Deja
", "tags": [], "relations": {}, "dateAdded": "2010-11-07T18:11:43Z", "dateModified": "2010-11-07T18:11:45Z" } }, { "key": "BF6DA2JU", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/BF6DA2JU", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/BF6DA2JU", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/IFC9WCB9", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "BF6DA2JU", "version": 1, "parentItem": "IFC9WCB9", "itemType": "note", "note": "Deja
", "tags": [], "relations": {}, "dateAdded": "2010-11-07T18:11:16Z", "dateModified": "2010-11-07T18:11:18Z" } }, { "key": "I8BAFPUQ", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/I8BAFPUQ", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/I8BAFPUQ", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/H9CZI36N", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "I8BAFPUQ", "version": 1, "parentItem": "H9CZI36N", "itemType": "note", "note": "Deja
", "tags": [], "relations": {}, "dateAdded": "2010-11-07T18:11:04Z", "dateModified": "2010-11-07T18:11:11Z" } }, { "key": "74SJPUD2", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/74SJPUD2", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/74SJPUD2", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/CVTCSEZG", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "74SJPUD2", "version": 1, "parentItem": "CVTCSEZG", "itemType": "note", "note": "Deja
", "tags": [], "relations": {}, "dateAdded": "2010-11-07T18:10:23Z", "dateModified": "2010-11-07T18:10:26Z" } }, { "key": "ERIS7FWV", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/ERIS7FWV", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/ERIS7FWV", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/XRXNKFPF", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "ERIS7FWV", "version": 1, "parentItem": "XRXNKFPF", "itemType": "note", "note": "Deja
", "tags": [], "relations": {}, "dateAdded": "2010-11-07T18:10:12Z", "dateModified": "2010-11-07T18:10:14Z" } }, { "key": "IXC5BTCF", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/IXC5BTCF", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/IXC5BTCF", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/T5EZHBTH", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "IXC5BTCF", "version": 1, "parentItem": "T5EZHBTH", "itemType": "note", "note": "Deja
", "tags": [], "relations": {}, "dateAdded": "2010-11-07T18:10:00Z", "dateModified": "2010-11-07T18:10:03Z" } }, { "key": "T5EZHBTH", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/T5EZHBTH", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/T5EZHBTH", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "creatorSummary": "Denton et al.", "parsedDate": "1999", "numChildren": 2 }, "data": { "key": "T5EZHBTH", "version": 1, "itemType": "journalArticle", "title": "Interhemispheric Linkage of Paleoclimate during the Last Glaciation", "creators": [ { "creatorType": "author", "firstName": "George H.", "lastName": "Denton" }, { "creatorType": "author", "firstName": "Thomas V.", "lastName": "Lowell" }, { "creatorType": "author", "firstName": "Calvin J.", "lastName": "Heusser" }, { "creatorType": "author", "firstName": "Patricio I.", "lastName": "Moreno" }, { "creatorType": "author", "firstName": "Bjørn G.", "lastName": "Andersen" }, { "creatorType": "author", "firstName": "Linda E.", "lastName": "Heusser" }, { "creatorType": "author", "firstName": "Christian", "lastName": "Schlüchter" }, { "creatorType": "author", "firstName": "David R.", "lastName": "Marchant" } ], "abstractNote": "Combined glacial geologic and palynologic data from the southern Lake District, Seno Reloncaví, and Isla Grande de Chiloé in middle latitudes (40°35′-42°25′S) of the Southern Hemisphere Andes suggest (1) that full-glacial or near-full-glacial climate conditions persisted from about 29,400 to 14,550 14C yr BP in late Llanquihue time, (2) that within this late Llanquihue interval mean summer temperature was depressed 6°-8°C compared to modern values during major glacier advances into the outer moraine belt at 29,400, 26,760, 22,295-22,570, and 14,550-14,805 14C yr BP, (3) that summer temperature depression was as great during early Llanquihue as during late Llanquihue time, (4) that climate deteriorated from warmer conditions during the early part to colder conditions during the later part of middle Llanquihue time, (5) that superimposed on long-term climate deterioration are Gramineae peaks on Isla Grande de Chiloé that represent cooling at 44,520-47,110 14C yr BP (T-11), 32,105-35,764 14C yr BP (T-9), 24,895-26,019 14C yr BP (T-7), 21,430-22,774 14C yr BP (T-5), and 13,040-15,200 14C yr BP (T-3), (6) that the initial phase of the glacial/interglacial transition of the last termination involved at least two major steps, one beginning at 14,600 14C yr BP and another at 12,700-13,000 14C yr BP, and (7) that a late-glacial climate reversal of ≤ 2-3° C set in close to 12,200 