Publications

Publications


Peer-reviewed (45), First author (4):

  1. Vallelonga, P., Bertagna, G., Blunier, T., Kjær, H. A., Popp, T. J., Rasmussen, S. O., Steffensen, J. P., Stowasser, C., Svensson, A. S., Warming, E., Winstrup, M., Bigler, M. & Kipfstuhl, S. Duration of Greenland Stadial 22 and ice-gas Delta age from counting of annual layers in Greenland NGRIP ice core. Climate of the Past 8, 1839-1847, doi:10.5194/cp-8-1839-2012 (2012).
  2. Dahl-Jensen, D., Albert, M. R., Aldahan, A., Azuma, N., Balslev-Clausen, D., Baumgartner, M., Berggren, A. M., Bigler, M., Binder, T., Blunier, T., Bourgeois, J. C., Brook, E. J., Buchardt, S. L., Buizert, C., Capron, E., Chappellaz, J., Chung, J., Clausen, H. B., Cvijanovic, I., Davies, S. M., Ditlevsen, P., Eicher, O., Fischer, H., Fisher, D. A., Fleet, L. G., Gfeller, G., Gkinis, V., Gogineni, S., Goto-Azuma, K., Grinsted, A., Gudlaugsdottir, H., Guillevic, M., Hansen, S. B., Hansson, M., Hirabayashi, M., Hong, S., Hur, S. D., Huybrechts, P., Hvidberg, C. S., Iizuka, Y., Jenk, T., Johnsen, S. J., Jones, T. R., Jouzel, J., Karlsson, N. B., Kawamura, K., Keegan, K., Kettner, E., Kipfstuhl, S., Kjær, H. A., Koutnik, M., Kuramoto, T., Kohler, P., Laepple, T., Landais, A., Langen, P. L., Larsen, L. B., Leuenberger, D., Leuenberger, M., Leuschen, C., Li, J., Lipenkov, V., Martinerie, P., Maselli, O. J., Masson-Delmotte, V., McConnell, J. R., Miller, H., Mini, O., Miyamoto, A., Montagnat-Rentier, M., Mulvaney, R., Muscheler, R., Orsi, A. J., Paden, J., Panton, C., Pattyn, F., Petit, J. R., Pol, K., Popp, T., Possnert, G., Prie, F., Prokopiou, M., Quiquet, A., Rasmussen, S. O., Raynaud, D., Ren, J., Reutenauer, C., Ritz, C., Rockmann, T., Rosen, J. L., Rubino, M., Rybak, O., Samyn, D., Sapart, C. J., Schilt, A., Schmidt, A. M. Z., Schwander, J., Schupbach, S., Seierstad, I., Severinghaus, J. P., Sheldon, S., Simonsen, S. B., Sjolte, J., Solgaard, A. M., Sowers, T., Sperlich, P., Steen-Larsen, H. C., Steffen, K., Steffensen, J. P., Steinhage, D., Stocker, T. F., Stowasser, C., Sturevik, A. S., Sturges, W. T., Sveinbjornsdottir, A., Svensson, A., Tison, J. L., Uetake, J., Vallelonga, P., van de Wal, R. S. W., van der Wel, G., Vaughn, B. H., Vinther, B., Waddington, E., Wegner, A., Weikusat, I., White, J. W. C., Wilhelms, F., Winstrup, M., Witrant, E., Wolff, E. W., Xiao, C., Zheng, J. & Community, N. Eemian interglacial reconstructed from a Greenland folded ice core. Nature 493, 489-494, doi:10.1038/nature11789 (2013).
  3. Kjær, H. A., Vallelonga, P., Svensson, A., Kristensen, M. E. L., Tibuleac, C. & Bigler, M. Continuous Flow Analysis Method for Determination of Dissolved Reactive Phosphorus in Ice Cores. Environmental Science & Technology 47, 12325-12332, doi:10.1021/es402274z (2013).
  4. Ezerinskis, Z., Spolaor, A., Kirchgeorg, T., Cozzi, G., Vallelonga, P., Kjaer, H. A., Sapolaite, J., Barbante, C. & Druteikiene, R. Determination of I-129 in Arctic snow by a novel analytical approach using IC-ICP-SFMS. Journal of Analytical Atomic Spectrometry 29, 1827-1834, doi:10.1039/c4ja00179f (2014).
  5. Spolaor, A., Vallelonga, P., Gabrieli, J., Martma, T., Bjorkman, M. P., Isaksson, E., Cozzi, G., Turetta, C., Kjær, H. A., Curran, M. A. J., Moy, A. D., Schonhardt, A., Blechschmidt, A. M., Burrows, J. P., Plane, J. M. C. & Barbante, C. Seasonality of halogen deposition in polar snow and ice. Atmospheric Chemistry and Physics 14, 9613-9622, doi:10.5194/acp-14-9613-2014 (2014).
