Articles | Volume 21, issue 6
https://doi.org/10.5194/os-21-2787-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/os-21-2787-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Nov 2025
Research article |
| 05 Nov 2025
| 05 Nov 2025
Atmospheric cold pools abruptly reverse thermohaline features in the ocean skin layer
Center of Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
Samuel M. Ayim
Center of Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
Leonie Jaeger
Center of Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
Jens Meyerjürgens
Center of Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
Mariana Ribas-Ribas
Center of Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
Oliver Wurl
Center of Marine Sensors, Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Wilhelmshaven, Germany
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Cited articles
Allen, M. R. and Ingram, W. J.: Constraints on future changes in climate and the hydrologic cycle, Nature, 419, 224–232, https://doi.org/10.1038/nature01092, 2002.
Asher, W. E., Jessup, A. T., Branch, R., and Clark, D.: Observations of rain-induced near-surface salinity anomalies, J. Geophys. Res. Oceans, 119, 5483-5500, https://doi.org/10.1002/2014jc009954, 2014.
Ashton, I. G., Shutler, J. D., Land, P. E., Woolf, D. K., and Quartly, G. D.: A sensitivity analysis of the impact of rain on regional and global sea-air fluxes of CO2, PloS one, 11, https://doi.org/10.1371/journal.pone.0161105, 2016.
Börner, R., Haerter, J. O., and Fiévet, R.: DiuSST: a conceptual model of diurnal warm layers for idealized atmospheric simulations with interactive sea surface temperature, Geosci. Model Dev., 18, 1333–1356, https://doi.org/10.5194/gmd-18-1333-2025, 2025.
Boutin, J., Martin, N., Reverdin, G., Morisset, S., Yin, X., Centurioni, L., and Reul, N.: Sea surface salinity under rain cells: SMOS satellite and in situ drifters observations, J. Geophys. Res. Oceans, 119, 5533–5545, 2014.
Brilouet, P. E., Bouniol, D., Couvreux, F., Ayet, A., Granero-Belinchon, C., Lothon, M., and Mouche, A.: Trade wind boundary layer turbulence and shallow precipitating convection: New insights combining SAR images, satellite brightness temperature, and airborne in situ measurements, Geophys. Res. Lett., 50, e2022GL102180, https://doi.org/10.1029/2022GL102180, 2023.
Cayan, D. R.: Latent and sensible heat flux anomalies over the northern oceans: Driving the sea surface temperature, J. Phys. Oceanogr., 22, 859–881, https://doi.org/10.1175/1520-0485(1992)022<0859:lashfa>2.0.co;2, 1992.
Chou, S.-H., Zhao, W., and Chou, M.-D.: Surface heat budgets and sea surface temperature in the Pacific warm pool during TOGA COARE, Journal of Climate, 13, 634–649, https://doi.org/10.1175/1520-0442(2000)013<0634:shbass>2.0.co;2, 2000.
de Szoeke, S. P., Skyllingstad, E. D., Zuidema, P., and Chandra, A. S.: Cold pools and their influence on the tropical marine boundary layer, J. Atmos. Sci., 74, 1149–1168, 2017.
Donlon, C. J., Nightingale, T. J., Sheasby, T., Turner, J., Robinson, I. S., and Emergy, W. J.: Implications of the oceanic thermal skin temperature deviation at high wind speed, Geophys. Res. Lett., 26, 2505–2508, https://doi.org/10.1029/1999gl900547, 1999.
Durack, P. J.: Ocean salinity and the global water cycle, Oceanography, 28, 20–31, https://doi.org/10.5670/oceanog.2015.03, 2015.
Edson, J. B., Jampana, V., Weller, R. A., Bigorre, S. P., Plueddemann, A. J., Fairall, C. W., Miller, S. D., Mahrt, L., Vickers, D., and Hersbach, H.: On the exchange of momentum over the open ocean, J. Phys. Oceanogr., 43, 1589–1610, 2013.