14C yr BP, after an interval of near-interglacial warmth, and continued into Younger Dryas time. The late-glacial climate signal from the southern Chilean Lake District ties into that from proglacial Lago Mascardi in the nearby Argentine Andes, which shows rapid ice recession peaking at 12,400 14C yr BP, followed by a reversal of trend that culminated in Younger-Dryas-age glacier readvance at 11,400-10,200 14C yr BP. Many full- and late-glacial climate shifts in the southern Lake District match those from New Zealand at nearly the same Southern Hemisphere middle latitudes. At the last glacial maximum (LGM), snowline lowering relative to present-day values was nearly the same in the Southern Alps (875 m) and the Chilean Andes (1000 m). Particularly noteworthy are the new Younger-Dryas-age exposure dates of the Lake Misery moraines in Arthur's Pass in the Southern Alps. Moreover, pollen records from the Waikato lowlands on North Island show that a major vegetation shift at close to 14,700 14C yr BP marked the beginning of the last glacial/interglacial transition (Newnham et al. 1989). The synchronous and nearly uniform lowering of snowlines in Southern Hemisphere middle-latitude mountains compared with Northern Hemisphere values suggests global cooling of about the same magnitude in both hemispheres at the LGM. When compared with paleoclimate records from the North Atlantic region, the middle-latitude Southern Hemisphere terrestrial data imply interhemispheric symmetry of the structure and timing of the last glacial/interglacial transition. In both regions atmospheric warming pulses are implicated near the beginning of Oldest Dryas time (∼14,600 14C yr BP) and near the Oldest Dryas/Bölling transition (∼12,700-13,000 14C yr BP). The second of these warming pulses was coincident with resumption of North Atlantic thermohaline circulation similar to that of the modern mode, with strong formation of Lower North Atlantic Deep Water in the Nordic Seas. In both regions, the maximum Bölling-age warmth was achieved at 12,200-12,500 14C yr BP, and was followed by a reversal in climate trend. In the North Atlantic region, and possibly in middle latitudes of the Southern Hemisphere, this reversal culminated in a Younger-Dryas-age cold pulse. Although changes in ocean circulation can redistribute heat between the hemispheres, they cannot alone account either for the synchronous planetary cooling of the LGM or for the synchronous interhemispheric warming steps of the abrupt glacial-to-interglacial transition. Instead, the dominant interhemispheric climate linkage must feature a global atmospheric signal. The most likely source of this signal is a change in the greenhouse content of the atmosphere. We speculate that the Oldest Dryas warming pulse originated from an increase in atmospheric water-vapor production by half-precession forcing in the tropics. The major thermohaline switch near the Oldest Dryas/Bölling transition then could have triggered another increase in tropical water-vapor production to near-interglacial values.", "publicationTitle": "Geografiska Annaler. Series A, Physical Geography", "publisher": "", "place": "", "date": "1999", "volume": "81", "issue": "2", "section": "", "partNumber": "", "partTitle": "", "pages": "107-153", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "", "citationKey": "", "url": "http://0-www.jstor.org.cals.evergreen.edu/stable/521340?seq=1", "accessDate": "2010-11-05T12:26:10Z", "PMID": "", "PMCID": "", "ISSN": "04353676", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "JSTOR", "callNumber": "", "rights": "", "extra": "ArticleType: research-article / Issue Title: Glacial and Vegetational History of the Southern Lake District of Chile / Full publication date: 1999 / Copyright © 1999 Swedish Society for Anthropology and Geography", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-11-05T12:26:10Z", "dateModified": "2010-11-05T12:29:48Z" } }, { "key": "QAJ9SVUU", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/QAJ9SVUU", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/QAJ9SVUU", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/T5EZHBTH", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "QAJ9SVUU", "version": 1, "parentItem": "T5EZHBTH", "itemType": "note", "note": "FULL TEXT Very broad paleoclimate patterns
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T12:28:17Z", "dateModified": "2010-11-05T12:28:19Z" } }, { "key": "JQCHP2DA", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/JQCHP2DA", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/JQCHP2DA", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/IFC9WCB9", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "JQCHP2DA", "version": 1, "parentItem": "IFC9WCB9", "itemType": "note", "note": "FULL TEXT Overview of tropical Andes climate variability from compiled analysis of glacial cores, sediment cores, pollen, etc.
