Arctic hydroclimate variability during the last 2000 years

current understanding and research challenges

Hans W. Linderholm, Marie Nicolle, Pierre Francus, Konrad Gajewski, Samuli Helama, Atte Korhola, Olga Solomina, Zicheng Yu, Peng Zhang, William J. D'Andrea, Maxime Debret, Dmitry V. Divine, Bjorn E. Gunnarson, Neil J. Loader, Nicolas Massei, Kristina Seftigen, Elizabeth K. Thomas, Johannes Werner, Sofia Andersson, Annika Berntsson & 4 muut Tomi P. Luoto, Liisa Nevalainen, Saija Saarni, Minna Valiranta

Tutkimustuotos: ArtikkelijulkaisuKatsausartikkeliTieteellinenvertaisarvioitu

Kuvaus

Reanalysis data show an increasing trend in Arctic precipitation over the 20th century, but changes are not homogenous across seasons or space. The observed hydro-climate changes are expected to continue and possibly accelerate in the coming century, not only affecting pan-Arctic natural ecosystems and human activities, but also lower latitudes through the atmospheric and ocean circulations. However, a lack of spatiotemporal observational data makes reliable quantification of Arctic hydroclimate change difficult, especially in a long-term context. To understand Arctic hydroclimate and its variability prior to the instrumental record, climate proxy records are needed. The purpose of this review is to summarise the current understanding of Arctic hydroclimate during the past 2000 years. First, the paper reviews the main natural archives and proxies used to infer past hydroclimate variations in this remote region and outlines the difficulty of disentangling the moisture from the temperature signal in these records. Second, a comparison of two sets of hydroclimate records covering the Common Era from two data-rich regions, North America and Fennoscandia, reveals inter- and intra-regional differences. Third, building on earlier work, this paper shows the potential for providing a high-resolution hydroclimate reconstruction for the Arctic and a comparison with last-millennium simulations from fully coupled climate models. In general, hydroclimate proxies and simulations indicate that the Medieval Climate Anomaly tends to have been wetter than the Little Ice Age (LIA), but there are large regional differences. However, the regional coverage of the proxy data is inadequate, with distinct data gaps in most of Eurasia and parts of North America, making robust assessments for the whole Arctic impossible at present. To fully assess pan-Arctic hydroclimate variability for the last 2 millennia, additional proxy records are required.
Alkuperäiskielienglanti
LehtiClimate of the Past
Vuosikerta14
Numero4
Sivut473-514
Sivumäärä42
ISSN1814-9324
DOI - pysyväislinkit
TilaJulkaistu - 10 huhtikuuta 2018
OKM-julkaisutyyppiA2 Katsausartikkeli tieteellisessä aikakauslehdessä

