References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-12-11679-2012

Temporal evolution of stable water isotopologues in cloud droplets in a hill cap cloud in central Europe (HCCT-2010)

Spiegel

J. K.

¹ Aemisegger

² Scholl

³ Wienhold

F. G.

² Collett Jr.

J. L.

⁴ Lee

⁴ van Pinxteren

⁵ Mertes

⁵ Tilgner

⁵ Herrmann

⁵ Werner

R. A.

¹ Buchmann

¹ Eugster

Institute of Agricultural Sciences, ETH Zurich, Zurich, Switzerland

Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland

US Geological Survey, Reston, VA, USA

Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado, USA

Leibniz Institute for Tropospheric Research, Leipzig, Germany

06 12 2012

12 23 11679 11694

This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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In this work, we present the first study resolving the temporal evolution of δ2H and δ18O values in cloud droplets during 13 different cloud events. The cloud events were probed on a 937 m high mountain chain in Germany in the framework of the Hill Cap Cloud Thuringia 2010 campaign (HCCT-2010) in September and October 2010. The δ values of cloud droplets ranged from −77&permil; to −15‰ (δ2H) and from −12.1‰ to −3.9‰ (δ18O) over the whole campaign. The cloud water line of the measured δ values was δ2H=7.8×δ18O+13×10−3, which is of similar slope, but with higher deuterium excess than other Central European Meteoric Water Lines. Decreasing δ values in the course of the campaign agree with seasonal trends observed in rain in central Europe. The deuterium excess was higher in clouds developing after recent precipitation revealing episodes of regional moisture recycling. The variations in δ values during one cloud event could either result from changes in meteorological conditions during condensation or from variations in the δ values of the water vapor feeding the cloud. To test which of both aspects dominated during the investigated cloud events, we modeled the variation in δ values in cloud water using a closed box model. We could show that the variation in δ values of two cloud events was mainly due to changes in local temperature conditions. For the other eleven cloud events, the variation was most likely caused by changes in the isotopic composition of the advected and entrained vapor. Frontal passages during two of the latter cloud events led to the strongest temporal changes in both δ2H (≈ 6&permil; per hour) and δ18O (≈ 0.6&permil; per hour). Moreover, a detailed trajectory analysis for the two longest cloud events revealed that variations in the entrained vapor were most likely related to rain out or changes in relative humidity and temperature at the moisture source region or both. This study illustrates the sensitivity of stable isotope composition of cloud water to changes in large scale air mass properties and regional recycling of moisture.

References 1

Araguas-Araguas, L., Danesi, P., Froehlich, K., and Rozanski, K.: Global monitoring of the isotopic composition of precipitation, J. Radioanal. Nucl. Chem., 205, 189–200, 1996.

Arends, B G., Kos, G. P A., Maser, R., Schell, D., Wobrock, W., Winkler, P., Ogren, J A., Noone, K J., Hallberg, A., Svenningsson, I B., Wiedensohler, A., Hansson, H C., Berner, A., Solly, I., and Kruisz, C.: Microphysics of clouds at Kleiner Feldberg, J. Atmos. Chem., 19, 59–85, http://dx.doi.org/10.1007/BF00696583doi:10.1007/BF00696583, 1994.

Cappa, C D., Hendricks, M B., DePaolo, D J., and Cohen, R C.: Isotopic fractionation of water during evaporation, J. Geophys. Res., 108, 4525, http://dx.doi.org/10.1029/2003JD003597doi:10.1029/2003JD003597, 2003.

Coplen, T.: Guidelines and recommended terms for expression of stable-isotope-ratio and gas-ratio measurement results, Rapid Commun. Mass Spectrom., 25, 2538–2560, http://dx.doi.org/10.1002/rcm.5129doi:10.1002/rcm.5129, 2011.