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:16:54Z", "dateModified": "2010-11-05T11:18:37Z" } }, { "key": "IFC9WCB9", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/IFC9WCB9", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/IFC9WCB9", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 2 }, "data": { "key": "IFC9WCB9", "version": 1, "itemType": "journalArticle", "title": "Climate variability of the tropical Andes since the late Pleistocene", "creators": [], "abstractNote": "", "publicationTitle": "", "publisher": "", "place": "", "date": "", "volume": "", "issue": "", "section": "", "partNumber": "", "partTitle": "", "pages": "", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "", "citationKey": "", "url": "www.adv-geosci.net/22/13/2009/adgeo-22-13-2009.pdf", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:15:14Z", "dateModified": "2010-11-05T11:16:16Z" } }, { "key": "TBAVK7HF", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/TBAVK7HF", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/TBAVK7HF", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/Q9R5VHJA", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "TBAVK7HF", "version": 1, "parentItem": "Q9R5VHJA", "itemType": "note", "note": "FULL TEXT pg. 21-30 Sedimentary/Core samples used for modeling (lacking good methods)
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "EC67A76H", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/EC67A76H", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/EC67A76H", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/32H8E6JS", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "EC67A76H", "version": 1, "parentItem": "32H8E6JS", "itemType": "note", "note": "FULL TEXT General paper based on sediment cores in Peru
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "I7T3T8N3", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/I7T3T8N3", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/I7T3T8N3", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/F6MKRN4W", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "I7T3T8N3", "version": 1, "parentItem": "F6MKRN4W", "itemType": "note", "note": "FULL TEXT Diatoms Northern Pacific, attributed C13 dating/deposition to ENSO.
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "CBG6Z5R3", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/CBG6Z5R3", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/CBG6Z5R3", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/9U2RCTK4", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "CBG6Z5R3", "version": 1, "parentItem": "9U2RCTK4", "itemType": "note", "note": "FULL TEXT PDF
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "32H8E6JS", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/32H8E6JS", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/32H8E6JS", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "creatorSummary": "Makou et al.", "parsedDate": "2010-01", "numChildren": 1 }, "data": { "key": "32H8E6JS", "version": 1, "itemType": "journalArticle", "title": "Postglacial changes in El Niño and La Niña behavior.", "creators": [ { "creatorType": "author", "firstName": "Matthew C.", "lastName": "Makou" }, { "creatorType": "author", "firstName": "Timothy I.", "lastName": "Eglinton" }, { "creatorType": "author", "firstName": "Delia W.", "lastName": "Oppo" }, { "creatorType": "author", "firstName": "Konrad A.", "lastName": "Hughen" } ], "abstractNote": "Paleoclimate reconstructions suggest distinctive changes in the El Niño-Southern Oscillation (ENSO), the dominant mode of tropical climate variability, over the last glacial cycle and throughout the Holocene. However, to the best of our knowledge, no studies provide parallel reconstructions of warm (El Niño) and cold (La Niña) phase variability, thus precluding distinction between variations in ENSO activity and the mean state of the tropical Pacific. Here we provide the first such records, generated using molecular organic geochemical proxies in a sediment core from the Peru margin region. The opposing influences of El Niño and La Niña on coastal upwelling and phytoplankton community structure produce distinct sedimentary sterol records describing the evolution of each ENSO phase. We document changes in surface ocean productivity on the Peru margin over the past 16 ka that indicate enhanced La Niña-like conditions alone during deglaciation, but concomitant increases in both El Niño and La Niña activity