GEOMAR  Hummels, Rebecca  hummels_alle

Alle Publikationen von Rebecca Hummels

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Number of items: 117.

Articles in a Scientific Journal - peer-reviewed

[thumbnail of 2025 - Aroucha - Ocean Turbulent Heat Flux Responses to Sea Surface Salinity Variability.pdf]

Aroucha, L. C. , Hummels, R. and Lübbecke, J. F. (2025) Ocean Turbulent Heat Flux Responses to Sea Surface Salinity Variability During Benguela Niños and Niñas. Open Access Geophysical Research Letters, 52 (21). Art.Nr.: e2025GL117793. DOI 10.1029/2025GL117793.

[thumbnail of shihora25_AMOC_DWBC_bottom_presssure_VIKING20X.pdf]

Shihora, L., Martin, T. , Hans, A. C. , Hummels, R. , Schindelegger, M. and Dobslaw, H. (2025) Relating Atlantic meridional deep-water transport to ocean bottom pressure variations as a target for satellite gravimetry missions. Open Access Ocean Science, 21 (4). pp. 1533-1548. DOI 10.5194/os-21-1533-2025.

[thumbnail of 1-s2.0-S0079661125000679-main-1.pdf] [thumbnail of 1-s2.0-S0079661125000679-mmc1-1.docx]

Schütte, F. , Hans, A. C., Schulz, M., Hummels, R. , Assokpa, O., Brandt, P. , Kiko, R. , Körtzinger, A. , Fiedler, B. , Fischer, T. , Rodrigues, E., Hoving, H. J. T. and Hauss, H. (2025) Linking physical processes to biological responses: Interdisciplinary observational insights into the enhanced biological productivity of the Cape Verde Archipelago. Open Access Progress in Oceanography, 235 . Art.Nr. 103479. DOI 10.1016/j.pocean.2025.103479.

[thumbnail of gmd-18-1189-2025.pdf]

Bastin, S. , Koldunov, A., Schütte, F. , Gutjahr, O., Mrozowska, M. A., Fischer, T. , Shevchenko, R., Kumar, A., Koldunov, N., Haak, H., Brüggemann, N., Hummels, R. , Specht, M. S., Jungclaus, J., Danilov, S., Dengler, M. and Jochum, M. (2025) Sensitivity of the tropical Atlantic to vertical mixing in two ocean models (ICON-O v2.6.6 and FESOM v2.5). Open Access Geoscientific Model Development, 18 (4). pp. 1189-1220. DOI 10.5194/gmd-18-1189-2025.

[thumbnail of JGR Oceans - 2024 - Mrozowska - Using NIW Observations to Assess Mixed Layer Parameterizations A Case Study in the.pdf]

Mrozowska, M. A., Jochum, M., Bastin, S., Hummels, R. , Koldunov, A., Dengler, M. , Fischer, T. , Nuterman, R. and Hansen, R. R. (2024) Using NIW Observations to Assess Mixed Layer Parameterizations: A Case Study in the Tropical Atlantic. Journal of Geophysical Research: Oceans, 129 (5). Art.Nr. e2024JC020985. DOI 10.1029/2024JC020985.

Chidichimo, M. P., Perez, R. C., Speich, S., Kersalé, M., Sprintall, J., Dong, S., Lamont, T., Sato, O. T., Chereskin, T. K., Hummels, R. and Schmid, C. (2023) Energetic overturning flows, dynamic interocean exchanges, and ocean warming observed in the South Atlantic. Open Access Communications Earth & Environment, 4 (1). Art.Nr. 10. DOI 10.1038/s43247-022-00644-x.

[thumbnail of s43247-022-00646-9.pdf]

Perez, R., Garzoli, S., Hummels, R. and Ansorge, I. (2023) Inclusive science in the South Atlantic. Open Access Communications Earth & Environment, 4 (1). Art.Nr. 11. DOI 10.1038/s43247-022-00646-9.

[thumbnail of fmars-09-910979.pdf]

Tuchen, F. P. , Brandt, P. , Hahn, J. , Hummels, R. , Krahmann, G. , Bourlès, B., Provost, C., McPhaden, M. J. and Toole, J. M. (2022) Two Decades of Full-Depth Current Velocity Observations From a Moored Observatory in the Central Equatorial Atlantic at 0°N, 23°W. Open Access Frontiers in Marine Science, 9 . Art.Nr. 910979. DOI 10.3389/fmars.2022.910979.

[thumbnail of JGR Oceans - 2022 - Tuchen - Transports and Pathways of the Tropical AMOC Return Flow From Argo Data and Shipboard Velocity.pdf] [thumbnail of 2021jc018115-sup-0001-supporting.docx]

Tuchen, F. P. , Brandt, P. , Lübbecke, J. F. and Hummels, R. (2022) Transports and Pathways of the Tropical AMOC Return Flow From Argo Data and Shipboard Velocity Measurements. Open Access Journal of Geophysical Research: Oceans, 127 (2). Art.Nr. e2021JC018115. DOI 10.1029/2021JC018115.

[thumbnail of os-17-1177-2021.pdf]

Biastoch, A. , Schwarzkopf, F. U. , Getzlaff, K. , Rühs, S. , Martin, T. , Scheinert, M. , Schulzki, T. G. , Handmann, P. , Hummels, R. and Böning, C. W. (2021) Regional Imprints of Changes in the Atlantic Meridional Overturning Circulation in the Eddy-rich Ocean Model VIKING20X. Open Access Ocean Science, 17 . pp. 1177-1211. DOI 10.5194/os-17-1177-2021.

[thumbnail of os-17-265-2021.pdf]

Herrford, J., Brandt, P. , Kanzow, T., Hummels, R., Araujo, M. and Durgadoo, J. V. (2021) Seasonal variability of the Atlantic Meridional Overturning Circulation at 11° S inferred from bottom pressure measurements. Open Access Ocean Science, 17 . pp. 285-284. DOI 10.5194/os-17-265-2021.