Corbin, J D., Thomsen, M A., Dawson, T E., and D'Antonio, C M.: Summer water use by California coastal prairie grasses: fog, drought, and community composition, Oecologia, 145, 511–21, http://dx.doi.org/10.1007/s00442-005-0152-ydoi:10.1007/s00442-005-0152-y, 2005.

Craig, H.: Isotopic variations in meteoric waters, Science, 133, 1702, 1961.

Craig, H. and Gordon, L.: Deuterium and Oxygen-18 Variations in the Ocean and Marine Atmosphere, in: Stable Isotopes in Oceanic Studies and Paleotemperatures, edited by: Tongiorgi, E., 9–130, Consiglio Nazionale delle Richerche, Pisa, Italy, 1965.

Criss, R E.: Principles of Stable Isotope Distribution, Oxford University Press, Oxford, 1999.

Cui, J., An, S., Wang, Z., Fang, C., Liu, Y., Yang, H., Xu, Z. and Liu, S. Using deuterium excess to determine the sources of high-altitude precipitation: Implications in hydrological relations between sub-alpine forests and alpine meadows, J. Hydrol., 373, 24–33, 2009.

Dansgaard, W.: Stable isotopes in precipitation, Tellus, 16, 436–468, 1964.

Dansgaard, W., Johnsen, S., Clausen, H., Dahl-Jensen, D., Gundestrup, N., Hammer, C., Hvidberg, C., Steffensen, J., Sveinbjörnsdottir, A., Jouzel, J., and Bond, G.: Evidence for general instability of past climate from a 250-kyr ice-core record, Nature, 364, 218–220, 1993.

Dawson, T E.: Fog in the California redwood forest: ecosystem inputs and use by plants, Oecologia, 117, 476–485, doi:10.1007/s004420050683, 1998.

Demoz, B., Collett Jr., J L., and Daube Jr., B.: On the Caltech active strand cloudwater collectors, Atmos. Res., 41, 47–62, doi:10.1016/0169-8095(95)00044-5, 1996.

Draxler, R.: Evaluation of an ensemble dispersion calculation, J. Appl. Meteor., 42, 308–317, 2003.

Draxler, R. and Hess, G.: Description of the HYSPLIT4 modeling system. NOAA Tech. Memo. ERL ARL-224, Tech. Rep. August 2002, Air Resources Laboratory Silver Spring, Maryland, USA, 1997.

Draxler, R. and Hess, G.: An overview of the HYSPLIT_4 modelling system for trajectories, dispersion, and deposition, Aust. Meteor. Mag., 47, 295–308, 1998.

Facy, L., Merlivat, L., Nief, G., and Roth, R.: The study of formation of hailstones by isotopic analysis, J. Geophys. Res., 68, 3841–3848, 1963.

Farquhar, G D., Cernusak, L A., and Barnes, B.: Heavy water fractionation during transpiration., Plant Physiol., 143, 11–18, http://dx.doi.org/10.1104/pp.106.093278doi:10.1104/pp.106.093278, 2007.

Feild, T S. and Dawson, T E.: Water sources used by \textitDidymopanax pittieri at different life stages in a tropical cloud forest, Ecology, 79, 1448, http://dx.doi.org/10.2307/176756doi:10.2307/176756, 1998.

Fischer, D T. and Still, C J.: Evaluating patterns of fog water deposition and isotopic composition on the California Channel Islands, Water Resour. Res., 43, W04420, http://dx.doi.org/10.1029/2006WR005124doi:10.1029/2006WR005124, 2007.

Froehlich, K., Kralik, M., Papesch, W., Scheifinger, H., and Stichler, W.: Deuterium excess in precipitation of Alpine regions –- moisture recycling, Isot. Environ. Health Stud., 44, 61–70, 2008.

Gat, J R. and Matsui, E.:Atmospheric water balance in the Amazon Basin: An isotopic evapotranspiration model, J. Geophys. Res., 96, 13179–13188, 1991.