Tieteenalat

  • 1171 Geotieteet
  • 1172 Ympäristötiede

Lainaa tätä

Linderholm, Hans W. ; Nicolle, Marie ; Francus, Pierre ; Gajewski, Konrad ; Helama, Samuli ; Korhola, Atte ; Solomina, Olga ; Yu, Zicheng ; Zhang, Peng ; D'Andrea, William J. ; Debret, Maxime ; Divine, Dmitry V. ; Gunnarson, Bjorn E. ; Loader, Neil J. ; Massei, Nicolas ; Seftigen, Kristina ; Thomas, Elizabeth K. ; Werner, Johannes ; Andersson, Sofia ; Berntsson, Annika ; Luoto, Tomi P. ; Nevalainen, Liisa ; Saarni, Saija ; Valiranta, Minna. / Arctic hydroclimate variability during the last 2000 years : current understanding and research challenges. Julkaisussa: Climate of the Past. 2018 ; Vuosikerta 14, Nro 4. Sivut 473-514.
@article{5867a41217f544bcb8d0228740e9e85b,
title = "Arctic hydroclimate variability during the last 2000 years: current understanding and research challenges",
abstract = "Reanalysis data show an increasing trend in Arctic precipitation over the 20th century, but changes are not homogenous across seasons or space. The observed hydro-climate changes are expected to continue and possibly accelerate in the coming century, not only affecting pan-Arctic natural ecosystems and human activities, but also lower latitudes through the atmospheric and ocean circulations. However, a lack of spatiotemporal observational data makes reliable quantification of Arctic hydroclimate change difficult, especially in a long-term context. To understand Arctic hydroclimate and its variability prior to the instrumental record, climate proxy records are needed. The purpose of this review is to summarise the current understanding of Arctic hydroclimate during the past 2000 years. First, the paper reviews the main natural archives and proxies used to infer past hydroclimate variations in this remote region and outlines the difficulty of disentangling the moisture from the temperature signal in these records. Second, a comparison of two sets of hydroclimate records covering the Common Era from two data-rich regions, North America and Fennoscandia, reveals inter- and intra-regional differences. Third, building on earlier work, this paper shows the potential for providing a high-resolution hydroclimate reconstruction for the Arctic and a comparison with last-millennium simulations from fully coupled climate models. In general, hydroclimate proxies and simulations indicate that the Medieval Climate Anomaly tends to have been wetter than the Little Ice Age (LIA), but there are large regional differences. However, the regional coverage of the proxy data is inadequate, with distinct data gaps in most of Eurasia and parts of North America, making robust assessments for the whole Arctic impossible at present. To fully assess pan-Arctic hydroclimate variability for the last 2 millennia, additional proxy records are required.",
keywords = "NORTH-ATLANTIC OSCILLATION, HOLOCENE CLIMATE-CHANGE, STABLE CARBON ISOTOPES, LAKE SEDIMENT RECORD, TREE-RING CELLULOSE, SOUTHWEST YUKON-TERRITORY, TESTATE AMEBAS ANALYSIS, GLACIER MASS-BALANCE, GREENLAND ICE-SHEET, PEAT BOG GROWTH, 1171 Geosciences, 1172 Environmental sciences",
author = "Linderholm, {Hans W.} and Marie Nicolle and Pierre Francus and Konrad Gajewski and Samuli Helama and Atte Korhola and Olga Solomina and Zicheng Yu and Peng Zhang and D'Andrea, {William J.} and Maxime Debret and Divine, {Dmitry V.} and Gunnarson, {Bjorn E.} and Loader, {Neil J.} and Nicolas Massei and Kristina Seftigen and Thomas, {Elizabeth K.} and Johannes Werner and Sofia Andersson and Annika Berntsson and Luoto, {Tomi P.} and Liisa Nevalainen and Saija Saarni and Minna Valiranta",
year = "2018",
month = "4",
day = "10",
doi = "10.5194/cp-14-473-2018",
language = "English",
volume = "14",
pages = "473--514",
journal = "Climate of the Past",
issn = "1814-9324",
publisher = "COPERNICUS GESELLSCHAFT MBH",
number = "4",

}

Linderholm, HW, Nicolle, M, Francus, P, Gajewski, K, Helama, S, Korhola, A, Solomina, O, Yu, Z, Zhang, P, D'Andrea, WJ, Debret, M, Divine, DV, Gunnarson, BE, Loader, NJ, Massei, N, Seftigen, K, Thomas, EK, Werner, J, Andersson, S, Berntsson, A, Luoto, TP, Nevalainen, L, Saarni, S & Valiranta, M 2018, 'Arctic hydroclimate variability during the last 2000 years: current understanding and research challenges', Climate of the Past, Vuosikerta 14, Nro 4, Sivut 473-514. https://doi.org/10.5194/cp-14-473-2018

Arctic hydroclimate variability during the last 2000 years : current understanding and research challenges. / Linderholm, Hans W.; Nicolle, Marie; Francus, Pierre; Gajewski, Konrad; Helama, Samuli; Korhola, Atte; Solomina, Olga; Yu, Zicheng; Zhang, Peng; D'Andrea, William J.; Debret, Maxime; Divine, Dmitry V.; Gunnarson, Bjorn E.; Loader, Neil J.; Massei, Nicolas; Seftigen, Kristina; Thomas, Elizabeth K.; Werner, Johannes; Andersson, Sofia; Berntsson, Annika; Luoto, Tomi P.; Nevalainen, Liisa; Saarni, Saija; Valiranta, Minna.

julkaisussa: Climate of the Past, Vuosikerta 14, Nro 4, 10.04.2018, s. 473-514.

Tutkimustuotos: ArtikkelijulkaisuKatsausartikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Arctic hydroclimate variability during the last 2000 years

T2 - current understanding and research challenges

AU - Linderholm, Hans W.

AU - Nicolle, Marie

AU - Francus, Pierre

AU - Gajewski, Konrad

AU - Helama, Samuli

AU - Korhola, Atte

AU - Solomina, Olga

AU - Yu, Zicheng

AU - Zhang, Peng

AU - D'Andrea, William J.

