# ITASE 330 Year Antarctic Ice Core Snow Accumulation Data #----------------------------------------------------------------------- # 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/22711 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/itase-d66accum.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Ice Core # # Dataset DOI: # # Parameter_Keywords: accumulation #-------------------- # Contribution_Date # Date: 2017-09-22 #-------------------- # File_Last_Modified_Date # Date: 2017-09-22 #-------------------- # Title # Study_Name: ITASE 330 Year Antarctic Ice Core Snow Accumulation Data #-------------------- # Investigators # Investigators: Frezzotti, M.; Scarchilli, C.; Becagli, S.; Proposito, M.; Urbini, S. #-------------------- # Description_Notes_and_Keywords # Description: Snow accumulation data from 2 ITASE Antarctic ice cores. # No thinning function applied. Upstream glaciology condition from field data or/and satellite survey (DEM, Landsat etc.): si. # Upstream glaciology influence the SMB stratigraphy: No #-------------------- # Publication # Authors: M. Frezzotti, C. Scarchilli, S. Becagli, M. Proposito, and S. Urbini # Published_Date_or_Year: 2013-02-13 # Published_Title: A synthesis of the Antarctic surface mass balance during the last 800 yr # Journal_Name: The Cryosphere # Volume: 7 # Edition: # Issue: # Pages: 303-319 # Report_Number: # DOI: 10.5194/tc-7-303-2013 # Online_Resource: https://www.the-cryosphere.net/7/303/2013/ # Full_Citation: # Abstract: Global climate models suggest that Antarctic snowfall should increase in a warming climate and mitigate rises in the sea level. Several processes affect surface mass balance (SMB), introducing large uncertainties in past, present and future ice sheet mass balance. To provide an extended perspective on the past SMB of Antarctica, we used 67 firn/ice core records to reconstruct the temporal variability in the SMB over the past 800 yr and, in greater detail, over the last 200 yr. Our SMB reconstructions indicate that the SMB changes over most of Antarctica are statistically negligible and that the current SMB is not exceptionally high compared to the last 800 yr. High-accumulation periods have occurred in the past, specifically during the 1370s and 1610s. However, a clear increase in accumulation of more than 10% has occurred in high SMB coastal regions and over the highest part of the East Antarctic ice divide since the 1960s. To explain the differences in behaviour between the coastal/ice divide sites and the rest of Antarctica, we suggest that a higher frequency of blocking anticyclones increases the precipitation at coastal sites, leading to the advection of moist air in the highest areas, whereas blowing snow and/or erosion have significant negative impacts on the SMB at windy sites. Eight hundred years of stacked records of the SMB mimic the total solar irradiance during the 13th and 18th centuries. The link between those two variables is probably indirect and linked to a teleconnection in atmospheric circulation that forces complex feedback between the tropical Pacific and Antarctica via the generation and propagation of a large-scale atmospheric wave train. #------------------ # Publication # Authors: O. Magand, M. Frezzotti, M. Pourchet, B. Stenni, L. Genoni and M. Fily # Published_Date_or_Year: 2004-01-01 # Published_Title: Climate variability along latitudinal and longitudinal transects in East Antarctica # Journal_Name: Annals of Glaciology # Volume: 39 # Edition: # Issue: # Pages: 351-358 # Report_Number: # DOI: 10.3189/172756404781813961 # Online_Resource: # Full_Citation: # Abstract: #------------------ # Funding_Agency # Funding_Agency_Name: PNRA # Grant: ITASE2001 #------------------ # Site_Information # Site_Name: D66 # Location: Antarctica # Country: # Northernmost_Latitude: -68.94 # Southernmost_Latitude: -68.94 # Easternmost_Longitude: 136.94 # Westernmost_Longitude: 136.94 # Elevation: 2333 m #------------------ # Data_Collection # Collection_Name: D66Accum # Earliest_Year: 1864 # Most_Recent_Year: 2003 # Time_Unit: AD # Core_Length: 49 # Notes: mean annual accumulation rate 233 mm w.e./year (Tambora-present); 2002-2003 values from stake measurements #------------------ # Chronology_Information # Chronology: # #---------------- # Variables # # Data variables follow are preceded by "##" in columns one and two. # Data line variables format: one per line, shortname-tab-variable components (what, material, error, units, seasonality, data type,detail, method, C or N for Character or Numeric data, free text) # ## age_AD age, , , AD, , , , ,N, ## accum accumulation rate, snow, , kg/m2/yr, annual, ice core, annual counting by (nssSO4 etc.),,N, # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: # age_AD accum 2003 153 2002 242 2001 180 2000 218 1999 182 1998 196 1997 240 1996 229 1995 236 1994 168 1993 228 1992 246 1991 180 1990 212 1989 249 1988 165 1987 170 1986 263 1985 281 1984 131 1983 182 1982 124 1981 200 1980 245 1979 222 1978 117 1977 64 1976 275 1975 173 1974 215 1973 126 1972 227 1971 246 1970 205 1969 125 1968 300 1967 127 1966 272 1965 170 1964 265 1963 240 1962 224 1961 218 1960 189 1959 209 1958 211 1957 217 1956 196 1955 189 1954 319 1953 153 1952 348 1951 213 1950 221 1949 208 1948 184 1947 208 1946 119 1945 178 1944 207 1943 239 1942 188 1941 189 1940 198 1939 208 1938 282 1937 133 1936 209 1935 197 1934 126 1933 205 1932 214 1931 184 1930 290 1929 198 1928 192 1927 211 1926 251 1925 188 1924 188 1923 151 1922 238 1921 181 1920 224 1919 192 1918 194 1917 226 1916 159 1915 267 1914 155 1913 186 1912 167 1911 224 1910 170 1909 333 1908 233 1907 165 1906 170 1905 203 1904 261 1903 266 1902 193 1901 169 1900 245 1899 190 1898 326 1897 265 1896 191 1895 95 1894 211 1893 130 1892 339 1891 294 1890 130 1889 194 1888 181 1887 254 1886 104 1885 171 1884 132 1883 296 1882 185 1881 104 1880 234 1879 270 1878 204 1877 198 1876 142 1875 232 1874 300 1873 280 1872 170 1871 189 1870 266 1869 107 1868 135 1867 215 1866 168 1865 135 1864 202