# Strait of Juan de Fuca Geoduck Clam Growth Increment Data and SST Reconstruction #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original reference 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/cdo/f?p=519:1:::::P1_STUDY_ID:6269 # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/24611 # # Original_Source_URL: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/strom2004/strom2004.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Climate Reconstructions # -------------------- # Contribution_date # Date: 2014-12-10 # -------------------- # Title # Study_Name: Strait of Juan de Fuca Geoduck Clam Growth Increment Data and SST Reconstruction # -------------------- # Investigators # Investigators: Strom, A.S.; Francis, R.C.; Mantua, N.J.; Miles, E.L.; Peterson, D.L. # -------------------- # Description_and_Notes # Description: Geoduck clam (Panopea abrupta) growth increment measurements, and mean growth chronology from the Strait of Juan de Fuca, Washington State, USA. Site: Protection Island, 48.12N, 122.95W, 8-20m water depth. The chronology was used to reconstruct SST to 1877 for the nearby Race Rocks station. Growth data were obtained by extracting at least three thin cross-sections from the hinge area of each shell. Digital images were captured at magnifications ranging from 25-400x along a straight transect from the origin of growth to the outer edge. Ring widths were measured perpendicular to the growth line axis, and standardized using a modified negative exponential curve. Annual growth indices were computed as the ratio of actual to modeled growth. To compute the growth chronology, measurement series were averaged using a biweight robust mean. The standardized, dimensionless growth measurements are located in the file ‘growthdata’. Also given are the instrumental SST data for Race Rocks, the reconstructed Race Rocks SST series, and prediction intervals for the reconstruction. Data is located in the file ‘chronology’ and is reported in degrees Celsius. # # -------------------- # Publication # Authors: A.S. Strom, R. C. Francis, N.J. Mantua, E.L. Miles, D. L. Peterson # Published_Date_or_Year: 2004-03-19 # Published_Title: North Pacific Climate recorded in growth rings of geoduck clams: A new tool for paleoenvironmental reconstruction # Journal_Name: Geophysical Research Letters # Volume: 31 # Edition: # Issue: L06206 # Pages: # DOI: 10.1029/2004GL019440 # Online_Resource: # Full_Citation: # Abstract: To better understand North Pacific climate variability at interannual to interdecadal scales, we have developed a new tool for paleoenvironmental reconstruction. We show that growth rings in long-lived geoduck clams (Panopea abrupta) can provide high quality, annually resolved records of sea-surface temperature (SST). We used shell samples from the Strait of Juan de Fuca, in Washington State, to extend the coastal SST record back to 1877. The spatial correlation pattern between the growth index and gridded SSTs bears a strong resemblance to the leading pattern of interdecadal global SST variations and underscores the remarkable long-distance coherence evident among coastal SST records in the northeast Pacific. Our results also indicate that the 1990s was the warmest decade in this region since at least the 1850s. # -------------------- # Authors: Anderson, D.M., Tardif, R., Horlick, K., Erb, M.P., Hakim, G.J., Noone, D., Perkins, W.A., and E. Steig # Published_Date_or_Year: 2018 # Published_Title: Additions to the last millennium reanalysis multi-proxy database # Journal_Name: Data Science Journal # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: # Online_Resource: # Full_Citation: Anderson, D.M., Tardif, R., Horlick, K., Erb, M.P., Hakim, G., J., Noone, D., Perkins, W.A., and E. Steig, submitted. Additions to the last millennium reanalysis multi-proxy database. Data Science Journal. # Abstract: Progress in paleoclimatology increasingly occurs via data syntheses. We describe additions to a collection prepared for use in paleoclimate state estimation, specifically the Last Millennium Reanalysis (LMR). The 2290 additional series include 2152 tree ring chronologies and 138 other series. They supplement the collection used previously and together form a database titled LMRdb 1.0.0. The additional data draws from lake core, ice core, coral, speleothem, and tree ring archives, using published data primarily from