Compilation of stable isotope data from East Antarctic snow pits and firn cores
Stable water isotopes in polar ice provide a wealth of information about past climate evolution. Snow-pit studies allow us to relate observed weather and climate conditions to the measured isotope variations in the snow. They therefore offer the possibility to test our understanding of how isotope s...
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Format: | Dataset |
Language: | English |
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PANGAEA
2017
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.883787 https://doi.org/10.1594/PANGAEA.883787 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.883787 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_ECUS AWI_Envi AWI_Glac AWI_SPACE B41 B50 East Antarctica Estimating climate variability by quantifying proxy uncertainty and synthesizing information across archives @ AWI Glaciology @ AWI ICEDRILL Ice drill Polar Terrestrial Environmental Systems @ AWI Space-time structure of climate change @ AWI |
spellingShingle |
AWI_ECUS AWI_Envi AWI_Glac AWI_SPACE B41 B50 East Antarctica Estimating climate variability by quantifying proxy uncertainty and synthesizing information across archives @ AWI Glaciology @ AWI ICEDRILL Ice drill Polar Terrestrial Environmental Systems @ AWI Space-time structure of climate change @ AWI Laepple, Thomas Münch, Thomas Casado, Mathieu Hörhold, Maria Landais, Amaelle Kipfstuhl, Sepp Compilation of stable isotope data from East Antarctic snow pits and firn cores |
topic_facet |
AWI_ECUS AWI_Envi AWI_Glac AWI_SPACE B41 B50 East Antarctica Estimating climate variability by quantifying proxy uncertainty and synthesizing information across archives @ AWI Glaciology @ AWI ICEDRILL Ice drill Polar Terrestrial Environmental Systems @ AWI Space-time structure of climate change @ AWI |
description |
Stable water isotopes in polar ice provide a wealth of information about past climate evolution. Snow-pit studies allow us to relate observed weather and climate conditions to the measured isotope variations in the snow. They therefore offer the possibility to test our understanding of how isotope signals are formed and stored in firn and ice. As stable water isotopes in the snowfall are strongly correlated to air temperature, isotopes in the near-surface snow are thought to record the seasonal cycle at a given site. Accordingly, the number of seasonal cycles observed over a given depth should depend on the accumulation rate of snow. However, snow-pit studies from different accumulation conditions in East Antarctica reported similar isotopic variability and comparable apparent cycles in the d18 O and dD profiles with typical wavelengths of ~ 20cm. These observations are unexpected as the accumulation rates strongly differ between the sites, ranging from 20 to 80mm w.e. yr -1 (~ 6-21cm of snow per year). Various mechanism have been proposed to explain the isotopic variations individually at each site; however, none of these is consistent with the similarity of the different profiles independent of the local accumulation conditions. Here, we systematically analyse the properties and origins of isotopic variations in high-resolution firn profiles from eight East Antarctic sites. First, we confirm the suggested cycle length (mean distance between peaks) of ~ 20cm by counting the isotopic maxima. Spectral analysis further shows a strong similarity between the sites but indicates no dominant periodic features. Furthermore, the apparent cycle length increases with depth for most East Antarctic sites, which is inconsistent with burial and compression of a regular seasonal cycle. We show that these results can be explained by isotopic diffusion acting on a noise-dominated isotope signal. The firn diffusion length is rather stable across the Antarctic Plateau and thus leads to similar power spectral densities of the ... |
format |
Dataset |
author |
Laepple, Thomas Münch, Thomas Casado, Mathieu Hörhold, Maria Landais, Amaelle Kipfstuhl, Sepp |
author_facet |
Laepple, Thomas Münch, Thomas Casado, Mathieu Hörhold, Maria Landais, Amaelle Kipfstuhl, Sepp |
author_sort |
