CLIMATE CHANGE Lessons from Earth’s Past
fixed in carbonate shells, can help researchers estimate where and how fast the conveyor has moved. Today, it appears that a deepwater parcel that forms in the North Atlantic will reach the southernmost Atlantic after about 1400 “ 14 C years, ” and reach the northeastern Pacific after more than 2200...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.397.6663 2023-05-15T17:31:50+02:00 CLIMATE CHANGE Lessons from Earth’s Past Jeffrey Kiehl The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.397.6663 http://www.cgd.ucar.edu/ccr/aboutus/staff/kiehl/LessonsfromEarthsPast.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.397.6663 http://www.cgd.ucar.edu/ccr/aboutus/staff/kiehl/LessonsfromEarthsPast.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cgd.ucar.edu/ccr/aboutus/staff/kiehl/LessonsfromEarthsPast.pdf text ftciteseerx 2016-09-25T00:08:01Z fixed in carbonate shells, can help researchers estimate where and how fast the conveyor has moved. Today, it appears that a deepwater parcel that forms in the North Atlantic will reach the southernmost Atlantic after about 1400 “ 14 C years, ” and reach the northeastern Pacific after more than 2200 14 C years; this is equivalent to a deepwater 14 C loss of ~250 per mil (‰). Such old ages and long cycling times are important because they suggest the ocean absorbed, stored, and released vast quantities of carbon in the past. Below 2000-m depth, the gradual aging of modern ocean waters is closely linked to a gradual rise in dissolved CO 2. Today, a 50 ‰ decrease in global deepwater 14 C corresponds approximately to a 7-µmol/kg rise in (natural) dissolved Text North Atlantic Unknown Pacific |
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fixed in carbonate shells, can help researchers estimate where and how fast the conveyor has moved. Today, it appears that a deepwater parcel that forms in the North Atlantic will reach the southernmost Atlantic after about 1400 “ 14 C years, ” and reach the northeastern Pacific after more than 2200 14 C years; this is equivalent to a deepwater 14 C loss of ~250 per mil (‰). Such old ages and long cycling times are important because they suggest the ocean absorbed, stored, and released vast quantities of carbon in the past. Below 2000-m depth, the gradual aging of modern ocean waters is closely linked to a gradual rise in dissolved CO 2. Today, a 50 ‰ decrease in global deepwater 14 C corresponds approximately to a 7-µmol/kg rise in (natural) dissolved |
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The Pennsylvania State University CiteSeerX Archives |
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Text |
author |
Jeffrey Kiehl |
spellingShingle |
Jeffrey Kiehl CLIMATE CHANGE Lessons from Earth’s Past |
author_facet |
Jeffrey Kiehl |
author_sort |
Jeffrey Kiehl |
title |
CLIMATE CHANGE Lessons from Earth’s Past |
title_short |
CLIMATE CHANGE Lessons from Earth’s Past |
title_full |
CLIMATE CHANGE Lessons from Earth’s Past |
title_fullStr |
CLIMATE CHANGE Lessons from Earth’s Past |
title_full_unstemmed |
CLIMATE CHANGE Lessons from Earth’s Past |
title_sort |
climate change lessons from earth’s past |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.397.6663 http://www.cgd.ucar.edu/ccr/aboutus/staff/kiehl/LessonsfromEarthsPast.pdf |
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Pacific |
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Pacific |
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North Atlantic |
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North Atlantic |
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http://www.cgd.ucar.edu/ccr/aboutus/staff/kiehl/LessonsfromEarthsPast.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.397.6663 http://www.cgd.ucar.edu/ccr/aboutus/staff/kiehl/LessonsfromEarthsPast.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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