[thumbnail of 2020JC016962.pdf] [thumbnail of 2020jc016962-sup-0001-supporting.pdf]

Manta, G. , Speich, S. , Karstensen, J. , Hummels, R. , Kersalé, M., Laxenaire, R. , Piola, A. , Chidichimo, M. P. , Sato, O. T. , Cotrim da Cunha, L. , Ansorge, I., Lamont van den Berg, T. , Schuster, U., Tanhua, T. , Kerr, R., Guerrero, R., Campos, E. and Meinen, C. S. (2021) The South Atlantic Meridional Overturning Circulation and Mesoscale Eddies in the First GO‐SHIP Section at 34.5ºS. Open Access Journal of Geophysical Research: Oceans, 126 (2). Art.Nr. e2020JC016962. DOI 10.1029/2020JC016962.

[thumbnail of ocean-observing-2021-berx.pdf]

Berx, B., Volkov, D., Baehr, J., Baringer, M., Brandt, P. , Burmeister, K., Cunningham, S., de Jong, M., de Steur, L., Dong, S., Frajka-Williams, E., Goni, G., Holliday, N. P., Hummels, R. , Ingvaldsen, R., Jochumsen, K., Johns, W., Jónsson, S., Karstensen, J. , Kieke, D., Krishfield, R., Lankhorst, M., Larsen, K., Le Bras, I., Lee, C., Li, F., Lozier, M. S., Macrander, A., McCarthy, G., Mertens, C., Moat, B., Moritz, M., Perez, R., Polyakov, I., Proshutinsky, A., Rabe, B., Rhein, M., Schmid, C., Skagseth, Ø., Smeed, D., Timmermans, M. L., von Appen, W. J., Williams, B., Woodgate, R. and Yashayaev, I. (2021) Climate-Relevant Ocean Transport Measurements in the Atlantic and Arctic Oceans. Open Access Oceanography, 34 (4). pp. 10-11. DOI 10.5670/oceanog.2021.supplement.02-04.

Hummels, R. , Dengler, M. , Rath, W. , Foltz, G. R. , Schütte, F., Fischer, T. and Brandt, P. (2020) Surface cooling caused by rare but intense near-inertial wave induced mixing in the tropical Atlantic. Open Access Nature Communications, 11 (1). Art.Nr. 3829. DOI 10.1038/s41467-020-17601-x.

[thumbnail of McCarthy_et_al-2020-Reviews_of_Geophysics.pdf]

McCarthy, G. D. , Brown, P. J. , Flagg, C. N. , Goni, G., Houpert, L. , Hughes, C. W. , Hummels, R., Inall, M. , Jochumsen, K. , Larsen, K. M. H. , Lherminier, P. , Meinen, C. S. , Moat, B. I. , Rayner, D. , Rhein, M. , Roessler, A. , Schmid, C. and Smeed, D. A. (2020) Sustainable Observations of the AMOC: Methodology and Technology. Open Access Reviews of Geophysics, 58 (1). Art.Nr. e2019RG000654. DOI 10.1029/2019RG000654.

[thumbnail of 2019JC015529.pdf]

Foltz, G. R., Hummels, R., Dengler, M. , Perez, R. C. and Araujo, M. (2020) Vertical Turbulent Cooling of the Mixed Layer in the Atlantic ITCZ and Trade Wind Regions. Open Access Journal of Geophysical Research: Oceans, 125 (2). Art.Nr. e2019JC015529. DOI 10.1029/2019JC015529.

[thumbnail of 2019JC015396.pdf]

Tuchen, F. P. , Lübbecke, J. F. , Schmidtko, S. , Hummels, R. and Böning, C. W. (2019) The Atlantic Subtropical Cells inferred from observations. Open Access Journal of Geophysical Research: Oceans, 124 (11). pp. 7591-7605. DOI 10.1029/2019JC015396.

[thumbnail of fmars-06-00423.pdf]

Todd, R. E., Chavez, F. P., Clayton, S., Cravatte, S., Goes, M., Graco, M., Lin, X., Sprintall, J., Zilberman, N. V., Archer, M., Arístegui, J., Balmaseda, M., Bane, J. M., Baringer, M. O., Barth, J. A., Beal, L. M., Brandt, P. , Calil, P. H. R., Campos, E., Centurioni, L. R., Chidichimo, M. P., Cirano, M., Cronin, M. F., Curchitser, E. N., Davis, R. E., Dengler, M. , deYoung, B., Dong, S., Escribano, R., Fassbender, A. J., Fawcett, S. E., Feng, M., Goni, G. J., Gray, A. R., Gutiérrez, D., Hebert, D., Hummels, R., Ito, S. i., Krug, M., Lacan, F., Laurindo, L., Lazar, A., Lee, C. M., Lengaigne, M., Levine, N. M., Middleton, J., Montes, I., Muglia, M., Nagai, T., Palevsky, H. I., Palter, J. B., Phillips, H. E., Piola, A., Plueddemann, A. J., Qiu, B., Rodrigues, R. R., Roughan, M., Rudnick, D. L., Rykaczewski, R. R., Saraceno, M., Seim, H., Gupta, A. S., Shannon, L., Sloyan, B. M., Sutton, A. J., Thompson, L., Plas, A. K. v. d., Volkov, D., Wilkin, J., Zhang, D. and Zhang, L. (2019) Global Perspectives on Observing Ocean Boundary Current Systems. Open Access Frontiers in Marine Science, 6 . Art.Nr. 423. DOI 10.3389/fmars.2019.00423.

[thumbnail of fmars-06-00260.pdf] [thumbnail of Data_Sheet_1_Atlantic Meridional Overturning Circulation_ Observed Transport and Variability.pdf]

Frajka-Williams, E., Ansorge, I. J., Baehr, J., Bryden, H. L., Chidichimo, M. P., Cunningham, S. A., Danabasoglu, G., Dong, S., Donohue, K. A., Elipot, S., Heimbach, P., Holliday, N. P., Hummels, R., Jackson, L. C., Karstensen, J. , Lankhorst, M., Le Bras, I. A., Lozier, M. S., McDonagh, E. L., Meinen, C. S., Mercier, H., Moat, B. I., Perez, R. C., Piecuch, C. G., Rhein, M., Srokosz, M. A., Trenberth, K. E., Bacon, S., Forget, G., Goni, G., Kieke, D., Koelling, J., Lamont, T., McCarthy, G. D., Mertens, C., Send, U., Smeed, D. A., Speich, S., van den Berg, M., Volkov, D. and Wilson, C. (2019) Atlantic Meridional Overturning Circulation: Observed Transport and Variability. Open Access Frontiers in Marine Science, 6 . Art.Nr. 260. DOI 10.3389/fmars.2019.00260.

