ÃÂ¯ÃÂ»ÃÂ¿# northamerica_usa_nm031 - Fort Wingate - 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:
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# Online_Resource: https://www.ncdc.noaa.gov/paleo/study/24611
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# Original_Source_URL:https://www.ncdc.noaa.gov/paleo/study/4267
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# Description/Documentation lines begin with #
# Data lines have no #
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# Archive: Tree Rings
#--------------------
# Contribution_Date
#	Date: 2016-01-07
#--------------------
# Title
#	Study_Name: northamerica_usa_nm031 - Fort Wingate - 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 VaganovÃÂ¢ÃÂÃÂ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 4ÃÂ¢ÃÂÃÂ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 modelÃÂ¢ÃÂÃÂ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.
#--------------------
#	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.
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# 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: Fort Wingate
#	Location:
#	Country: United States
#	Northernmost_Latitude: 35.43
#	Southernmost_Latitude: 35.43
#	Easternmost_Longitude: -108.53
#	Westernmost_Longitude: -108.53
#	Elevation: 2268 m
#--------------------
# Data_Collection
#	Collection_Name: northamerica_usa_nm031B
#	Earliest_Year: 1477
#	Most_Recent_Year: 1972
#	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":"4.28007636132","T2":"16.2515963164","M1":"0.0227344352428","M2":"0.464827741901"}}
#--------------------
# Species
#	Species_Name: pinyon pine
#	Species_Code: PIED
#--------------------
# Chronology:
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#--------------------
# 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
1477	2.013
1478	1.265
1479	0.906
1480	0.635
1481	1.04
1482	1.3
1483	1.353
1484	1.493
1485	1.265
1486	1.57
1487	0.492
1488	1.138
1489	1.215
1490	1.191
1491	1.328
1492	1.051
1493	0.711
1494	0.906
1495	0.302
1496	0.799
1497	0.831
1498	1.424
1499	1.053
1500	0.813
1501	0.701
1502	1.182
1503	1.133
1504	1.225
1505	1.267
1506	0.575
1507	0.907
1508	0.896
1509	1.232
1510	0.717
1511	1.046
1512	0.92
1513	1.092
1514	1.113
1515	1.101
1516	0.487
1517	0.48
1518	0.717
1519	1.207
1520	1.231
1521	0.991
1522	0.622
1523	0.474
1524	0.817
1525	0.863
1526	1.21
1527	0.751
1528	0.813
1529	0.71
1530	1.108
1531	0.958
1532	0.791
1533	0.756
1534	0.956
1535	0.923
1536	1.149
1537	1.267
1538	0.67
1539	1.063
1540	1.055
1541	0.815
1542	0.373
1543	0.667
1544	0.592
1545	0.547
1546	0.698
1547	0.7
1548	0.602
1549	1.034
1550	1.116
1551	0.734
1552	0.733
1553	1.095
1554	0.711
1555	1.2
1556	1.287
1557	1.187
1558	1.006
1559	0.707
1560	0.511
1561	0.476
1562	0.646
1563	1.003
1564	1.165
1565	1.465
1566	0.944
1567	0.632
1568	0.689
1569	1.368
1570	1.1
1571	0.936
1572	0.91
1573	0.303
1574	0.325
1575	0.617
1576	0.509
1577	0.808
1578	0.503
1579	0.004
1580	0.04
1581	0.966
1582	0.911
1583	0.534
1584	0.004
1585	0.22
1586	1.092
1587	1.567
1588	1.537
1589	0.998
1590	0.304
1591	1.251
1592	0.324
1593	0.446
1594	1.936
1595	1.623
1596	1.768
1597	0.931
1598	0.945
1599	1.641
1600	0.281
1601	0.948
1602	1.039
1603	1.331
1604	0.993
1605	1.291
1606	0.983
1607	1.068
1608	1.273
1609	1.417
1610	1.695
1611	1.219
1612	1.189
1613	1.111
1614	1.299
1615	1.159
1616	0.988
1617	1.493
1618	1.575
1619	0.975
1620	1.595
1621	1.725
1622	0.913
1623	0.606
1624	0.501
1625	0.716
1626	0.736
1627	1.24
1628	0.784
1629	1.292
1630	1.411
1631	0.782
1632	0.519
1633	1.488
1634	1.262
1635	1.479
1636	1.288
1637	1.336
1638	0.908
1639	1.532
1640	1.599