during the past 2 ka. We propose that the preponderance of La Niña-like conditions prior to 11.5 ka reflects the influence of waning glacial boundary conditions. By contrast, warm and cold phase covariability during the late Holocene suggests centennial-scale changes in ENSO activity, rather than the Pacific mean state, driven by tropical insolation. [ABSTRACT FROM AUTHOR]", "publicationTitle": "Geology", "publisher": "", "place": "", "date": "January 2010", "volume": "38", "issue": "1", "section": "", "partNumber": "", "partTitle": "", "pages": "43-46", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "10.1130/G30366.1", "citationKey": "", "url": "http://www.google.com/url?sa=t&source=web&cd=4&ved=0CCEQFjAD&url=ftp%3A%2F%2Frock.geosociety.org%2Fpub%2Freposit%2F2010%2F2010007.pdf&rct=j&q=Postglacial%20changes%20in%20El%20Ni%C3%B1o%20and%20La%20Ni%C3%B1a%20behavior.&ei=BuDTTPeaKYemsQP07uWMCw&usg=AFQjCNF-Y42Whw54Vm4mnAOY9FhD_y-IIg&sig2=aqELTqeH2AInD3C2q_YtXg", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "00917613", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "EBSCOhost", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "CLIMATIC changes", "type": 1 }, { "tag": "EL Nino Current", "type": 1 }, { "tag": "GEOLOGY, Stratigraphic", "type": 1 }, { "tag": "HOLOCENE", "type": 1 }, { "tag": "PALEOCLIMATOLOGY", "type": 1 }, { "tag": "SOUTHERN oscillation", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "RS5K6Q9K", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/RS5K6Q9K", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/RS5K6Q9K", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "creatorSummary": "Hernández et al.", "parsedDate": "2010", "numChildren": 1 }, "data": { "key": "RS5K6Q9K", "version": 1, "itemType": "journalArticle", "title": "ENSO and solar activity signals from oxygen isotopes in diatom silica during late glacial-Holocene transition in Central Andes (18°S).", "creators": [ { "creatorType": "author", "firstName": "Armand", "lastName": "Hernández" }, { "creatorType": "author", "firstName": "Santiago", "lastName": "Giralt" }, { "creatorType": "author", "firstName": "Roberto", "lastName": "Bao" }, { "creatorType": "author", "firstName": "Alberto", "lastName": "Sáez" }, { "creatorType": "author", "firstName": "Melanie J.", "lastName": "Leng" }, { "creatorType": "author", "firstName": "Philip A.", "lastName": "Barker" } ], "abstractNote": "The late glacial-Holocene transition from the Lago Chungará sedimentary record in northern Chilean Altiplano (18°S) is made up of laminated sediments composed of light-white and dark-green pluriannual couplets of diatomaceous ooze. Light-white sediment laminae accumulated during short-term extraordinary diatom blooms whereas dark-green sediment laminae represent the baseline limnological conditions during several years of deposition. Diatom oxygen isotope ratios (δ18Odiatom) from 40 consecutive dark-green laminae, ranging from 11,990 to 11,450 cal year BP, show that a series of decadal-to-centennial dry–wet oscillations occurred. Dry periods are marked by relatively high isotope values whereas wet episodes are indicated by lower values. This interpretation agrees with the reconstructions of terrigenous inputs and regional effective moisture availability carried out in the lake but there is a systematic temporal disagreement between them owing to the non-linear response of the lacustrine ecosystem to environmental forcings. Furthermore, the δ18Odiatom record tracks effective moisture changes at a centennial scale. Three major phases have been established (11,990–11,800, 11,800–11,550, and 11,550–11,450 cal year BP). Each phase is defined by an increasing isotope trend followed by a sudden depletion. In addition, several wet and dry events at a decadal scale are superimposed onto these major trends. Spectral analyses of the δ18Odiatom values suggest that cycles and events could have been triggered by both El Niño-Southern Oscillation (ENSO) and solar activity. Significant ENSO frequencies of 7–9 years and 15–17 years, and periodicities of the solar activity cycles such as 11 years (Schwabe), 23 years (Hale) and 35 years (Brückner) have been recognised in the oxygen isotope time series. Time–frequency analysis shows that although solar and ENSO forcing were present at the onset of the Holocene, they were more intense during the late glacial period. The early Holocene might have been mainly governed by La Niña-like