Fairall, C. W., Bradley, E. F., Hare, J. E., Grachev, A. A., and Edson, J. B.: Bulk parameterization of air–sea fluxes: Updates and verification for the COARE algorithm, 16, 571-591, https://doi.org/10.1175/1520-0442(2003)016<0571:bpoasf>2.0.co;2, 2003.
Fairall, C. W., Bradley, E. F., Rogers, D. P., Edson, J. B., and Young, G. S.: Bulk parameterization of air-sea fluxes for tropical ocean-global atmosphere coupled-ocean atmosphere response experiment, J. Geophys. Res.-Oceans, 101, 3747–3764, https://doi.org/10.1029/95jc03205, 1996a.
Fairall, C. W., Bradley, E. F., Rogers, D. P., Edson, J. B., and Young, G. S.: Bulk parameterization of air-sea fluxes for tropical ocean-global atmosphere coupled-ocean atmosphere response experiment, J. Geophys. Res.-Oceans, 101, 3747–3764, https://doi.org/10.1029/95jc03205, 1996b.
Fairall, C. W., Bradley, E. F., Godfrey, J. S., Wick, G. A., Edson, J. B., and Young, G. S.: Cool-skin and warm-layer effects on sea surface temperature, J. Geophys. Res.-Oceans, 101, 1295–1308, https://doi.org/10.1029/95jc03190, 1996c.
Folland, C. K. and Parker, D. E.: Observed variations of sea surface temperature, https://doi.org/10.1007/978-94-009-2093-4_2, 1990.
Francis, J. and Skific, N.: Evidence linking rapid Arctic warming to mid-latitude weather patterns, Philos. Trans. R. Soc. A: Math. Phys. Eng. Sci., 373, 20140170, https://doi.org/10.1098/rsta.2014.0170, 2015.
Gassen, L., Badewien, T. H., Ewald, J., Ribas-Ribas, M., and Wurl, O.: Temperature and Salinity Anomalies in the Sea Surface Microlayer of the South Pacific during Precipitation Events, J. Geophys. Res.-Oceans, e2023JC019638, https://doi.org/10.1029/2023jc019638, 2023.
Gassen, L., Ayim, S. M., Badewien, T. H., Ribas-Ribas, M., and Wurl, O.: Wind speed effects on rainfall-induced salinity and temperature anomalies at the sea surface microlayer at mid-latitudes, Elem. Sci. Anth., 12, 00004, https://doi.org/10.1525/elementa.2024.00004, 2024a.
Gassen, L., Ayim, S. M., Emig, S., Holthusen, L. A., Jaeger, L., Lagemann, M., Lehners, C., Ribas-Ribas, M., and Wurl, O.: High-resolution measurements of essential climate variables in the North Sea from the autonomous surface vehicle HALOBATES during RV Heincke cruise HE609, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.968800, 2024b.
Gassen, L., Ayim, S. M., Riaz, B., Edgar, C., Holthusen, L. A., Jaeger, L., Lehners, C., Ribas-Ribas, M., and Wurl, O.: High-Resolution Measurements of Essential Climate Variables in the Harbor of Bremerhaven from the Autonomous Surface Vehicle HALOBATES during RV Heincke Cruise HE614, PANGAEA [data set], https://doi.org/10.1594/PANGAEA.974851, 2025.
Gentemann, C. L., Donlon, C. J., Stuart-Menteth, A., and Wentz, F. J.: Diurnal signals in satellite sea surface temperature measurements, Geophys. Res. Lett., 30, https://doi.org/10.1029/2002gl016291, 2003.
Gill, A. E. and Niller, P. P.: The theory of the seasonal variability in the ocean, Deep Sea Research and Oceanographic Abstracts, 141–177, https://doi.org/10.1016/0011-7471(73)90049-1, 1973.
