Greenhouse Gas Measurements – A Fascinating and Growing Field of Application for Optical Absorption Techniques [Talk] In: IR WORKshop 2012, 12.-13.11.2012, Olching, Germany.


Fietzek, P. (2012) The measurement of dissolved greenhouse gases (CO2 and CH4) with NDIR detector and membrane equilibration based instruments - Design, applications and results of the HydroC™ [Invited talk] In: BAH Colloquium, Biologische Anstalt Helgoland, 16.04.2012, Helgoland, Germany.


Schmidt, M., Linke, P., Fietzek, P., Esser, D. and Themann, S. (2011) How to identify “complex” offshore gas and fluid seepage – Accessories from the geochemical and hydroacoustic toolbox [Talk] In: ADCPs in Action Conference, 02.-05.10.2011, San Diego, USA.


Fietzek, P., Kramer, S. and Esser, D. (2011) Integrating sensors for dissolved gas concentrations (CO2 and CH4) into modern measuring platforms [Talk] In: 5th EGO Meeting and Glider School, 14.-18.03.2011, Las Palmas, Gran Canary, Spain.

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Fietzek, P. (2011) Measuring dissolved gases (CO2 and CH4) with the HydroC™ in flow-through applications and on other platforms – Past measurements and future advancements [Talk] In: Ferrybox Workshop 2011 FerryBoxes as Part of Operational Observation Networks: Monitoring versus Scientific Aspects, 01.-02.09.2011, Geesthacht, Germany.


Fietzek, P. (2011) Underwater pCO2 measurements by means of a membrane based NDIR sensor – The HydroC™/CO2 [Talk] In: OceanBusiness 2011, 05.-07.04.2011, National Oceanography Center, Southampton, UK.


Fietzek, P. (2010) Measuring dissolved CO2 using a membrane based NDIR sensor - the development of the HydroC™/CO2 [Talk] In: 46. Marine Measurement Forum, 19.05.2010, London, UK.


Fietzek, P. (2010) pCO2 measurements by means of a membrane based NDIR sensor - the HydroCTM/CO2 [Talk] In: POETS Corner Series, 08.04, Southampton, UK.


Fietzek, P. (2009) Unterwassergassensorik für Wissenschaft und Industrie - Arbeit mit und an einem Sensor für gelöstes CO2 [Talk] In: Energie aus dem Meer - Wissenschaft trifft Wirtschaft, 09.09, Kiel.


Fietzek, P. (2009) The measurement of dissolved gases in seawater by means of membranes - Optimization of an underwater NDIR-pCO2 sensor [Other] In: FB2 Seminar, Leibniz-Institute of Marine Sciences (IFM-GEOMAR), 16.02.2009, Kiel, Germany.

Conference poster


Fietzek, P., Schmidt, M., Linke, P. and Frank, C. (2015) Laser-based Underwater Sensor for the Measurement of Methane Partial Pressure [Poster] In: Marine Applications and Perspectives of Cavity Enhanced Optical Detection Schemes, 20.-21.04.2015, Kiel, Germany.


Saderne, V., Fietzek, P., Aßmann, S., Hiebenthal, C., Martz, T. and Körtzinger, A. (2014) Biogenic seawater corrosiveness for calcium carbonates in a seagrass - mussel mosaic habitat [Poster] In: Future Ocean: Cluster Retreat 2014, 29.-30.09.2014, Schleswig, Germany.


Fiedler, B., Fietzek, P., Silva, P., Karstensen, J. and Körtzinger, A. (2014) Closing gaps: Investigating the marine carbon cycle using autonomous mobile platforms [Poster] In: Ocean Sciences Meeting 2014, 23.-28.02.2014, Honululu, Hawaii, USA.


Fietzek, P., Fiedler, B., Steinhoff, T. and Körtzinger, A. (2013) Detailed accuracy assessment of a novel underwater pCO2 sensor [Poster] In: CarboChange Annual Project Meeting 2013, 24.-26.04.2013, Norwich, UK.


