noaa-ocean-19602 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 - Arctic Ocean Spectral Reflectance Data During the Quaternary 2016-01-04 publication noaa-ocean-19602 NCEI DSI 1200_01 Ortiz, J.D. originator Ortiz, J.D. author Polyak, L. originator Polyak, L. author Haley, B.A. originator Haley, B.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 Paleoceanography. The data include parameters of paleoceanography with a geographic location of Arctic Ocean. The time period coverage is from Unavailable begin date to Unavailable end date 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 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 > 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 > lithology 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 > Arctic Ocean> Mendeleev Ridge HLY0503-08JPC > LATITUDE 79.59275 > LONGITUDE -172.501583 Ocean > Arctic Ocean> Northwind Ridge P1-92-AR-P39 > LATITUDE 75.845 > LONGITUDE -156.031667 Ocean > Arctic Ocean> Lomonosov Ridge HLY0503-18JPC > LATITUDE 88.450483 > LONGITUDE -146.560417 Ocean > Arctic Ocean> Alpha Ridge HLY0503-14JPC > LATITUDE 84.303267 > LONGITUDE -149.034 Ocean > Arctic Ocean> Northwind Ridge P1-92-AR-P25 > LATITUDE 74.818333 > LONGITUDE -157.365 Ocean > Arctic Ocean> Northwind Ridge P1-93-AR-P23 > LATITUDE 76.955 > LONGITUDE -155.065 place otherRestrictions Cite as: Ortiz, J.D. ; Polyak, L.; Haley, B.A. (2016-01-04): NOAA/WDS Paleoclimatology - Arctic Ocean Spectral Reflectance Data During the Quaternary. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/19602. 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. Is Eccentricity The Pacemaker For Arctic Paleoclimate During The Quaternary? 2014 publication Ortiz, J.D., M. O'Regan, and M. Jakobsson author International Arctic Workshop publisher crossReference sciencePaper eng; USA geoscientificInformation Paleo date information not available. -172.501583 -146.560417 74.818333 88.450483 1950 STUDY NOTES: These are diffuse spectral reflectance data from various cores measured as part of an NSF funded stratigraphic correlation project. Measurements in specular component excluded mode, with 100% UV burst (SCE/100). Values in the stds tables for each core are are replicate measurements of the white calibration standard time for the Konica Minolta CM-2600d. Each instrument was factor- calibrated against its white calibration tile. Standards were measured before collection of measurements on each core section, then between sections and after the completion the last core section.The standard deviation of the white standard measurements provides an estimate of the measurement error of the instrument as a function of wavelength. Provided Keywords: diffuse spectral reflectance ABSTRACT SUPPLIED BY ORIGINATOR: One of the greatest challenges to progress in Arctic paleoclimate is the difficulty associated with developing reliable age constraints for Arctic marine sediment (Alexanderson et al., 2013; Jakobsson et al., 2013). Lack of carbonate material at many sites makes it difficult to employ nanofossil or foraminiferal taxonomies, and in many cases precludes the use of benthic δ18O as a target for orbital tuning (Ortiz, 2011). Likewise, the high inclination of the Arctic and redox changes across glacial-interglacial cycles can pose difficulties for paleomagnetic reconstruction (Darby et al., 2012). As an alternative approach to age model development, we propose cyclo-stratigraphic orbital tuning of a sedimentary paleoclimate proxy derived from geochemical and physical properties data. Our tuning target is sedimentary %Mn, which varies in response to surficial processes, riverine input and marine redox cycling across glacial-interglacial cycles (Jakobsson, et al. 2000; Löwemark, et al. 2008; Löwemark, et al. 2013). Visible derivative spectroscopy using diffuse spectral reflectance (DSR) data (400-700nm at 10nm resolution with a 3 mm spot-size) was measured at 1 cm resolution on the wet, split surface of the sediment cores using a CM2600d spectrophotometer (Ortiz, 2011). The cores were wrapped in Glad-wrap to protect the integration sphere of the CM-2600d spectrophotometer (Ortiz, 2011). The resulting data was derivative transformed to remove scattering, grain-size, and wetness effects, and then the resulting correlation matrix of the data was transformed using varimax-rotated, principal component analysis. Principle component regression of %Mn measured by XRF using an Innov-X Alpha-series analyzer against the difference between first and second of the DSR component scores was then used to generate a %Mn record at the full measurement resolution of the DSR data. The tuning target selected is the La2010 solution a eccentricity reconstruction (Laskar et al. 2011). We select eccentricity as a suitable initial tuning target because