noaa-cave-40716 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 2025-03-12 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Mawmluh Cave Geochemical Data from 4500 to 3400 Cal Yr BP 2025-01-28 publication doi:10.25921/2k6p-an64 noaa-cave-40716 NCEI DSI 1200_02 NCEI DSI 1200_01 Kathayat, G. originator Kathayat, G. author Cheng, H. originator Cheng, H. author Sinha, A. originator Sinha, A. author Berkelhammer, M.B. originator Berkelhammer, M.B. author Zhang, H. originator Zhang, H. author Duan, P. originator Duan, P. author Li, H. originator Li, H. author Li, X.L. originator Li, X.L. author Ning, Y.F. originator Ning, Y.F. author Edwards, R.L. originator Edwards, R.L. 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 India, Southcentral Asia. The time period coverage is from 4534 to 3366 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 > 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 What: sample thickness; Material: null What: age; Material: null What: delta 18O; Material: calcite What: depth; Material: null What: delta 13C; 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 > Southcentral Asia > India > Mawmluh Cave > LATITUDE 25.2622 > LONGITUDE 91.8167 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: Kathayat, G.; Cheng, H.; Sinha, A.; Berkelhammer, M.B.; Zhang, H.; Duan, P.; Li, H.; Li, X.L.; Ning, Y.F.; Edwards, R.L. (2025-01-28): NOAA/WDS Paleoclimatology - Mawmluh Cave Geochemical Data from 4500 to 3400 Cal Yr BP. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/2k6p-an64. 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. Evaluating the timing and structure of the 4.2 ka event in the Indian summer monsoon domain from an annually resolved speleothem record from Northeast India 2018 publication Kathayat, Gayatri; Hai Cheng; Ashish Sinha; Max Berkelhammer; Haiwei Zhang; Pengzhen Duan; Hanying Li; Xianglei Li; Youfeng Ning; R. Lawrence Edwards author Climate of the Past publisher https://doi.org/10.5194/cp-14-1869-2018 HTTPS Web Browser Associated Reference published 2018 Kathayat, Gayatri; Hai Cheng; Ashish Sinha; Max Berkelhammer; Haiwei Zhang; Pengzhen Duan; Hanying Li; Xianglei Li; Youfeng Ning; R. Lawrence Edwards, 2018: Evaluating the timing and structure of the 4.2 ka event in the Indian summer monsoon domain from an annually resolved speleothem record from Northeast India. Climate of the Past, 14, 1869-1879, 10.5194/cp-14-1869-2018 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 4534 cal yr BP to 3366 cal yr BP; 91.8167 91.8167 25.2622 25.2622 Study Coordinates 25.2622 91.8167 -2584 -1416 STUDY NOTES: Data contributed as part of SISAL v3 Global Speleothem Isotope and Trace Element Database (https://doi.org/10.25921/jajq-qg60). Notes from the SISAL database: Land use: Limestone and carbonaceous sandstone with coal layer. Limestone mine. \ Entity ML.1 and ML.2 (SISAL entity_id = 476, 477): isotope samples were obtained from ML.1 and ML.2 at 125-250 and 182-255 mm, respectively. Depths = 125mm (ML.1) and 182mm (ML.2) are reported here as depth = 0mm. \\ Entity KM-1 (entity_id = 495): Age-depth model inflection at 12ka is due to how the age model dealt with one date with a large error. \\ Entity MWS-1 (entity_id = 62): Mineralogy information could not be retrieved. ABSTRACT SUPPLIED BY ORIGINATOR: A large array of proxy records suggests that the “4.2 ka event” marks an approximately 300-year long period (∼3.9 to 4.2 ka) of major climate change across the globe. However, the climatic manifestation of this event, including its onset, duration, and termination, remains less clear in the Indian summer monsoon (ISM) domain. Here, we present new oxygen isotope (δ18O) data from a pair of speleothems (ML.1 and ML.2) from Mawmluh Cave, Meghalaya, India, that provide a high-resolution record of ISM variability during a period (∼3.78 and 4.44 ka) that fully encompasses the 4.2 ka event. The sub-annually to annually resolved ML.1 δ18O record is constrained by 18 230Th dates with an average dating error of ±13 years (2σ) and a resolution of ∼40 years, which allows us to characterize the ISM variability with unprecedented detail. The inferred pattern of ISM variability during the period contemporaneous with the 4.2 ka event shares broad similarities and key differences with the previous reconstructions of ISM from the Mawmluh Cave and other proxy records from the region. Our data suggest that the ISM intensity, in the context of the length of our record, abruptly decreased at ∼4.0 ka (~±13 years), marking the onset of a multi-centennial period of relatively reduced ISM, which was punctuated by at least two multi-decadal droughts between ∼3.9 and 4.0 ka. The latter stands out in contrast with some previous proxy reconstructions of the ISM, in which the 4.2 ka event has been depicted as a singular multi-centennial drought. 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/10.25921/2k6p-an64 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/40716 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/SISAL-v3/noaa_templates/Kathayat2018-ML.2.txt HTTPS Download /speleothem/SISAL-v3/noaa_templates/Kathayat2018-ML.2.txt Speleothem download https://www.ncei.noaa.gov/pub/data/paleo/speleothem/SISAL-v3/noaa_templates/Kathayat2018-ML.1.txt HTTPS Download /speleothem/SISAL-v3/noaa_templates/Kathayat2018-ML.1.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