AU - Debret, Maxime

AU - Divine, Dmitry V.

AU - Gunnarson, Bjorn E.

AU - Loader, Neil J.

AU - Massei, Nicolas

AU - Seftigen, Kristina

AU - Thomas, Elizabeth K.

AU - Werner, Johannes

AU - Andersson, Sofia

AU - Berntsson, Annika

AU - Luoto, Tomi P.

AU - Nevalainen, Liisa

AU - Saarni, Saija

AU - Valiranta, Minna

PY - 2018/4/10

Y1 - 2018/4/10

N2 - Reanalysis data show an increasing trend in Arctic precipitation over the 20th century, but changes are not homogenous across seasons or space. The observed hydro-climate changes are expected to continue and possibly accelerate in the coming century, not only affecting pan-Arctic natural ecosystems and human activities, but also lower latitudes through the atmospheric and ocean circulations. However, a lack of spatiotemporal observational data makes reliable quantification of Arctic hydroclimate change difficult, especially in a long-term context. To understand Arctic hydroclimate and its variability prior to the instrumental record, climate proxy records are needed. The purpose of this review is to summarise the current understanding of Arctic hydroclimate during the past 2000 years. First, the paper reviews the main natural archives and proxies used to infer past hydroclimate variations in this remote region and outlines the difficulty of disentangling the moisture from the temperature signal in these records. Second, a comparison of two sets of hydroclimate records covering the Common Era from two data-rich regions, North America and Fennoscandia, reveals inter- and intra-regional differences. Third, building on earlier work, this paper shows the potential for providing a high-resolution hydroclimate reconstruction for the Arctic and a comparison with last-millennium simulations from fully coupled climate models. In general, hydroclimate proxies and simulations indicate that the Medieval Climate Anomaly tends to have been wetter than the Little Ice Age (LIA), but there are large regional differences. However, the regional coverage of the proxy data is inadequate, with distinct data gaps in most of Eurasia and parts of North America, making robust assessments for the whole Arctic impossible at present. To fully assess pan-Arctic hydroclimate variability for the last 2 millennia, additional proxy records are required.

AB - Reanalysis data show an increasing trend in Arctic precipitation over the 20th century, but changes are not homogenous across seasons or space. The observed hydro-climate changes are expected to continue and possibly accelerate in the coming century, not only affecting pan-Arctic natural ecosystems and human activities, but also lower latitudes through the atmospheric and ocean circulations. However, a lack of spatiotemporal observational data makes reliable quantification of Arctic hydroclimate change difficult, especially in a long-term context. To understand Arctic hydroclimate and its variability prior to the instrumental record, climate proxy records are needed. The purpose of this review is to summarise the current understanding of Arctic hydroclimate during the past 2000 years. First, the paper reviews the main natural archives and proxies used to infer past hydroclimate variations in this remote region and outlines the difficulty of disentangling the moisture from the temperature signal in these records. Second, a comparison of two sets of hydroclimate records covering the Common Era from two data-rich regions, North America and Fennoscandia, reveals inter- and intra-regional differences. Third, building on earlier work, this paper shows the potential for providing a high-resolution hydroclimate reconstruction for the Arctic and a comparison with last-millennium simulations from fully coupled climate models. In general, hydroclimate proxies and simulations indicate that the Medieval Climate Anomaly tends to have been wetter than the Little Ice Age (LIA), but there are large regional differences. However, the regional coverage of the proxy data is inadequate, with distinct data gaps in most of Eurasia and parts of North America, making robust assessments for the whole Arctic impossible at present. To fully assess pan-Arctic hydroclimate variability for the last 2 millennia, additional proxy records are required.

KW - NORTH-ATLANTIC OSCILLATION

KW - HOLOCENE CLIMATE-CHANGE

KW - STABLE CARBON ISOTOPES

KW - LAKE SEDIMENT RECORD

KW - TREE-RING CELLULOSE

KW - SOUTHWEST YUKON-TERRITORY

KW - TESTATE AMEBAS ANALYSIS

KW - GLACIER MASS-BALANCE

KW - GREENLAND ICE-SHEET

KW - PEAT BOG GROWTH

KW - 1171 Geosciences

KW - 1172 Environmental sciences

U2 - 10.5194/cp-14-473-2018

DO - 10.5194/cp-14-473-2018

M3 - Review Article

VL - 14

SP - 473

EP - 514

JO - Climate of the Past

JF - Climate of the Past

SN - 1814-9324

IS - 4

ER -