ÃÂ¯ÃÂ»ÃÂ¿# northamerica_usa_az086 - Shonto Plateau - 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/3104
#
# Description/Documentation lines begin with #
# Data lines have no #
#
# Archive: Tree Rings
#--------------------
# Contribution_Date
#	Date: 2016-01-07
#--------------------
# Title
#	Study_Name: northamerica_usa_az086 - Shonto Plateau - 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.
#------------------
# 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: Shonto Plateau
#	Location:
#	Country: United States
#	Northernmost_Latitude: 36.83
#	Southernmost_Latitude: 36.83
#	Easternmost_Longitude: -110.73
#	Westernmost_Longitude: -110.73
#	Elevation: 2134 m
#--------------------
# Data_Collection
#	Collection_Name: northamerica_usa_az086B
#	Earliest_Year: 1365
#	Most_Recent_Year: 1971
#	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":"5.25463188931","T2":"15.9560578655","M1":"0.0241619148244","M2":"0.466733276646"}}
#--------------------
# Species
#	Species_Name: pinyon pine
#	Species_Code: PIED
#--------------------
# 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
1365	0.726
1366	1.291
1367	1.42
1368	1.048
1369	0.798
1370	1.049
1371	0.738
1372	1.087
1373	0.915
1374	1.182
1375	0.987
1376	0.417
1377	1.181
1378	0.944
1379	0.795
1380	1.707
1381	1.584
1382	1.369
1383	0.702
1384	1.122
1385	1.169
1386	0.749
1387	1.298
1388	1.306
1389	0.457
1390	0.396
1391	0.479
1392	1.078
1393	0.915
1394	1.172
1395	0.955
1396	0.482
1397	1.45
1398	0.465
1399	0.618
1400	0.322
1401	0.764
1402	0.584
1403	0.704
1404	1.366
1405	0.981
1406	1.279
1407	0.434
1408	0.97
1409	1.431
1410	0.731
1411	0.85
1412	1.492
1413	0.624
1414	1.948
1415	1.082
1416	1.213
1417	0.984
1418	0.931
1419	1.561
1420	1.499
1421	0.1
1422	1.098
1423	0.144
1424	1.413
1425	0.522
1426	1.331
1427	1.712
1428	1.337
1429	0.513
1430	1.308
1431	1.277
1432	0.919
1433	1.393
1434	1.154
1435	0.354
1436	0.583
1437	0.904
1438	0.332
1439	0.837
1440	1.337
1441	1.486
1442	0.292
1443	0.615
1444	0.215
1445	0.77
1446	0.802
1447	0.717
1448	0.571
1449	0.509
1450	0.019
1451	1.508
1452	1.66
1453	2.077
1454	0.913
1455	0.033
1456	0.413
1457	0.206
1458	1.379
1459	0.683
1460	0.006
1461	0.497
1462	1.352
1463	0.856
1464	0.006
1465	1.245
1466	1.579
1467	1.823
1468	1.391
1469	1.827
1470	0.585
1471	0.233
1472	0.794
1473	0.819
1474	1.045
1475	1.395
1476	2
1477	2.088
1478	2.031
1479	0.724
1480	0.509
1481	0.921
1482	2.299
1483	2.085
1484	2.571
1485	1.284
1486	2.356
1487	0.671
1488	2.5
1489	2.505
1490	2.001
1491	1.815
1492	1.169
1493	1.309
1494	1.137
1495	0.004
1496	1.073
1497	1.33
1498	1.4
1499	0.091
1500	0.004
1501	1.122
1502	1.355
1503	1.449
1504	1.825
1505	0.719
1506	0.447
1507	0.933
1508	1.197
1509	0.949
1510	0.038
1511	1.508
1512	1.391
1513	1.514
1514	1.485
1515	0.753
1516	0.886
1517	0.261
1518	0.905
1519	1.362
1520	1.123
1521	0.389
1522	0.002
1523	0.788
1524	1.179
1525	0.665
1526	1.305
1527	0.616
1528	0.57
1529	0.906
1530	1.185
1531	0.897
1532	0.282
1533	0.999
1534	1.184
1535	0.824
1536	1.069
1537	1.509
1538	0.096
1539	1.169
1540	1.136
1541	1.139
1542	0.002
1543	1.306
1544	0.084
1545	1.096
1546	1.416
1547	0.507
1548	0.557
1549	0.859
1550	1.024
1551	0.478
1552	1.196
1553	1.017
1554	0.473
1555	1.058
1556	1.13
1557	1.217
1558	1.032
1559	0.921
