Item talk:Q239938
From geokb
{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "Article", "additionalType": "Journal Article", "name": "Enhanced Arctic amplification began at the Mid-Brunhes Event 430,000 years ago", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "70191499", "url": "https://pubs.usgs.gov/publication/70191499" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70191499 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1038/s41598-017-13821-2", "url": "https://doi.org/10.1038/s41598-017-13821-2" } ], "journal": { "@type": "Periodical", "name": "Scientific Reports", "volumeNumber": "7", "issueNumber": null }, "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "Scientific Reports" } ], "datePublished": "2017", "dateModified": "2017-11-15", "abstract": "Arctic Ocean temperatures influence ecosystems, sea ice, species diversity, biogeochemical cycling, seafloor methane stability, deep-sea circulation, and CO2\u00a0cycling. Today's Arctic Ocean and surrounding regions are undergoing climatic changes often attributed to \"Arctic amplification\" - that is, amplified warming in Arctic regions due to sea-ice loss and other processes, relative to global mean temperature. However, the long-term evolution of Arctic amplification is poorly constrained due to lack of continuous sediment proxy records of Arctic Ocean temperature, sea ice cover and circulation. Here we present reconstructions of Arctic Ocean intermediate depth water (AIW) temperatures and sea-ice cover spanning the last ~ 1.5 million years (Ma) of orbitally-paced glacial/interglacial cycles (GIC). Using Mg/Ca paleothermometry of the ostracode Krithe and sea-ice planktic and benthic indicator species, we suggest that the Mid-Brunhes Event (MBE), a major climate transition ~ 400-350 ka, involved fundamental changes in AIW temperature and sea-ice variability. Enhanced Arctic amplification at the MBE suggests a major climate threshold was reached at ~ 400 ka involving Atlantic Meridional Overturning Circulation (AMOC), inflowing warm Atlantic Layer water, ice sheet, sea-ice and ice-shelf feedbacks, and sensitivity to higher post-MBE interglacial CO2\u00a0concentrations.", "description": "14475; 6 p.", "publisher": { "@type": "Organization", "name": "Springer" }, "author": [ { "@type": "Person", "name": "Cronin, Thomas M. tcronin@usgs.gov", "givenName": "Thomas M.", "familyName": "Cronin", "email": "tcronin@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0002-2643-0979", "url": "https://orcid.org/0000-0002-2643-0979" }, "affiliation": [ { "@type": "Organization", "name": "Eastern Geology and Paleoclimate Science Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" }, { "@type": "Organization", "name": "Florence Bascom Geoscience Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" } ] }, { "@type": "Person", "name": "Dwyer, Gary S.", "givenName": "Gary S.", "familyName": "Dwyer" }, { "@type": "Person", "name": "Caverly, Emma", "givenName": "Emma", "familyName": "Caverly" }, { "@type": "Person", "name": "Farmer, Jesse", "givenName": "Jesse", "familyName": "Farmer" }, { "@type": "Person", "name": "DeNinno, Lauren H.", "givenName": "Lauren H.", "familyName": "DeNinno" }, { "@type": "Person", "name": "Rodriguez-Lazaro, Julio", "givenName": "Julio", "familyName": "Rodriguez-Lazaro" }, { "@type": "Person", "name": "Gemery, Laura lgemery@usgs.gov", "givenName": "Laura", "familyName": "Gemery", "email": "lgemery@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0003-1966-8732", "url": "https://orcid.org/0000-0003-1966-8732" }, "affiliation": [ { "@type": "Organization", "name": "Eastern Geology and Paleoclimate