  6. Vallelonga, P., Christianson, K., Alley, R. B., Anandakrishnan, S., Christian, J. E. M., Dahl-Jensen, D., Gkinis, V., Holme, C., Jacobel, R. W., Karlsson, N. B., Keisling, B. A., Kipfstuhl, S., Kjær, H. A., Kristensen, M. E. L., Muto, A., Peters, L. E., Popp, T., Riverman, K. L., Svensson, A. M., Tibuleac, C., Vinther, B. M., Weng, Y. & Winstrup, M. Initial results from geophysical surveys and shallow coring of the Northeast Greenland Ice Stream (NEGIS). Cryosphere 8, 1275-1287, doi:10.5194/tc-8-1275-2014 (2014).
  7. Bonne, J. L., Steen-Larsen, H. C., Risi, C., Werner, M., Sodemann, H., Lacour, J. L., Fettweis, X., Cesana, G., Delmotte, M., Cattani, O., Vallelonga, P., Kjær, H. A., Clerbaux, C., Sveinbjornsdottir, A. E. & Masson-Delmotte, V. The summer 2012 Greenland heat wave: In situ and remote sensing observations of water vapor isotopic composition during an atmospheric river event. Journal of Geophysical Research-Atmospheres 120, 2970-2989, doi:10.1002/2014jd022602 (2015).
  8. Nilsson, J., Vallelonga, P., Simonsen, S. B., Sorensen, L. S., Forsberg, R., Dahl-Jensen, D., Hirabayashi, M., Goto-Azuma, K., Hvidberg, C. S., Kjær, H. A. & Satow, K. Greenland 2012 melt event effects on CryoSat-2 radar altimetry. Geophysical Research Letters 42, 3919-3926, doi:10.1002/2015gl063296 (2015).
  9. Svensson, A., Fujita, S., Bigler, M., Braun, M., Dallmayr, R., Gkinis, V., Goto-Azuma, K., Hirabayashi, M., Kawamura, K., Kipfstuhl, S., Kjær, H. A., Popp, T., Simonsen, M., Steffensen, J. P., Vallelonga, P. & Vinther, B. M. On the occurrence of annual layers in Dome Fuji ice core early Holocene ice. Climate of the Past 11, 1127-1137, doi:10.5194/cp-11-1127-2015 (2015).
  10. A. Kjær, R. Dallmayr, J. Gabrieli, K. Goto-Azuma, M. Hirabayashi, A. Svensson, & P. Vallelonga. Greenland ice cores constrain glacial atmospheric fluxes of phosphorus. Journal of Geophysical Research: Atmospheres, 120(20), 2015
  11. Philippe, M., Tison, J. L., Fjosne, K., Hubbard, B., Kjær, H. A., Lenaerts, J. T. M., Drews, R., Sheldon, S. G., De Bondt, K., Claeys, P. & Pattyn, F. Ice core evidence for a 20th century increase in surface mass balance in coastal Dronning Maud Land, East Antarctica. Cryosphere, 10, 2501-2516, doi:10.5194/tc-10-2501-2016 (2016).
  12. Dallmayr, K. Goto-Azuma, H. A. Kjær, N. Azuma, M. Takata, S. Schüpbach, & M. Hirabayashi. A highresolution continuous flow analysis system for polar ice cores. Bulletin of Glaciological Research, 34:11–20, 2016
  13. A. Kjær, P. Vallelonga, A. Svensson, M. E. L. Kristensen, C. Tibuleac, M. Winstrup, and S. Kipfstuhl. An optical dye method for continuous determination of acidity in ice cores. Environmental Science & Technology, 50(19):10485–10493, 2016
  14. T. S George, C. D Giles, D Menezes-Blackburn, L. M. Condron, AC Gama-Rodrigues, D Jaisi, F. Lang, A. L Neal, M. I Stutter, D. Silva Almeida, R Bol, KG Cabugao, L. Celi, J. B. Cotner, G. Feng, D. S Goll, M. Hallama, J. Krueger, C. Plassard, A. Rosling, T. Darch, T. Fraser, R. Giesler, A. E. Richardson, F. Tamburini, C. A. Shand, D. G. Lumsdon, H. Zhang, M. S. A. Blackwell, C. Wearing, M. M. Mezeli, Å. Rossebø Almås, Y. Audette, I. Bertrand, E. Beyhaut, G. Boitt, N. Bradshaw, C.A. Brearley, T.W. Bruulsema, P. Ciais, V. Cozzolino, P.C. Duran, M.L. Mora, A.B. de Menezes, R.J. Dodd, K. Dunfield, C. Engl, J.J. Frazão, G. Garland, J.L. González Jiménez, J. Graca, S.J. Granger, A.F. Harrison, C. Heuck, E.Q. Hou, P.J. Johnes, K. Kaiser, A. Kjær, E. Klumpp, A.L. Lamb, K.A. Macintosh, E.B. Mackay, J. McGrath, C. McIntyre, T. McLaren, E. Mészáros, A. Missong, M. Mooshammer, C.P. Negrón, L.A. Nelson, V. Pfahler, P. Poblete-Grant, M. Randall, A. Seguel, K. Seth, A.C. Smith, M.M. Smits, J.A. Sobarzo, M. Spohn, K. Tawaraya, M. Tibbett, P. Voroney, H. Wallander, L. Wang, J. Wasaki, & P.M. Haygarth, Organic phosphorus in the terrestrial environment: a perspective on the state of the art and future priorities. Plant and Soil, 427, 191-208, 2018
