Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest
Sediments collected off northern California by Ocean Drilling Program Leg 167 contain time series that show strong, orbitally driven insolation forcing of surface oceanographic conditions. Orbital forcing caused a strong response in the distribution of major terrestrial vegetation but a less predict...
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ftboisestateu:oai:scholarworks.boisestate.edu:cgiss_facpubs-1101 2023-10-29T02:37:01+01:00 Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest Lyle, Mitchell Heusser, Linda Herbert, Timothy Mix, Alan Barron, John 2001-12-01T08:00:00Z https://scholarworks.boisestate.edu/cgiss_facpubs/100 https://doi.org/10.1130/0091-7613(2001)029<1115:ITAVKY>2.0.CO;2 unknown ScholarWorks https://scholarworks.boisestate.edu/cgiss_facpubs/100 http://dx.doi.org/10.1130/0091-7613(2001)029<1115:ITAVKY>2.0.CO;2 CGISS Publications and Presentations paleoceanography paleoclimate Pleistocene pollen paleoproductivity sea surface temperature vegetation Geosciences Earth Sciences Geophysics and Seismology text 2001 ftboisestateu https://doi.org/10.1130/0091-7613(2001)029<1115:ITAVKY>2.0.CO;2 2023-09-29T15:03:46Z Sediments collected off northern California by Ocean Drilling Program Leg 167 contain time series that show strong, orbitally driven insolation forcing of surface oceanographic conditions. Orbital forcing caused a strong response in the distribution of major terrestrial vegetation but a less predictable response for primary productivity offshore. Terrestrial vegetation responded primarily to regional sea surface temperature (SST). Coastal ocean productivity appears highest when SST is moderately high, not during peak interglacial conditions nor during insolation maxima. When individual interglacial intervals are examined closely, each has a different signature. Two of six interglacials (MIS [marine isotope stage] 5 and MIS 11) have higher SST than modern conditions, but each elicits a different response from the terrestrial and marine communities. The type of vegetation and the strength of upwelling vary between interglacials, depending on the relative strength of factors that drive the warming, including insolation, ice-cap size, and level of greenhouse gases. Text Ice cap Boise State University: Scholar Works |
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Open Polar |
collection |
Boise State University: Scholar Works |
op_collection_id |
ftboisestateu |
language |
unknown |
topic |
paleoceanography paleoclimate Pleistocene pollen paleoproductivity sea surface temperature vegetation Geosciences Earth Sciences Geophysics and Seismology |
spellingShingle |
paleoceanography paleoclimate Pleistocene pollen paleoproductivity sea surface temperature vegetation Geosciences Earth Sciences Geophysics and Seismology Lyle, Mitchell Heusser, Linda Herbert, Timothy Mix, Alan Barron, John Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest |
topic_facet |
paleoceanography paleoclimate Pleistocene pollen paleoproductivity sea surface temperature vegetation Geosciences Earth Sciences Geophysics and Seismology |
description |
Sediments collected off northern California by Ocean Drilling Program Leg 167 contain time series that show strong, orbitally driven insolation forcing of surface oceanographic conditions. Orbital forcing caused a strong response in the distribution of major terrestrial vegetation but a less predictable response for primary productivity offshore. Terrestrial vegetation responded primarily to regional sea surface temperature (SST). Coastal ocean productivity appears highest when SST is moderately high, not during peak interglacial conditions nor during insolation maxima. When individual interglacial intervals are examined closely, each has a different signature. Two of six interglacials (MIS [marine isotope stage] 5 and MIS 11) have higher SST than modern conditions, but each elicits a different response from the terrestrial and marine communities. The type of vegetation and the strength of upwelling vary between interglacials, depending on the relative strength of factors that drive the warming, including insolation, ice-cap size, and level of greenhouse gases. |
format |
Text |
author |
Lyle, Mitchell Heusser, Linda Herbert, Timothy Mix, Alan Barron, John |
author_facet |
Lyle, Mitchell Heusser, Linda Herbert, Timothy Mix, Alan Barron, John |
author_sort |
Lyle, Mitchell |
title |
Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest |
title_short |
Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest |
title_full |
Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest |
title_fullStr |
Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest |
title_full_unstemmed |
Interglacial Theme and Variations: 500 k.y. of Orbital Forcing and Associated Responses from the Terrestrial and Marine Biosphere, U.S. Pacific Northwest |
title_sort |
interglacial theme and variations: 500 k.y. of orbital forcing and associated responses from the terrestrial and marine biosphere, u.s. pacific northwest |
publisher |
ScholarWorks |
publishDate |
2001 |
url |
https://scholarworks.boisestate.edu/cgiss_facpubs/100 https://doi.org/10.1130/0091-7613(2001)029<1115:ITAVKY>2.0.CO;2 |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
CGISS Publications and Presentations |
op_relation |
https://scholarworks.boisestate.edu/cgiss_facpubs/100 http://dx.doi.org/10.1130/0091-7613(2001)029<1115:ITAVKY>2.0.CO;2 |
op_doi |
https://doi.org/10.1130/0091-7613(2001)029<1115:ITAVKY>2.0.CO;2 |
_version_ |
1781061342246993920 |