Gat, J R.: Oxygen and hydrogen isotopes in the hydrologic cycle, Annu. Rev. Earth Planet. Sci., 24, 225–262, http://dx.doi.org/10.1146/annurev.earth.24.1.225doi:10.1146/annurev.earth.24.1.225, 1996.

Gat, J R.: Atmospheric water balance - the isotopic perspective, Hydrol. Process., 14, 1357–1369, http://dx.doi.org/10.1002/1099-1085(20000615)14:8<1357::AID-HYP986>3.0.CO;2-7doi:10.1002/1099-1085(20000615)14:8<1357::AID-HYP986>3.0.CO;2-7, 2000.

Gat, J R., Klein, B., Kushnir, Y., Roether, W., Wernli, H., Yam, R., and Shemesh, A.: Isotope composition of air moisture over the Mediterranean Sea: an index of the air-sea interaction pattern, Tellus B, 55, 953–965, http://dx.doi.org/10.1034/j.1600-0889.2003.00081.xdoi:10.1034/j.1600-0889.2003.00081.x, 2003.

Gedzelman, S.: Deuterium in water vapor above the atmospheric boundary layer, Tellus, 40B, 134–147, 1988.

Gehre, M., Geilmann, H., Richter, J., Werner, R., and Brand, W.: Continuous flow 2H/$^1$H and $^18$O/$^16$ O analysis of water samples with dual inlet precision, Rapid Commun. Mass Spectrom., 18, 2650–2660, 2004.

Gerber, H.: Direct measurement of suspended particulate volume concentration and far-infrared extinction coefficient with a laser-diffraction instrument, Appl. Opt., 30, 4824–4831, 1991.

Heinold, B., Tilgner, A., Jaeschke, W., Haunold, W., Knoth, O., Wolke, R., and Herrmann, H.: Meteorological characterisation of the FEBUKO hill cap cloud experiments, Part II: Tracer experiments and flow characterisation with nested non-hydrostatic atmospheric models, Atmos. Environ., 39, 4195–4207, http://dx.doi.org/10.1016/j.atmosenv.2005.02.036doi:10.1016/j.atmosenv.2005.02.036, 2005.

Henderson-Sellers, A., McGuffie, K. and Zhang, H. Stable isotopes as tools for global climate modle predictions of the impact of Amazonian deforestation, J. Clim., 15, 2664–2677, 2002.

Herrmann, H., Wolke, R., Müller, K., Brüggemann, E., Gnauk, T., Barzaghi, P., Mertes, S., Lehmann, K., Massling, A., and Birmili, W.: FEBUKO and MODMEP: Field measurements and modelling of aerosol and cloud multiphase processes, Atmos. Environ., 39, 4169–4183, http://dx.doi.org/10.1016/j.atmosenv.2005.02.004doi:10.1016/j.atmosenv.2005.02.004, 2005.

Horita, J. and Wesolowski, D.: Liquid-vapor fractionation of oxygen and hydrogen isotopes of water from the freezing to the critical temperature, Geochim. Cosmochim. Acta, 58, 3425–3437, http://dx.doi.org/10.1016/0016-7037(94)90096-5doi:10.1016/0016-7037(94)90096-5, 1994.

Hurni, L., editor: Atlas of Switzerland, Version 3, Swisstopo, Wabern-Bern, www.atlasofswitzerland.ch, 2010.

IAEA: Reference Sheet for VSMOW2 and SLAP2 international measurement standards. Issued 2009-02-13, International Atomic Energy Agency, Vienna, 5 pp., http://curem.iaea.org/catalogue/SI/pdf/VSMOW2_SLAP2.pdf, 2009.

Ingraham, N L. and Mark, A F.: Isotopic assessment of the hydrologic importance of fog deposition on tall snow tussock grass on southern New Zealand uplands, Austral Ecology, 25, 402–408, http://dx.doi.org/10.1046/j.1442-9993.2000.01052.xdoi:10.1046/j.1442-9993.2000.01052.x, 2000.