  15. S. Schüpbach, H. Fischer, M. Bigler, T. Erhardt, G. Gfeller, D. Leuenberger, O. Mini, R. Mulvaney, N. J. Abram, L. Fleet, M.M. Frey, E. Thomas, A. Svensson, D. Dahl-Jensen, E. Kettner, A. Kjaer, I. Seierstad, J. P. Steffensen, S. O. Rasmussen, P. Vallelonga, M. Winstrup, A. Wegner, B. Twarloh, K. Wolff, K. Schmidt, K. Goto-Azuma, T. Kuramoto, M. Hirabayashi, J. Uetake, J. Zheng, J. Bourgeois, D. Fisher, D. Zhiheng, C. Xiao, M. Legrand, A. Spolaor, J. Gabrieli, C. Barbante, J.-H. Kang, S.D. Hur, S.B. Hong, H.J. Hwang, S. Hong, M. Hansson, Y. Iizuka, I. Oyabu, R. Muscheler, F. Adolphi, O. Maselli, J. McConnell, & E.W. Wolff. Greenland records of aerosol source and atmospheric lifetime changes from the eemian to the holocene. Nature communications, 9(1):1476, 2018
  16. M. Folden Simonsen, L. Cremonesi, G. Baccolo, S. Bosch, B. Delmonte, T. Erhardt, A. Kjær, M. Potenza, A. Svensson, & P. Vallelonga. Particle shape accounts for instrumental discrepancy in ice core dust size distributions. Climate of the Past, 14(5):601-608, 2018
  17.  R. L. Pyne, E. D. Keller, S. Canessa, N.A.N. Bertler, A.R. Pyne, D. Mandeno, P. Vallelonga, S. Semper, A. Kjær, E.d Hutchinson, et al. A novel approach to process brittle ice for continuous flow analysis of stable water isotopes. Journal of Glaciology, 64(244):289–299, 2018
  18. N.A.N Bertler, H. Conway, D. Dahl-Jensen, D.B. Emanuelsson, M. Winstrup, P. Vallelonga, J.E. Lee, E.J. Brook, J.P. Severinghaus, T.J. Fudge, E. D. Keller, W.T. Baisden, R. Hindmarsh, P. Neff, T. Blunier, R. Edwards, P.A. Mayewski, S. Kipfstuhl, C. Buizert, S. Canessa, R. Dadic, A. Kjær, A. Kurbatov, D. Zhang, E. D. Waddington, G. Baccolo, T. Beers, H. J. Brightley, L. Carter, D. Clemens-Sewall, V. G. Ciobanu, B. Delmonte, L. Eling, A. Ellis, S. Ganesh, N.R. Golledge, S. Haines, M. Handley, R. L. Hawley, C.M. Hogan, K.M. Johnson, E. Korotkikh, D.P. Lowry, D. Mandeno, R.M. McKay, J.A. Menking, T.R. Naish, C. Noerling, A. Ollive, A. Orsi, B.C. Proemse, A.R. Pyne, R.L. Pyne, J. Renwick, R.P. Scherer, S. Semper, M. Simonsen, S.B. Sneed, E.J. Steig, A. Tuohy, A. Ulayottil Venugopal, F. Valero-Delgado, J. Venkatesh, F. Wang, S. Wang, D. A. Winski, V. H. L. Winton, A. Whiteford, C. Xiao, Y. Jiao, & X. Zhang. The ross sea dipole–temperature, snow accumulation and sea ice variability in the ross sea region, antarctica, over the past 2700 years. Climate of the Past, 14(2):193, 2018
  19. Cuevas, C. A., Maffezzoli, N., Corella, J. P., Spolaor, A., Vallelonga, P., Kjær, H. A., Simonsen, M., Winstrup, M., Vinther, B., Horvat, C., Fernandez, R. P., Kinnison, D., Lamarque, J. F., Barbante, C. & Saiz-Lopez, A. Rapid increase in atmospheric iodine levels in the North Atlantic since the mid-20th century. Nature Communications 9, doi:10.1038/s41467-018-03756-1 (2018).
  20. Winstrup, Mai; Vallelonga, Paul; Kjær, Helle A.; Fudge, Tyler J.; Lee, James E.; Riis, Marie H.; Edwards, Ross; Bertler, Nancy A.N.; Blunier, Thomas; Brook, Ed J.; Buizert, Christo; Ciobanu, Gabriela; Conway, Howard; Dahl-Jensen, Dorthe; Ellis, Aja; Emanuelsson, B. Daniel; Hindmarsh, Richard C.A.; Keller, Elizabeth D.; Kurbatov, Andrei V.; Mayewski, Paul A.; Neff, Peter D.; Pyne, Rebecca L.; Simonsen, Marius F.; Svensson, Anders; Tuohy, Andrea; Waddington, Edwin D.; Wheatley, Sarah.. A 2700-year annual timescale and accumulation history for an ice core from Roosevelt Island, West Antarctica. Climate of the Past, 15, 751-779 8 (2019).
