Articles in peer-reviewed journals

  • Takahata, N., Tomonaga, Y., Kumamoto, Y., Yamada, M., & Sano, Y. (2018). Direct tritium emissions to the ocean from the Fukushima Dai-ichi nuclear accident. Geochem. J., 52, doi:10.2343/geochemj.2.0499.
  • North, S. M., Stockhecke, M., Tomonaga, Y., & Mackay, A. W. (2018). Analysis of a fragmentary diatom record from Lake Van (Turkey) reveals substantial lake-level variability during previous interglacials MIS7 and MIS5e. J. Paleolimnol., 59(1), 119–133, doi:10.1007/s10933-017-9973-z.
  • Sano, Y., Kinoshita, N., Kagoshima, T., Takahata, N., Sakata, S., Toki, T., Kawagucci, S., Waseda, A., Lan, T., Wen, H., Chen, A., Lee, H., Yang, T. F., Zheng, G., Tomonaga, Y., Roulleau, E., & Pinti, D. L. (2017). Origin of methane-rich natural gas at the West Pacific convergent plate boundary. Sci. Rep., 7, 15646, doi:10.1038/s41598-017-15959-5.
  • Tomonaga, Y., Brennwald, M. S., Livingstone, D. M., Kwiecien, O., Randlett, M.-È., Stockhecke, M., Unwin, K., Anselmetti, F. S., Beer, J., Haug, G. H., Schubert, C. J., Sturm, M., & Kipfer, R. (2017). Porewater salinity reveals past lake-level changes in Lake Van, the Earth’s largest soda lake. Sci. Rep., 7, 313, doi:10.1038/s41598-017-00371-w.
  • Tomonaga, Y., Marzocchi, R., Pera, S., Pfeifer, H.–R., Kipfer, R., Decrouy, L., & Vennemann, T. (2017). Using noble-gas and stable-isotope data to determine groundwater origin and flow regimes: application to the Ceneri Base Tunnel (Switzerland). J. Hydrol., 545, 395–409, doi:10.1016/j.jhydrol.2016.11.043.
  • Cukur, D., Krastel, S., Tomonaga, Y., Schmincke, H.-U., Sumita, M., Meydan, A. F., Cagatay, M. N., Toker, M., Kim, S. P., & Horozal, S. (2017). Structural characteristics of the Lake Van Basin, eastern Turkey, from high-resolution seismic reflection profiles and multibeam echosounder data: geologic and tectonic implications. Int. J. Earth Sci., 106(1), 239-253, doi:10.1007/s00531-016-1312-5.
  • Wen, H., Sano, Y., Takahata, N., Tomonaga, Y., Ishida, A., Tanaka, K., Kagoshima, T., Shirai, K., Ishibashi, J., Yokose, H., Tsunogai, U., & Yang, T.F. (2016). Helium and methane sources and fluxes of shallow submarine hydrothermal plumes near the Tokara Islands, Southern Japan. Sci. Rep., 6, 34126, doi:10.1038/srep34126.
  • Kagoshima, T., Sano, Y., Takahata, N., Ishida, A., Tomonaga, Y., Roulleau, E., Pinti, D. L., Fischer, T. P., Lan, T., Nishio, Y., Tsunogai, U., & Guo, Z. (2016). Spatial and temporal variations of gas geochemistry at Mt. Ontake, Japan. J. Volcanol. Geoth. Res., 325, 179–188, doi:10.1016/j.jvolgeores.2016.06.013.
  • Tyroller, L., Tomonaga, Y., Brennwald, M. S., Ndayisaba, C., Naeher, S., Schubert, C. J., North, R.P., & Kipfer, R. (2016). Improved method for the quantification of methane concentrations in unconsolidated lake sediments. Environ. Sci. Technol., 50(13), 7047–7055, doi:10.1021/acs.est.5b05292.
  • Tomonaga, Y., Brennwald, M. S., & Kipfer, R. (2015). Attenuation of diffusive noble-gas transport in laminated sediments of the Stockholm Archipelago. Limnol. Oceanogr., 60(2), 497–511, doi:10.1002/lno.10045.
  • Tomonaga, Y., Brennwald, M. S., Meydan, A. F., & Kipfer, R. (2014). Noble gases in the sediments of Lake Van – solute transport and palaeoenvironmental reconstruction. Quat. Sci. Rev., 104, 117–126, doi:10.1016/j.quascirev.2014.09.005.
  • Cukur, D., Krastel, S., Schmincke, H.-U., Sumita, M., Tomonaga, Y., & Cagatay, M.N. (2014). Water level changes in Lake Van, Turkey, during the past ca. 600 ka: climatic, volcanic and tectonic controls. J. Paleolimnol., 52(3), 201–214, doi:10.1007/s10933-014-9788-0.
