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  • 11
    Publication Date: 2019-09-23
    Description: Summary - In our recent contribution to the special issue on plankton dynamics in a fast-changing world, we outlined some general predictions of plankton dynamics in different climate regions now and in future, building on the Plankton Ecology Group (PEG) model (de Senerpont Domis et al., 2013). - We proposed a stylised version of plankton dynamics in Fig. 3 of our article and stated that these patterns need to be further elaborated. Our figure displays annual plankton dynamics now and in future in oligotrophic, mesotrophic and eutrophic lakes in arctic, temperate and tropical climate zones. - We fully agree with Sarmento, Amado & Descy (2013) that more data on tropical regions are needed, and we are looking forward to the emergence of published data from tropical regions to extend our still-limited understanding of plankton dynamics in these regions. - Sarmento et al. (2013) did not agree with our predictions on plankton dynamics for hydrology-driven water systems in the tropics. Unfortunately, however, Sarmento et al. (2013) did not substantiate their statements with the much-needed data on plankton dynamics in the tropics. Moreover, they merely provide an overview of precipitation patterns in the tropics, not an alternative hypothesis for our predictions.
    Type: Article , PeerReviewed
    Format: text
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  • 12
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    GEOMAR Helmholtz-Zentrum für Ozeanforschung
    In:  GEOMAR Report, N. Ser. 004 . GEOMAR Helmholtz-Zentrum für Ozeanforschung , Kiel, Germany, 60 pp.
    Publication Date: 2019-06-13
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
    Format: text
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  • 13
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    GEOMAR Helmholtz-Zentrum für Ozeanforschung
    In:  GEOMAR Report, N. Ser. 015 . GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, Germany, 111 pp.
    Publication Date: 2016-10-28
    Description: During the two legs of cruise MSM34 of R/V MARIA S. MERIAN regional 2D seismic surveying, high resolution 2D and 3D seismic imaging, geo-chemical sampling, heatflow measurements and long-term piezometer installations were undertaken. A grid of 28 2D seismic profiles was collected across the palaeo Danube delta. A number of inactive and partly buried channel systems could be mapped. Most of them were underlain by one or more bottom simulation reflectors (BSR). Based on the seismic brute stack images and the limits of the MeBo drilling device a prospective channel system with indications for possible gas hydrate formation at shallow depth (BSR, inverted strong amplitudes) could be identified in about 1500 m water depth. High resolution 2D seismic and 3D P-Cable seismic were used together with OBS deployments in order to allow structural mapping and physical description of the channel infill. Heatflow measurements and geochemical analyses of gravity and multi corer samples accompany these investigations. Neither the multibeam water column images nor Parasound records show any evidence of flares (gas bubbles in the water column) in this working area suggesting a well sealed hydrate reservoir. Active gas expulsion from the seafloor was observed at about 200 m water depth circling around a slump area. The base plane of the failed sediment volume builds the current seafloor at about 600 m to 700 m water depth. On regional 2D seismic profiles a BSR has been mapped underneath the slope failure with unexpectedly strong upward bending. High resolution 2D and 3D P-Cable seismic investigations with complementary OBS deployment will allow imaging the BSR outline. Moreover velocity analyses, heatflow measurements and geo-chemical samples will be available for a detailed description of hydrate distribution and sediment parameters. In a third working area high resolution 2D seismic reflection profiles were acquired across a fully buried channel system. Together with the regional seismic lines slope failure of the channel fill material can be studied across the slope extension of the system.
    Type: Report , NonPeerReviewed
    Format: text
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  • 14
    Publication Date: 2022-02-18
    Description: Zielsetzung des Forschungsprojektes war es, Klimaschutzszenarien für Deutschland zu entwickeln, die hinsichtlich ihres klimapolitischen Ziels, d.h. ihres langfristigen Emissionsminderungsbeitrags, im Wesentlichen gleich sind, die aber zum Teil auf unterschiedliche Optionen zur Reduktion der energiebedingten CO2-Emissionen setzen. Diese Klimaschutzszenarien wurden hinsichtlich sozioökonomischer und ökologischer Kriterien evaluiert und miteinander verglichen.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: report , doc-type:report
    Format: application/pdf
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  • 15
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    GEOMAR Helmholtz-Zentrum für Ozeanforschung
    In:  GEOMAR Report, N. Ser. 021 . GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, Germany, 65 pp.
    Publication Date: 2016-10-28
    Type: Report , NonPeerReviewed
    Format: text
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