  21. Simonsen, M, Giovanni, B, Blunier, T., Borunda, A, Delmonte, B., Frei R, Goldstein, S, Grinsted, A., Kjær, HA, Sowers, T., Svensson, A., Vinther, B Vladimirova, D., Winckler, G., Winstrup, M., Vallelonga, P East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat, Nature communications1 (2019): 1-8.
  22. Corella, J.P., Maffezzoli, N., Cuevas, C.A., Vallelonga, P., Spolaor, A., Cozzi, G., Müller, J., Vinther, B., Barbante, C., Kjær, H.A. and Edwards, R., 2019. Holocene atmospheric iodine evolution over the North Atlantic. Climate of the Past, 15(6).
  23. Maffezzoli, N., Vallelonga, P., Edwards, R., Saiz-Lopez, A., Turetta, C., Kjær, H.A., Barbante, C., Vinther, B. and Spolaor, A., 2019. A 120 000-year record of sea ice in the North Atlantic?. Climate of the Past, 15(6), pp.2031-2051.
  24. Svensson, Anders, Dorthe Dahl-Jensen, Jørgen Peder Steffensen, Thomas Blunier, Sune O. Rasmussen, Bo M. Vinther, Paul Vallelonga, Emilie Capron, Vasileios Gkinis, Eliza Cook, Helle Astrid Kjær, Raimund Muscheler, Sepp Kipfstuhl, Frank Wilhelms, Thomas F. Stocker, Hubertus Fischer, Florian Adolphi, Tobias Erhardt, Michael Sigl, Amaelle Landais, Frédéric Parrenin, Christo Buizert, Joseph R. McConnell, Mirko Severi, Robert Mulvaney, and Matthias Bigler. "Bipolar volcanic synchronization of abrupt climate change in Greenland and Antarctic ice cores during the last glacial period." Climate of the Past16, no. 4: 1565-1580 (2020).
  25. Seyedhamidreza Mojtabavi, Frank Wilhelms, Eliza Cook, Siwan M. Davies, Giulia Sinnl, Mathias Skov Jensen, Dorthe Dahl-Jensen, Anders Svensson, Bo M. Vinther, Sepp Kipfstuhl3, Gwydion Jones, Nanna B. Karlsson6, Sergio Henrique Faria9, Vasileios Gkinis, Helle Astrid Kjær, Tobias Erhardt, Sarah M. P. Berben, Kerim H. Nisancioglu, Iben Koldtoft, and Sune Olander Rasmussen "A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination." Climate of the Past6 (2020): 2359-2380.
  26. Eystein Jansen, Jens Hesselbjerg Christensen, Trond Dokken, Kerim H Nisancioglu, Bo M Vinther, Emilie Capron, Chuncheng Guo, Mari F Jensen, Peter L Langen, Rasmus A Pedersen, Shuting Yang, Mats Bentsen, Helle A Kjær, Henrik Sadatzki, Evangeline Sessford, Martin Stendel "Past perspectives on the present era of abrupt Arctic climate change." Nature Climate Change(2020): 1-8.
  27. Hvidberg, C.S., Grinsted, A., Dahl-Jensen, D., Khan, S.A., Kusk, A., Andersen, J.K., Neckel, N., Solgaard, A., Karlsson, N.B., Kjær, H.A. and Vallelonga, P., 2020. Surface velocity of the Northeast Greenland Ice Stream (NEGIS): assessment of interior velocities derived from satellite data by GPS. The Cryosphere, 14(10), pp.3487-3502..
  28. Sadatzki, Henrik, Niccolò Maffezzoli, Trond M. Dokken, Margit H. Simon, Sarah MP Berben, Kirsten Fahl, Helle A. Kjær, Andrea Spolaor, Ruediger Stein, Paul Vallelonga, Bo M. Vinther, and Eystein Jansen "Rapid reductions and millennial-scale variability in Nordic Seas sea ice cover during abrupt glacial climate changes." Proceedings of the National Academy of Sciences 117, no. 47 (2020): 29478-29486.
  29. Kjær, H. A., Lolk Hauge, L., Simonsen, M., Yoldi, Z., Koldtoft, I., Hörholdt, M., Freitag, J., Kipfstuhl, S. Svensson, A., & Vallelonga, P. ”A portable Lightweight In Situ Analysis (LISA) box for ice and snow analysis”. The Cryosphere (accepted 2021).