  • Randlett, M.-È., Coolen, M. J. L., Stockhecke, M., Pickarski, N., Litt, T., Balkema, C., Kwiecien, O., Tomonaga, Y., Wehrli, B., & Schubert, C.J. (2014). Alkenone distribution in Lake Van sediment over the last 270 kyrs: influence of temperature and haptophyte species composition. Quat. Sci. Rev., 104, 53-62, doi:10.1016/j.quascirev.2014.07.009.
  • Tomonaga, Y., Brennwald, M. S., Livingstone, D. M., Tomonaga, G., & Kipfer, R. (2014). Determination of natural in vivo noble-gas concentrations in human blood. PLoS ONE, 9(5), e96972, doi:10.1371/journal.pone.0096972.
  • Cukur, D., Krastel, S., Tomonaga, Y., Çağatay, M. N., & Meydan, A. F. (2013). Seismic evidence of shallow gas from Lake Van, eastern Turkey. Mar. Petrol. Geol., 48, 341–353, doi:10.1016/j.marpetgeo.2013.08.017.
  • Tomonaga, Y., Brennwald, M. S., & Kipfer, R. (2013). Using helium and other noble gases in ocean sediments to characterize active methane seepage off the coast of New Zealand. Mar. Geol., 344, 34–40, doi:10.1016/j.margeo.2013.07.010.
  • Tomonaga, Y., Blättler, R., Brennwald, M. S., & Kipfer, R. (2012). Interpreting noble-gas concentrations as proxies for salinity and temperature in the world’s largest soda lake (Lake Van, Turkey). J. Asian Earth Sci., 59, 99–107, doi:10.1016/j.jseaes.2012.05.011.
  • Litt, T., Anselmetti, F. S., Baumgarten, H., Beer, J., Cagatay, N., Cukur, D., Damci, E., Glombitza, C., Heumann, G., Kallmeyer, J., Kipfer, R., Krastel, S., Kwiecien, O., Meydan, A. F., Orcen, S., Pickarski, N., Randlett, M.-E., Schmincke, H.-U., Schubert, C. J., Sturm, M., Sumita, M., Stockhecke, M., Tomonaga, Y., Vigliotti, L., Wonik, T., & the PALEOVAN Scientific Team (2012). 500,000 Years of Environmental History in Eastern Anatolia: The PALEOVAN Drilling Project. Scientific Drilling, 14, 18–29, doi:10.5194/sd-14-18-2012.
  • Holzner, C. P., Tomonaga, Y., Stöckli, A., Denecke, N., & Kipfer, R. (2012). Using noble gases to analyze the efficiency of artificial aeration in Lake Hallwil, Switzerland. Water Resour. Res., 48, W09531, doi:10.1029/2012WR012030.
  • Tomonaga, Y., Brennwald, M. S., & Kipfer, R. (2011). Spatial distribution and flux of terrigenic He dissolved in the sediment pore water of Lake Van (Turkey). Geochim. Cosmochim. Acta, 75(10), 2848–2864, doi:10.1016/j.gca.2011.02.038.
  • Tomonaga, Y., Brennwald, M. S., & Kipfer, R. (2011). An improved method for the analysis of dissolved noble gases in the pore water of unconsolidated sediments. Limnol. Oceanogr.: Methods, 9, 42–49, doi:10:4319/lom.2011.9.42.
  • Kaden, H., Peeters, F., Lorke, A., Kipfer, R., Tomonaga, Y., & Karabiyikoglu, M. (2010). Impact of lake level change on deep-water renewal and oxic conditions in deep saline Lake Van, Turkey. Water Resour. Res., 46, W11508, doi:10.1029/2009WR008555.
  • Klump, S., Tomonaga, Y., Kienzler, P., Kinzelbach, W., Baumann, T., Imboden, D. M., & Kipfer, R. (2007). Field experiments yield new insights into gas exchange and excess air formation in natural porous media. Geochim. Cosmochim. Acta, 71 (10) 1385–1397, doi:10.1016/j.gca.2006.12.006.

Book chapters


  • Tomonaga, Y. (2010). Noble gases as tracers for transport of solutes and fluids in lake and ocean sediments. Ph.D. thesis, ETH Zurich, Zurich, doi:10.3929/ethz-a-006129449.
  • Tomonaga, Y. (2004). Gasaustausch in porösen Medien: Bildung von excess air unter natürlichen Bedingungen. Diploma thesis, EAWAG / ETH Zürich, doi:10.3929/ethz-a-006157804.