Science Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" }, { "@type": "Organization", "name": "Florence Bascom Geoscience Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" } ] } ], "funder": [ { "@type": "Organization", "name": "Eastern Geology and Paleoclimate Science Center", "url": "https://www.usgs.gov/centers/florence-bascom-geoscience-center" } ], "spatialCoverage": [ { "@type": "Place", "additionalType": "unknown", "name": "Arctic Ocean" } ] }, "OpenAlex": { "abstract_inverted_index": { "Arctic": [ 0, 20, 40, 59, 73, 86, 147 ], "Ocean": [ 1, 21, 74, 87 ], "temperatures": [ 2, 92 ], "influence": [ 3 ], "ecosystems,": [ 4 ], "sea": [ 5, 76 ], "ice,": [ 6 ], "species": [ 7 ], "diversity,": [ 8 ], "biogeochemical": [ 9 ], "cycling,": [ 10 ], "seafloor": [ 11 ], "methane": [ 12 ], "stability,": [ 13 ], "deep-sea": [ 14 ], "circulation,": [ 15 ], "and": [ 16, 22, 46, 79, 93, 116, 119, 143, 177, 180 ], "CO2": [ 17, 186 ], "cycling.": [ 18 ], "Today's": [ 19 ], "surrounding": [ 23 ], "regions": [ 24, 41 ], "are": [ 25 ], "undergoing": [ 26 ], "climatic": [ 27 ], "changes": [ 28, 139 ], "often": [ 29 ], "attributed": [ 30 ], "to": [ 31, 43, 50, 65, 182 ], "\"Arctic": [ 32 ], "amplification\"": [ 33 ], "-": [ 34 ], "that": [ 35, 125 ], "is,": [ 36 ], "amplified": [ 37 ], "warming": [ 38 ], "in": [ 39, 140 ], "due": [ 42, 64 ], "sea-ice": [ 44, 94, 117, 144, 176 ], "loss": [ 45 ], "other": [ 47 ], "processes,": [ 48 ], "relative": [ 49 ], "global": [ 51 ], "mean": [ 52 ], "temperature.": [ 53 ], "However,": [ 54 ], "the": [ 55, 97, 113, 126, 150 ], "long-term": [ 56 ], "evolution": [ 57 ], "of": [ 58, 67, 72, 85, 104, 112 ], "amplification": [ 60, 148 ], "is": [ 61 ], "poorly": [ 62 ], "constrained": [ 63 ], "lack": [ 66 ], "continuous": [ 68 ], "sediment": [ 69 ], "proxy": [ 70 ], "records": [ 71 ], "temperature,": [ 75 ], "ice": [ 77, 174 ], "cover": [ 78, 95 ], "circulation.": [ 80 ], "Here": [ 81 ], "we": [ 82, 123 ], "present": [ 83 ], "reconstructions": [ 84 ], "intermediate": [ 88 ], "depth": [ 89 ], "water": [ 90 ], "(AIW)": [ 91 ], "spanning": [ 96 ], "last": [ 98 ], "~": [ 99, 134, 160 ], "1.5": [ 100 ], "million": [ 101 ], "years": [ 102 ], "(Ma)": [ 103 ], "orbitally-paced": [ 105 ], "glacial/interglacial": [ 106 ], "cycles": [ 107 ], "(GIC).": [ 108 ], "Using": [ 109 ], "Mg/Ca": [ 110 ], "paleothermometry": [ 111 ], "ostracode": [ 114 ], "Krithe": [ 115 ], "planktic": [ 118 ], "benthic": [ 120 ], "indicator": [ 121 ], "species,": [ 122 ], "suggest": [ 124 ], "Mid-Brunhes": [ 127 ], "Event": [ 128 ], "(MBE),": [ 129 ], "a": [ 130, 153 ], "major": [ 131, 154 ], "climate": [ 132, 155 ], "transition": [ 133 ], "400-350": [ 135 ], "ka,": [ 136 ], "involved": [ 137 ], "fundamental": [ 138 ], "AIW": [ 141 ], "temperature": [ 142 ], "variability.": [ 145 ], "Enhanced": [ 146 ], "at": [ 149, 159 ], "MBE": [ 151 ], "suggests": [ 152 ], "threshold": [ 156 ], "was": [ 157 ], "reached": [ 158 ], "400": [ 161 ], "ka": [ 162 ], "involving": [ 163 ], "Atlantic": [ 164, 171 ], "Meridional": [ 165 ], "Overturning": [ 166 ], "Circulation": [ 167 ], "(AMOC),": [ 168 ], "inflowing": [ 169 ], "warm": [ 170 ], "Layer": [ 172 ], "water,": [ 173 ], "sheet,": [ 175 ], "ice-shelf": [ 178 ], "feedbacks,": [ 179 ], "sensitivity": [ 181 ], "higher": [ 183 ], "post-MBE": [ 184 ], "interglacial": [ 185 ], "concentrations.": [ 187 ] }, "apc_list": { "value": 1890, "currency": "EUR", "value_usd": 2190, "provenance": "doaj" }, "apc_paid": { "value": 1890, "currency": "EUR", "value_usd": 2190, "provenance": "doaj" }, "authorships": [ { "author_position": "first", "author": { "id": "https://openalex.org/A5026251160", "display_name": "Thomas M. 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