conditions that correspond to wet conditions over the Andean Altiplano. [ABSTRACT FROM AUTHOR]", "publicationTitle": "Journal of Paleolimnology", "publisher": "", "place": "", "date": "2010", "volume": "44", "issue": "2", "section": "", "partNumber": "", "partTitle": "", "pages": "413-429", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "10.1007/s10933-010-9412-x", "citationKey": "", "url": "http://www.springerlink.com/content/e07005075j91k5t7/", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "09212728", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "EBSCOhost", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "ANDES", "type": 1 }, { "tag": "Andean altiplano", "type": 1 }, { "tag": "DIATOMS", "type": 1 }, { "tag": "ENSO", "type": 1 }, { "tag": "HOLOCENE", "type": 1 }, { "tag": "ISOTOPES", "type": 1 }, { "tag": "Lake", "type": 1 }, { "tag": "Late glacial", "type": 1 }, { "tag": "OXYGEN", "type": 1 }, { "tag": "Oxygen isotopes", "type": 1 }, { "tag": "PALEOLIMNOLOGY", "type": 1 }, { "tag": "SILICA", "type": 1 }, { "tag": "SOLAR activity", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "9U2RCTK4", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/9U2RCTK4", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/9U2RCTK4", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 2 }, "data": { "key": "9U2RCTK4", "version": 1, "itemType": "webpage", "title": "Decline of surface temperature and salinity in the western tropical Pacific Ocean in the Holocene epoch", "creators": [], "abstractNote": "", "websiteTitle": "", "websiteType": "", "date": "", "publisher": "", "place": "", "DOI": "", "citationKey": "", "url": "http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBMQFjAA&url=http%3A%2F%2Fwww.climategeology.ethz.ch%2Fpeople%2Fghaug%2FStott_et_al__2004.pdf&rct=j&q=Decline%20of%20surface%20temperature%20and%20salinity%20in%20the%20western%20tropical%20Pacific%20Ocean%20in%20the%20Holocene%20epoch&ei=xtvTTMmbEYO0sAPZ7JGOCw&usg=AFQjCNGCBZPhQ0Hw-8C1lt04X00nOTchUw&sig2=-DjgKz0IJHph-DvNvhp4bQ", "accessDate": "2010-11-05T10:27:27Z", "shortTitle": "", "language": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "H9CZI36N", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/H9CZI36N", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/H9CZI36N", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "creatorSummary": "Euler and Ninnemann", "parsedDate": "2010-07", "numChildren": 2 }, "data": { "key": "H9CZI36N", "version": 1, "itemType": "journalArticle", "title": "Climate and Antarctic Intermediate Water coupling during the late Holocene.", "creators": [ { "creatorType": "author", "firstName": "Christine", "lastName": "Euler" }, { "creatorType": "author", "firstName": "Ulysses S.", "lastName": "Ninnemann" } ], "abstractNote": "Little is known about the scale of natural variability of the Southern Hemisphere upper ocean on decadal to centennial time scales, despite its potential importance for influencing regions as distant as the tropical Pacific (El Niño-Southern Oscillation; ENSO) or even the North Atlantic overturning circulation. Here we present the fi rst subdecadally sampled reconstruction of variability in the southeast Pacific upper-intermediate ocean from ca. A.D. 0-1300 using foraminiferal oxygen and carbon isotope records. Our results reveal large variability in surface ocean physical properties on both decadal and centennial time scales in the southeast Pacific; as much as 3 °C or more in as little as 50 yr. On centennial time scales, changes in Antarctic Intermediate Water physical properties (benthic foraminiferal δ13O) covary with those in the surface and are associated with shifts in tropical temperatures, thermocline nutrient dynamics, and ENSO, suggesting that they are part of a common Pacific-wide phenomenon. Our results reveal that natural variability in upper ocean properties is greater than previously appreciated and coherent with changes in the tropical thermocline, supporting both theories and models postulating the importance of extratropical-tropical teleconnections and the oceanic tunnel in interdecadal to centennial climate variability. [ABSTRACT FROM AUTHOR]", "publicationTitle": "Geology", "publisher": "", "place": "", "date": "July 