Laepple, Thomas |
title |
Compilation of stable isotope data from East Antarctic snow pits and firn cores |
title_short |
Compilation of stable isotope data from East Antarctic snow pits and firn cores |
title_full |
Compilation of stable isotope data from East Antarctic snow pits and firn cores |
title_fullStr |
Compilation of stable isotope data from East Antarctic snow pits and firn cores |
title_full_unstemmed |
Compilation of stable isotope data from East Antarctic snow pits and firn cores |
title_sort |
compilation of stable isotope data from east antarctic snow pits and firn cores |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.883787 https://doi.org/10.1594/PANGAEA.883787 |
op_coverage |
MEDIAN LATITUDE: -75.004905 * MEDIAN LONGITUDE: 0.073845 * SOUTH-BOUND LATITUDE: -75.009110 * WEST-BOUND LONGITUDE: 0.067900 * NORTH-BOUND LATITUDE: -75.000700 * EAST-BOUND LONGITUDE: 0.079790 |
long_lat |
ENVELOPE(0.067900,0.079790,-75.000700,-75.009110) |
geographic |
Antarctic The Antarctic East Antarctica |
geographic_facet |
Antarctic The Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica The Cryosphere |
op_source |
Supplement to: Laepple, Thomas; Münch, Thomas; Casado, Mathieu; Hörhold, Maria; Landais, Amaelle; Kipfstuhl, Sepp (2018): On the similarity and apparent cycles of isotopic variations in East Antarctic snow pits. The Cryosphere, 12(1), 169-187, https://doi.org/10.5194/tc-12-169-2018 |
op_relation |
Casado, Mathieu; Landais, Amaelle; Picard, Ghislain; Münch, Thomas; Laepple, Thomas; Stenni, Barbara; Dreossi, Giuliano; Ekaykin, Alexey A; Arnaud, Laurent; Genthon, Christophe; Touzeau, Alexandra; Masson-Delmotte, Valerie; Jouzel, Jean (2017): Stable isotope record from snow pit DomeC_DCoxy5. PANGAEA, https://doi.org/10.1594/PANGAEA.883936 Casado, Mathieu; Landais, Amaelle; Picard, Ghislain; Münch, Thomas; Laepple, Thomas; Stenni, Barbara; Dreossi, Giuliano; Ekaykin, Alexey A; Arnaud, Laurent; Genthon, Christophe; Touzeau, Alexandra; Masson-Delmotte, Valerie; Jouzel, Jean (2017): Stable isotope record from snow pit DomeC_DCoxy80. PANGAEA, https://doi.org/10.1594/PANGAEA.883937 Ekaykin, Alexey A; Kozachek, A V; Lipenkov, Vladimir Ya; Shibaev, Yu A (2017): Stable isotope record from snow pit Vostok_VK56. PANGAEA, https://doi.org/10.1594/PANGAEA.883950 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_ST30. PANGAEA, https://doi.org/10.1594/PANGAEA.883946 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_ST61. PANGAEA, https://doi.org/10.1594/PANGAEA.883947 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_ST73. PANGAEA, https://doi.org/10.1594/PANGAEA.883948 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_VK14. PANGAEA, https://doi.org/10.1594/PANGAEA.883949 Hoshina, Yu; Fujita, K; Nakazawa, Fumio; Iizuka, Yoshinori; Miyake, Takayuki; Hirabayashi, Motohiro; Kuramoto, Takayuki; Fujita, Shuji; Motoyama, Hideaki (2017): Stable isotope record from snow pit JASE_DF. PANGAEA, https://doi.org/10.1594/PANGAEA.883940 Hoshina, Yu; Fujita, K; Nakazawa, Fumio; Iizuka, Yoshinori; Miyake, Takayuki; Hirabayashi, Motohiro; Kuramoto, Takayuki; Fujita, Shuji; Motoyama, Hideaki (2017): Stable isotope record from snow pit JASE_DK. PANGAEA, https://doi.org/10.1594/PANGAEA.883941 Hoshina, Yu; Fujita, K; Nakazawa, Fumio; Iizuka, Yoshinori; Miyake, Takayuki; Hirabayashi, Motohiro; Kuramoto, Takayuki; Fujita, Shuji; Motoyama, Hideaki (2017): Stable isotope record from snow pit JASE_MP. PANGAEA, https://doi.org/10.1594/PANGAEA.883942 Jouzel, Jean; Merlivat, Liliane; Petit, Jean-Robert; Lorius, C (2017): Stable isotope record from snow pit South_Pole_S78C. PANGAEA, https://doi.org/10.1594/PANGAEA.883943 Jouzel, Jean; Merlivat, Liliane; Petit, Jean-Robert; Lorius, C (2017): Stable isotope record from snow pit South_Pole_S78P. PANGAEA, https://doi.org/10.1594/PANGAEA.883944 Touzeau, Alexandra; Landais, Amaelle; Stenni, Barbara; Uemura, Ryu; Fukui, Kotaro; Fujita, Shuji; Guilbaud, Sarah; Ekaykin, Alexey A; Casado, Mathieu; Barkan, Eugeni; Luz, Boaz; Magand, Olivier; Teste, Grégory; Le Meur, Emmanuel; Baroni, Mélanie; Savarino, Joël; Bourgeois, Ilann; Risi, Camille (2017): Stable isotope record from snow pit