noaa-cave-38759 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2024-02-06 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Tham Doun Mai Cave, Northern Laos Trace Metal and Stable Isotope Data from 7.6 to 9 ka 2023-11-15 publication doi:10.25921/seqw-yh76 noaa-cave-38759 NCEI DSI 1200_02 NCEI DSI 1200_01 Wood, C.T. originator Wood, C.T. author Johnson, K.R. originator Johnson, K.R. author Lewis, L.E. originator Lewis, L.E. author Wright, K.T. originator Wright, K.T. author Wang, J.K. originator Wang, J.K. author Borsato, A. originator Borsato, A. author Griffiths, M.L. originator Griffiths, M.L. author Mason, A.J. originator Mason, A.J. author Henderson, G.M. originator Henderson, G.M. author Setera, J.B. originator Setera, J.B. author Frisia, S. originator Frisia, S. author Keophanya, S. originator Keophanya, S. author White, J.C. originator White, J.C. author NOAA National Centers for Environmental Information publisher tableDigital 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 Cave. The data include parameters of speleothems with a geographic location of Laos, Southeastern Asia. The time period coverage is from 8968 to 7575 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past temperature, precipitation, and other aspects of climate derived from mineral deposits found in caves. 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. completed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/pc-default-cave.png Paleoclimatology - Speleothem PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Cave Deposits Earth Science > Climate Indicators > Paleoclimate Indicators > Speleothems Earth Science > Paleoclimate > Land Records > Cave Deposits theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems > trace metals earth science > paleoclimate > speleothems > age control earth science > paleoclimate > speleothems > geochemistry earth science > paleoclimate > speleothems > carbon isotopes earth science > paleoclimate > speleothems > oxygen isotopes theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Monsoon Precipitation Reconstruction abrupt climate change hydrology theme What: strontium/calcium; Material: calcite What: depth; Material: null What: strontium/calcium; Material: calcite What: strontium/calcium; Material: calcite What: age; Material: null What: magnesium/calcium; Material: calcite What: depth; Material: null What: delta 18O; Material: calcite What: delta 13C; Material: calcite What: strontium/calcium; Material: calcite What: depth; Material: null What: strontium/calcium; Material: calcite theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Continent > Asia > Southeastern Asia > Laos > Tham Doun Mai Cave > LATITUDE 20.75 > LONGITUDE 102.65 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Wood, C.T.; Johnson, K.R.; Lewis, L.E.; Wright, K.T.; Wang, J.K.; Borsato, A.; Griffiths, M.L.; Mason, A.J.; Henderson, G.M.; Setera, J.B.; Frisia, S.; Keophanya, S.; White, J.C. (2023-11-15): NOAA/WDS Paleoclimatology - Tham Doun Mai Cave, Northern Laos Trace Metal and Stable Isotope Data from 7.6 to 9 ka. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/seqw-yh76. Accessed [date]. otherRestrictions 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. otherRestrictions 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 otherRestrictions None otherRestrictions 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. High-resolution, multiproxy speleothem record of the 8.2 ka event from Mainland Southeast Asia 2023 publication Wood, C. T., Johnson, K. R., Lewis, L. E., Wright, K., Wang, J. K., Borsato, A., Griffiths, M., Mason, A., Henderson, G. M., Setera, J. B., Frisia, S., Keophanhya, S., and White, J. C. author Paleoceanography and Paleoclimatology publisher https://doi.org/10.1029/2023PA004675 HTTPS Web Browser Associated Reference published 2023 Wood, C. T., Johnson, K. R., Lewis, L. E., Wright, K., Wang, J. K., Borsato, A., Griffiths, M., Mason, A., Henderson, G. M., Setera, J. B., Frisia, S., Keophanhya, S., and White, J. C., 2023: High-resolution, multiproxy speleothem record of the 8.2 ka event from Mainland Southeast Asia. Paleoceanography and Paleoclimatology, 38, , 10.1029/2023PA004675 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 8968 cal yr BP to 7575 cal yr BP; 102.65 102.65 20.75 20.75 Study Coordinates 20.75 102.65 -7018 -5625 ABSTRACT SUPPLIED BY ORIGINATOR: The 8.2 ka event is the most significant global climate anomaly of the Holocene epoch, but a lack of records from Mainland Southeast Asia (MSEA) currently limits our understanding of the spatial and temporal extent of the climate response. A newly developed speleothem record from Tham Doun Mai Cave, Northern Laos provides the first high resolution record of this event in MSEA. Our multiproxy record (d18O, d13C, Mg/Ca, Sr/Ca, and petrographic data), anchored in time by 9 U-Th ages, reveals a significant reduction in local rainfall amount and weakening of the monsoon at the event onset at ~8.29 +/- 0.03 ka BP. This response lasts for a minimum of ~170 years, similar to event length estimates from other speleothem d18O monsoon records. Interestingly, however, our d13C and Mg/Ca data, proxies for local hydrology, show that abrupt changes to local rainfall amounts began decades earlier (~70 years) than registered in the d18O. Moreover, the d13C and Mg/Ca also show that reductions in rainfall continued for at least ~200 years longer than the weakening of the monsoon inferred from the d18O. Our interpretations suggest that drier conditions brought on by the 8.2 ka event in MSEA were felt beyond the temporal boundaries defined by d18O-inferred monsoon intensity, and an initial wet period (or precursor event) may have preceded the local drying. Most existing Asian Monsoon proxy records of the 8.2 ka event may lack the resolution and/or multiproxy information necessary to establish local and regional hydrological sensitivity to abrupt climate change. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/seqw-yh76 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/38759 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/speleothem HTTPS Information NCEI Cave Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/speleothem/asia/laos/wood2023/wood2023-tm-17_tm.txt HTTPS Download /speleothem/asia/laos/wood2023/wood2023-tm-17_tm.txt Speleothem download https://www.ncei.noaa.gov/pub/data/paleo/speleothem/asia/laos/wood2023/wood2023-tm-17_srca_synchrotron.txt HTTPS Download /speleothem/asia/laos/wood2023/wood2023-tm-17_srca_synchrotron.txt Speleothem download https://www.ncei.noaa.gov/pub/data/paleo/speleothem/asia/laos/wood2023/wood2023-tm-17_iso.txt HTTPS Download /speleothem/asia/laos/wood2023/wood2023-tm-17_iso.txt Speleothem download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21