| PALEOLIMNOLOGY |
Climatically induced lake level changes during the last two millennia as reflected in sediments of Laguna Potrok Aike, southern
Patagonia (Santa Cruz, Argentina).
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Haberzettl, T.,Ohlendorf, C.,Zolitschka, B. 2005 Climatically induced lake level changes during the last two millennia as
reflected in sediments of Laguna Potrok Aike, southern Patagonia (Santa Cruz, Argentina). Journal of Paleolimnology Vol. 33,
pp. 283-302.
| Data Coverage |
North: -51.95 * South: -51.95 |
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West: -70.3833 * East: -70.3833 |
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Altitude: 113 m |
Start Year: 1550 cal yr BP * End Year: -50 cal yr BP
Data: Please Cite Data Contributors!
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Summary: The volcanogenic lake Laguna Potrok Aike, Santa Cruz, Argentina,
reveals an unprecedented continuous high resolution climatic record
for the steppe regions of southern Patagonia. With the applied
multi-proxy approach rapid climatic changes before the turn of the
first millennium were detected followed by medieval droughts which
are intersected by moist and/or cold periods of varying durations
and intensities. The 'total inorganic carbon' content was identified
as a sensitive lake level indicator. This proxy suggests that during
the late Middle Ages (ca. AD 1230¿1410) the lake level was rather low
representing a signal of the 'Medieval Climate Anomaly' in southeastern
Patagonia. At the beginning of the 'Little Ice Age' the lake level
rose considerably staying on a high level during the whole period.
Subsequently, the lake level lowered again in the course of the
20th century.
More Info on Paleolimnology |
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Complete XML Record: noaa-lake-6052
(Last Revised: 2009-02-11 )
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DOC/NOAA/NESDIS/NCDC (National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce )
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| http://www.ncdc.noaa.gov/paleo/ |
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