  30. Segato, D, Del Carmen, M., Hidalgo, V., Edwards, R., Barbaro, E., Vallelonga, P., Kjær, H., Simonsen, M., Vinther, B., Maffezzoli, N., Zangrando, R., Turetta, C., Battistel, D., Vésteinsson, O., Barbante, C. and A. Spolaor. Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing. Climate of the Past, 17(4), 1533-1545 (2021).
  31. Moser, D. E., Jackson, S., Kjær, H. A., Markle, B., Ngoumtsa, E., Pedro, J. B., Segato, D., Spolaor, A., Tezner, D., Vallelonga, P. and Thomas, E. R. (2021). An age scale for the first shallow (sub-) Antarctic ice core from Young Island, Northwest Ross Sea. Geosciences, 11(9), 368.
  32. Crockart, C. K., Vance, T. R., Fraser, A. D., Abram, N. J., Criscitiello, A. S., Curran, M. A., Favier, V., Gallant, A.J.E., Kittel, C. , Kjær, H. A., Klekociuk, A. R., Jong, M.L., Moy, A.D. Plummer, C.T., Vallelonga, P.T., Wille, J.& Zhang, L. (2021). El Niño–Southern Oscillation signal in a new East Antarctic ice core, Mount Brown South. Climate of the Past, 17(5), 1795-1818.
  33. Vallelonga, P., Maffezzoli, N., Saiz-Lopez, A., Scoto, F., Kjær, H. A., & Spolaor, A. (2021). Sea-ice reconstructions from bromine and iodine in ice cores. Quaternary Science Reviews, 269, 107133.
  34. Maffezzoli, N., Risebrobakken, B., Miles, M. W., Vallelonga, P., Berben, S. M., Scoto, F., Edwards, R., Kjær, H.A., Sadatzki, H., Saiz-Lopez, A., Turetta, C., Barbante, C., Vinther, B & Spolaor, A. (2021). Sea ice in the northern North Atlantic through the Holocene: Evidence from ice cores and marine sediment records. Quaternary Science Reviews, 273, 107249.
  35. Corella, J. P., Maffezzoli, N., Spolaor, A., Vallelonga, P., Cuevas, C. A., Scoto, F., Müller, J. Vinther, B., Kjær, H.A., Cozzi, G., Edwards, R., Barbante, C.& Saiz-Lopez, A. (2022). Climate changes modulated the history of Arctic iodine during the Last Glacial Cycle. Nature Communications, 13(1), 1-9.
  36. Venugopal, A. U., Bertler, N. A., Pyne, R. L., Kjær, H. A., Winton, V. H. L., Mayewski, P. A., & Cortese, G. (2022). Role of mineral dust in the nitrate preservation during the glacial period: Insights from the RICE ice core. Global and Planetary Change, 103745.
  37. Ming, J., Lee, K., Wang, F., Zhang, T., & Kjær, H. A. (Eds.). (2022). Impure Snow and Ice in Remote Areas: Arctic, Antarctica and High Mountains. Frontiers Media SA.
  38. Lin, J., Svensson, A., Hvidberg, C. S., Lohmann, J., Kristiansen, S., Dahl-Jensen, D., Steffensen, J.P., Rasmussen, S.O., Cook, E., Kjær, H.A., Vinther, B.M., Fischer, H., Stocker, T., Sigl, M., Bigler, M., Severi,, M., Traversi, R.& Mulvaney, R. (2022). Magnitude, frequency and climate forcing of global volcanism during the last glacial period as seen in Greenland and Antarctic ice cores (60–9 ka). Climate of the Past, 18(3), 485-506.
  39. Erhardt, T., Bigler, M., Federer, U., Gfeller, G., Leuenberger, D., Stowasser, O., Röthlisberger, R., Schüpbach, S., Ruth, U., Twarloh, B., Wegner, A., Goto-Azuma, K. Kuramoto, T., Kjær, H.A. Vallelonga, P. T., Siggaard-Andersen, M.-L., Hansson, M.E., Benton, A. K., Fleet, F.G. Mulvaney, R., Thomas, E.R., Abram, N., Stocker, T. F.,& Fischer, H. (2022). High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores. Earth System Science Data, 14(3), 1215-1231.
  40. Westhoff, J., Sinnl, G., Svensson, A., Freitag, J., Kjær, H. A., Vallelonga, P., Vinther, B. Kipfstuhl, S., Dahl-Jensen, D. & Weikusat, I. (2022). Melt in the Greenland EastGRIP ice core reveals Holocene warm events. Climate of the Past, 18(5), 1011-1034.
  41. Materić, D., Kjær, H. A., Vallelonga, P., Tison, J. L., Röckmann, T., & Holzinger, R. (2022). Nanoplastics measurements in Northern and Southern polar ice. Environmental Research, 208, 112741.

