# Patriot Hills, West Antarctica Late Pleistocene/Early Holocene dD Data #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: http://www.ncdc.noaa.gov/paleo/study/19423 # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/patriot/patriot2013dd.txt # # Original_Source_URL: # # Archive: Ice Cores # # Parameter_Keywords: hydrogen isotopes #--------------------------------------- # Contribution_Date # Date: 2015-11-07 #--------------------------------------- # Title # Study_Name: Patriot Hills, West Antarctica Late Pleistocene/Early Holocene dD Data #--------------------------------------- # Investigators # Investigators: Turney, C.; Fogwill, C.; Van Ommen, T.D.; Moy, A.D.; Etheridge, D.; Rubino, M.; Curran, M.A.J.; Rivera, A. #--------------------------------------- # Description and Notes # Description: Hydrogen isotope (dD) data from the Blue Ice Area of the Patriot Hills, Ellsworth Mountains, West Antarctica. # Data include deuterium measurements from the Late Pleistocene/Early Holocene blue ice and a shallow snow pit, providing a # new climate record in the South Atlantic sector of Antarctica. # Provided Keywords: Blue Ice Area; katabatic winds; Meridional Overturning Circulation (MOC); sea ice; Southern Annular Mode (SAM); West Antarctic Ice Sheet (WAIS) #--------------------------------------- # Publication # Authors: Chris Turney, Chris Fogwill, Tas D. Van Ommen, Andrew D. Moy, David Etheridge, Mauro Rubino, Mark A. J. Curran, Andres Rivera # Published_Date_or_Year: 2013-10-13 # Published_Title: Late Pleistocene and early Holocene change in the Weddell Sea: a new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica # Journal_Name: Journal of Quaternary Science # Volume: 28 # Issue: 7 # Pages: 697-704 # Report Number: # DOI: 10.1002/jqs.2668 # Online_Resource: http://onlinelibrary.wiley.com/doi/10.1002/jqs.2668/abstract # Abstract: The transition from the late Pleistocene to the Holocene (30000-5000 years ago) was a period of considerable climate variability, which has been associated with changes in deep water formation and the intensity of the Meridional Overturning Circulation. Although numerous records exist across the North Atlantic region, few Antarctic ice core records have been obtained from the south. Here we exploit the potential of upwelling ancient ice - so-called blue ice areas (BIAs) - from the Patriot Hills in the Ellsworth Mountains to derive the first deuterium isotope record (dD) from continental Antarctica south of the Weddell Sea. Gas analysis and glaciological considerations provide a first relative chronology. Inferred temperature trends from the Patriot Hills BIA and snow pit suggest changing climate influences during the transition between the last glacial period and Holocene. Under modern conditions, the interplay between the Antarctic high-pressure system and the Southern Annular Mode appears to play a significant role in controlling katabatic wind flow over the site while the BIA record suggests that greater sea ice extent during the last glacial period was a major control. Our results demonstrate the considerable potential of the Patriot Hills site for reconstructing past climate change in the south Atlantic region. #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Australian Research Council # Grant: FL140100260, FT120100004, LP120200724 #--------------------------------------- # Site Information # Site_Name: Patriot Hills Blue Ice # Location: Antarctica # Country: # Northernmost_Latitude: -80.1 # Southernmost_Latitude: -80.3 # Easternmost_Longitude: -81.4 # Westernmost_Longitude: -81.4 # Elevation: 800 m #--------------------------------------- # Data_Collection # Collection_Name: PH2012dD # First_Year: 30000 # Last_Year: 5000 # Time_Unit: Cal. Year BP # Core_Length: 800 m # Notes: #------------------ # Chronology_Information # Chronology: # #----------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## dist_m Distance along transect of blue ice, , , meters, , , , ,N ## d2HiceSMOW delta2H, ice, , per mil SMOW, , Ice cores, , ,N # #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: dist_m d2HiceSMOW 0 -348.9 5 -347.36 10 -354.02 15 -346.08 20 -322.24 25 -328.61 30 -333.32 35 -342.48 40 -339.58 45 -352.38 50 -345.73 55 -344.76 60 -340.97 65 -336.07 70 -340.5 75 -343.4 80 -356.93 85 -353.93 90 -351.03 95 -339.16 100 -344.94 105 -339.17 110 -338.84 115 -329.15 120 -342.72 125 -349.23 130 -358.56 135 -346.26 140 -360.54 145 -346.78 150 -335.98 155 -348.97 160 -354.33 165 -343.53 170 -346.21 175 -351.63 180 -343.21 185 -342.91 190 -351.38 195 -362.55 200 -345.87 205 -350.23 210 -353.16 215 -374.02 220 -329.23 225 -345.59 230 -346.62 235 -338.47 240 -335.16 245 -367.62 250 -366.62 255 -342.16 260 -354.59 265 -341.22 270 -335.44 275 -329.2 280 -336.48 285 -323.73 290 -342.49 295 -359.57 300 -328.62 305 -340.51 310 -333.82 315 -314.23 320 -289.6 325 -288.2 330 -308.71 335 -312.94 340 -300.29 345 -302.03 350 -266.93 355 -265.34 360 -264.92 365 -259.31 370 -269.87 375 -259.13 380 -271.03 385 -267.45 390 -240.37 395 -266.09 400 -293.99 410 -292.72 420 -246.96 430 -262.01 440 -256.92 450 -271.33 460 -251.57 470 -272.74 480 -252.31 490 -279.75 500 -277.21 510 -282.64 520 -285.91 530 -268.17 540 -280.4 550 -264.69 560 -264.56 570 -269.76 580 -314.24 590 -279.56 600 -295.76 610 -284.97 620 -267.01 630 -281.5 640 -272.3 650 -259.01 660 -269.97 670 -232.15 680 -262.93 690 -265.28 700 -279.29 710 -270.95 720 -264.59 730 -286.91 740 -267.28 750 -288.93 760 -259.33 770 -242.87 780 -270.61 790 -283.56