[thumbnail of fmars-06-00206.pdf]

Foltz, G. R., Brandt, P. , Richter, I., Rodríguez-Fonseca, B., Hernandez, F., Dengler, M. , Rodrigues, R. R., Schmidt, J. O., Yu, L., Lefevre, N., Da Cunha, L. C., McPhaden, M. J., Araujo, M., Karstensen, J. , Hahn, J. , Martín-Rey, M., Patricola, C. M., Poli, P., Zuidema, P., Hummels, R., Perez, R. C., Hatje, V., Lübbecke, J. F. , Polo, I., Lumpkin, R., Bourlès, B., Asuquo, F. E., Lehodey, P., Conchon, A., Chang, P., Dandin, P., Schmid, C., Sutton, A., Giordani, H., Xue, Y., Illig, S., Losada, T., Grodsky, S. A., Gasparin, F., Lee, T., Mohino, E., Nobre, P., Wanninkhof, R., Keenlyside, N., Garcon, V., Sánchez-Gómez, E., Nnamchi, H., Drévillon, M., Storto, A., Remy, E., Lazar, A., Speich, S., Goes, M., Dorrington, T., Johns, W. E., Moum, J. N., Robinson, C., Perruche, C., de Souza, R. B., Gaye, A. T., López-Parages, J., Monerie, P. A., Castellanos, P., Benson, N. U., Hounkonnou, M. N., Duhá, J. T., Laxenaire, R. and Reul, N. (2019) The Tropical Atlantic Observing System. Open Access Frontiers in Marine Science, 6 (206). DOI 10.3389/fmars.2019.00206.

[thumbnail of Bourl-s_et_al-2019-Earth_and_Space_Science.pdf]

Bourlès, B. , Araujo, M. , McPhaden, M. J. , Brandt, P. , Foltz, G. R. , Lumpkin, R. , Giordani, H. , Hernandez, F. , Lefèvre, N. , Nobre, P. , Campos, E. , Saravanan, R. , Trotte‐Duhà, J., Dengler, M. , Hahn, J. , Hummels, R., Lübbecke, J. F. , Rouault, M. , Cotrim, L. , Sutton, A. , Jochum, M. and Perez, R. C. (2019) PIRATA: A Sustained Observing System for Tropical Atlantic Climate Research and Forecasting. Open Access Earth and Space Science, 6 (4). pp. 577-616. DOI 10.1029/2018EA000428.

[thumbnail of jpo-d-18-0059.1.pdf]

Tuchen, F. P. , Brandt, P. , Claus, M. and Hummels, R. (2018) Deep Intraseasonal Variability in the Central Equatorial Atlantic. Open Access Journal of Physical Oceanography, 48 (12). pp. 2851-2865. DOI 10.1175/JPO-D-18-0059.1.

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.

[thumbnail of Hummels_et_al-2015-Geophysical_Research_Letters.pdf] [thumbnail of grl53383-sup-0001-supinfo.docx]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M. , Veleda, D. and Durgadoo, J. V. (2015) Interannual to decadal changes in the western boundary circulation in the Atlantic at 11°S. Open Access Geophysical Research Letters, 42 (18). pp. 7615-7622. DOI 10.1002/2015GL065254.

[thumbnail of Schlundt et.al.pdf]

Schlundt, M., Brandt, P. , Dengler, M. , Hummels, R., Fischer, T. , Bumke, K., Krahmann, G. and Karstensen, J. (2014) Mixed layer heat and salinity budgets during the onset of the 2011 Atlantic cold tongue. Open Access Journal of Geophysical Research: Oceans, 119 . pp. 7882-7910. DOI 10.1002/2014JC010021.

[thumbnail of art_10.1007_s00382-014-2339-6.pdf]

Hummels, R., Dengler, M. , Brandt, P. and Schlundt, M. (2014) Diapycnal heat flux and mixed layer heat budget within the Atlantic Cold Tongue. Open Access Climate Dynamics, 43 (11). pp. 3179-3199. DOI 10.1007/s00382-014-2339-6.

[thumbnail of 1-s2.0-S0079661112001607-main.pdf] [thumbnail of 2013_Hummels_etal_Seasonal_variability_of_diapycnal_heat_flux_eq_Atlantic.pdf]

Hummels, R., Dengler, M. and Bourles, B. (2013) Seasonal and regional variability of upper ocean diapycnal heat flux in the Atlantic cold tongue. Progress in Oceanography, 111 . pp. 52-74. DOI 10.1016/j.pocean.2012.11.001.

[thumbnail of 2011_Wade_et_al_EGEE3_Mixing_Model_Study.pdf]

Wade, M., Caniaux, G., duPenhoat, Y., Dengler, M. , Giordani, H. and Hummels, R. (2011) A one-dimensional modeling study of the diurnal cycle in the equatorial Atlantic at the PIRATA buoys during the EGEE-3 campaign. Ocean Dynamics, 61 . pp. 1-20. DOI 10.1007/s10236-010-0337-8.

[thumbnail of 2009JC005772.pdf]

Rhein, M., Dengler, M. , Sültenfuß, J. , Hummels, R. , Hüttl-Kabus, S. and Bourles, B. (2010) Upwelling and associated heat flux in the equatorial Atlantic inferred from helium isotope disequilibrium. Open Access Journal of Geophysical Research: Oceans, 115 . C08021. DOI 10.1029/2009JC005772.

Book chapters

[thumbnail of Hummels2018_Chapter_IntroductionIntoPhysicalOceano.pdf]

Hummels, R. (2018) Introduction into Physical Oceanography. In: Handbook on Marine Environment Protection. , ed. by Solomon, M. and Markus, T.. Springer, Cham, Switzerland, pp. 3-35. ISBN 978-3-319-60156-4 DOI 10.1007/978-3-319-60156-4_1.

Presentations

[thumbnail of Vortrag]

Hummels, R. , Hans, A. C., Dengler, M. and Brandt, P. (2025) Variability of the Western Boundary Circulation and AMOC in the tropical Atlantic: Insights from in-situ observations. [Talk] In: Helmholtz Topic 2 Seminar. , 23.05.2025, online .