  42. Aslak Grinsted, Christine S Hvidberg, David A Lilien, Nicholas M Rathmann, Nanna B Karlsson, Tamara Gerber, Helle Astrid Kjær, Paul Vallelonga, Dorthe Dahl-Jensen", Accelerating ice flow at the onset of the Northeast Greenland Ice Stream." Nature Communications 13.1 (2022): 5589.

  43. Federico Scoto, Henrik Sadatzki, Niccolò Maffezzoli, Carlo Barbante, Alessandro Gagliardi, Cristiano Varin, Paul Vallelonga, Vasileios Gkinis, Dorthe Dahl-Jensen, Helle Astrid Kjær, François Burgay, Alfonso Saiz-Lopez, Ruediger Stein, Andrea Spolaor"Sea ice fluctuations in the Baffin Bay and the Labrador Sea during glacial abrupt climate changes." Proceedings of the National Academy of Sciences 119.44 (2022): e2203468119.

  44. Helle Astrid Kjær, Patrick Zens, Samuel Black, Kasper Holst Lund, Anders Svensson, Paul Vallelonga"Canadian forest fires, Icelandic volcanoes and increased local dust observed in six shallow Greenland firn cores." Climate of the Past 18.10 (2022): 2211-2230.

  45. Segato, D., Saiz-Lopez, A., Mahajan, A. S., Wang, F., Corella, J. P., Cuevas, C. A., Erhardt, T., Jensen, C. M., Zeppenfeld, C., Kjær H. A., Turetta, C., Raymond Lee Cairns, W. ,Barbante, C. & Spolaor, A. (2023). Arctic mercury flux increased through the Last Glacial Termination with a warming climate.Nature Geoscience, 1-7.

