noaa-cave-6097 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 2024-04-17 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Shopov et al. 1996 Cold Water Cave, Iowa Speleothem Luminescence Data 1996-07-01 publication doi:10.25921/ew5m-pb92 noaa-cave-6097 NCEI DSI 1200_02 NCEI DSI 1200_01 Shopov, Y.Y. originator Shopov, Y.Y. 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 Iowa, United States Of America. The time period coverage is from 298 to -32 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 > lithology 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: age; Material: null What: luminescence; Material: calcium carbonate 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 > North America > United States Of America > Iowa > Cold Water Cave - South > LATITUDE 43.18 > LONGITUDE -91.86 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: Shopov, Y.Y. (1996-07-01): NOAA/WDS Paleoclimatology - Shopov et al. 1996 Cold Water Cave, Iowa Speleothem Luminescence Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/ew5m-pb92. 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. 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These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. eng; USA geoscientificInformation Date Range: 1652 CE to 1982 CE; Date Range: 298 cal yr BP to -32 cal yr BP; -91.86 -91.86 43.18 43.18 Study Coordinates 43.18 -91.86 1652 1982 ABSTRACT SUPPLIED BY ORIGINATOR: Calcite speleothems luminescence (Shopov 1987, Shopov et al. 1994) depends exponentially upon soil temperatures that are determined primarily by solar infrared radiation in the case when that cave is covered only by grass or upon air temperatures in case that cave is covered by forest or bush. In the first case, microzonality of luminescence of speleothems can be used as an indirect Solar Insolation (SI) index, but in the second - as an paleotemperature proxy. So, in dependence on the cave site we may speak about ""solar sensitive"" and ""temperature sensitive"" luminescent speleothem records like in treering records, but in our case record may depend either only on temperature or on solar irradiation: - In case of Cold Water Cave (CWC), Iowa, US we obtained high correlation coefficient of 0.9 between the luminescence record and Solar Luminosity Sunspot index (Fig.1) and reconstructed sunspot numbers since 1000 AD with precision within the experimental error of their measurements; - in case of Rats Nest cave (RNC), Alberta, Canada we measured correlation coefficient of 0.67 between luminescence intensity and air temperatures record for the last 100 years (Fig.2) and reconstructed annual air temperatures for last 1500 years at the cave site with estimated error of 0.35 C, while the error of the direct measurements is 0.1 C. Intensity of luminescence was not dependent on actual precipitations and sunspot numbers (zero correlation). Speleothem growth rate variations represent mainly rainfall variations. Speleothem luminescence visualizes annual microbanding we used to derive proxy records of annual precipitations or the cave site. In case of RNC we reconstructed annual precipitations for last 280 years at the cave site with estimated error of 80 mm/year. By comparison of luminescent records with other solar proxy records we obtained a reconstruction of growth rates and precipitations in Bosnek karst region near Duhlata cave (DC), Bulgaria for the last 50000 years, and for the last 6400 years (with averaged time step of 41 years) for Iowa, near CWC. Achieved time step of 6 hours (Fig.3) in speleothem luminescence records allows resolution of several days in some best speleothem samples. Annual luminescence microbanding was used very successfully for relative and absolute dating of speleothems by Autocalibradion dating (Shopov et al. 1991). This dating method appear to be more precise than TAMS 14C and AMS U/Th dating for relative dating of short time intervals and only dating method for speleothems with little uranium, younger than 2000 years. It is demonstrated, that speleothems can be used as natural climatic stations with annual resolution for purposes of climatology and agrometeorology for a time span far exceeding all historic records. 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/ew5m-pb92 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/6097 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/northamerica/usa/iowa/coldwater1996.txt HTTPS Download /speleothem/northamerica/usa/iowa/coldwater1996.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