[thumbnail of EGU24-16835_presentation.pdf]

Schütte, F. , Hans, A. C., Schulz, M., Brandt, P. , Hummels, R. , Körtzinger, A. , Fiedler, B. , Fischer, T. , Hoving, H. J. T. and Hauss, H. (2024) Interdisciplinary Insights into the Island Mass Effect. Open Access [Talk] In: EGU General Assembly 2024. , 14.–19.04.2024, Vienna, Austria .

[thumbnail of Seminar_Recife_rhummels_2.pptx]

Hummels, R. , Brandt, P. and Dengler, M. (2023) MSM117: Circulation, flow-topography interaction and ecosystem impact. Open Access [Talk] In: VIII Seminar of the Bilateral Cooperation DOCEAN – GEOMAR. , 08.05.2023, Recife, Brazil .

[thumbnail of tracos_bremen.pptx]

Hummels, R. , Brandt, P. , Herrford, J., Tuchen, F. P. , Dengler, M. , Imbol Koungue, R. A. , Kopte, R., Araujo, M. and Veleda, D. (2023) Observations of the Boundary Currents and AMOC at 11°S. Open Access [Talk] In: Physical Oceanography Seminar. , 03.02.2023, Bremen, Germany .

[thumbnail of webinar_amoc_tt_tracos_web.pptx]

Hummels, R. , Brandt, P. , Herrford, J., Tuchen, F. P. , Dengler, M. , Imbol Koungue, R. A. , Kopte, R., Araujo, M. and Veleda, D. (2023) Observations of the Boundary Currents and AMOC at 11°S - the TRACOS array -. Open Access [Talk] In: AMOC Webinar Series 1. , 21.03.2023, Online .

[thumbnail of mooring_processing_toolbox_2023_2.pptx]

Hummels, R. , Hahn, J. and Karstensen, J. and GEOMAR Physical Oceanography Department (2023) Mooring Processing Toolbox. Open Access [Talk] In: Ocean Sites Meeting - Best Practices. , 09.11.2023, Online .


Hummels, R. (2022) Tropical Ocean Processes. [Talk] In: 11. SAB Meeting. , 05.-06.10.2022, Kiel, Germany .


Hummels, R. (2022) Turbulent mixing and its contribution to the mixed layer heat budget in the Tropical Atlantic. [Talk] In: Bornö Summer School 2022. , 31.07.2022, Bornoe, Sweden .


Hummels, R. , Dengler, M. , Rath, W. , Foltz, G. , Schütte, F., Fischer, T. and Brandt, P. (2021) Surface cooling caused by rare but intense near-inertial wave induced mixing in the tropical Atlantic. [Talk] In: Physical Oceanography Seminar, Bremen University. , 15.01.2021, online .

[thumbnail of EGU21-9777_presentation.pdf]

Hummels, R. , Dengler, M. , Rath, W. , Foltz, G. , Schütte, F., Fischer, T. and Brandt, P. (2021) Surface cooling caused by rare but intense near-inertial wave induced mixing in the tropical Atlantic. Open Access [Talk] In: EGU General Assembly 2021. , 19.-30.03.2021, Online .


Tuchen, F. P. , Brandt, P. , Lübbecke, J. F. and Hummels, R. (2021) Tropical pathways and water mass transformation of the Atlantic Ocean upper circulation. [Talk] In: PIRATA-24/TAV Meeting. , 10.-14.05.2021, Online .


Tuchen, F. P. , Lübbecke, J. F. , Brandt, P. , Fu, Y., Hummels, R. , Schmidtko, S. and Böning, C. W. (2021) The Atlantic Subtropical Cells - mean state and variability inferred from Argo float data. [Talk] In: German Argo User Meeting. , 18.02.2021, Online .


Tuchen, F. P. , Lübbecke, J. F. , Schmidtko, S. , Hummels, R., Böning, C. W. and Brandt, P. (2020) Mean state and seasonal to interannual variability of the Atlantic Subtropical Cells inferred from recent observations. [Talk] In: Ocean Sciences Meeting 2020. , 16.-21.02.2020, San Diego, USA .


Herrford, J., Hummels, R., Brandt, P. , Dengler, M. , Araujo, M. and Tchipalanga, P. C. M. (2019) Observing the Boundary Currents and AMOC Variability at 11°S. [Talk] In: AMOC Metrics Workshop. , 16.-20.09.2019, Honolulu, Hawaii .


Herrford, J., Hummels, R., Brandt, P. , Kanzow, T., Dengler, M. and Araujo, M. (2019) Observing the seasonal Variability of the AMOC & WBCs at 11°S. [Talk] In: EGU General Assembly 2019. , 07.-12.04.2019, Vienna, Austria .


Tuchen, F. P. , Lübbecke, J. F. , Schmidtko, S. , Hummels, R. and Böning, C. W. (2019) The Atlantic Subtropical Cells inferred from observations. [Talk] In: VII Seminar of the Bilateral Cooperation DOCEAN-GEOMAR. , 28.10.2019, Recife, Brazil .

[thumbnail of talk_preface_2018_fpt.pdf]

Tuchen, F. P. , Brandt, P. , Claus, M. and Hummels, R. (2018) Deep Intraseasonal Variability in the Central Equatorial Atlantic. Open Access [Talk] In: PREFACE International Conference & Final Assembly. , 17.-20.04.2018, Arrecife, Lanzarote, Spain .


Hahn, J. and Hummels, R. (2018) Aquadopp applications in physical oceanography at GEOMAR. [Invited talk] In: Nortek Seminar. , 18.06.2018, Rud (Oslo), Norway .


Herrford, J., Hummels, R., Kopte, R. and Brandt, P. (2018) Observing the Variability of Boundary Currents and the AMOC at 11°S. [Talk] In: Ocean Science Meeting 2018. , 12.-16.02.2018, Portland, OR, USA .


Hummels, R., Brandt, P. , Dengler, M. , Araujo, M. , Veleda, D. , Herrford, J. and Kopte, R. (2018) Variability of the Boundary Circulation Systems and AMOC at 11°S. [Talk] In: 6. Seminar of Bilateral Cooperation DOCEAN-GEOMAR 2018. , 15.03.2018, Recife, Brazil .