DomeC_Vanish12. PANGAEA, https://doi.org/10.1594/PANGAEA.883938 Touzeau, Alexandra; Landais, Amaelle; Stenni, Barbara; Uemura, Ryu; Fukui, Kotaro; Fujita, Shuji; Guilbaud, Sarah; Ekaykin, Alexey A; Casado, Mathieu; Barkan, Eugeni; Luz, Boaz; Magand, Olivier; Teste, Grégory; Le Meur, Emmanuel; Baroni, Mélanie; Savarino, Joël; Bourgeois, Ilann; Risi, Camille (2017): Stable isotope record from snow pit ITASE_S2. PANGAEA, https://doi.org/10.1594/PANGAEA.883939 Whitlow, Sallie I; Mayewski, Paul Andrew; Dibb, J E; Witlow, S (2017): Stable isotope record from snow pit South_Pole_SP92. PANGAEA, https://doi.org/10.1594/PANGAEA.883945 https://doi.pangaea.de/10.1594/PANGAEA.883787 https://doi.org/10.1594/PANGAEA.883787 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.883787 https://doi.org/10.5194/tc-12-169-2018 https://doi.org/10.1594/PANGAEA.883936 https://doi.org/10.1594/PANGAEA.883937 https://doi.org/10.1594/PANGAEA.883950 https://doi.org/10.1594/PANGAEA.883946 https://d |
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1766206610717278208 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.883787 2023-05-15T13:44:47+02:00 Compilation of stable isotope data from East Antarctic snow pits and firn cores Laepple, Thomas Münch, Thomas Casado, Mathieu Hörhold, Maria Landais, Amaelle Kipfstuhl, Sepp MEDIAN LATITUDE: -75.004905 * MEDIAN LONGITUDE: 0.073845 * SOUTH-BOUND LATITUDE: -75.009110 * WEST-BOUND LONGITUDE: 0.067900 * NORTH-BOUND LATITUDE: -75.000700 * EAST-BOUND LONGITUDE: 0.079790 2017-12-05 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.883787 https://doi.org/10.1594/PANGAEA.883787 en eng PANGAEA Casado, Mathieu; Landais, Amaelle; Picard, Ghislain; Münch, Thomas; Laepple, Thomas; Stenni, Barbara; Dreossi, Giuliano; Ekaykin, Alexey A; Arnaud, Laurent; Genthon, Christophe; Touzeau, Alexandra; Masson-Delmotte, Valerie; Jouzel, Jean (2017): Stable isotope record from snow pit DomeC_DCoxy5. PANGAEA, https://doi.org/10.1594/PANGAEA.883936 Casado, Mathieu; Landais, Amaelle; Picard, Ghislain; Münch, Thomas; Laepple, Thomas; Stenni, Barbara; Dreossi, Giuliano; Ekaykin, Alexey A; Arnaud, Laurent; Genthon, Christophe; Touzeau, Alexandra; Masson-Delmotte, Valerie; Jouzel, Jean (2017): Stable isotope record from snow pit DomeC_DCoxy80. PANGAEA, https://doi.org/10.1594/PANGAEA.883937 Ekaykin, Alexey A; Kozachek, A V; Lipenkov, Vladimir Ya; Shibaev, Yu A (2017): Stable isotope record from snow pit Vostok_VK56. PANGAEA, https://doi.org/10.1594/PANGAEA.883950 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_ST30. PANGAEA, https://doi.org/10.1594/PANGAEA.883946 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_ST61. PANGAEA, https://doi.org/10.1594/PANGAEA.883947 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_ST73. PANGAEA, https://doi.org/10.1594/PANGAEA.883948 Ekaykin, Alexey A; Lipenkov, Vladimir Ya; Barkov, Nartsiss I; Petit, Jean-Robert; Masson-Delmotte, Valerie (2017): Stable isotope record from snow pit Vostok_VK14. PANGAEA, https://doi.org/10.1594/PANGAEA.883949 Hoshina, Yu; Fujita, K; Nakazawa, Fumio; Iizuka, Yoshinori; Miyake, Takayuki; Hirabayashi, Motohiro; Kuramoto, Takayuki; Fujita, Shuji; Motoyama, Hideaki (2017): Stable isotope record from snow pit JASE_DF. PANGAEA, https://doi.org/10.1594/PANGAEA.883940 Hoshina, Yu; Fujita, K; Nakazawa, Fumio; Iizuka, Yoshinori; Miyake, Takayuki; Hirabayashi, Motohiro; Kuramoto, Takayuki; Fujita, Shuji; Motoyama, Hideaki (2017): Stable isotope record from snow pit JASE_DK. PANGAEA, https://doi.org/10.1594/PANGAEA.883941 Hoshina, Yu; Fujita, K; Nakazawa, Fumio; Iizuka, Yoshinori; Miyake, Takayuki; Hirabayashi, Motohiro; Kuramoto, Takayuki; Fujita, Shuji; Motoyama, Hideaki (2017): Stable isotope record from snow pit JASE_MP. PANGAEA, https://doi.org/10.1594/PANGAEA.883942 Jouzel, Jean; Merlivat, Liliane; Petit, Jean-Robert; Lorius, C (2017): Stable isotope record from snow pit South_Pole_S78C. PANGAEA, https://doi.org/10.1594/PANGAEA.883943 Jouzel, Jean; Merlivat, Liliane; Petit, Jean-Robert; Lorius, C (2017): Stable isotope record from snow pit South_Pole_S78P. PANGAEA, https://doi.org/10.1594/PANGAEA.883944 