1. Inventory
  2. Tunu

Tunu

General Information

The ICF archive contains one 10.4 cm diameter, 213 m long core drilled in 2013 for Joe McConnell (Tunu2013). The period of record in the Tunu2013 core is 268-2013 CE (Grieman and others, 2018), and the Tunu2013 ice core site has an average accumulation rate of 0.100 m w.e. yr-1 (Sigl and others, 2015). The archive also contains a series of shallower (15 m depth) cores drilled at Tunu in 1996 for Konrad Steffen. The mean annual temperature at the Tunu-N weather station is -27.5 C. Only small sections of each core remain in the archive.

Core(s) Available

Core Name Core ID Years Drilled Lat/Long Core Top (m) Core Bottom (m) Core Diameter (cm) Site Elevation Drilling Method Drillers Drilling Fluid Original PI PI Affiliation De-accessed
TUNU 2013 TUNU2013 2013 78, -33.9 0.00 213.39 10.40 2105 Electromechanical / 4-Inch Drill IDDO Dry Joe McConnell Desert Research Institute No
TUNU E50 T-E50 1996 78.0166667, -33.9930556 0.00 14.99 10.16 2090 Electromechanical PICO Dry Konrad Steffen Univ. of Colorado Yes
TUNU N25 TN25 1996 78.0166667, -33.9930556 0.00 15.01 10.16 2050 Electromechanical PICO Dry Konrad Steffen Univ. of Colorado Yes
TUNU N50 TN50 1996 78.0166667, -33.9930556 0.00 14.93 10.16 2050 Electromechanical PICO Dry Konrad Steffen Univ. of Colorado Yes
TUNU South T-South 1996 78.0166667, -33.9930556 0.00 14.98 10.16 2000 Electromechanical PICO Dry Konrad Steffen Univ. of Colorado Yes
TUNU W25 TW25 1996 78.0166667, -33.9930556 0.00 14.98 10.16 2460 Electromechanical PICO Dry Konrad Steffen Univ. of Colorado Yes
TUNU W50 TW50 1996 78.0166667, -33.9930556 0.00 15.04 10.16 1936 Electromechanical PICO Dry Konrad Steffen Univ. of Colorado Yes
Data
Publications
  • Abbott PM, Plunkett G, Corona C, Chellman NJ, McConnell JR, Pilcher JR, Stoffel M, and Sigl M (2020) Cryptotephra from the Icelandic Veiðivötn 1477 CE eruption in a Greenland ice core: confirming the dating of 1450s CE volcanic events and assessing the eruption's climatic impact. Climate of the Past. https://doi.org/10.5194/cp-2020-104
  • Bales RC, McConnnell JR, Mosley-Thompson E, Csatho B (2001) Accumulation over the Greenland ice sheet from historical and recent records. Journal of Geophysical Research, 106(D24), 33,813-33,825. https://doi.org/10.1029/2001JD900153
  • Burke A, Innes HM, Crick L, Anchukaitis KJ, Byrne MP, Hutchison W, McConnell JR, Moore KA, Rae JWB, Sigl M, and Wilson R (2023) High sensitivity of summer temperatures to stratospheric sulfur loading from volcanoes in the Northern Hemisphere. Proceedings of the National Academy of Sciences, 120(47), e2221810120. https://doi.org/10.1073/pnas.2221810120
  • Burke A, Moore KA, Sigl M, Nita DC, McConnell JR, Adkins JF (2019) Stratospheric eruptions from tropical and extra-tropical volcanoes constrained using high-resolution sulfur isotopes in ice cores. Earth and Planetary Science Letters, 521, 113-119. https://doi.org/10.1016/j.epsl.2019.06.006
  • Gabriel I, Plunkett G, Abbott PM, Behrens M, Burke A, Chellman N, Cook E, Fleitmann D, Horhold M, Hutchison W, McConnell JR, Oladottir BA, Preiser-Kapeller J, Sliwinski JT, Sugden P, Twarloh B, Sigl M (2024) Decadal-to-centennial increases of volcanic aerosols from Iceland challenge the concept of a Medieval Quiet Period. Communications Earth & Environment, 5:194, 1-18. https://doi.org/10.1038/s43247-024-01350-6
  • Grieman MM, Aydin M, McConnell JR, and Saltzman ES (2018) Burning-derived vanillic acid in an Arctic ice core from Tunu, northeastern Greenland. Climate of the Past, 14, 1625-1637. https://doi.org/10.5194/cp-14-1625-2018
  • McConnell JR, Chellman NJ, Wilson AI, Stohl A, Arienzo MM, Eckhardt S, Fritzsche D, Kipfstuhl S, Opel T, Place PF, Steffensen JP (2019) Pervasive Arctic lead pollution suggests substantial growth in medieval silver production modulated by plague, climate, and conflict. Proceedings of the National Academy of Sciences, 116 (30) 14910-14915. https://doi.org/10.1073/pnas.1904515116
  • Mosley‐Thompson E, McConnell JR, Bales RC, Li Z, Lin P‐N, Steffen K, Thompson LG, Edwards R, and Bathke D (2001) Local to regional‐scale variability of annual net accumulation on the Greenland ice sheet from PARCA cores. J. Geophys. Res., 106( D24), 33839-33851. https://doi.org/10.1029/2001JD900067
  • Plunkett G, Sigl M, Pilcher JR, McConnell JR, Chellman N, Steffensen J, Büntgen U (2020) Smoking guns and volcanic ash: the importance of sparse tephras in Greenland ice cores. Polar Research, 39. https://doi.org/10.33265/polar.v39.3511
  • Sigl M, Winstrup M, McConnell JR, Welten KC, Plunkett G, Ludlow F, Büntgen U, Caffee M, Chellman N, Dahl-Jensen D, Fischer H, Kipfstuhl S, Kostick C, Maselli OJ, Mekhaldi F, Mulvaney R, Muscheler R, Pasteris DR, Pilcher JR, Salzer M, Schüpbach S, Steffensen JP, Vinther BM and Woodruff TE (2015) Timing and climate forcing of volcanic eruptions for the past 2,500 years. Nature, 23, 543-549. https://doi.org/10.1038/nature14565
  • Smith VC, Costa A, Aguirre-Díaz G, Pedrazzi D, Scifo A, Plunkett G, Poret M, Tournigand P-Y, Miles D, Dee MW, McConnell JR, Sunyé-Puchol I, Harris PD, Sigl M, Pilcher JR, Chellman N, Gutiérrez E (2020) The magnitude and impact of the 431 CE Tierra Blanca Joven eruption of Ilopango, El Salvador. Proceedings of the National Academy of Sciences, 202003008. https://doi.org/10.1073/pnas.2003008117
  • Zhang B, Chellman NJ, Kaplan JO, Mickley LJ, Ito T, Wang X, Wensman SM, McCrimmon D, Steffensen JP, McConnell JR, Liu P (2024) Improved biomass burning emissions from 1750 to 2010 using ice core records and inverse modeling. Nature Communications, 15, 3651. https://doi.org/10.1038/s41467-024-47864-7