Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways
Proxy reconstructions of the mid-Piacenzian warm period (mPWP, between 3.264 and 3.025 Ma) suggest terrestrial temperatures were much warmer in the northern high latitudes (55 degrees-90 degrees N, referred to as NHL) than present-day. Climate models participating in the Pliocene Model Intercomparis...
Published in: | Earth and Planetary Science Letters |
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Language: | English |
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Online Access: | https://doi.org/10.1016/j.epsl.2017.03.006 |
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ftncar:oai:drupal-site.org:articles_19761 2023-09-05T13:16:41+02:00 Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways Feng, Ran (author) Otto-Bliesner, Bette L. (author) Fletcher, Tamara L. (author) Tabor, Clay R. (author) Ballantyne, Ashley P. (author) Brady, Esther C. (author) 2017-05 https://doi.org/10.1016/j.epsl.2017.03.006 en eng Earth and Planetary Science Letters--Earth and Planetary Science Letters--0012821X articles:19761 ark:/85065/d7251m3n doi:10.1016/j.epsl.2017.03.006 Copyright 2017 Elsevier. article Text 2017 ftncar https://doi.org/10.1016/j.epsl.2017.03.006 2023-08-14T18:47:35Z Proxy reconstructions of the mid-Piacenzian warm period (mPWP, between 3.264 and 3.025 Ma) suggest terrestrial temperatures were much warmer in the northern high latitudes (55 degrees-90 degrees N, referred to as NHL) than present-day. Climate models participating in the Pliocene Model Intercomparison Project Phase 1 (PlioMIP1) tend to underestimate this warmth. For instance, the underestimate is similar to 10 degrees C on average across NHL and up to 17 degrees C in the Canadian Arctic region in the Community Climate System Model version 4 (CCSM4). Here, we explore potential mPWP climate forcings that might contribute to this mPWP mismatch. We carry out seven experiments to assess terrestrial temperature responses to Pliocene Arctic gateway closure, variations in CO2 level, and orbital forcing at millennial time scale. PLR-1418411 Article in Journal/Newspaper Arctic Arctic Ocean OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Arctic Ocean Earth and Planetary Science Letters 466 129 138 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Proxy reconstructions of the mid-Piacenzian warm period (mPWP, between 3.264 and 3.025 Ma) suggest terrestrial temperatures were much warmer in the northern high latitudes (55 degrees-90 degrees N, referred to as NHL) than present-day. Climate models participating in the Pliocene Model Intercomparison Project Phase 1 (PlioMIP1) tend to underestimate this warmth. For instance, the underestimate is similar to 10 degrees C on average across NHL and up to 17 degrees C in the Canadian Arctic region in the Community Climate System Model version 4 (CCSM4). Here, we explore potential mPWP climate forcings that might contribute to this mPWP mismatch. We carry out seven experiments to assess terrestrial temperature responses to Pliocene Arctic gateway closure, variations in CO2 level, and orbital forcing at millennial time scale. PLR-1418411 |
author2 |
Feng, Ran (author) Otto-Bliesner, Bette L. (author) Fletcher, Tamara L. (author) Tabor, Clay R. (author) Ballantyne, Ashley P. (author) Brady, Esther C. (author) |
format |
Article in Journal/Newspaper |
title |
Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways |
spellingShingle |
Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways |
title_short |
Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways |
title_full |
Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways |
title_fullStr |
Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways |
title_full_unstemmed |
Amplified Late Pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed Arctic Ocean gateways |
title_sort |
amplified late pliocene terrestrial warmth in northern high latitudes from greater radiative forcing and closed arctic ocean gateways |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.epsl.2017.03.006 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
Earth and Planetary Science Letters--Earth and Planetary Science Letters--0012821X articles:19761 ark:/85065/d7251m3n doi:10.1016/j.epsl.2017.03.006 |
op_rights |
Copyright 2017 Elsevier. |
op_doi |
https://doi.org/10.1016/j.epsl.2017.03.006 |
container_title |
Earth and Planetary Science Letters |
container_volume |
466 |
container_start_page |
129 |
op_container_end_page |
138 |
_version_ |
1776198180735549440 |