Touzeau, Alexandra; Landais, Amaelle; Stenni, Barbara; Uemura, Ryu; Fukui, Kotaro; Fujita, Shuji; Guilbaud, Sarah; Ekaykin, Alexey A; Casado, Mathieu; Barkan, Eugeni; Luz, Boaz; Magand, Olivier; Teste, Grégory; Le Meur, Emmanuel; Baroni, Mélanie; Savarino, Joël; Bourgeois, Ilann; Risi, Camille (2017): Stable isotope record from snow pit DomeC_Vanish12. PANGAEA, https://doi.org/10.1594/PANGAEA.883938 Touzeau, Alexandra; Landais, Amaelle; Stenni, Barbara; Uemura, Ryu; Fukui, Kotaro; Fujita, Shuji; Guilbaud, Sarah; Ekaykin, Alexey A; Casado, Mathieu; Barkan, Eugeni; Luz, Boaz; Magand, Olivier; Teste, Grégory; Le Meur, Emmanuel; Baroni, Mélanie; Savarino, Joël; Bourgeois, Ilann; Risi, Camille (2017): Stable isotope record from snow pit ITASE_S2. PANGAEA, https://doi.org/10.1594/PANGAEA.883939 Whitlow, Sallie I; Mayewski, Paul Andrew; Dibb, J E; Witlow, S (2017): Stable isotope record from snow pit South_Pole_SP92. PANGAEA, https://doi.org/10.1594/PANGAEA.883945 https://doi.pangaea.de/10.1594/PANGAEA.883787 https://doi.org/10.1594/PANGAEA.883787 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Laepple, Thomas; Münch, Thomas; Casado, Mathieu; Hörhold, Maria; Landais, Amaelle; Kipfstuhl, Sepp (2018): On the similarity and apparent cycles of isotopic variations in East Antarctic snow pits. The Cryosphere, 12(1), 169-187, https://doi.org/10.5194/tc-12-169-2018 AWI_ECUS AWI_Envi AWI_Glac AWI_SPACE B41 B50 East Antarctica Estimating climate variability by quantifying proxy uncertainty and synthesizing information across archives @ AWI Glaciology @ AWI ICEDRILL Ice drill Polar Terrestrial Environmental Systems @ AWI Space-time structure of climate change @ AWI Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.883787 https://doi.org/10.5194/tc-12-169-2018 https://doi.org/10.1594/PANGAEA.883936 https://doi.org/10.1594/PANGAEA.883937 https://doi.org/10.1594/PANGAEA.883950 https://doi.org/10.1594/PANGAEA.883946 https://d 2023-01-20T07:34:04Z Stable water isotopes in polar ice provide a wealth of information about past climate evolution. Snow-pit studies allow us to relate observed weather and climate conditions to the measured isotope variations in the snow. They therefore offer the possibility to test our understanding of how isotope signals are formed and stored in firn and ice. As stable water isotopes in the snowfall are strongly correlated to air temperature, isotopes in the near-surface snow are thought to record the seasonal cycle at a given site. Accordingly, the number of seasonal cycles observed over a given depth should depend on the accumulation rate of snow. However, snow-pit studies from different accumulation conditions in East Antarctica reported similar isotopic variability and comparable apparent cycles in the d18 O and dD profiles with typical wavelengths of ~ 20cm. These observations are unexpected as the accumulation rates strongly differ between the sites, ranging from 20 to 80mm w.e. yr -1 (~ 6-21cm of snow per year). Various mechanism have been proposed to explain the isotopic variations individually at each site; however, none of these is consistent with the similarity of the different profiles independent of the local accumulation conditions. Here, we systematically analyse the properties and origins of isotopic variations in high-resolution firn profiles from eight East Antarctic sites. First, we confirm the suggested cycle length (mean distance between peaks) of ~ 20cm by counting the isotopic maxima. Spectral analysis further shows a strong similarity between the sites but indicates no dominant periodic features. Furthermore, the apparent cycle length increases with depth for most East Antarctic sites, which is inconsistent with burial and compression of a regular seasonal cycle. We show that these results can be explained by isotopic diffusion acting on a noise-dominated isotope signal. The firn diffusion length is rather stable across the Antarctic Plateau and thus leads to similar power spectral densities of the ... Dataset Antarc* Antarctic Antarctica East Antarctica The Cryosphere PANGAEA - Data Publisher for Earth & Environmental Science Antarctic The Antarctic East Antarctica ENVELOPE(0.067900,0.079790,-75.000700,-75.009110) |