  46. Erhardt, Tobias, et al. "High resolution aerosol data from the top 3.8 ka of the EGRIP ice core."Earth System Science Data Discussions2023 (2023): 1-21.

  47. Vance, Tessa R., et al. "An annually resolved chronology for the Mount Brown South ice cores, East Antarctica."Climate of the Past Discussions2023 (2023): 1-32.

  48. Gkinis, V., Jackson, S., Abram, N. J., Plummer, C., Blunier, T., Harlan, M., ... & Vance, T. R. (2024). An East Antarctic, sub-annual resolution water isotope record from the Mount Brown South Ice core.Scientific Data,11(1), 986.

  49. Buizert, Christo, et al. "The Greenland spatial fingerprint of Dansgaard–Oeschger events in observations and models."Proceedings of the National Academy of Sciences121.44 (2024): e2402637121.

  50. Harlan, Margaret, et al. "High resolution continuous flow analysis impurity data from the Mount Brown South ice core, East Antarctica."Earth System Science Data Discussions2024 (2024): 1-20.

  51. Harlan, M. M., Fox, J., Kjær, H. A., Vance, T. R., Svensson, A., & Cook, E. (2024). Cryptotephra in the East Antarctic Mount Brown South ice core.Climate of the Past Discussions,2024, 1-34.

