NOAA/WDS Paleoclimatology - Greenland Lake Transect Modern Carbon and Hydrogen Isotope Data
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 Greenland. The time period coverage is from -60 to -65 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: McFarlin, J.M.; Axford, Y.; Masterson, A.L.; Osburn, M.R. (2019-10-23): NOAA/WDS Paleoclimatology - Greenland Lake Transect Modern Carbon and Hydrogen Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/hhxw-a620. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/hhxw-a620
- noaa-lake-27790
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-lake-27790
Search Data |
|
Download Data |
|
Distribution Formats |
|
Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact
NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 2010 CE to 2015 CE; Date Range: -60 cal yr BP to -65 cal yr BP; |
Time Period | 2010 to 2015 |
Spatial Bounding Box Coordinates |
N: 76.85
S: 60.38
E: -44.3
W: -68.66
|
Spatial Coverage Map |
General Documentation |
|
Associated Resources |
|
Publication Dates |
|
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: Modern d2H (per mil VSMOW) and d13C (per mil VPDB) values of n-alkanes and n-alkanoic acids in lakes sediments from Greenland along latitudinal transect
ABSTRACT SUPPLIED BY ORIGINATOR: Sedimentary plant wax distributions and isotopic compositions are powerful, widely applied paleoenvironmental proxies. However, there is conflicting evidence on the behavior of these proxies at high-latitude sites, where extreme climate and light conditions may uniquely influence plant physiology and growth. Here, we present modern sedimentary n-alkane and n-alkanoic acid abundances and compound-specific (d2H and d13C) isotope values from a 22-lake transect extending from northwest to southernmost Greenland, covering a large latitudinal and climatic gradient. Sedimentary plant waxes are similar in abundance and carbon isotopic composition across the transect, suggesting no major differences in biologic sources. There are strong correlations (r = 0.8-0.9) between d2H values of many long-chain sedimentary waxes and those of modelled precipitation, with n-alkanes more tightly correlated to precipitation than n-alkanoic acids. Data presented here also demonstrate that d2H values of mid-chain sedimentary waxes do not strongly correlate to the d2H values of lake water when it decouples isotopically from precipitation (i.e. in glacier-fed and evaporatively-enriched lakes). This calls into question the common interpretation that mid-chain sedimentary waxes can be ascribed to aquatic plants. We contextualize our Greenland data with an updated global dataset of d2H values of modern sedimentary waxes and precipitation. This update adds 100 + lakes from recently published literature to the seminal review presented by Sachse et al. (2012). This large new compilation suggests a global average apparent fractionation including Arctic data between n-C28 alkanoic acids and annual precipitation (EC28/ANN) of -99permil, and between n-C29 alkanes and annual precipitation (EC29/ANN) of -121permil. The latter value is remarkably consistent with the value first reported by Sachse et al. (2012). |
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 |
|
Cited Authors |
|
Originators |
|
Publishers |
|
Theme keywords | Global Change Master Directory (GCMD) Science Keywords
|
Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
|
Place keywords |
|
Use Constraints |
|
Access Constraints |
|
Fees |
|
Last Modified: 2023-09-01
For questions about the information on this page, please email: ncei.info@noaa.gov