Gosnell, R., Fairall, C. W., and Webster, P. J.: The sensible heat of rainfall in the tropical ocean, J. Geophys. Res. Oceans, 100, 18437–18442, https://doi.org/10.1029/95jc01833, 1995.
Ho, D. T., Zappa, C. J., McGillis, W. R., Bliven, L. F., Ward, B., Dacey, J. W. H., Schlosser, P., and Hendricks, M. B.: Influence of rain on air-sea gas exchange: Lessons from a model ocean, J. Geophys. Res. Oceans, 109, https://doi.org/10.1029/2003JC001806, 2004.
Jessup, A. T., Zappa, C. J., Loewen, M. R., and Hesany, V.: Infrared remote sensing of breaking waves, Nature, 385, 52–55, https://doi.org/10.1038/385052a0, 1997.
Katsaros, K. B.: The aqueous thermal boundary layer, Bound.-Layer Meteorol., 18, 107–127, https://doi.org/10.1007/bf00117914, 1980.
Katsaros, K. B. and Buettner, K. J. K.: Influence of rainfall on temperature and salinity of the ocean surface, J. Appl. Meteorol. Climatol., 15–18, https://doi.org/10.1175/1520-0450(1969)008<0015:iorota>2.0.co;2, 1969.
Kirsch, B., Ament, F., and Hohenegger, C.: Convective cold pools in long-term boundary layer mast observations, Mon. Weather Rev., 149, 811–820, 2021.
Leibovich, S.: The form and dynamics of Langmuir circulations, Annu. Rev. Fluid Mech., 15, 391–427, https://doi.org/10.1146/annurev.fl.15.010183.002135, 1983.
Liepert, B. G. and Kukla, G. J.: Decline in global solar radiation with increased horizontal visibility in Germany between 1964 and 1990, J. Clim., 10, 2391–2401, 1997.
Liss, P. S. and Duce, R. A.: The sea surface and global change, https://doi.org/10.1017/CBO9780511525025, 1997.
Liss, P. S., Watson, A. J., Bock, E. J., Jähne, B., Asher, W., Frew, N., Hasse, L., Korenowski, G., Merlivat, L., Phillips, L., and others: Report group 1-physical processes in the microlayer and the air-sea exchange of trace gases, 1–33, https://doi.org/10.1017/cbo9780511525025.002, 1997.
McDougall, T. J. and Barker, P. M.: Getting started with TEOS-10 and the Gibbs Seawater (GSW) oceanographic toolbox, 127, 1–28, 2011.
Minnett, P. J.: Radiometric measurements of the sea-surface skin temperature: The competing roles of the diurnal thermocline and the cool skin, Int. J. Remote Sens., 24, 5033–5047, https://doi.org/10.1080/0143116031000095880, 2003.
Moulin, A. J., Moum, J. N., Shroyer, E. L., and Hoecker‐Martínez, M.: Freshwater lens fronts propagating as buoyant gravity currents in the equatorial Indian Ocean, J. Geophys. Res. Oceans, 126, e2021JC017186, https://doi.org/10.1029/2021jc017186, 2021.
Murray, M. J., Allen, M. R., Merchant, C. J., Harris, A. R., and Donlon, C. J.: Direct observations of skin-bulk SST variability, Geophys. Res. Lett., 27, 1171–1174, https://doi.org/10.1029/1999gl011133, 2000.
Parc, L., Bellenger, H., Bopp, L., Perrot, X., and Ho, D. T.: Global ocean carbon uptake enhanced by rainfall, Nat. Geosci., 17, 851–857, 2024.
Phan, C. M.: Stability of a floating water droplet on an oil surface, Langmuir, 30, 768–773, https://doi.org/10.1021/la403830k, 2014.
Phan, C. M., Allen, B., Peters, L. B., Le, T. N., and Tade, M. O.: Can water float on oil?, Langmuir, 28, 4609–4613, https://doi.org/10.1021/la204820a, 2012.