Hummels, R., Brandt, P. , Kopte, R., Herrford, J., Dengler, M. , Araujo, M. and Veleda, D. (2018) Observed variability of the tropical Atlantic Boundary Circulation Systems at 11°S. [Talk] In: 50. Liege Colloquium on Ocean Dynamics. , 28.05.-01.06.2018, Liege, Belgium .


Hummels, R., Dengler, M. , Brandt, P. , Rath, W., Foltz, G. R. , Schütte, F., Fischer, T. , Bourles, B. and Schlundt, M. (2018) Turbulent mixing and its contribution to the Mixed-Layer heat budget in the tropical Atlantic. [Talk] In: PIRATA 23 Meeting. , 22.10.-26.10.2018, Marseille, France .


Hummels, R., Herrford, J., Dengler, M. and Brandt, P. (2018) Variability of the Western Boundary Current System and AMOC at 11°S. [Talk] In: RACE Final Workshop. , 08.-09.11.2018, Bremen, Germay .

[thumbnail of Hummels-Rebecca-AMOC2017_2.pptx]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M., Veleda, D., Durgadoo, J. V. , Herrford, J. and Kopte, R. (2017) Variability of the Boundary Circulation Systems at 11°S. Open Access [Talk] In: USAMOC Science Meeting. , 23.-25.05.2017, Santa Fe, USA .

[thumbnail of 2016_03_30_RACE_Brandt_et_al.pptx]

Brandt, P. , Dengler, M. , Hummels, R. and Herrford, J. (2016) Causes of tropical Atlantic circulation variability. Open Access [Talk] In: RACE Statusseminar, MARUM. , 30.03.2016, Bremen, Germany .

[thumbnail of samoc_workshop_hummels_osm2016.pptx]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M., Kopte, R. , Herrford, J. and Tchipilanga, P. (2016) Observations at 11°S in the Atlantic. [Talk] In: SAMOC VI Workshop at Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .

[thumbnail of brazil_ufpe_hummels_2.pptx]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M. , Veleda, D. and Durgadoo, J. V. (2015) Interannual to decadal changes in the Western boundary circulation in the Atlantic at 11°S. [Talk] In: 4. Seminar of Bilateral Cooperation DOCEAN-GEOMAR 2015. , 14.10.2015, Recife, Brazil .

[thumbnail of brazil_ufpe_hummels_2.pptx]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M. , Veleda, D. and Durgadoo, J. V. (2015) Interannual to decadal changes in the Western boundary circulation in the Atlantic at 11°S. [Talk] In: RAPID-USAMOC International Science Meeting 2015. , 21.-24.07.2015, Bristol, UK .

[thumbnail of 2014_02_26_Dengler_etal.pdf]

Dengler, M. , Hummels, R., Brandt, P. , Fischer, T. and Krahmann, G. (2014) Upper ocean mixing observations during TACE: Mixing processes in the equatorial Atlantic vs. Pacific. [Talk] In: Ocean Sciences Meeting 2014. , 23.-28.02.2014, Honululu, Hawaii, USA .

[thumbnail of workshop_brazil_hummels.pptx]

Hummels, R., Brandt, P. , Dengler, M. and Fischer, J. (2014) Western boundary circulation in the tropical South Atlantic and its relation to Tropical Atlantic Variability. [Talk] In: Workshop Brazil-Germany Cooperation in Ocean Science and Technology: Research and Capacity Building. , 27.-28.05.2014, Fortaleza, Brazil .

[thumbnail of samoc_meeting_hummels_1.pptx]

Hummels, R., Brandt, P. , Dengler, M. and Fischer, J. (2014) Western boundary circulation in the tropical South Atlantic and its relation to Tropical Atlantic Variability. [Talk] In: SAMOC V Workshop. , 01.-05.12.2014, Buenos Aires, Argentinia .

[thumbnail of osm_2014.pptx]

Hummels, R., Dengler, M. , Brandt, P. and Schlundt, M. (2014) Mixed layer heat and freshwater budgets. [Talk] In: Ocean Science Meeting 2014. , 23.-28.02.2014, Honululu, Hawaii, USA .


Schlundt, M., Brandt, P. , Dengler, M. , Karstensen, J. , Bumke, K., Krahmann, G. , Fischer, T. and Hummels, R. (2014) Observations of mixed layer salinity in the equatorial Atlantic. [Talk] In: DFG FOR 1740 Annual Meeting. , 23.09.2014, Kiel, Germany .

[thumbnail of Dengler_2013_10_23_TAV_meeting.pdf]

Dengler, M. and Hummels, R. (2013) Diapycnal Mixing in the Equatorial Cold Tongue and its Parameterization. [Talk] In: Tropical Atlantic Variability Meeting / PIRATA-18 Meeting . , 22. - 25.10.2013, Venice, Italy .

[thumbnail of Dengler_2013_02_13_Link_Mixing_Assessing_validity_of_param.pdf]

Dengler, M. , Hummels, R. and Fischer, T. (2013) Assessing the quality of mixing parameterizations. [Talk] In: LINKing MIXing Workshop, ZMAW. , 13.-14.02.2013, Hamburg, Germany .

[thumbnail of 2012_Dengler_etal_TAV_Mixing_cold_tongue.pdf]

Dengler, M. , Brandt, P. , McPhaden, M. J. , Bourles, D. , Thomsen, S. , Krahmann, G. , Fischer, T. and Hummels, R. (2012) Upper ocean mixing processes and their impact on the mixed layer heat balance during the onset of the Atlantic Cold Tongue. [Talk] In: Tropical Atlantic Variability Meeting / PIRATA-17 Meeting . , 10.-15.09.2012, Kiel, Germany .

[thumbnail of tace_meeting.pptx]

Hummels, R., Dengler, M. and Bourles, B. (2012) About the contribution of the diapycnal heat flux to the heat budget of the mixed layer. [Talk] In: Tropical Atlantic Variability Meeting / PIRATA-17 Meeting . , 10.-15.09.2012, Kiel, Germany .


