# Maine Bogs, Late Holocene Testate Amoebae Water Table Depth Reconstructions #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/23088 # Online_Resource_Description: Landing Page for this study. # # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/noaa-templates/data-version-1.0.0/Sidney.Clifford.2013.txt # Online_Resource_Description: This file. NOAA WDS Paleo formatted metadata and data for version 1.0.0 of this dataset. # # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/NAm2kHydro-2017/data-version-1.0.0/Sidney.Clifford.2013.lpd # Online_Resource_Description: Linked Paleo Data (LiPD) formatted file containing the same metadata and data as this file, for version 1.0.0 of this dataset. # # Original_Source_URL: URL pending from NOAA-Paleo # Description/Documentation lines begin with # # Data lines have no # # # Archive: bog # Parameter_Keywords: earth science>paleoclimate>reconstructions>ground water # Dataset_DOI: # #------------------ # Contribution_Date # Date: 2017-11-13 #------------------ # File_Last_Modified_Date # Modified_Date: 2017-11-13 #------------------ # Title # Study_Name: Maine Bogs, Late Holocene Testate Amoebae Water Table Depth Reconstructions #------------------ # Investigators # Investigators: Clifford, M.J.;Booth, R.K. #------------------ # Description_Notes_and_Keywords # Description: #------------------ # Publication # Authors: Clifford, M.J. & Booth, R.K. # Published_Date_or_Year: 2013 # Published_Title: Increased probability of fire during late Holocene droughts in northern New England # Journal_Name: Climatic Change # Volume: 119 # Edition: # Issue: 3-4 # Pages: 693-704 # Report: # DOI: 10.1007/s10584-013-0771-y # Online_Resource: doi.org # Full_Citation: # Abstract: Understanding the role of fire in the Earth system, and particularly regional controls on its frequency and severity, is critical to risk assessment. Charcoal records from lake sediment and fire-scar networks from long-lived tree species have improved our understanding of long-term relationships between fire events and climate. This work has primarily focused on historically fire-prone ecosystems and regions. In the northeastern USA, where wildfire has been relatively infrequent in historical times, fire-risk assessments have incorporated little-to-no pre-historical data and little is known about long-term fire-climate relationships. We developed coupled, high-resolution records of moisture variability and fire from three ombrotrophic peatlands in Maine using testate amoebae and analysis of microscopic charcoal. Water-table depth reconstructions among the three sites were generally coherent, with high-magnitude dry and wet events corresponding within the uncertainty of age-depth models. At all sites, there was a significantly higher probability of fire events during high-magnitude droughts. However, although prolonged droughts were widespread and associated with higher probability of fire, the fire events were rarely synchronous among sites, with the exception of ~550 years before present (yr BP) when all three sites experienced both drought and fire. While fire has been relatively uncommon in the northeastern USA during the past century, our records clearly highlight the potential vulnerability of the region to future drought and fire impacts. Results also demonstrate the utility of coupled records of fire and climate in understanding regional fire-climate dynamics. #------------------ # Funding_Agency # Funding_Agency_Name: # Grant: #------------------ # Site_Information # Site_Name: Sidney Bog # Location: Maine # Country: # Northernmost_Latitude: 44.39 # Southernmost_Latitude: 44.39 # Easternmost_Longitude: -69.78 # Westernmost_Longitude: -69.78 # Elevation: 91 #------------------ # Data_Collection # Collection_Name: Sidney.Clifford.2013 # Earliest_Year: 2904.5 # Most_Recent_Year: -58.2 # Time_Unit: BP # Core_Length: # Notes: #------------------ # Species # Species_Name: # Species_Code: # Common_Name: #------------------ # Chronology: # #------------------ # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components ( 10 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data, additional_information) # ##year age,,,year CE,,,,,N ##water_table_depth reconstructed water table