NOAA/WDS Paleoclimatology - Iceberg Lake, Alaska 1500 Year Varve Thickness Data

browse graphicPaleoclimatology - Lake
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Lake. The data include parameters of paleolimnology with a geographic location of Alaska, United States Of America. The time period coverage is from 600 to 53 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
  • Cite as: Diedrich, K.E.; Loso, M.G. (2012-06-30): NOAA/WDS Paleoclimatology - Iceberg Lake, Alaska 1500 Year Varve Thickness Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/13081. Accessed [date].
  • Please refer to Credit tab for full citation information.
  • noaa-lake-13081
  • NCEI DSI 1200_01
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Distributor Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
1-828-271-4800
ncei.orders@noaa.gov
Dataset Point of Contact Bauer, Bruce
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
+1 303-497-6280
paleo@noaa.gov
Coverage Description Date Range: 1350 AD to 1897 AD; Date Range: 600 cal yr BP to 53 cal yr BP;
Time Period 1350 to 1897
Spatial Bounding Box Coordinates
N: 60.783
S: 60.783
E: -142.95
W: -142.95
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2012-06-30
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Data update frequency not available
Supplemental Information
STUDY NOTES: Varve thickness measurements from Iceberg Lake, southern Alaska. Iceberg Lake, Alaska: 60°47'N, 142°57'W, 933m elev.
ABSTRACT SUPPLIED BY ORIGINATOR: Iceberg Lake, a glacier-dammed proglacial lake in southern Alaska, contains a 1,500+ year varve record complicated by a history of episodic lake-level changes associated with fluctuations in ice-dam thickness and position. To better understand the basinwide glaciolacustrine response to late Holocene climate variability, we collected five cores from two areas in the lake, including a previously unexamined deepwater area distal from inlet streams. Based on eight AMS 14C dates, and correlations among our cores and previously documented outcrops, we describe ~1,000 years of stratigraphy from each area. Deposition at both areas was dominated by fine-grained varves, but cores from the distal area uniquely contain coarser deposits, including rhythmites and graded sand beds, that we attribute to deposition of a subaqueous outwash fan-delta between ~1250 and 1650 AD. We attribute this event to thickening of the impounding glacier and consequent incursion of the glacier margin, and an associated lateral moraine, into the lake. This result suggests an early onset of the Little Ice Age (LIA) glacial advance in this region. Changes in basinwide circulation and sedimentation associated with this event probably caused minor thickening of varves used previously to reconstruct summer temperatures, reducing sensitivity of that record to early LIA cooling. The basinwide impact of this event illustrates the potentially significant spatial and temporal variability of lacustrine sedimentary processes in dynamic glacial landscapes.
Purpose Records of past climate and environment derived from lake sediment records. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations.
Dataset Citation
  • Cite as: Diedrich, K.E.; Loso, M.G. (2012-06-30): NOAA/WDS Paleoclimatology - Iceberg Lake, Alaska 1500 Year Varve Thickness Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/13081. Accessed [date].
  • 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.
Cited Authors
  • Diedrich, K.E.
  • Loso, M.G.
Originators
  • Diedrich, K.E.
  • Loso, M.G.
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records
Global Change Master Directory (GCMD) Science Keywords
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > paleolimnology
  • earth science > paleoclimate > paleolimnology > physical properties
  • Arctic
  • Little Ice Age (LIA)
  • PAGES Arctic 2k
Place keywords
  • Continent > North America > United States Of America > Alaska> Iceberg Lake > LATITUDE 60.783 > LONGITUDE -142.95
Use Constraints
  • Cite as: Diedrich, K.E.; Loso, M.G. (2012-06-30): NOAA/WDS Paleoclimatology - Iceberg Lake, Alaska 1500 Year Varve Thickness Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/13081. Accessed [date].
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
  • 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.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
  • None
Fees
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Last Modified: 2018-12-11
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