the NOAA Paleoclimatology archive and a set of tree ring width chronologies standardized from raw International Tree Ring Data Bank ring width series. In contrast to many previous paleo compilations, the data were not selected (screened) on the basis of their environmental correlation, multi-century length, or other attributes. The inclusion of proxies sensitive to moisture and other environmental variables expands their use in data assimilation. A preliminary calibration using linear regression with mean annual temperature reveals characteristics of the proxy series and their relationship to temperature, as well as the noise and error characteristics of the records. The additional records are structured as individual files in the NOAA Paleoclimatology format and archived at NOAA Paleoclimatology (Anderson et al. 2018) and will continue to be improved and expanded as part of the LMR Project. The additions represent a four-fold increase in the number of records available for assimilation, provide expanded geographic coverage, and add additional proxy variables. Applications include data assimilation, proxy system model development, and paleoclimate reconstruction using climate field reconstruction and other methods. #------------------ # Funding_Agency # Funding_Agency_Name: Joint Institute for the Study of the Atmosphere and Ocean # Grant: NA17RJ1232 # -------------------- # Funding_Agency_Name: National Science Foundation # Grant:AGS-1304263 # Funding_Agency_Name: National Oceanic and Atmospheric Administration # Grant:NA14OAR4310176 #------------------ # Site_Information # Site_Name: Protection Island, Strait of Juan de Fuca # Location: North America>United States>Washington # Country: United States # Northernmost_Latitude: 48.12 # Southernmost_Latitude: 48.12 # Easternmost_Longitude: 122.95 # Westernmost_Longitude: 122.95 # Elevation: # -------------------- # Data_Collection # Collection_Name: 04Juan01 # Earliest_Year: 1877 # Most_Recent_Year: 1998 # Time_Unit: y_ad # Notes: {"database":"LMR"} # # -------------------- # 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 (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ##age age,,,years AD,,,,,N ##sst sea surface temperature, , , degrees C, , Climate Reconstructions, , ,N # # -------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing values: NAN # age sst 1877 9.755129162 1878 9.914479891 1879 9.719781937 1880 9.63485579 1881 9.702043277 1882 9.579797504 1883 9.616826974 1884 9.827137837 1885 9.733154976 1886 9.714115644 1887 9.550215408 1888 9.890910219 1889 9.699652244 1890 9.907975847 1891 9.900956465 1892 9.749387478 1893 9.623273343 1894 9.655608465 1895 9.651642121 1896 9.61785022 1897 9.600364319 1898 9.484596789 1899 9.410161655 1900 9.707136425 1901 9.810997713 1902 9.995684765 1903 9.817321917 1904 9.780029655 1905 9.876663808 1906 9.920449993 1907 9.845324208 1908 9.899521221 1909 9.51082816 1910 9.385697773 1911 9.468705317 1912 9.567210231 1913 9.575927982 1914 9.701077245 1915 9.62316195 1916 9.649946421 1917 9.669858464 1918 9.697847768 1919 9.531411598 1920 9.412839945 1921 9.667579142 1922 9.351137896 1923 9.375242284 1924 9.294091796 1925 9.737212708 1926 9.860322028 1927 9.805978033 1928 9.79174066 1929 9.765576779 1930 9.470092153 1931 10.00535387 1932 9.83080695 1933 9.535677223 1934 9.708766311 1935 10.02303494 1936 9.515722905 1937 9.756944804 1938 10.01944368 1939 10.13801249 1940 10.02282467 1941 9.820984325 1942 9.629321656 1943 9.535381569 1944 9.61353673 1945 9.632962476 1946 9.433402185 1947 9.816699457 1948 9.569857159 1949 9.412826194 1950 9.674231746 1951 9.350497601 1952 9.269583606 1953 9.419489051 1954 9.567209786 1955 9.121715354 1956 9.27549323 1957 9.30174275 1958 9.875624174 1959 10.05022393 1960 9.733413233 1961 9.940820363 1962 9.73506929 1963 9.439212066 1964 9.703204883 1965 9.414991699 1966 9.265067271 1967 9.514532286 1968 9.561927215 1969 9.286171757 1970 9.598105662 1971 9.137145393 1972 9.261979917 1973 9.166206104 1974 9.465981664 1975 9.334178625 1976 9.145251286 1977 9.339746759 1978 9.686924482 1979 10.0520227 1980 9.315651576 1981 9.635562861 1982 10.00985265 1983 10.03931877 1984 10.49508466 1985 9.81703484 1986 9.786820311 1987 9.984632124 1988 9.763839767 1989 9.910720811 1990 9.55963683 1991 10.261585 1992 9.989674617 1993 10.20527648 1994 10.122428 1995 10.70518549 1996 10.1641243 1997 10.0561854 1998 10.52067226