noaa-lake-22582 Lake Radon, Pyrenees Temperature Reconstruction from Chrysophyte cysts covering 578-1994 CE Pla, S.; Catalan, J. Lake Radon, Pyrenees Temperature Reconstruction from Chrysophyte cysts covering 578-1994 CE 2017-05-19 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22582 Investigator S. Pla Investigator J. Catalan earth science paleoclimate climate reconstructions|paleolimnology sample identification,null,null,null,null,climate reconstructions|paleolimnology,null,null,C,null earth science paleoclimate climate reconstructions|paleolimnology age,null,null,year Common Era,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology temperature,chrysophyte assemblage,unspecified margin of error,degree Celsius,null,climate reconstructions|paleolimnology,anomalized,modern analogue technique,N,null earth science paleoclimate climate reconstructions|paleolimnology sample identification,null,null,null,null,climate reconstructions|paleolimnology,null,null,C,sample name earth science paleoclimate climate reconstructions|paleolimnology temperature,chrysophyte assemblage,unspecified margin of error,degree Celsius,null,climate reconstructions|paleolimnology,anomalized,modern analogue technique,N,winter/spring earth science paleoclimate climate reconstructions|paleolimnology age,null,null,calendar year before present,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|paleolimnology temperature,chrysophyte assemblage,null,degree Celsius,null,climate reconstructions|paleolimnology,anomalized,modern analogue technique,N,null earth science paleoclimate climate reconstructions|paleolimnology temperature,chrysophyte assemblage,null,degree Celsius,null,climate reconstructions|paleolimnology,anomalized,modern analogue technique,N,winter/spring earth science paleoclimate paleolimnology reconstruction geoscientificInformation Air Temperature Reconstruction 578 AD 1994 AD 1372 cal yr BP -44 cal yr BP Complete 42.6425 42.6425 .770278 .770278 2240 2240 Continent Europe Southern Europe Spain Lake Redon>LATITUDE 42.6425>LONGITUDE .770278 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Pla, Sergi and Jordi Catalan 2004 Climate Dynamics 24 263-278 10.1007/s00382-004-0482-1

In the last decade, much effort was dedicated to the reconstruction of past climate at high temporal resolution. Here, we show the suitability of chrysophyte cysts from lake sediments for revealing continental climate variability when used in sensitive sites, such as those in high mountains. We demonstrate that altitude is a main factor influencing the present distribution of chrysophytes and develop a transfer function to evaluate the local “altitude anomaly” on a lake site throughout time. Based on our knowledge of chrysophyte ecology, the altitude anomalies are interpreted as winter/spring climate signatures. The method was applied to a Holocene record from a lake in the Pyrenees showing submillennial climatic variability in this northwestern Mediterranean zone. A warming trend was present from the early Holocene to 4 kyear BP. Comparison with pollen-based reconstructions of summer temperatures denoted a contrasting decrease in continentality between the two parts of the Holocene. Oscillations of 1 cycle per ca. 2,000 years appeared throughout the record. The warmest Holocene winters were recorded during the Medieval Warm Period at ca. AD 900 and 450 and the Roman Warm Period (2.7–2.4 kyear BP). Winters in the period AD 1,050–1,175 were inferred to be as cold as in the Little Ice Age. The period between 3 and 7 kyear BP showed lower intensity in the fluctuations than in early and late Holocene. The cold event, 8,200 years ago, appeared embedded in a warm fluctuation. Another cold fluctuation was recorded around 9 kyear BP, which is in agreement with Irish and Greenland records.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/spain/pla2004-pyrenee.txt NOAA Template File; Lake Redon Temperature Reconstruction GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/pages2k-temperature-v2-2017/data-version-2.0.0/Eur-CentralandEasternPyrenees.Pla.2004.txt NOAA Template File; PAGES 2k v2 Original Contribution GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/pages2k-temperature-v2-2017/data-version-2.0.0/Eur-CentralandEasternPyrenees.Pla.2004.lpd Linked Paleo Data (LiPD) File; PAGES 2k v2 Original Contribution USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11