 

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  2. Helle Astrid Kjær and Nanna Andreasen, "Øget viden om fortidens havis fra nye proxier", KVANT, 3, 2024
  3. Thomas Stocker, Helle Astrid Kjær, David Trads, Henrik Prætorius, Eliza Cook, Marcello Petitta, Alexander Risvang, “TiPES WP7 Communications Plan: D7.7 (D37)- Version 1”, 2023
  4. Eliza Cook, Helle Astrid Kjær, Guido Vettoretti, Johannes Lohmann, Nicola Botta, Marisa Montoya, Anna von der Heydt, Niklas Boers, Denis-Didier Rousseau, Michel Crucifix, Louise Sime, Christian Kuehn, “WP8, D8.4, D42: Data Management Plan Evaluation”, 2023
  5. Ulrike Feudel, Helle Astrid Kjær “TiPES D8.6 Mid-term report from scientific Advisory Board”, 2023
  6. Niklas Boers, Jens Fohlmeister, Eirik MyrvollNilsen, Keno Riechers, Witold Bagniewski, Michael Ghil, Denis-Didier Rousseau, :Helle Astrid Kjær, Sune Rasmussen, Anders Svensson, “TiPES WP1, D1.3: Spatial patterns of the interrelations between different Tipping Elements”, 2022
  7. Dagmara Rusiecka; Helena Martins;  Niklas Boers; Helle Astrid Kjær; Petra Langebroek; Catherine Lourdes Dy;  Christoph Heinze; Thorsten Blenckner; Peter Ditlevsen; Svein Østerhus; “Key findings and recommendations from the H2020 projects on Tipping Points: TiPES, COMFORT, TiPACCs”, https://zenodo.org/record/6577027, 2022
  8. Eliza Cook, Helle Astrid Kjær, Marissa Montoya, Anna von der Heydt, Niklas Boers, Denis-Didier Rousseau, Michel Crucifix, Louise Sime, Christian Kuehn, “TiPES WP8, D8.1, D39: Data Management Plan”, https://ec.europa.eu/research/participants/documents/downloadPublic?documentIds=080166e5ce96620b&appId=PPGMS, 2020
  9. Helle Astrid Kjær and Daniel Herrero Ditlevsen “TiPES D9.1- H - POPD - Requirement No. 1”, 2019
  10. Helle Astrid Kjær and Daniel Herrero Ditlevsen “TiPES WP9, D9.2; H-Requirement No. 2”, 2019
  11. Helle Astrid Kjær and Daniel Herrero Ditlevsen “TiPES WP9, D9.3: POPD-Requirement No. 3”, 2019
  12. Helle Astrid Kjær, Henrik Prætorius, Marcello Pettita, “TiPES WP8, D8.2 Setup internal communication”, 2019
  13. Aalgeirsdóttir, M. Stendel, J. Hesselbjerg, J. Cappelen Christensen, H. A. Kjær, F. Vejen, R. Mottram, and P. Lucas-Picher. Danish climate centre report 09-08 assessment of the temperature, precipitation and snow in the rcm hirham4 at 25 km resolution
  14. A. Kjær and D. Balslev-Clausen. Iskerner-et indblik i fortidens klimaforandringer. In Aspekter Af Dansk Kemi I Det 20. Og 21. Århundrede, pages 65–70. Kemi Forlaget, 2011
  15. A. Kjær. Laboratory supervision of msc projects -qualitative interviews, thematic analysis, and recommendations for the supervisor. Improving University Science Teaching and Learning Pedagogical Projects 2018, Department of Science Education University of Copenhagen, Published by the Department of Science Education, University of Copenhagen, Denmark, 12, 2018
  16. Svensson and H. A. Kjær, Afslørende kemi i Grønlands og Antarktis’ iskerner, in Dansk kemi, 99, 4, (2018)

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