depth,testate amoebae,,cm,,climate reconstructions;paleolimnology,,, N,calibration with modern dataset ##age age, , , calendar years before present, , , , ,N ##detrended_water_table_depth detrended water table depth, testate amoebae, ,cm, , climate reconstructions;paleolimnology, detrended, , N, detrended to remove millennial-scale variability in the record; which may be unrelated to climate and caused by autogenic factors; such as lateral bog growth; performed using a LOESS curve applied to 1,000 years # #------------------ # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header) # Missing_Values: nan # year water_table_depth age detrended_water_table_depth 2008.2 23.236 -58.2 2.727 1997.0 8.475 -47.0 -12.096 1985.8 21.882 -35.8 1.248 1974.6 20.049 -24.6 -0.647 1963.3 21.896 -13.3 1.138 1952.1 24.192 -2.1 3.371 1921.5 21.632 28.5 0.642 1890.9 14.511 59.1 -6.649 1860.2 26.195 89.8 4.863 1829.6 28.918 120.4 7.413 1799.0 20.962 151.0 -0.719 1761.7 29.175 188.3 7.278 1724.4 20.947 225.6 -1.173 1687.1 17.837 262.9 -4.509 1649.7 33.243 300.3 10.667 1612.4 15.51 337.6 -7.295 1579.3 22.367 370.7 -0.642 1546.2 22.487 403.8 -0.719 1513.0 17.069 437.0 -6.324 1479.9 18.045 470.1 -5.51 1446.8 26.38 503.2 2.714 1435.8 13.578 514.2 -10.105 1424.9 23.838 525.1 0.16 1413.9 20.727 536.1 -2.94 1403.0 27.122 547.0 3.47 1392.0 34.302 558.0 10.667 1343.8 23.54 606.2 -0.011 1295.6 27.448 654.4 3.944 1247.3 24.484 702.7 0.942 1199.1 27.716 750.9 4.041 1150.9 26.864 799.1 3.05 1125.5 34.721 824.5 10.832 1100.1 31.599 849.9 7.663 1074.7 21.353 875.3 -2.537 1049.3 30.219 900.7 6.572 1023.9 18.383 926.1 -4.883 1013.4 27.982 936.6 4.897 1002.9 7.737 947.1 -15.155 992.4 15.176 957.6 -7.519 981.9 18.059 968.1 -4.425 971.4 20.331 978.6 -1.921 950.4 11.983 999.6 -9.758 929.3 24.701 1020.7 3.532 908.3 22.342 1041.7 1.769 887.3 27.484 1062.7 7.478 866.2 25.121 1083.8 5.58 855.5 20.679 1094.5 1.306 844.8 17.779 1105.2 -1.448 834.1 28.832 1115.9 9.69 823.4 28.214 1126.6 9.145 812.7 18.555 1137.3 -0.439 795.3 17.644 1154.7 -1.294 777.8 16.994 1172.2 -1.763 760.4 14.823 1189.6 -3.54 743.0 13.925 1207.0 -3.961 725.5 16.514 1224.5 -0.92 720.6 13.182 1229.4 -4.081 715.6 20.148 1234.4 3.068 710.7 15.071 1239.3 -1.927 705.8 10.187 1244.2 -6.703 700.8 5.805 1249.2 -10.911 693.3 10.772 1256.7 -5.774 685.7 23.427 1264.3 7.025 678.1 21.412 1271.9 5.226 670.6 11.488 1279.4 -4.664 663.0 21.814 1287.0 5.837 652.5 17.984 1297.5 2.069 642.0 16.264 1308.0 0.472 631.5 18.388 1318.5 2.608 621.0 15.635 1329.0 -0.138 610.5 11.331 1339.5 -4.437 605.8 13.227 1344.2 -2.549 601.0 11.816 1349.0 -3.96 596.3 10.103 1353.7 -5.674 591.5 14.217 1358.5 -1.571 586.8 15.84 1363.2 0.052 578.6 17.846 1371.4 2.042 570.5 18.881 1379.5 3.06 562.4 16.277 1387.6 0.43 554.3 19.944 1395.7 4.062 546.1 14.641 1403.9 -1.3 536.2 18.423 1413.8 2.438 526.3 22.75 1423.7 6.675 516.4 17.179 1433.6 1.049 506.5 19.942 1443.5 3.72 496.5 17.562 1453.5 1.269 480.6 9.341 1469.4 -7.125 464.7 9.39 1485.3 -7.264 448.8 9.835 1501.2 -7.039 432.8 15.354 1517.2 -1.72 416.9 18.51 1533.1 1.31 403.0 20.655 1547.0 3.416 389.1 20.359 1560.9 3.127 375.2 16.108 1574.8 -1.131 361.3 13.63 1588.7 -3.604 347.4 25.998 1602.6 8.76 322.3 14.939 1627.7 -2.288 297.2 14.037 1652.8 -3.122 272.2 27.443 1677.8 10.353 247.1 23.298 1702.9 6.319 222.0 18.44 1728.0 1.595 204.2 10.744 1745.8 -6.025 186.4 19.017 1763.6 2.351 168.5 11.967 1781.5 -4.639 150.7 9.437 1799.3 -7.148 132.8 16.158 1817.2 -0.424 119.0 26.56 1831.0 9.966 105.2 18.78 1844.8 2.156 91.4 22.022 1858.6 5.353 77.6 11.726 1872.4 -4.976 63.8 10.776 1886.2 -5.998 46.3 12.573 1903.7 -4.33 28.7 14.485 1921.3 -2.591 11.1 10.596 1938.9 -6.65 -7.5 17.225 1957.5 -0.271 -25.1 10.291 1975.1 -7.489 -33.3 17.122 1983.3 -0.799 -41.5 16.493 1991.5 -1.546 -49.7 11.062 1999.7 -7.126 -58.0 11.228 2008.0 -7.119 -66.2 15.98 2016.2 -2.529 -81.3 15.834 2031.3 -2.986 -96.4 23.455 2046.4 4.312 -111.6 21.231 2061.6 1.76 -126.7 16.248 2076.7 -3.573 -141.8 33.257 2091.8 13.052 -253.8 25.805 2203.8 2.37 -365.8 32.277 2315.8 6.761 -477.8 26.705 2427.8 -0.629 -589.7 31.379 2539.7 2.084 -701.7 41.263 2651.7 9.92 -730.9 39.237 2680.9 7.354 -760.0 34.283 2710.0 1.861 -789.1 29.74 2739.1 -3.221 -818.3 29.74 2768.3 -3.759 -847.4 32.7 2797.4 -1.332 -954.5 24.357 2904.5 -11.596