Hummels, R., Dengler, M. and Bourles, B. (2011) On the variability of diapycnal mixing in the eastern equatorial Atlantic. [Talk] In: EGU General Assembly 2011. , 03.-08.04.2011, Vienna, Austria .


Dengler, M. , Hummels, R. and Bourles, B. (2010) Upper ocean diapycnal heat flux and mixing processes in the central and eastern equatorial Atlantic. [Talk] In: Ocean Sciences Meeting 2010 "Oxygen Minimum Zones and Climate Change: Observations and Prediction IV". , 22.02.-26.02.2010, Portland, Oregon, USA .


Dengler, M. , Schafstall, J., Toole, J. , Banyte, D., Bourles, B. and Hummels, R. (2010) On the parameterization of mixing processes at the equator. [Talk] In: Tropical Atlantic and PIRATA-15 meeting. , 03.03.2010, Miami, USA .


Dengler, M. , Visbeck, M. , Tanhua, T. , Fischer, T. , Banyte, D., Hummels, R. and Wallace, D. W. R. (2010) Diapycnal mixing in the tropics: Results from the Guinea Dome Tracer Release Experiment. [Invited talk] In: Below the Rossby Radius: Workshop on small-scale variability in the general circulation of the atmosphere and oceans. , 17.09.2010, Tremsbüttel, Germany .


Rhein, M. , Dengler, M. , Sültenfuß, J. , Hummels, R. , Hüttl-Kabus, S. and Bourles, B. (2010) Upwelling and associated heat flux in the Equatorial Atlantic inferred from helium isotope disequilibrium. [Talk] In: EGU General Assembly 2010. Sessopm OS3. , 05.05.2010, Vienna, Austria .


Visbeck, M. , Tanhua, T. , Dengler, M. , Fischer, T. , Hummels, R. and Wallace, D. W. R. (2010) Surprisingly low diapycncal mixing in the tropical ocean's thermocline revealed by a tracer release experiment (GUTRE). [Talk] In: Ocean Sciences Meeting 2010 "Oxygen Minimum Zones and Climate Change: Observations and Prediction IV". , 22.02.-26.02.2010, Portland, Oregon, USA .

Conference posters

[thumbnail of Hans_etal_AMOCUncertainty11S_EGU25.pdf]

Hans, A. C., Hummels, R. , Brandt, P. , Juricke, S. and Schwarzkopf, F. U. (2025) Uncertainty evaluation of the AMOC transport calculation at 11°S. Open Access [Poster] In: EGU General Assembly 2025. , 27.04.2025-02.05.2025, Vienna, Austria / online . DOI 10.5194/egusphere-egu25-13885.

[thumbnail of PO_rhummels_11003_EGU25_WBCS.pdf]

Hummels, R. , Dengler, M. , Hans, A. C. and Brandt, P. (2025) Variability of the Western Boundary Circulation at 11°S. Open Access [Poster] In: EGU General Assembly 2025. , 27.04.2025-02.05.2025, Vienna, Austria / online .

[thumbnail of Hans_etal_EGU24_AMOC11S.pdf]

Hans, A. C., Hummels, R. , Brandt, P. and Koungue, R. A. I. (2024) Observed variability of AMOC transport components at 11°S. Open Access [Poster] In: EGU General Assembly 2024. , 14.–19.04.2024, Vienna, Austria .

[thumbnail of PO_rhummels_11003_TRACOS_A0.pdf]

Hummels, R. , Brandt, P. , Dengler, M. , Imbol Koungue, R. A. and Hans, A. C. (2023) Observations of the Boundary Currents and AMOC at 11°S - the TRACOS array. Open Access [Poster] In: IUGG General Assembly 2023. , 12.-20.07.2023, Berlin, Germany .

[thumbnail of PO_rhummels_11003_TRACOS_A0.pdf]

Hummels, R. , Brandt, P. , Dengler, M. , Imbol Koungue, R. A. and Hans, A. C. (2023) Observations of the Boundary Currents and AMOC at 11°S - the TRACOS array. Open Access [Poster] In: Helmholtz POF IV Topic 2 Seminar. , 05.-06.09.2023, Kiel, Germany .


Karstensen, J. , Brandt, P. , Dengler, M. and Hummels, R. and GEOMAR Physical Oceanography Department (2023) Detecting the ocean response to climate variability: Long-term observatories of RD1. [Poster] In: 12. SAB Meeting. , 21.-22.09.2023, Kiel, Germany .

[thumbnail of PTUE_P4-3_Tuchen_FP.pdf]

Tuchen, F. P. , Brandt, P. , Lübbecke, J. F. and Hummels, R. (2021) Mean characteristics of the tropical AMOC return flow from Argo and shipboard velocity observations. [Poster] In: TRIATLAS Web General Assembly. , 27.09.-01.10.2021, online .


Hummels, R. , Dengler, M. , Rath, W. , Foltz, G. R. , Schütte, F., Fischer, T. and Brandt, P. (2020) Surface cooling caused by rare but intense near-inertial wave induced mixing in the tropical Atlantic. [Poster] In: AGU Fall Meeting 2020. , 01.-17.12.2020, Online .

[thumbnail of PO_Herrford_OceanObs19.pdf]

Hummels, R., Brandt, P. , Herrford, J., Dengler, M. , Araujo, M. and Tchipalanga, P. C. M. (2019) Observing the Boundary Currents and AMOC Variability at 11°S. Open Access [Poster] In: OceanObs'19: An Ocean of Opportunity. , 16.-20.09.2019, Honolulu, Hawaii .

[thumbnail of EGU2018-19834.pdf]

Dengler, M. , Hummels, R. , Heukamp, F. , Fischer, T. , Krahmann, G. and Brandt, P. (2018) An elevated turbulent mixing event caused by a near-inertial wave in the mixed layer. Open Access [Poster] In: EGU General Assembly 2018. , 08.-13.04.2018, Vienna, Austria .

[thumbnail of FB1_PO_jherrford_RACE_Meeting_2018_Poster.pdf]

Herrford, J., Hummels, R., Dengler, M. and Brandt, P. (2018) The role of the tropical Atlantic for climate variability in the Atlantic region. Open Access [Poster] In: RACE Final Workshop. , 08.-09.11.2018, Bremen, Germay .

