# northamerica_usa_nv036 - Horse Canyon Ridge - 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:
#
# Online_Resource: https://www.ncdc.noaa.gov/paleo/study/24611
#
# Original_Source_URL:https://www.ncdc.noaa.gov/paleo/study/5117
#
# Description/Documentation lines begin with #
# Data lines have no #
#
# Archive: Tree Rings
#--------------------
# Contribution_Date
#	Date: 2016-01-07
#--------------------
# Title
#	Study_Name: northamerica_usa_nv036 - Horse Canyon Ridge - 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 VaganovÃÂ¢ÃÂÃÂShashkin 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 4ÃÂ¢ÃÂÃÂ6 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 modelÃÂ¢ÃÂÃÂs 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.
#--------------------
#	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: Swiss National Science Foundation
#	Grant:
#--------------------
#	Funding_Agency_Name: National Science Foundation
#	Grant:AGS-1304263
#	Funding_Agency_Name: National Oceanic and Atmospheric Administration
#	Grant:NA14OAR4310176
#------------------
# Site_Information
#	Site_Name: Horse Canyon Ridge
#	Location:
#	Country: United States
#	Northernmost_Latitude: 39.27
#	Southernmost_Latitude: 39.27
#	Easternmost_Longitude: -114.12
#	Westernmost_Longitude: -114.12
#	Elevation: 2347 m
#--------------------
# Data_Collection
#	Collection_Name: northamerica_usa_nv036B
#	Earliest_Year: 1611
#	Most_Recent_Year: 1978
#	Time_Unit: y_ad
#	Core_Length:
#	Notes: {"database":{"database1":"LMR","database2":"Breits"}} {"climateInterpretation":{"basis":"", "climateVariable":"M", "climateVariableDetail":"air", "interpDirection":"positive", "seasonality":"[6, 7, 8]"}}{"VSLite_parameters":{"T1":"4.62755641805","T2":"15.4865680829","M1":"0.0236004341593","M2":"0.50254194339"}}
#--------------------
# Species
#	Species_Name: singleleaf pinyon pine
#	Species_Code: PIMO
#--------------------
# 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
1611	0.958
1612	0.919
1613	0.967
1614	0.817
1615	1.37
1616	1.148
1617	1.293
1618	1.618
1619	1.328
1620	1.135
1621	1.154
1622	0.713
1623	0.959
1624	0.649
1625	1.188
1626	0.621
1627	1.251
1628	0.875
1629	1.073
1630	0.559
1631	0.58
1632	0.267
1633	1.157
1634	0.68
1635	1.249
1636	1.212
1637	0.449
1638	0.762
1639	1.11
1640	1.534
1641	1.274
1642	1.513
1643	1.272
1644	1.214
1645	0.553
1646	0.694
1647	1.175
1648	1.141
1649	1.177
1650	0.965
1651	1.525
1652	0.688
1653	0.739
1654	0.793
1655	0.928
1656	1.047
1657	0.785
1658	0.896
1659	0.712
1660	0.833
1661	0.681
1662	0.954
1663	1.081
1664	1.235
1665	0.821
1666	1.095
1667	1.093
1668	0.568
1669	0.961
1670	0.399
1671	0.686
1672	0.942
1673	1.175
1674	1.364
1675	1.04
1676	1.605
1677	1.397
1678	0.824
1679	1.154
1680	1.459
1681	0.528
1682	0.897
1683	1.254
1684	1.101
1685	1.012
1686	0.111
1687	1.415
1688	1.154
1689	1.102
1690	1.109
1691	1.11
1692	1.05
1693	1.502
1694	0.989
1695	1.066
1696	1.131
1697	1.238
1698	0.959
1699	1.454
1700	0.836
1701	1.136
1702	1.203
1703	0.834
1704	0.888
