# australia_ausl001 - Dove River Road - Breitenmoser Tree Ring Chronology Data
#-----------------------------------------------------------------------
#		World Data Center for Paleoclimatology, Boulder
#				and
#		NOAA Paleoclimatology Program
#-----------------------------------------------------------------------
# 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:
#
# Original_Source_URL:
#
# Description/Documentation lines begin with #
# Data lines have no #
#
# Archive: Tree Rings
#--------------------
# Contribution_Date
#	Date: 2016-01-07
#--------------------
# Title
#	Study_Name: australia_ausl001 - Dove River Road - Breitenmoser Tree Ring Chronology Data
#--------------------
# Investigators
#	Investigators:  Breitenmoser, P.; Bronnimann, S.; Frank, D.
#--------------------
# Description_and_Notes
#	Description: Data from Breitenmoser 2014 Journal of past Climate supplementary, see publication for ARSTAN standardization details
#--------------------
# Publication
#	Authors: Breitenmoser, P.; Bronnimann, S.; Frank, D.
#	Published_Date_or_Year: 2014-03-11
#	Published_Title: Forward modelling of tree-ring width and comparison with a global network of tree-ring chronologies
#	Journal_Name: Climate of the Past
#	Volume: 10 
#	Edition:
#	Issue:
#	Pages: 437-449
#	DOI: 10.5194/cp-10-437-2014
#	Online_Resource: www.clim-past.net/10/437/2014/
#	Full_Citation:
#	Abstract: We investigate relationships between climate and tree-ring data on a global scale using the process-based Vaganov–Shashkin Lite (VSL) forward model of tree-ring width formation. The VSL model requires as inputs only latitude, monthly mean temperature, and monthly accumulated precipitation. Hence, this simple, process-based model enables ring-width simulation at any location where monthly climate records exist. In this study, we analyse the growth response of simulated tree rings to monthly climate conditions obtained from the CRU TS3.1 data set back to 1901. Our key aims are (a) to assess the VSL model performance by examining the relations between simulated and observed growth at 2287 globally distributed sites, (b) indentify optimal growth parameters found during the model calibration, and (c) to evaluate the potential of the VSL model as an observation operator for data-assimilation-based reconstructions of climate from tree-ring width. The assessment of the growth-onset threshold temperature of approximately 4–6 C for most sites and species using a Bayesian estimation approach complements other studies on the lower temperature limits where plant growth may be sustained. Our results suggest that the VSL model skilfully simulates site level treering series in response to climate forcing for a wide range of environmental conditions and species. Spatial aggregation of the tree-ring chronologies to reduce non-climatic noise at the site level yielded notable improvements in the coherence between modelled and actual growth. The resulting distinct and coherent patterns of significant relationships between the aggregated and simulated series further demonstrate the VSL model’s ability to skilfully capture the climatic signal contained in tree-ring series. Finally, we propose that the VSL model can be used as an observation operator in data assimilation approaches to reconstruct past climate.
#--------------------
# Funding_Agency
#	Funding_Agency_Name: Swiss National Science Foundation
#	Grant:
#--------------------
# Site_Information
#	Site_Name: Dove River Road
#	Location:
#	Country: Australia
#	Northernmost_Latitude: -41.58
#	Southernmost_Latitude: -41.58
#	Easternmost_Longitude: 146.0
#	Westernmost_Longitude: 146.0
#	Elevation: 680 m
#--------------------
# Data_Collection
#	Collection_Name: australia_ausl001B
#	Earliest_Year: 1860
#	Most_Recent_Year: 1975
#	Time_Unit: y_ad
#	Core_Length:
#	Notes: {"sensitivity":"temperature"}{"T1":"3.59262974953"}{"T2":"13.7093795197"}{"M1":"0.0223012685133"}{"M2":"0.518446946797"}
#--------------------
# Species
#	Species_Name: celery top pine
#	Species_Code: PHAS
#--------------------
# 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 (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data)
#
##age	age, , ,years AD, , , , ,N
##trsgi	tree ring standardized growth index, tree ring, ,percent relative to mean growth, , Tree Rings, , ,N
#
#--------------------
# Data:
# Data lines follow (have no #)
# Data line format - tab-delimited text, variable short name as header
# Missing Values: nan
#
age	trsgi
1860	0.877
1861	0.955
1862	0.914
1863	0.727
1864	0.986
1865	0.807
1866	0.867
1867	0.984
1868	0.909
1869	0.78
1870	1.062
1871	1.019
1872	0.976
1873	1.009
1874	1.078
1875	0.901
1876	1.161
1877	1.059
1878	0.9
1879	1.076
1880	0.985
1881	1.239
1882	0.968
1883	1.184
1884	1.319
1885	1.001
1886	1.216
1887	1.138
1888	1.424
1889	0.851
1890	1.199
1891	1.416
1892	1.047
1893	1.252
1894	1.203
1895	1.228
1896	1.253
1897	1.067
1898	1.177
1899	1.177
1900	1.386
1901	0.991
1902	1.254
1903	0.968
1904	1.289
1905	1.369
1906	1.02
1907	1.267
1908	0.827
1909	1.284
1910	0.814
1911	1.224
1912	0.754
1913	1.166
1914	1.038
1915	0.856
1916	1.344
1917	1.191
1918	1.303
1919	0.988
1920	1.05
1921	1.064
1922	1.117
1923	0.966
1924	0.653
1925	0.453
1926	0.538
1927	0.908
1928	0.374
1929	0.558
1930	0.239
1931	0.873
1932	0.625
1933	0.921
1934	0.223
1935	0.982
1936	0.601
1937	0.976
1938	0.806
1939	0.895
1940	1.394
1941	0.749
1942	1.074
1943	0.715
1944	1.186
1945	1.21
1946	0.651
1947	0.636
1948	1.045
1949	1.114
1950	0.849
1951	0.963
1952	1.501
1953	0.988
1954	1.333
1955	0.824
1956	0.973
1957	1.443
1958	0.574
1959	0.6
1960	0.974
1961	0.675
1962	1.228
1963	1.071
1964	1.07
1965	1.159
1966	0.352
1967	0.685
1968	0.652
1969	1.021
1970	0.904
1971	0.942
1972	1.299
1973	1.148
1974	1.357
1975	1.879