Price, J. F., Weller, R. A., and Pinkel, R.: Diurnal cycling: Observations and models of the upper ocean response to diurnal heating, cooling, and wind mixing, J. Geophys. Res.-Oceans, 91, 8411–8427, https://doi.org/10.1029/jc091ic07p08411, 1986.
Qiao, F., Yuan, Y., Deng, J., Dai, D., and Song, Z.: Wave–turbulence interaction-induced vertical mixing and its effects in ocean and climate models, Philos. Trans. R. Soc. A: Math. Phys. Eng. Sci., 374, 20150201, https://doi.org/10.1098/rsta.2015.0201, 2016.
Renfrew, I. A., Moore, G. K., Guest, P. S., and Bumke, K.: A comparison of surface layer and surface turbulent flux observations over the Labrador Sea with ECMWF analyses and NCEP reanalyses, J. Phys. Oceanogr., 32, 383–400, https://doi.org/10.1175/1520-0485(2002)032<0383:acosla>2.0.co;2, 2002.
Ribas-Ribas, M., Hamizah Mustaffa, N. I., Rahlff, J., Stolle, C., and Wurl, O.: Sea Surface Scanner (S3): A Catamaran for High-Resolution Measurements of Biogeochemical Properties of the Sea Surface Microlayer, J. Atmos. Oceanic Technol., 34, 1433–1448, https://doi.org/10.1175/jtech-d-17-0017.1, 2017.
Schlemmer, L. and Hohenegger, C.: The formation of wider and deeper clouds as a result of cold-pool dynamics, J. Atmos. Sci., 71, 2842–2858, 2014.
Schlüssel, P., Emery, W. J., Grassl, H., and Mammen, T.: On the bulk-skin temperature difference and its impact on satellite remote sensing of sea surface temperature, J. Geophys. Res.-Oceans, 95, 13341-13356, https://doi.org/10.1029/jc095ic08p13341, 1990.
Schlüssel, P., Soloviev, A. V., and Emery, W. J.: Cool and freshwater skin of the ocean during rainfall, Bound.-Layer Meteorol., 82, 439–474, https://doi.org/10.1023/a:1000225700380, 1997.
Shinki, M., Wendeberg, M., Vagle, S., Cullen, J. T., and Hore, D. K.: Characterization of adsorbed microlayer thickness on an oceanic glass plate sampler, Limnol. Oceanogr. Methods, 10, 728–735, https://doi.org/10.4319/lom.2012.10.728, 2012.
Singh, P. and Joseph, D. D.: Fluid dynamics of floating particles, J. Fluid Mech., 530, 31–80, https://doi.org/10.1017/s0022112005003575, 2005.
Soloviev, A. V., Lukas, R., Donelan, M. A., Haus, B. K., and Ginis, I.: The air-sea interface and surface stress under tropical cyclones, Sci. Rep., 4, 5306, https://doi.org/10.1038/srep05306, 2014.
Sura, P., Newman, M., and Alexander, M. A.: Daily to decadal sea surface temperature variability driven by state-dependent stochastic heat fluxes, J. Phys. Oceanogr., 36, 1940–1958, https://doi.org/10.1175/jpo2948.1, 2006.
Ten Doeschate, A., Sutherland, G., Bellenger, H., Landwehr, S., Esters, L., and Ward, B.: Upper ocean response to rain observed from a vertical profiler, J. Geophys. Res. Oceans, 124, 3664–3681, https://doi.org/10.1029/2018JC014060, 2019.
Ummenhofer, C. C. and Meehl, G. A.: Extreme weather and climate events with ecological relevance: a review, Philos. Trans. R. Soc. Lond. B Biol. Sci., 372, 20160135, https://doi.org/10.1098/rstb.2016.0135, 2017.