1705	0.957
1706	0.236
1707	0.495
1708	0.114
1709	0.13
1710	0.647
1711	0.841
1712	1.134
1713	1.278
1714	1.256
1715	1.177
1716	0.894
1717	0.807
1718	0.932
1719	1.472
1720	1.566
1721	0.604
1722	0.449
1723	1.221
1724	1.06
1725	1.525
1726	1.63
1727	1.643
1728	0.993
1729	0.146
1730	1.097
1731	1.273
1732	1.365
1733	0.965
1734	1.065
1735	0.932
1736	0.978
1737	0.536
1738	1.234
1739	0.881
1740	0.966
1741	0.53
1742	1.012
1743	0.835
1744	0.466
1745	0.685
1746	1.483
1747	1.476
1748	0.471
1749	0.975
1750	1.031
1751	1.217
1752	0.357
1753	0.73
1754	0.989
1755	0.763
1756	0.8
1757	0.677
1758	1.24
1759	0.946
1760	1.456
1761	1.277
1762	1.315
1763	0.627
1764	1.439
1765	0.357
1766	0.863
1767	0.876
1768	1.366
1769	1.299
1770	0.996
1771	1.192
1772	0.474
1773	0.474
1774	0.318
1775	1.386
1776	1.17
1777	0.148
1778	0.715
1779	1.054
1780	0.415
1781	0.868
1782	-0.011
1783	0.948
1784	1.136
1785	0.887
1786	0.219
1787	1.198
1788	0.567
1789	1.169
1790	1.432
1791	1.413
1792	1.244
1793	1.131
1794	0.674
1795	0.605
1796	0.947
1797	1.05
1798	0.474
1799	1.376
1800	0.36
1801	0.697
1802	1.544
1803	1.432
1804	0.876
1805	0.541
1806	0.753
1807	1.381
1808	0.84
1809	0.924
1810	1.313
1811	1.612
1812	1.082
1813	0.43
1814	0.868
1815	1.183
1816	1.576
1817	1.222
1818	0.551
1819	1.399
1820	1.432
1821	1.74
1822	1.131
1823	0.922
1824	0.07
1825	1.183
1826	1.213
1827	1.109
1828	1.327
1829	1.14
1830	1.349
1831	0.936
1832	0.894
1833	1.126
1834	0.899
1835	0.237
1836	0.503
1837	1.445
1838	1.43
1839	1.485
1840	0.889
1841	0.973
1842	0.448
1843	0.505
1844	1.046
1845	-0.011
1846	0.66
1847	0.627
1848	0.717
1849	1.76
1850	1.168
1851	0.905
1852	0.582
1853	0.855
1854	1.516
1855	0.844
1856	0.802
1857	0.255
1858	0.777
1859	0.67
1860	0.964
1861	0.476
1862	1.317
1863	0.697
1864	0.658
1865	0.693
1866	1.597
1867	1.57
1868	1.756
1869	1.326
1870	0.758
1871	0.541
1872	0.714
1873	0.873
1874	1.412
1875	1.245
1876	0.964
1877	0.843
1878	0.817
1879	-0.011
1880	1.332
1881	0.921
1882	1.005
1883	1.012
1884	1.501
1885	1.581
1886	0.911
1887	0.808
1888	1.054
1889	0.699
1890	1.412
1891	1.387
1892	0.818
1893	0.486
1894	0.92
1895	0.944
1896	0.8
1897	0.983
1898	1.338
1899	0.46
1900	0.988
1901	1.067
1902	0.721
1903	1.691
1904	0.618
1905	1.286
1906	1.555
1907	1.572
1908	1.031
1909	1.182
1910	0.622
1911	0.747
1912	1.031
1913	1.488
1914	1.638
1915	1.122
1916	1.058
1917	1.574
1918	1.408
1919	1.412
1920	1.679
1921	1.269
1922	1.254
1923	1.602
1924	1.135
1925	1.278
1926	0.972
1927	1.18
1928	1.011
1929	1.328
1930	1.519
1931	0.881
1932	1.202
1933	0.867
1934	-0.01
1935	0.574
1936	0.052
1937	1.058
1938	0.884
1939	0.742
1940	0.434
1941	1.59
1942	1.366
1943	0.853
1944	1.182
1945	1.439
1946	0.971
1947	1.214
1948	0.462
1949	1.247
1950	0.626
1951	0.681
1952	1.428
1953	0.327
1954	0.894
1955	0.866
1956	0.995
1957	0.899
1958	0.839
1959	0.412
1960	0.565
1961	0.638
1962	1.253
1963	1.36
1964	1.226
1965	1.172
1966	0.692
1967	1.42
1968	0.977
1969	1.168
1970	0.892
1971	1.047
1972	0.538
1973	1.437
1974	0.683
1975	1.807
1976	0.914
1977	0.702
1978	0.894