[thumbnail of FB1_PO_jherrford_RACE_Statusseminar_2017_Poster.pdf]

Brandt, P. , Dengler, M. , Hummels, R. and Herrford, J. (2017) Rolle des tropischen Atlantiks für Klimaschwankungen im Atlantischen Raum. Open Access [Poster] In: RACE Statusseminar, CEN. , 10.03.2017, Hamburg, Germany .

[thumbnail of FB1_PO_rhummels_RACE_I_2016.pdf]

Brandt, P. , Dengler, M. , Hummels, R. and Herrford, J. (2016) Rolle des tropischen Atlantiks für Klimaschwankungen im Atlantischen Raum. Open Access [Poster] In: RACE Statusseminar, MARUM. , 30.03.2016, Bremen, Germany .

[thumbnail of FB1_PO_rhummels_OSM_2016.pdf]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M. , Veleda, D. and Durgadoo, J. V. (2016) Interannual to decadal changes in the Western boundary circulation in the Atlantic at 11°S. [Poster] In: Ocean Sciences Meeting 2016. , 21.-26.02.2016, New Orleans, USA .

[thumbnail of FB1_PO_rhummels_TAV2016.pdf]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M. , Veleda, D. , Durgadoo, J. V. , Herrford, J. and Kopte, R. (2016) Variability of the Boundary Circulation Systems and AMOC at 11°S. Open Access [Poster] In: CLIVAR-PIRATA-PREFACE Tropical Atlantic Variability Conference. , 28.11.-01.12.2016, Paris, France .

[thumbnail of FB1_PO_rhummels_CLIVAR2016.pdf]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M., Veleda, D., Durgadoo, J. V. , Herrford, J. and Kopte, R. (2016) Atlantic Meridional Overturning Circulation: Variability of the Boundary Circulation Systems and AMOC at 11°S. Open Access [Poster] In: CLIVAR Open Science Conference 2016. , 18.-25.09.2016, Qingdao, China .

[thumbnail of FB1_PO_rhummels_EGU_2015.pdf]

Hummels, R., Brandt, P. , Dengler, M. , Fischer, J. , Araujo, M. and Veleda, D. (2015) Western boundary circulation in the tropical Atlantic at 11°S. [Poster] In: EGU General Assembly 2015. , 12.–17.04.2015 , Vienna, Austria .


Schlundt, M., Brandt, P. , Dengler, M. , Bumke, K., Krahmann, G. , Hummels, R., Fischer, T. and Karstensen, J. (2014) Mixed layer heat and salinity budget during the onset of the 2011 Atlantic cold tongue. [Poster] In: EGU General Assembly 2014. , 27.04.-03.05.2014, Vienna, Austria .

[thumbnail of poster_status_seminar.pptx]

Hummels, R., Brandt, P. , Dengler, M. and Fischer, J. (2014) Variability of the Western Boundary Current at 11°S off Brazil: First results from new observations. Open Access [Poster] In: RACE Statusseminar, Hamburg. , 06.10.2014, Hamburg, Germany .

[thumbnail of 2012_Dengler_etal_THOR_NA_Climate_Cycle_and_Heat_budget.pdf]

Dengler, M. , Brandt, P. , Funk, A., Hormann, V., Greatbatch, R. J. , Fischer, T. , Krahmann, G. , Hummels, R. and Toole, J. M. (2012) The 4.5-year climate cycle and the mixed layer heat budget in the tropical Atlantic. Open Access [Poster] In: International Joint conference EU THOR and BMBF North Atlantic projects. , 24.-26.09.2012, Hamburg, Germany .


Dengler, M. , Brandt, P. , McPhaden, M. J. , Thomsen, S. , Krahmann, G. , Fischer, T. , Freitag, P. and Hummels, R. (2012) Upper ocean mixing processes and their impact on the mixed layer heat balance during the onset of the Atlantic Cold Tongue. [Poster] In: EGU General Assembly 2012. , 22.-27.04.2012, Vienna, Austria .


Caniaux, G., Giordani, H., Wade, M., Dengler, M. and Hummels, R. (2010) Importance of diapycnal mixing for simulating the eastern equatorial Atlantic ocean. [Poster] In: EGU General Assembly 2010, Session AS1.17. , 03.05.2010, Vienna, Austria .

Conference pico


Tuchen, F. P. , Lübbecke, J. F. , Schmidtko, S. , Hummels, R. and Böning, C. W. (2019) Characteristics of the Atlantic Subtropical Cells inferred from observations. [PICO] In: EGU General Assembly 2019. , 07.-12.04.2019, Vienna, Austria .

Theses - not published by a publisher

[thumbnail of PhD_Hummels_2012.pdf]

Hummels, R. (2012) On the variability of turbulent mixing within the upper layers of the Atlantic Cold Tongue region. Open Access (PhD/ Doctoral thesis), Christian-Albrechts-Universität, Kiel, Germany, 155 pp.

[thumbnail of Dipl. 2007 Hummels, R.pdf]

Hummels, R. (2007) Temporal and spatial decorrelation scales in the North Atlantic Ocean . (Diploma thesis), Christian-Albrechts-Universität zu Kiel, Kiel, Germany, 74 pp.

Reports - Cruise Reports

[thumbnail of M207_Cruise_Report.pdf]

Hummels, R. , Ishimaru, A., Eduarada, M., Mulet-Benzo, C., Brunßen, Z., Damke, P., Engelmann, R., Gaenslen, H. T., Hans, A. C., Hayo, L., Henning, P., Johnsen, T., Kanngiesser, F. , Klopfer, M., Leuzinger, A., Lübbecke, J. F. , Menzel, D., Rohleder, C., Rudloff, D., Schulz, M., Skupin, A., Sousa Lima, T., Sudarchikova, N., Tuchen, F. P. , Waza, A. A. and Witt, R. (2025) Western boundary circulation, AMOC, Rain and Dust in the tropical Atlantic, Cruise No. M207, 04.01.2025 - 11.02.2025, Belém (Brazil) - Mindelo (Cape Verde). Open Access . Meteor-Berichte, M207 . Begutachterpanel Forschungsschiffe, Bonn, Germany, 53 pp. DOI 10.48433/cr_m207.