Vickers, D. and Mahrt, L.: Evaluation of the air-sea bulk formula and sea-surface temperature variability from observations, J. Geophys. Res. Oceans, 111, https://doi.org/10.1029/2005JC003323, 2006.
Watson, A. J., Schuster, U., Shutler, J. D., Holding, T., Ashton, I. G. C., Landschützer, P., Woolf, D. K., and Goddijn-Murphy, L.: Revised estimates of ocean-atmosphere CO2 flux are consistent with ocean carbon inventory, Nat. Commun., 11, 4422, https://doi.org/10.1038/s41467-020-18203-3, 2020.
Webster, P. J., Clayson, C. A., and Curry, J. A.: Clouds, radiation, and the diurnal cycle of sea surface temperature in the tropical western Pacific, J. Clim., 9.8, 1712–1730, https://doi.org/10.1175/1520-0442(1996)009<1712:CRATDC>2.0.CO;2, 1996.
Williams, E. and Stanfill, S.: The physical origin of the land-ocean contrast in lightning activity, Compt. Rendus Phys., 3, 1277–1292, https://doi.org/10.1016/s1631-0705(02)01407-x, 2002.
Wurl, O., Miller, L., Röttgers, R., and Vagle, S.: The distribution and fate of surface-active substances in the sea-surface microlayer and water column, Mar. Chem., 115, 1–9, https://doi.org/10.1016/j.marchem.2009.04.007, 2009.
Wurl, O., Wurl, E., Miller, L., Johnson, K., and Vagle, S.: Formation and global distribution of sea-surface microlayers, Biogeosciences, 8, 121–135, https://doi.org/10.5194/bg-8-121-2011, 2011.
Wurl, O., Landing, W. M., Mustaffa, N. I. H., Ribas-Ribas, M., Witte, C. R., and Zappa, C. J.: The ocean's skin layer in the tropics, J. Geophys. Res. Oceans, 124, 59–74, https://doi.org/10.1029/2018jc014021, 2019.
Wurl, O., Gassen, L., Badewien, T. H., Braun, A., Emig, S., Holthusen, L. A., Lehners, C., Meyerjürgens, J., and Ribas, M. R.: HALOBATES: An Autonomous Surface Vehicle for High-Resolution Mapping of the Sea Surface Microlayer and Near-Surface Layer on Essential Climate Variables, J. Atmos. Oceanic Technol., 41, 1197–1211, https://doi.org/10.1175/jtech-d-24-0021.1, 2024.
Yokoi, S., Katsumata, M., and Yoneyama, K.: Variability in surface meteorology and air‐sea fluxes due to cumulus convective systems observed during CINDY/DYNAMO. J. Geophys. Res. Atmos., 119, 2064–2078, https://doi.org/10.1002/2013jd020621, 2014.
Yu, L.: Global variations in oceanic evaporation (1958-2005): The role of the changing wind speed, J. Clim., 20, 5376–5390, https://doi.org/10.1175/2007jcli1714.1, 2007.
Zappa, C. J., Jessup, A. T., and Yeh, H.: Skin layer recovery of free-surface wakes: Relationship to surface renewal and dependence on heat flux and background turbulence, J. Geophys. Res.-Oceans, 103, 21711–21722, https://doi.org/10.1029/98jc01942, 1998.
Zuidema, P., Torri, G., Muller, C., and Chandra, A.: A survey of precipitation-induced atmospheric cold pools over oceans and their interactions with the larger-scale environment, Surv. Geophys., 38, 1283–1305, 2017.
Short summary
This study investigates how abrupt weather changes, such as shifts in air temperature, wind speed and precipitation, impact temperature and salinity in the ocean’s skin layer (upper first millimetre). Two events in the harbour of Bremerhaven and one event in the North Sea revealed that the skin layer reacts instantly, with greater temperature changes than those at a depth of 100 cm, underscoring its key role in air-sea interactions and climate dynamics.
This study investigates how abrupt weather changes, such as shifts in air temperature, wind...
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