2010", "volume": "38", "issue": "7", "section": "", "partNumber": "", "partTitle": "", "pages": "647-650", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "10.1130/G30902.1", "citationKey": "", "url": "http://0-web.ebscohost.com.cals.evergreen.edu/ehost/detail?vid=1&hid=105&sid=7387b667-4557-4deb-a10f-1e22513d84a5%40sessionmgr110&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=eih&AN=52007910", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "00917613", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "EBSCOhost", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "CARBON", "type": 1 }, { "tag": "CLIMATOLOGY -- Research", "type": 1 }, { "tag": "EL Nino Current", "type": 1 }, { "tag": "ISOTOPES", "type": 1 }, { "tag": "SOUTHERN Hemisphere", "type": 1 }, { "tag": "THERMOCLINES (Oceanography)", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "RK7UNN7D", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/RK7UNN7D", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/RK7UNN7D", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/XRXNKFPF", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "RK7UNN7D", "version": 1, "parentItem": "XRXNKFPF", "itemType": "note", "note": "FULL TEXT Broad patterns of ENSO, simulations
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "3XTQ4ADZ", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/3XTQ4ADZ", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/3XTQ4ADZ", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/RS5K6Q9K", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "3XTQ4ADZ", "version": 1, "parentItem": "RS5K6Q9K", "itemType": "note", "note": "FULL TEXT Diatoms oxygen isotope ratios indicate wet and dry events in three phases of Holocene
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "87UBF8V6", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/87UBF8V6", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/87UBF8V6", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/CVTCSEZG", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "87UBF8V6", "version": 1, "parentItem": "CVTCSEZG", "itemType": "note", "note": "FULL TEXT mid-Holocene ENSO simulations based on coral oxygen isotope records from Pacific Warm Pool
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "2RVKJFFC", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/2RVKJFFC", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/2RVKJFFC", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/30669/items/H9CZI36N", "type": "application/json" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "2RVKJFFC", "version": 1, "parentItem": "H9CZI36N", "itemType": "note", "note": "FULL TEXT 0 A.D. to Present, Figures on present-day ENSO.
", "tags": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "Q9R5VHJA", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/Q9R5VHJA", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/Q9R5VHJA", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "creatorSummary": "Moy et al.", "parsedDate": "2002-11-14", "numChildren": 1 }, "data": { "key": "Q9R5VHJA", "version": 1, "itemType": "journalArticle", "title": "Variability of El Niño/Southern Oscillation activity at millennial timescales during the Holocene epoch..", "creators": [ { "creatorType": "author", "firstName": "Christopher M.", "lastName": "Moy" }, { "creatorType": "author", "firstName": "Geoffrey O.", "lastName": "Seltzer" }, { "creatorType": "author", "firstName": "Donald T.", "lastName": "Rodbell" }, { "creatorType": "author", "firstName": "David M.", "lastName": "Anderson" } ], "abstractNote": "The variability of El Niño/Southern Oscillation (ENSO) during the Holocene epoch, in particular on millennial timescales, is poorly understood. Palaeoclimate studies have documented ENSO variability for selected intervals in the Holocene, but most records are either too short or insufficiently resolved to investigate variability on millennial scales. Here we present a record of sedimentation in Laguna Pallcacocha, southern Ecuador, which is strongly influenced by ENSO variability, and covers the past 12,000 years continuously. We find that changes on a timescale of 2-8 years, which we attribute to warm ENSO events, become more frequent over the Holocene until about 1,200 years ago, and then decline towards the present. Periods of relatively high and low ENSO activity, alternating at a timescale of about 2,000 years, are superimposed on this long-term trend. We attribute the long-term trend to orbitally induced changes in insolation, and suggest internal ENSO dynamics as a possible cause of the millennial variability. However, the millennial oscillation will need to be