Saderne, V., Herman, P. M. J. and Fietzek, P. (2012) Extreme variations of pCO2 and pH in a Baltic macrophyte meadow in summer: Evidence of the effects of photosynthesis and upwelling [Poster] In: EGU General Assembly 2012, 22.-27.04.2012, Vienna, Austria.


Fiedler, B., Fietzek, P., Vieira, N., Silva, P., Bittig, H. C. and Körtzinger, A. (2012) Going Beyond Argo-O2: In Situ CO2 and O2 Measurements on Argo Floats [Poster] In: 4. Argo Science Workshop, 27.-29.09.2012, Venice, Italy.


Fiedler, B., Fietzek, P., Karstensen, J., Vieira, N., Bittig, H. C., Brandt, P. and Körtzinger, A. (2012) In Situ CO2 and O2 measurements on a profiling float at the Cape Verde Ocean Observatory | CVOO [Poster] In: 5. SOPRAN Annual Meeting, 20.-21.03.2012, Kiel, Germany.


Becker, M., Andersen, N., Fiedler, B., Fietzek, P., Körtzinger, A., Steinhoff, T. and Friedrichs, G. (2012) Methodological Issues of CRDS Based Underway Monitoring of Surface Ocean d13C(CO2) [Poster] In: SOLAS Open Science Conference, 07. - 10.05.2012, Cle Elum, Washington, USA.


Fiedler, B., Steinhoff, T., Fietzek, P. and Körtzinger, A. and GEOMAR, Helmholtz Centre for Ocean Research (2012) Observing diel cycles of biogeochemical parameters with an autonomous Lagrangian surface drifter [Poster] In: SOLAS Open Science Conference, 07. - 10.05.2012, Cle Elum, Washington, USA.


Fietzek, P., Fiedler, B. and Körtzinger, A. (2012) Sensor evaluation of the HydroC™-CO2 from various field tests [Poster] In: Ocean Sciences Meeting 2012, 20.-24.02.2012, Salt Lake City, USA.


Fietzek, P., Fiedler, B., Steinhoff, T. and Körtzinger, A. (2012) Underwater carbon dioxide measurements with the HydroC™-CO2 – Experiences and latest results [Poster] In: Environmental sensors 2012, 23.-28.09.2012, Anglet, France.


Fiedler, B., Fietzek, P., Vieira, N., Kozlova, E., Heimann, M. and Körtzinger, A. (2011) High-Quality CO2 and O2 Measurements from a Profiling Float at the Cape Verde Observatory (CVO) [Poster] In: 4. Annual SOPRAN Meeting, 22.-23.03.2011, Heidelberg, Germany.


Bilsley, N. A., Fietzek, P., Ghamraoui, O., Mäck, A., Flury, S., Al-Farawati, R., McGinnis, D. and Schmidt, M. (2011) Temporal and Spatial Variability of Methane in a Freshwater Outflow to the Baltic Sea [Poster] In: AGU Fall Meeting 2011, 05.-09.12.2011, San Francisco, USA.


Becker, M., Fiedler, B., Fietzek, P., Körtzinger, A. and Friedrichs, G. (2010) CRDS Based Field Measurements of Surface Water pCO2 and δ13C(CO2) on two Atlantic Transects [Poster] In: 3. Biannual Symposium "Future Ocean", 13.-16.09.2010, Kiel, Germany.


Friedrichs, G., Becker, M., Bock, J., Temps, F., Fietzek, P., Körtzinger, A. and Wallace, D. W. R. (2010) Towards Continuous Monitoring of Seawater 13CO2/12CO2 Isotope Ratio: Performance of Cavity-Ringdown Spectroscopy and Gas Matrix Effects [Poster] In: Workshop on Atmospheric Chemistry: kinetics and spectroscopy, 24.-26.02, Bayreuth.