Ingraham, N L. and Matthews, R A.: Fog drip as a source of groundwater recharge in northern Kenya, Water Resour. Res., 24, 1406, http://dx.doi.org/10.1029/WR024i008p01406doi:10.1029/WR024i008p01406, 1988.

Jacob, H. and Sonntag, C.: A 8-year record of the seasonal variation of 2H and $^18$O in atmospheric water vapour and precipitation at Heidelberg, Germany, Tellus B, 43, 291–300, 1991.

Jouzel, J.: Teneur isotopique de la vapeur d'eau atmosphérique. Mise au point d'un système embarquable, J. Rech. Atmos., 13, 261–269, 1979.

Jouzel, J.: Isotopes in Clouds Physics: Multiphase and Multistage Condensation Processes, in: Handbook of Environmental Isotope Geochemistry, Volume 2, The Terrestrial Environment, B, edited by: Fritz, P. and Fontes, J., chap 2, pp. 61–112, Elsevier Science Publischer B.V, Amsterdam, The Netherlands, 1986.

Jouzel, J., Masson-Delmotte, V., Cattani, O., Dreyfus, G., Falourd, S., Hoffmann, G., Minster, B., Nouet, J., Barnola, J M., Chappellaz, J., Fischer, H., Gallet, J C., Johnsen, S., Leuenberger, M., Loulergue, L., Luethi, D., Oerter, H., Parrenin, F., Raisbeck, G., Raynaud, D., Schilt, A., Schwander, J., Selmo, E., Souchez, R., Spahni, R., Stauffer, B., Steffensen, J P., Stenni, B., Stocker, T F., Tison, J L., Werner, M., and Wolff, E W.: Orbital and millennial Antarctic climate variability over the past 800,000 years, Science, 317, 793–6, http://dx.doi.org/10.1126/science.1141038doi:10.1126/science.1141038, 2007.

Knight, C A., Knight, N., and Kime, K.: Deuterium content of storm inflow and hailstone growth layers, J. Atmos. Sci., 38, 2485–2499, 1981.

Lai, C.-T., Ehleringer, J R., Bond, B J., and Paw U, K T.: Contributions of evaporation, isotopic non-steady state transpiration and atmospheric mixing on the $\delta^18$O of water vapour in Pacific Northwest coniferous forests, Plant Cell Environ., 29, 77–94, 2006.

Lee, X., Sargent, S., Smith, R., and Tanner, B.: In situ measurement of the water vapor$ ^18$O/ $^16$O isotope ratio for atmospheric and ecological applications, J. Atmos. Oceanic Technol., 22, 555–565, http://dx.doi.org/10.1175/JTECH1719.1doi:10.1175/JTECH1719.1, 2005.

Lee, X., Smith, R., and Williams, J.: Water vapour $^18$O/$^16$O isotope ratio in surface air in New England, USA, Tellus B, 58, 293–304, http://dx.doi.org/10.1111/j.1600-0889.2006.00191.xdoi:10.1111/j.1600-0889.2006.00191.x, 2006.

Majoube, M.: Fractionnement en oxygène-18 et en deuterium entre l'eau et sa vapeur, J. Chim. Phys., 68, 1423–1436, 1971.

Merlivat, L. and Jouzel, J.: Global climatic interpretation of the deuterium-oxygen 18 relationship for precipitation, J. Geophys. Res., 84, 5029–5033, 1979.

Michna, P., Schenk, J., Wanner, H., and Eugster, W.: MiniCASCC – A battery driven fog collector for ecological applications, in: Proceedings of the Fourth International Conference on Fog, Fog Collection and Dew, La Serena, Chile, 22–27 July 200, July, 169–172, 2007.