confirmed in other ENSO proxy records. [ABSTRACT FROM AUTHOR]", "publicationTitle": "Nature", "publisher": "", "place": "", "date": "November 14, 2002", "volume": "420", "issue": "6912", "section": "", "partNumber": "", "partTitle": "", "pages": "162", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "Article", "citationKey": "", "url": "http://0-web.ebscohost.com.cals.evergreen.edu/ehost/pdfviewer/pdfviewer?vid=2&hid=105&sid=4ca5fcec-cbb3-4de4-93ec-ec90ffb5ea47%40sessionmgr110", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "00280836", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "EBSCOhost", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "EL Nino Current", "type": 1 }, { "tag": "SOUTHERN oscillation", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "XRXNKFPF", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/XRXNKFPF", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/XRXNKFPF", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "creatorSummary": "Chiang et al.", "parsedDate": "2009-02-15", "numChildren": 2 }, "data": { "key": "XRXNKFPF", "version": 1, "itemType": "journalArticle", "title": "Pacific Climate Change and ENSO Activity in the Mid-Holocene.", "creators": [ { "creatorType": "author", "firstName": "J. C. H.", "lastName": "Chiang" }, { "creatorType": "author", "firstName": "Y.", "lastName": "Fang" }, { "creatorType": "author", "firstName": "P.", "lastName": "Chang" } ], "abstractNote": "The authors argue that a reduction to the stochastic forcing of the El Niño–Southern Oscillation (ENSO) wrought by Pacific-wide climate changes in response to mid-Holocene (6000 BP) orbital forcing is a viable hypothesis for the observed reduction of ENSO activity during that time. This conclusion is based on comprehensive analysis of an intermediate coupled model that achieves significant reduction to ENSO variance in response to mid-Holocene orbital forcing. The model's excellent simulation of the tropical Pacific interannual variability lends credibility to the results. Idealized simulations demonstrate that the mid-Holocene influence is communicated to the tropical Pacific largely via climate changes outside of the tropical Pacific, rather than from insolation changes directly on the tropical Pacific. This is particularly true for changes to the ENSO, but also with changes to the cold tongue annual cycle. Previously proposed mechanisms for teleconnected mid-Holocene ENSO changes, including forcing of ENSO by a strengthened Asian summer monsoon and an increase in the annual cycle forcing on the tropical Pacific leading to a reduction in ENSO activity by frequency entrainment, do not appear to occur in these simulations. Rather, the authors show that the modeled mid-Holocene climate exhibits a pronounced reduction in Pacific meridional mode activity that has been recently shown to be a forcing on ENSO, though the reasons for this reduction are still to be explained. The contrasting nature of the results compared to previous studies highlights the effect of the prevailing ENSO paradigm on this problem. By showing that an externally forced ENSO model is equally capable of explaining mid-Holocene ENSO reduction as its nonlinear, weakly chaotic counterpart, it is demonstrated that the mid-Holocene ENSO data point cannot yet discriminate between these two paradigms of ENSO. [ABSTRACT FROM AUTHOR]", "publicationTitle": "Journal of Climate", "publisher": "", "place": "", "date": "February 15, 2009", "volume": "22", "issue": "4", "section": "", "partNumber": "", "partTitle": "", "pages": "923-939", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "Article", "citationKey": "", "url": "http://0-web.ebscohost.com.cals.evergreen.edu/ehost/detail?vid=1&hid=105&sid=82058326-1062-4ecd-bdca-bb8e3e183e83%40sessionmgr113&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=a9h&AN=36925213", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "08948755", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "EBSCOhost", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "ATMOSPHERIC pressure", "type": 1 }, { "tag": "CLIMATIC changes", "type": 1 }, { "tag": "EL Nino Current", "type": 1 }, { "tag": "MONSOONS", "type": 1 }, { "tag": "OCEAN-atmosphere interaction", "type": 1 }, { "tag": "PACIFIC Area", "type": 1 }, { "tag": "SOLAR radiation", "type": 1 }, { "tag": "SOUTHERN oscillation", "type": 1 }, { "tag": "TROPICS", "type": 1 }, { "tag": "TROPICS -- Climate", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } }, { "key": "F6MKRN4W", "version": 1, "library": { "type": "group", "id": 30669, "name": "Scorpios Rising", "links": { "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/30669/items/F6MKRN4W", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/scorpios_rising/items/F6MKRN4W", "type": "text/html" } }, "meta": { "createdByUser": { "id": 210751, "username": "deja.malone", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/deja.malone", "type": "text/html" } } }, "creatorSummary": "Katsuki et al.", "parsedDate": "2009-07", "numChildren": 1 }, "data": { "key": "F6MKRN4W", "version": 1, "itemType": "journalArticle", "title": "Land-sea linkage of Holocene paleoclimate on the Southern Bering Continental Shelf.", "creators": [ { "creatorType": "author", "firstName": "Kota", "lastName": "Katsuki" }, { "creatorType": "author", "firstName": "Boo-Keun", "lastName": "Khim" }, { "creatorType": "author", "firstName": "Takuya", "lastName": "Itaki" }, { "creatorType": "author", "firstName": "Naomi", "lastName": "Harada" }, { "creatorType": "author", "firstName": "Hideo", "lastName": "Sakai" }, { "creatorType": "author", "firstName": "Tomonori", "lastName": "Ikeda" }, { "creatorType": "author", "firstName": "Kozo", "lastName": "Takahashi" }, { "creatorType": "author", "firstName": "Yusuki", "lastName": "Okazaki" }, { "creatorType": "author", "firstName": "Hirofumi", "lastName": "Asahi" } ], "abstractNote": "Detailed diatom records within surface and core sediments from the Southern Bering Continental Shelf (SBCS) reveal that the Holocene evolution of sea-ice distribution is associated with low pressure patterns. Holocene sea-ice distribution over the SBCS was mainly controlled by the location of the Aleutian Low. The corresponding paleoceanographic and paleoclimate conditions can be divided into three stages: (1) the early Holocene (before 7000 cal. yr BP) was characterized by extensive sea-ice distribution under two low-pressure cells, which covered the western Bering Sea and the Gulf of Alaska, respectively. (2) Between 3000 and 7000 cal. yr BP, the low-pressure system over the Gulf of Alaska became weak, causing total sea-ice mass over the SBCS to retreat. (3) In the past 3000 years, prevailing southwesterly winds over the SBCS due to the developing Aleutian Low have reduced further sea-ice cover on the SBCS. These paleoclimatic changes were probably a response to ENSO variation. The timings of water mass exchanges on the SBCS coincided with sea-level change along the Alaskan Peninsula. As a result, subsequent morphologic alterations have also influenced the paleoceanographic condition of the SBCS. The effect of the surface coastal water and bottom marine water on the SBCS intensified about 6000 cal. yr BP when sea level increased. [ABSTRACT FROM AUTHOR]", "publicationTitle": "Holocene", "publisher": "", "place": "", "date": "July 2009", "volume": "19", "issue": "5", "section": "", "partNumber": "", "partTitle": "", "pages": "747-756", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "Article", "citationKey": "", "url": "http://0-bt9fc4um7s.search.serialssolutions.com.cals.evergreen.edu/?sid=CSA:aquclust-set-c&pid=%3CAN%3E12449104%3C%2FAN%3E%26%3CPB%3ESage%20Publications%20Ltd.%2C%206%20Bonhill%20St.%20London%20EC2A%204PU%20UK%3C%2FPB%3E%26%3CPY%3E2009%3C%2FPY%3E%26%3CAU%3EKatsuki%2C%20Kota%3B%20Khim%2C%20Boo-Keun%3B%20Itaki%2C%20Takuya%3B%20Harada%2C%20Naomi%3B%20Sakai%2C%20Hideo%3B%20Ikeda%2C%20Tomonori%3B%20Takahashi%2C%20Kozo%3B%20Okazaki%2C%20Yusuki%3B%20Asahi%2C%20Hirofumi%3C%2FAU%3E&id=doi%3A10.1177%2F0959683609105298&issn=0959-6836&volume=19&issue=5&spage=747&epage=756&date=2009-08&genre=article&aulast=Katsuki&aufirst=Kota&title=Holocene&atitle=Land-sea%20linkage%20of%20Holocene%20paleoclimate%20on%20the%20Southern%20Bering%20Continental%20Shelf", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "09596836", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "EBSCOhost", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "BERING Sea", "type": 1 }, { "tag": "CLIMATIC changes", "type": 1 }, { "tag": "DIATOMS", "type": 1 }, { "tag": "HOLOCENE", "type": 1 }, { "tag": "MARINE sediments", "type": 1 }, { "tag": "OCEANOGRAPHY", "type": 1 }, { "tag": "SEA ice", "type": 1 }, { "tag": "land-sea linkage", "type": 1 }, { "tag": "paleoclimate", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2010-11-05T11:00:09Z", "dateModified": "2010-11-05T11:00:09Z" } } ]