Items where Author is "Ratmeyer, Volker"

Fischer, G, Neuer, S, Ramondenc, S, Müller, TJ, Donner, B, Ruhland, G, Ratmeyer, V, Meinecke, G, Nowald, N, Klann, M and Wefer, G (2020) Long-term changes of particle flux in the Canary Basin between 1991 and 2009 and comparison to sediment trap records off Mauritania. Frontiers in Earth Science, 8. doi:10.3389/feart.2020.00280

Fischer, G, Romero, OE, Merkel, U, Donner, B, Iversen, MH, Nowald, N, Ratmeyer, V, Ruhland, G, Klann, M and Wefer, G (2016) Deep ocean mass fluxes in the coastal upwelling off Mauritania from 1988 to 2012: variability on seasonal to decadal timescales. Biogeosciences, 13(10). 3071-3090. doi:10.5194/bg-13-3071-2016

Nowald, N, Ratmeyer, V and Wefer, G (2016) MARUM-Squid - a powerful, yet compact 2000 m ROV system designed for marine research operations from smaller vessels. OCEANS 2016 MTS/IIIE Monterey. 1-4. doi:10.1109/OCEANS.2016.7761353

Kopf, AJ, Freudenthal, T, Ratmeyer, V, Bergenthal, M, Lange, M, Fleischmann, T, Hammerschmidt, S, Seiter, C and Wefer, G (2015) Simple, affordable, and sustainable borehole observatories for complex monitoring objectives. Geoscientific Instrumentation, Methods and Data Systems, 4(1). 99-109. doi:10.5194/gi-4-99-2015

Nowald, N, Iversen, MH, Fischer, G, Ratmeyer, V and Wefer, G (2015) Time series of in-situ particle properties and sediment trap fluxes in the coastal upwelling filament off Cape Blanc, Mauritania. Progress in Oceanography, 137. 1-11. doi:10.1016/j.pocean.2014.12.015

Marcon, Y, Kottmann, R, Ratmeyer, V and Boetius, A (2015) A participative tool for sharing, annotating and archiving submarine video data. Proceedings of the OCEANS 2015 - MTS/IEEE Washington Conference. 1-7.

Meinecke, G, Albiez, J, Joyeux, S, Ratmeyer, V and Renken, J (2014) OROCOS based control software of the developed MARUM Hybrid-ROV for under-ice applications. 2013 OCEANS - San Diego (OCEANS-IEEE Series). 1-6.

Wefer, G, Strasser, M, Besuden, E, Büttner, H, Diekamp, V, Dinten, D, dos Santos Ferreira, C, Fink, HG, Franke, P, Fujiwara, T, Geprägs, P, Ikehara, K, Ishitsuka, K, Kanamatsu, T, Kawamura, K, Kimura, T, Kioka, A, Kitada, K, Klar, S, Kölling, M, Kopiske, E, Mai, HA, Marcon, Y, Meinecke, G, Meyer, P, Osada, Y, Podszun, L, Ratmeyer, V, Renken, J, Römer, M, Sato, T, Schmidt, W, Seiter, C, Wangenheim, L and Zarrouk, M (2014) Report and preliminary results of R/V SONNE Cruise SO219A, Tohoku-Oki Earthquake - Japan Trench, Yokohama - Yokohama, 08.03.2012 - 06.04.2012. Berichte, MARUM – Zentrum für Marine Umweltwissenschaften, Fachbereich Geowissenschaften, Universität Bremen, 301. urn:nbn:de:gbv:46-00103574-16

Fischer, G, Neuer, S, Davenport, B, Helmke, P, Schlitzer, R, Romero, OE, Ratmeyer, V, Donner, B, Freudenthal, T, Meggers, H and Wefer, G (2010) The Northwest African Margin. In: Liu, KK, Atkinson, L, Quiñones, R and Talaue-McManus, L (eds.) Carbon and Nutrient Fluxes in Continental Margins: A Global Synthesis. The IGBP Series. Springer, Berlin, Heidelberg, 78-102.

Ratmeyer, V and Rigaud, V (2009) Europe's Growing Fleet of Scientific Deepwater ROVs: Emerging Demands for Interchange, Workflow Enhancement and Training. OCEANS 2009 - EUROPE (OCEANS-IEEE Series), 1 and . 670-675. doi:10.1109/OCEANSE.2009.5278157

Nowald, N, Fischer, G, Ratmeyer, V, Iversen, MH, Reuter, C and Wefer, G (2009) In-situ sinking speed measurements of marine snow aggregates aquired with a settling chamber mounted to the Cherokee ROV. OCEANS 2009 - EUROPE (OCEANS-IEEE Series). 1-6. doi:10.1109/OCEANSE.2009.5278186

Fischer, G, Karakas, G, Blaas, M, Ratmeyer, V, Nowald, N, Schlitzer, R, Helmke, P, Davenport, R, Donner, B, Neuer, S and Wefer, G (2009) Mineral ballast and particle settling rates in the coastal upwelling system off NW Africa and the South Atlantic. International Journal of Earth Sciences, 98(2). 281-298. doi:10.1007/s00531-007-0234-7

Nowald, N, Karakas, G, Ratmeyer, V, Fischer, G, Schlitzer, R, Davenport, R and Wefer, G (2006) Distribution and transport processes of marine particulate matter off Cape Blanc (NW-Africa): results from vertical camera profiles. Ocean Science Discussions, 3. 903-938. doi:10.5194/osd-3-903-2006

Ratmeyer, V and et al (2006) Report and preliminary results of RV METEOR Cruise M61/3. Development of Carbonate Mounds on the Celtic Continental Margin, Northeast Atlantic. Cork (Ireland) - Ponta Delgada (Portugal), 04. - 21.06.2004. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 247. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000106793

Stuut, JB, Zabel, M, Ratmeyer, V, Helmke, P, Schefuß, E, Lavik, G and Schneider, RR (2005) Provenance of present-day eolian dust collected off NW Africa. Journal of Geophysical Research-Atmospheres, 110. D04202. doi:10.1029/2004JD005161

Fischer, G, Wefer, G, Romero, OE, Dittert, N, Ratmeyer, V and Donner, B (2004) Transfer of particles into the deep Atlantic and the global ocean: Control of nutrient supply and ballast production. In: Wefer, G, Mulitza, S and Ratmeyer, V (eds.) The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems. Springer, Berlin, Heidelberg, 21-46.

Schefuß, E, Ratmeyer, V, Stuut, JB, Jansen, JHF and Sinninghe Damsté, JS (2003) Carbon isotope analyses of n-alkanes in dust from the lower atmosphere over the central eastern Atlantic. Geochimica et Cosmochimica Acta, 67(10). 1757-1767. doi:10.1016/S0016-7037(02)01414-X

Ratmeyer, V (1996) Untersuchungen zum Eintrag und Transport lithogener und organischer partikulärer Substanz im östlichen subtropischen Nordatlantik. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 085. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000102130