[thumbnail of awi_doi~10.2312_cr_msm60.pdf]

Karstensen, J. , Speich, S., Asdar, S., Berbel, G. B. B., Branlard, L., Carvalho, A., Chidichimo, M. P., Cotrim da Cunha, L., da Silva Calixto, A., Edsgren, C., Guerrero, R., Hummels, R., Jones, S., Kersale, M., Lebehot, A., Marshall, T., Mohale, N., Rogge, A., Sato, O. T., Schrandt, J., Stöven, T. and Sutti Otera, B. (2019) Seamount Observatory and SAMOC Overturning, Cruise No. MSM60, January 04 - February 01, 2017, Cape Town (South Africa) - Montevideo (Uruguay). . Maria S. Merian-Berichte, MSM60 . UNSPECIFIED, 46 pp.

[thumbnail of Cruise_Report_M62_2.pdf]

Brandt, P. , Affler, K., Maluf, V. C., Dengler, M. , Dispert, A., Dombrowsky, U., Ferreira, M., Fischer, J. , Funk, A., Hummels, R., Mahmud, N., Müller, M., Papenburg, U., Schafstall, J., Stramma, L. , Truscheit, T., Veleda, D., Weddige, P. and Zantopp, R. J. (2005) Circulation and Variability in the Tropical Atlantic METEOR Cruise No. 62, Leg 2 from Fortaleza, Brazil to Recife, Brazil August 8 to August 31, 2004. . Universität Bremen, Fachbereich Geowissenschaften, Bremen, Germany, 46 pp.

Reports - Weekly reports

[thumbnail of 1. Wochenbericht M207.pdf] [thumbnail of 1. Weekly Report M207.pdf]

Hummels, R. (2025) 1. Wochenbericht M207. Open Access . UNSPECIFIED, 2 pp.

[thumbnail of 2. Wochenbericht M207.pdf] [thumbnail of 2. Weekly Report M207.pdf]

Hummels, R. (2025) 2. Wochenbericht M207. Open Access . UNSPECIFIED, 3 pp.

[thumbnail of Wochenbericht_M207_3_deutsch.pdf] [thumbnail of Wochenbericht_M207_3_englisch.pdf]

Hummels, R. (2025) 3. Wochenbericht M207. Open Access . UNSPECIFIED, 4 pp.

[thumbnail of Wochenbericht_M207_4_englisch.pdf] [thumbnail of Wochenbericht_M207_4_deutsch.pdf]

Hummels, R. (2025) 4. Wochenbericht M207. Open Access . UNSPECIFIED, 4 pp.

[thumbnail of Wochenbericht_M207_5_deutsch.pdf] [thumbnail of Wochenbericht_M207_5_english.pdf]

Hummels, R. (2025) 5. Wochenbericht M207. Open Access . UNSPECIFIED, 4 pp.

[thumbnail of 6. Wochenbericht M207.pdf] [thumbnail of 6th Weekly Report M207.pdf]

Hummels, R. (2025) 6. Wochenbericht M207. Open Access . UNSPECIFIED, 5 pp.

[thumbnail of 4. Wochenbericht MSM117.pdf] [thumbnail of 4. Weekly Report MSM117.pdf]

Hummels, R. (2023) 4. Wochenbericht FS Maria S. Merian MSM117. Open Access . GEOMAR Helmholtz Zentrum für Ozeanforschung Kiel, 4 pp.

[thumbnail of MSM117_Wochenbericht_5_deutsch.pdf] [thumbnail of MSM117_Wochenbericht_5_english.pdf]

Hummels, R. (2023) 5. Wochenbericht FS Maria S. Merian MSM117. Open Access . GEOMAR Helmholtz Zentrum für Ozeanforschung Kiel, 3 pp.

[thumbnail of Wochenbericht_MSM-117-Nr. 1_de.pdf] [thumbnail of Wochenbericht_MSM-117-Nr. 1_en.pdf]

Hummels, R. (2023) 1. Wochenbericht FS Maria S. Merian MSM117. Open Access . GEOMAR Helmholtz Zentrum für Ozeanforschung Kiel, 3 pp.

[thumbnail of Wochenbericht_MSM-117-Nr. 2_de.pdf] [thumbnail of Wochenbericht_MSM-117-Nr. 2_en.pdf]

Hummels, R. (2023) 2. Wochenbericht FS Maria S. Merian MSM117. Open Access . GEOMAR Helmholtz Zentrum für Ozeanforschung Kiel, 4 pp.

[thumbnail of merian-117-wochenbericht-03.pdf] [thumbnail of merian117-weeklyreport-03.pdf]

Hummels, R. (2023) 3. Wochenbericht FS Maria S. Merian MSM117. Open Access . GEOMAR Helmholtz Zentrum für Ozeanforschung Kiel, 4 pp.

[thumbnail of Wochenbericht_3_M145.pdf] [thumbnail of Weekly_Report_3_M145.pdf]

Hummels, R. and Brandt, P. (2018) 3. Wochenbericht M145. Open Access . UNSPECIFIED, Kiel, Germany, 3 pp.

[thumbnail of Wochenbericht_4_M145.pdf] [thumbnail of Weekly_Report_4_M145.pdf]

Hummels, R. and Brandt, P. (2018) 4. Wochenbericht M145. Open Access . UNSPECIFIED, Kiel, Germany, 3 pp.

Reports - other reports

[thumbnail of kdm_dkk_broschuere_atlantikzirkulation.pdf]

Brandt, P. , Hummels, R. , Jochumsen, K., Kanzow, T., Karstensen, J. , Kieke, D., Köhl, A., Latif, M. , Rabe, B., Rhein, M., Stammer, D. and Visbeck, M. and Deutsches Klima-Konsortium (DKK), Konsortium Deutsche Meeresforschung (KDM) (2021) Die Vermessung der Atlantikzirkulation. Open Access . Deutsches Klima-Konsortium e. V. (DKK), Berlin, Germany, 36 pp.

Interview/Performance on television, radio, blog


Hummels, R. (2025) Interview für das Deutsche Schifffahrtsmuseum für die Ausstellung zur Deutschen Atlantischen Expedition 1925. Deutsches Schifffahrtsmuseum, 09.05.2025. [Interview/Performance on television, radio, blog]

Dataset

This list was generated on Thu Dec 4 13:18:21 2025 CET.