Steinhoff, T., Fiedler, B., Fietzek, P., Hoppema, M., Kuss, J., Schröder, F., Zemmelink, H. and Körtzinger, A. (2009) Intercom-parison of pCO2 instruments - classical versus new methods (T4-051) [Poster] In: 8. International Carbon Dioxide Conference, 14.-18.09, Jena.


Fietzek, P. and Körtzinger, A. (2009) Optimization of a membrane based NDIR-sensor for dissolved CO2 [Poster] In: OceanObs'09, 21.-25.09, Venedig, Italien.


Friedrichs, G., Bock, J., Temps, F., Fietzek, P., Körtzinger, A. and Wallace, D. W. R. (2009) Towards Continuous Monitoring of Seawater 13CO2/12CO2 Isotope Ratio: Performance of Cavity-Ringdown Spectroscopy and Linewidth Effects [Poster] In: SOLAS Open Science Conference, 16.-19.11, Barcelona, Spain.


Fietzek, P. and Körtzinger, A. (2008) Optimization of a membrane compound sensor for subsea pCO2 measurements [Poster] In: BIOCAT Summer School, 15.-19.09, Kiel.

Report - other report

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Klar, A., Deerberg, G., Janicki, G., Schicks, J., Riedel, M., Fietzek, P., Mosch, T., Tinivella, U., De La Fuente Ruiz, M., Gatt, P., Schwalenberg, K., Heeschen, K., Bialas, J., Pinkert, S., Tang, A. M., Kvamme, B., Spangenberg, E., English, N., Bertrand, C., Parlaktuna, M., Sahoo, S. K., Bouillot, B., Desmedt, A. and Wallmann, K. (2019) Marine gas hydrate technology: State of the art and future possibilities for Europe COST Action ES 1405, WG2 report, 2019 . MIGRATE. DOI 10.3289/MIGRATE_WG2.2019.

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Mowlem, M., Achterberg, E. P., Alcaraz, D., Arundell, M., Aßmann, S., Delory, E., Nielsen, E. E. G., Fietzek, P., Hahn, T., Harrington, K., Janssen, F., Kiltgaard Hansen, B., Körtzinger, A., Metfies, K., Monk, S., Murray, E., Nehir, M., Robidart, J., Schaap, A., Simpson, P., Sprong, P. and Wolf, C. (2018) Validation of sensor and instrumentation innovations AtlantOS Deliverable, D6.3 . AtlantOS. DOI 10.3289/atlantos_d6.3.

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Watson, A., Lefevre, N., Smythe, T., Hartmann, S., Reverdin, G., Gonzalez-Davila, M. and Fietzek, P. (2018) SOOP Network Enhancement Report AtlantOS Deliverable, D2.4 . AtlantOS. DOI 10.3289/AtlantOS_D2.4.

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Klar, A., Deerberg, G., Janicki, G., Schicks, J., Riedel, M., Fietzek, P., Mosch, T., Tinivella, U., De La Fuente Ruiz, M., Gatt, P., Schwalenberg, K., Heeschen, K., Bialas, J., Pinkert, S., Tang, A. M., Kvamme, B., Spangenberg, E., English, N., Bertrand, C., Parlaktuna, M., Sahoo, S. K. and Wallmann, K. (2017) Gas hydrate technology: state of the art and future possibilities for Europe COST Report . UNSPECIFIED.

Report - Data Report

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Hiebenthal, C., Fietzek, P., Müller, J. D., Otto, S., Rehder, G., Paulsen, M., Stuhr, A., Clemmesen, C. and Melzner, F. (2017) Kiel fjord carbonate chemistry data between 2015 (February) and 2016 (January) GEOMAR.

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Hiebenthal, C., Fietzek, P., Thomsen, J., Saderne, V. and Melzner, F. (2016) Kiel fjord pCO2 datasets between 2012 (July) and 2015 (January) measured using a HydroC® pCO2 sensor GEOMAR.

This list was generated on Sat Aug 8 04:02:07 2020 CEST.