Petit, J., Jouzel, J., Raynaud, D., Barkov, N., Barnola, J., Basile, I., Bender, M., Chappellaz, J., Davis, M., Delaygue, G., Delmotte, M., Kotlyakov, V., Legrand, M., Lipenkov, V., Lorius, C., Pepin, L., Ritz, C., Saltzman, E., and Stievenard, M.: Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica, Nature, 399, 429–436, 1999.

Pfahl, S. and Wernli, H.: Air parcel trajectory analysis of stable isotopes in water vapor in the eastern Mediterranean, J. Geophys. Res., 113, D20104, http://dx.doi.org/10.1029/2008JD009839doi:10.1029/2008JD009839, 2008.

Pierrehumbert, R. and Wyman, B.: Upstream Effects of Mesoscale Mountains, J. Atmos. Sci., 42, 977–1003, 1985.

Rank, D. and Papesch, W.: Isotopic composition of precipitation in the Mediterranean basin in relation to air circulation patterns and climate, in: IAEA-Tecdoc-1453, 19–35, Isotope Hydrology Section International Atomic Energy Agency, Vienna, Austria, 2005.

Risi, C.: Les isotopes stables de l'eau: applications à l'étude du cycle de l 'eau et des variations du climat, Phd, Université Paris, 2009.

Rhodes, A L., Guswa, A J. and Newell, S E. Seasonal variation in the stable isotopic composition of precipitation in the tropical montane forests of Monteverde, Costa Rica, Water Resour. Res., 42, W11402, http://dx.doi.org/10.1029/2005WR004535doi:10.1029/2005WR004535, 2006.

Rozanski, K., Araguas-Araguas, L., and Gonfiantini, R.: Isotopic Patterns in Modern Global Precipitation, in: Climate Change in Continental Isotope Records, edited by: Swart, P K. and Lohman, K C., vol 78 of Geophysical Mongraph, 1–36, American Geophysical Union, 1993.

Scherhag, R.: Neue Methoden der Wetteranalyse und Wetterprognose, Springer, Berlin, 1948.

Schmid, S., Burkard, R., Frumau, K., Tobon, C., Bruijnzeel, L., Siegwolf, R., and Eugster, W.: Using eddy covariance and stable isotope mass balance techniques to estimate fog water contributions to a Costa Rican cloud forest during the dry season, Hydrol. Process., 25, 429–437, http://dx.doi.org/10.1002/hyp.7739doi:10.1002/hyp.7739, 2010a.

Schmid, S., Burkard, R., Frumau, K., Tobon, C., Bruijnzeel, L., Siegwolf, R., and Eugster, W.: The Wet-canopy Water Balance of a Costa Rican Cloud Forest During the dry Season, in: Tropical Montane Cloud Forests, edited by: Bruijnzeel, L., Scatena, F., and Hamilton, L., p. 741, Cambridge University Press, Cambridge, 2010b.

Schoch-Fischer, H., Rozanski, K., Jacob, H., Sonntag, C., Jouzel, J., Östlun, G., and Geyh, M.: Hydrometeorological factors controlling the time variation of D, $^18$O and 3H in atmospheric water vapour and precipitation in the northern westwind belt, in: Isotope Hydrology, edited by: Street-Perrott, A., 3–30, IAEA Publications (SM-270/19), 1983.

Scholl, M., Eugster, W., and Burkard, R.: Understanding the role of fog in forest hydrology: stable isotopes as tools for determining input and partitioning of cloud water in montane forests, Hydrol. Process., 25, 353–366, http://dx.doi.org/10.1002/hyp.7762doi:10.1002/hyp.7762, 2011.

Scholl, M A., Giambelluca, T W., Gingerich, S B., Nullet, M A., and Loope, L L.: Cloud water in windward and leeward mountain forests: The stable isotope signature of orographic cloud water, Water Resour. Res., 43, 1–13, http://dx.doi.org/10.1029/2007WR006011doi:10.1029/2007WR006011, 2007.

