noaa-ocean-19560 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 - Bering Sea and Western Arctic Coretop Reflectance Database 2015-12-09 publication noaa-ocean-19560 NCEI DSI 1200_01 Nwaodua, E.C. originator Nwaodua, E.C. author Ortiz, J.D. originator Ortiz, J.D. 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 Paleoceanography. The data include parameters of paleoceanography with a geographic location of Bering Sea, North Pacific Ocean. The time period coverage is from Unavailable begin date to -58 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 climate and ocean circulation derived from marine sediments. 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-ocean.png Paleoclimatology - Paleoceanography PNG Earth Science > Paleoclimate > Ocean/Lake Records Earth Science > Climate Indicators > Paleoclimate Indicators > Ocean/Lake Records 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 > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth 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paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleoceanography earth science > paleoclimate > paleocean > physical properties 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 Ocean > Pacific Ocean > North Pacific Ocean > Bering Sea> Bering Sea and Western Arctic > LATITUDE > LONGITUDE place otherRestrictions Cite as: Nwaodua, E.C.; Ortiz, J.D. (2015-12-09): NOAA/WDS Paleoclimatology - Bering Sea and Western Arctic Coretop Reflectance Database. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/19560. 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. Application of quotient normalization technique to minimize errors in diffuse spectral reflectance data collected under various conditions 2014 publication Nwaodua, Emmanuel C. and Joseph D. Ortiz author Journal of Sedimentary Research publisher https://doi.org/10.2110/jsr.2014.57 HTTPS Web Browser Associated Reference published 2014 Nwaodua, Emmanuel C. and Joseph D. Ortiz, 2014: Application of quotient normalization technique to minimize errors in diffuse spectral reflectance data collected under various conditions. Journal of Sedimentary Research, 84, 729-742, 10.2110/jsr.2014.57 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: Missing Start_Date to 2008 AD; Date Range: cal yr BP to -58 cal yr BP; -135 130 50 80 1950 2008 STUDY NOTES: These are the reflectance data and varimax rotated principle component analysis from the coretop dataset in publications. Magnitudes of the correlations between each component spectrum and the derivative spectrum for a known assemblage: Correlation r-value VPCA1 vs. Chlorite+Muscovite 0.856 VPCA2 vs. Geothite+phycoerythrin+phycocyanin 0.838 VPCA3 vs. Smectite 0.753 VPCA4 vs. Calcite+Dolomite 0.909 VPCA5 vs. Illite+chl_a -0.891 Provided Keywords: Bering Sea, Western Arctic, Diffuse spectral reflectance , visible derivative spectroscopy, varimax-rotated principal component analysis, sediment provenance ABSTRACT SUPPLIED BY ORIGINATOR: Visible and near-infrared (VNIR) derivative spectroscopy of diffuse spectral reflectance (DSR) data can be a potent method to extract lithological information from sediment cores. However, synthesis of multiple DSR data sets collected with different instruments from sediment obtained at different times could subject the DSR measurements to errors arising from disparity in depositional environment, sample processing methods, and storage conditions. Here we apply a quotient normalization technique to set these data in a common reference frame as a first step in our VNIR derivative spectroscopic analysis. The effectiveness of the quotient normalization technique is illustrated with samples from the Bering and west Arctic Sea shelves; this is because of access to sediment samples collected by several coring expeditions at different times in the past over a range of locations. DSR measurements were obtained from eleven groups of core samples processed under two conditions. Under one of the conditions, they were quotient normalized, while in the other, they were not. Lithological proxies in these cores, from both conditions, were extracted using varimax-rotated, principal-component analysis (VPCA). These lithologies are chlorite + muscovite, goethite + phycoerythrin + phycocyanin, smectite, calcite + dolomite, and illite + chlorophyll a. These lithological proxies were then plotted spatially using GIS kriging software. The spatial distributions of the VPCA extracted lithologies, under the two conditions, were compared with lithologies obtained by previous workers in the study site. The lithologies after quotient normalization were found to be more consistent with previously published results for clay mineralogy determined by X-ray diffraction (XRD). The quotient normalized data also showed a lower variance in the interpolated data sets relative to the second processing condition, which is the norm, used for comparison. We conclude that the quotient normalization technique is an effective scaling tool for minimizing errors from combining DSR data sets collected during multiple coring expeditions. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-ocean-19560 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/19560 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography HTTPS Information NCEI Paleoceanography Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nwaodua2014/nwaodua2014-variance.txt HTTPS Download /contributions_by_author/nwaodua2014/nwaodua2014-variance.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nwaodua2014/nwaodua2014-scores.txt HTTPS Download /contributions_by_author/nwaodua2014/nwaodua2014-scores.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nwaodua2014/NSF_Bering_W_Arctic_Nwaodua_Ortiz_2014.xlsx HTTPS Download /contributions_by_author/nwaodua2014/NSF_Bering_W_Arctic_Nwaodua_Ortiz_2014.xlsx Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nwaodua2014/nwaodua2014-loadings.txt HTTPS Download /contributions_by_author/nwaodua2014/nwaodua2014-loadings.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/nwaodua2014/nwaodua2014-reflect.txt HTTPS Download /contributions_by_author/nwaodua2014/nwaodua2014-reflect.txt Original Data and Full Metadata download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25