the eccentricity signal, should be enhanced at these high latitudes, the generally low sedimentation rates in the Arctic provide a suitably long record for comparison against the tuning target, and eccentricity has been linked to variations in ice volume (Lisiecki, 2010). The tuning process consists of calculating the wavelet spectrum for each record as a function of depth to yield lithofacies cycle lengths. The %Mn record for each core is then filtered using an infinite impulse response (IIR) band-pass filter centered on each downcore lithofacies cycle. The extracted filters are then mapped against the eccentricity template to generate a depth to age transfer function, assuming no phase lag between the eccentricity target and the sedimentary %Mn response. The quality of the tuning process is determined by evaluating the linearity of the depth-age transfer functions and by plotting the unfiltered %Mn curves on age to evaluate their fit. We have thus far applied this method to six cores raised from different ridges and basins of the Arctic. The resulting depth-age curves were remarkably linear (Figure 1), indicating little need to distort the sedimentary record to achieve a very strong fit between eccentricity and the filtered %Mn cycles. The stratigraphic cycle that best matched the eccentricity-tuning target varied in length from 40 cm to 274 cm due to variable sedimentation rates between sites (Figure 2a). The amplitude modulation of the filtered %Mn record matched that of the eccentricity template reasonably well, and the fit improved, when the next longer sedimentary cycle – presumably related to the 400 ka eccentricity cycle - was combined with the shorter, 100k-related %Mn component (Figure 2b). Plotting the %Mn records as a function of age resulted in a considerable improvement in the visual litho-stratigraphic correlations between records from different locations (Figure 3). These preliminary results demonstrate the great promise of the method as a potential stratigraphic tool for use with Arctic marine sediment. 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Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-ocean-19602 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/19602 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/ortiz2014/HLY05-03-18JPCref.xls HTTPS Download /contributions_by_author/ortiz2014/HLY05-03-18JPCref.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-ar-p39-stds.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-ar-p39-stds.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-ar-p25-stds.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-ar-p25-stds.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-18jpc.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-18jpc.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-ar-p39.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-ar-p39.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-ar-p23-stds.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-ar-p23-stds.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/USGS-P1-92-AR-P39-reflectance.xls HTTPS Download /contributions_by_author/ortiz2014/USGS-P1-92-AR-P39-reflectance.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/HLY05-03-14JPCref.xls HTTPS Download /contributions_by_author/ortiz2014/HLY05-03-14JPCref.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/USGS-P1-93-AR-P23-reflectance.xls HTTPS Download /contributions_by_author/ortiz2014/USGS-P1-93-AR-P23-reflectance.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-ar-p25.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-ar-p25.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/USGS-P1-92-AR-P25-reflectance.xls HTTPS Download /contributions_by_author/ortiz2014/USGS-P1-92-AR-P25-reflectance.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-14jpc-stds.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-14jpc-stds.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-14jpc.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-14jpc.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-08jpc-stds.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-08jpc-stds.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-18jpc-stds.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-18jpc-stds.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-08jpc.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-08jpc.txt Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/HLY05-03-08JPCref.xls HTTPS Download /contributions_by_author/ortiz2014/HLY05-03-08JPCref.xls Original Data and Full Metadata download https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/ortiz2014/ortiz2014-ar-p23.txt HTTPS Download /contributions_by_author/ortiz2014/ortiz2014-ar-p23.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