1641	1.176
1642	1.075
1643	1.153
1644	1.037
1645	0.782
1646	1.155
1647	1.222
1648	0.483
1649	0.8
1650	1.224
1651	1.415
1652	1.424
1653	0.911
1654	0.734
1655	1.401
1656	1.652
1657	0.684
1658	0.463
1659	1.142
1660	1.493
1661	1.322
1662	0.978
1663	1.192
1664	0.708
1665	1.206
1666	0.687
1667	0.41
1668	0.224
1669	0.54
1670	0.465
1671	0.947
1672	0.783
1673	1.301
1674	0.729
1675	1.147
1676	0.763
1677	0.705
1678	0.525
1679	0.982
1680	1.575
1681	1.372
1682	1.18
1683	1.505
1684	0.584
1685	-0.006
1686	1.228
1687	1.251
1688	1.18
1689	1.242
1690	1.486
1691	1.254
1692	1.656
1693	1.396
1694	0.986
1695	1.169
1696	0.685
1697	0.989
1698	1.008
1699	1.618
1700	0.635
1701	1.393
1702	1.005
1703	0.931
1704	0.724
1705	1.092
1706	1.42
1707	1.032
1708	0.797
1709	1.062
1710	1.308
1711	1.233
1712	1.404
1713	0.807
1714	1.114
1715	0.8
1716	0.612
1717	0.778
1718	1.147
1719	0.709
1720	1.633
1721	0.85
1722	0.707
1723	1.259
1724	0.662
1725	1.275
1726	1.408
1727	1.127
1728	0.507
1729	-0.007
1730	0.615
1731	0.831
1732	1.04
1733	0.423
1734	1.037
1735	0.572
1736	0.894
1737	0.934
1738	1.099
1739	0.651
1740	0.98
1741	1.06
1742	0.757
1743	1.355
1744	0.611
1745	1.472
1746	1.608
1747	1.44
1748	0.204
1749	1.352
1750	0.942
1751	0.503
1752	0.287
1753	0.288
1754	0.933
1755	0.605
1756	0.559
1757	0.459
1758	1.238
1759	1.354
1760	1.161
1761	0.76
1762	1.143
1763	0.484
1764	1.149
1765	0.772
1766	1.178
1767	1.107
1768	1.486
1769	1.356
1770	1.192
1771	1.619
1772	1.534
1773	0.413
1774	0.984
1775	1.102
1776	0.862
1777	0.394
1778	0.705
1779	0.594
1780	0.157
1781	0.828
1782	0.387
1783	1.351
1784	1.628
1785	0.629
1786	0.935
1787	1.449
1788	0.75
1789	1.026
1790	1.421
1791	1.608
1792	1.564
1793	1.556
1794	1.223
1795	1.035
1796	0.628
1797	0.546
1798	0.827
1799	0.735
1800	0.465
1801	0.591
1802	0.776
1803	0.627
1804	1.155
1805	0.646
1806	0.23
1807	1.283
1808	0.992
1809	0.967
1810	0.727
1811	0.982
1812	0.839
1813	0.876
1814	1.124
1815	1.424
1816	1.876
1817	1.159
1818	-0.009
1819	0.181
1820	-0.009
1821	0.7
1822	-0.009
1823	0.179
1824	0.719
1825	0.833
1826	0.767
1827	0.668
1828	1.558
1829	0.796
1830	1.156
1831	1.003
1832	0.943
1833	1.188
1834	0.905
1835	1.056
1836	0.9
1837	1.372
1838	1.324
1839	1.618
1840	1.459
1841	1.41
1842	0.611
1843	0.775
1844	1.593
1845	1.13
1846	1.354
1847	0.255
1848	1.369
1849	2.068
1850	1.357
1851	0.674
1852	1.41
1853	1.329
1854	1.041
1855	1.383
1856	1.585
1857	0.82
1858	1.595
1859	1.121
1860	1.221
1861	-0.009
1862	1.372
1863	0.603
1864	0.535
1865	1.035
1866	1.622
1867	1.599
1868	1.82
1869	1.271
1870	1.017
1871	0.317
1872	0.523
1873	0.485
1874	1.23
1875	0.778
1876	0.692
1877	0.962
1878	0.701
1879	0.201
1880	-0.009
1881	0.114
1882	0.884
1883	0.802
1884	1.246
1885	1.521
1886	1.412
1887	0.968
1888	1.506
1889	1.115
1890	1.069
1891	1.277
1892	0.6
1893	0.539
1894	0.371
1895	1.004
1896	0.574
1897	0.855
1898	0.779
1899	0.177
1900	0.31
1901	0.82
1902	0.449
1903	0.86
1904	-0.009
1905	1.556
1906	1.583
1907	1.79
1908	1.474
1909	1.143
1910	1.066
1911	1.715
1912	1.099
1913	0.841
1914	1.466
1915	1.632
1916	1.816
1917	1.441
1918	0.99
1919	1.357
1920	1.739
1921	1.146
1922	1.099
1923	1.086
1924	1.438
1925	0.823
1926	1.159
1927	1.402
1928	0.673
1929	0.868
1930	0.978
1931	1.022
1932	1.32
1933	0.973
1934	1.055
1935	1.38
1936	1.018
1937	1.604
1938	1.363
1939	0.917
1940	0.794
1941	1.746
1942	1.274
1943	0.896
1944	0.923
1945	1.019
1946	0.694
1947	0.862
1948	1.115
1949	1.339
1950	0.401
1951	0.212
1952	1.287
1953	0.615
1954	1.172
1955	0.447
1956	0.481
1957	1.242
1958	0.813
1959	0.685
1960	1.043
1961	0.604
1962	1.206
1963	0.962
1964	0.39
1965	1.327
1966	0.779
1967	0.512
1968	0.931
1969	1.033
1970	0.996
1971	-0.008
1972	1.013