Sodemann, H., Schwierz, C., and Wernli, H.: Interannual variability of Greenland winter precipitation sources: Lagrangian moisture diagnostic and North Atlantic Oscillation influence, J. Geophys. Res., 113, D03 107, http://dx.doi.org/10.1029/2007JD008503doi:10.1029/2007JD008503, 2008.

Spiegel, J K., Aemisegger, F., Scholl, M., Wienhold, F G., Collett Jr., J L., Lee, T., van Pinxteren, D., Tilgner, A., Mertes, S., Herrmann, H., Werner, R A., Buchmann, N., and Eugster, W.: Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent, Atmos. Chem. Phys., 12, 9855–9863, http://dx.doi.org/10.5194/acp-12-9855-2012doi:10.5194/acp-12-9855-2012, 2012.

Steppeler, J., Doms, G., Schättler, U., Bitzer, H W., Gassmann, A., Damrath, U., and Gregoric, G.: Meso-gamma scale forecasts using the nonhydrostatic model LM, Meteor. Atmos. Phys., 82, 75–96, http://dx.doi.org/10.1007/s00703-001-0592-9doi:10.1007/s00703-001-0592-9, 2003.

Tilgner, A., Bräuer, P., Schöne, L., Birmili, W., Mertes, S., van Pinxteren, D., and Herrmann, H.: Critical assessment of meteorological conditions and flow connectivity during HCCT-2010, in preparation, 2012.

van Pinxteren, D., Brüggemann, E., Gnauk, T., Müller, K., Thiel, C., and Herrmann, H.: A GIS based approach to back trajectory analysis for the source apportionment of aerosol constituents and its first application, J. Atmos. Chem., 67, 1–28, http://dx.doi.org/10.1007/s10874-011-9199-9doi:10.1007/s10874-011-9199-9, 2011.

Vimeux, F., Masson, V., Delaygue, G., Jouzel, J., Petit, J., and Stievenard, M.: A 420,000 year deuterium excess record from East Antarctica: information on past changes in the origin of precipitation at Vostok, J. Geophys. Res., 106, 31863, http://dx.doi.org/10.1029/2001JD900076doi:10.1029/2001JD900076, 2001.

Welp, L R., Lee, X., Kim, K., Griffis, T J., Billmark, K A., and Baker, J M.: $\delta^18$O of water vapour, evapotranspiration and the sites of leaf water evaporation in a soybean canopy, Plant Cell Environ., 31, 1214–1228, http://dx.doi.org/10.1111/j.1365-3040.2008.01826.xdoi:10.1111/j.1365-3040.2008.01826.x, 2008.

Wen, X., Sun, X., Zhang, S., Yu, G., Sargent, S., and Lee, X.: Continuous measurement of water vapor D/H and $^18$O/$^16$O isotope ratios in the atmosphere, J. Hydrol., 349, 489–500, http://dx.doi.org/10.1016/j.jhydrol.2007.11.021doi:10.1016/j.jhydrol.2007.11.021, 2008.

Wen, X.-F., Zhang, S.-C., Sun, X.-M., Yu, G.-R., and Lee, X.: Water vapor and precipitation isotope ratios in Beijing, China, J. Geophys. Res., 115, D01103, http://dx.doi.org/10.1029/2009JD012408doi:10.1029/2009JD012408, 2010.

Wernli, H. and Davies, H C.: A Lagrangian-based analysis of extratropical cyclones. I: The method and some applications, Quart. J. Roy. Meteor. Soc., 123, 467–489, http://dx.doi.org/10.1002/qj.49712353811doi:10.1002/qj.49712353811, 1997.

White, J. and Gedzelman, S.: The isotopic composition of atmospheric water vapor and the concurrent meteorological conditions, J. Geophys. Res., 89, 4937–4939, 1984.

Yakir, D. and Sternberg, L. d. S L.: The use of stable isotopes to study ecosystem gas exchange, Oecologia, 123, 297–311, http://dx.doi.org/10.1007/s004420051016doi:10.1007/s004420051016, 2000.