noaa-cave-9791 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Tzabnah Cave, Mexico 1500 Year Speleothem Oxygen Isotope Data 2010-09-15 publication noaa-cave-9791 NCEI DSI 1200_01 Medina-Elizalde, M. originator Medina-Elizalde, M. author Burns, S.J. originator Burns, S.J. author Lea, D.W. originator Lea, D.W. author Asmerom, Y. originator Asmerom, Y. author von Gunten, L. originator von Gunten, L. author Polyak, V.J. originator Polyak, V.J. author Vuille, M. originator Vuille, M. author Karmalkar, A. originator Karmalkar, A. 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 Yucatan, Mexico. The time period coverage is from 1463 to -54 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 Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/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 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems > oxygen isotopes theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Monsoon drought theme Continent > North America > Mexico > Yucatan> Tzabnah Cave > LATITUDE 20.75 > LONGITUDE -89.466667 place otherRestrictions Cite as: Medina-Elizalde, M.; Burns, S.J.; Lea, D.W.; Asmerom, Y.; von Gunten, L.; Polyak, V.J.; Vuille, M.; Karmalkar, A. (2010-09-15): NOAA/WDS Paleoclimatology - Tzabnah Cave, Mexico 1500 Year Speleothem Oxygen Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/9791. 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. eng; USA geoscientificInformation Date Range: 487 AD to 2004 AD; Date Range: 1463 cal yr BP to -54 cal yr BP; -89.466667 -89.466667 20.75 20.75 Study Coordinates 20.75 -89.466667 487 2004 STUDY NOTES: Absolutely-dated, high-resolution stalagmite delta18O record from the northwest Yucatán Peninsula that provides a detailed picture of climate variability during the last 1500 years. In 2004 we collected a 45 cm stalagmite specimen, named Chaac after the Maya god of rain, from cave "Tzabnah" in the village of Tecoh. The speleothem time scale is based on 12 absolute U/Th dates. We applied a polynomial and piecewise linear model and found a maximum age difference between these models of 31 years during the Medieval Climate Anomaly time interval. To test the age model in the critical interval defining the TCP we counted laminations and compared the results to the U/Th age model. The average number of laminations in the time interval between CE 918 and 820, which corresponds to 98 Th-years, is 85±10. This test provides an independent confirmation of the U/Th age model. The U/Th date of C.E. 942 corresponding to the onset of the Medieval Climate Anomaly in Chaac is comparable to the age indicated by the well-dated (Th-dating errors <=5 years) subtropical China stalagmite d18O record for this same event (Zhang et al., 2008). This observation and the laminae counting suggest that the error in the absolute chronology in Chaac is no larger than ±10 years during the Terminal Classic Period. Tzabnah Cave, Tecoh, Yucatán, Mexico: 20°43.83'N, 89°28.47'W, 20 m above sea level. ADDITIONAL REFERENCE: Zhang, P., et al., 2008. A test of climate, sun, and culture relationships from an 1810-year Chinese cave record. Science, Vol. 322, pp. 940-942. ABSTRACT SUPPLIED BY ORIGINATOR: The decline of the Classic Maya civilization was complex and geographically variable, and occurred over a ~150-year interval, known as the Terminal Classic Period (TCP, C.E. 800-950). Paleoclimate studies based on lake sediments from the Yucatán Peninsula lowlands suggested that drought prevailed during the TCP and was likely an important factor in the disintegration of the Classic Maya civilization. The lacustrine evidence for decades of severe drought in the Yucatán Peninsula, however, does not readily explain the long 150-year socio-political decline of the Classic Maya civilization. Here we present a new, absolute-dated, high resolution stalagmite d18O record from the northwest Yucatán Peninsula that provides a much more detailed picture of climate variability during the last 1500 years. Direct calibration between stalagmite d18O and rainfall amount offers the first quantitative estimation of rainfall variability during the Terminal Classic Period. Our results show that eight severe droughts, lasting from 3 to 18 years, occurred during major depopulation events of Classic Maya city-states. During these droughts, rainfall was reduced by 52% to 36%. The number and short duration of the dry intervals help explain why the TCP collapse of the Mayan civilization occurred over 150 years. DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern distributor In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media. Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-cave-9791 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/9791 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem HTTPS Information NCEI Cave Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/mexico/tzabnah2010.txt HTTPS Download /speleothem/northamerica/mexico/tzabnah2010.txt Speleothem download https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/mexico/tzabnah2010.xls HTTPS Download /speleothem/northamerica/mexico/tzabnah2010.xls Speleothem download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25