1560	1.394
1561	0.488
1562	1.139
1563	0.626
1564	1.3
1565	1.451
1566	0.717
1567	0.415
1568	0.675
1569	1.121
1570	1.187
1571	0.343
1572	1.104
1573	0.466
1574	0.513
1575	1.053
1576	0.572
1577	1.029
1578	0.785
1579	0.126
1580	0.455
1581	0.708
1582	0.356
1583	0
1584	0.037
1585	0
1586	0.776
1587	1.011
1588	1.647
1589	0.847
1590	0.771
1591	0.263
1592	0.534
1593	0.747
1594	1.534
1595	1.3
1596	0.903
1597	0.749
1598	0.736
1599	1.843
1600	0.137
1601	1.349
1602	1.636
1603	1.079
1604	1.025
1605	1.477
1606	1.457
1607	1.422
1608	0.703
1609	1.544
1610	1.593
1611	1.174
1612	0.524
1613	-0.003
1614	0.514
1615	0.684
1616	0.779
1617	1.203
1618	1.169
1619	1.244
1620	1.903
1621	1.878
1622	1.706
1623	0.223
1624	0.946
1625	1.114
1626	-0.003
1627	1.403
1628	0.695
1629	1.276
1630	0.931
1631	1.562
1632	-0.003
1633	1.664
1634	0.978
1635	1.381
1636	1.007
1637	0.643
1638	0.249
1639	1.176
1640	1.795
1641	1.659
1642	1.628
1643	1.188
1644	1.846
1645	0.952
1646	1.119
1647	1.716
1648	0.56
1649	1.254
1650	1.278
1651	1.771
1652	0.367
1653	1.379
1654	0.02
1655	1.134
1656	1.282
1657	1.082
1658	0.599
1659	1.45
1660	1.47
1661	1.469
1662	1.234
1663	1.1
1664	1.109
1665	0.845
1666	0.818
1667	0.132
1668	0.662
1669	0.64
1670	-0.004
1671	1.039
1672	0.861
1673	0.698
1674	1.305
1675	0.695
1676	-0.004
1677	1.159
1678	0.763
1679	-0.004
1680	1.347
1681	1.261
1682	0.636
1683	1.369
1684	0.038
1685	-0.005
1686	0.021
1687	1.002
1688	0.932
1689	1.11
1690	1.043
1691	1.023
1692	1.445
1693	1.562
1694	0.602
1695	1.397
1696	0.529
1697	0.451
1698	1.148
1699	0.926
1700	0.459
1701	1.929
1702	0.993
1703	0.068
1704	1.085
1705	1.363
1706	0.89
1707	1.031
1708	0.664
1709	1.551
1710	1.206
1711	0.846
1712	1.049
1713	1.113
1714	1.254
1715	1.015
1716	0.586
1717	1.032
1718	1.463
1719	1.819
1720	2.359
1721	1.07
1722	0.263
1723	1.618
1724	0.976
1725	1.551
1726	1.796
1727	1.707
1728	0.05
1729	-0.005
1730	0.724
1731	1.494
1732	1.545
1733	0.66
1734	1.214
1735	-0.005
1736	1.33
1737	0.309
1738	1.136
1739	0.315
1740	0.602
1741	0.995
1742	0.915
1743	1.322
1744	0.45
1745	1.332
1746	1.726
1747	1.602
1748	0.161
1749	1.626
1750	0.589
1751	0.647
1752	0.023
1753	-0.005
1754	0.937
1755	0.408
1756	1.121
1757	0.298
1758	1.458
1759	1.013
1760	1.618
1761	1.298
1762	1.145
1763	-0.005
1764	1.82
1765	0.435
1766	1.315
1767	0.959
1768	1.867
1769	0.974
1770	0.054
1771	1.404
1772	0.758
1773	-0.005
1774	1.313
1775	1.091
1776	0.783
1777	0.934
1778	0.035
1779	1.08
1780	0.2
1781	0.79
1782	0.166
1783	0.909
1784	1.465
1785	0.541
1786	0.758
1787	1.46
1788	1.048
1789	0.737
1790	-0.005
1791	1.171
1792	1.305
1793	1.666
1794	1.053
1795	1.427
1796	1.358
1797	0.907
1798	1.209
1799	0.992
1800	0.611
1801	0.387
1802	1.378
1803	0.233
1804	1.338
1805	1.078
1806	0.37
1807	1.604
1808	0.203
1809	1.157
1810	0.3
1811	1.183
1812	0.787
1813	-0.005
1814	0.937
1815	1.017
1816	1.56
1817	1.28
1818	0.207
1819	0.57
1820	0.171
1821	1.754
1822	-0.005
1823	0.669
1824	1.245
1825	1.531
1826	1.743
1827	0.551
1828	1.885
1829	0.452
1830	0.631
1831	1.592
1832	0.943
1833	1.782
1834	0.481
1835	1.86
1836	1.268
1837	2.162
1838	2.517
1839	2.183
1840	2.242
1841	1.048
1842	0.659
1843	1.434
1844	1.858
1845	-0.005
1846	1.448
1847	-0.005
1848	1.167
1849	2.266
1850	1.862
1851	0.552
1852	1.337
1853	0.716
1854	0.772
1855	0.883
1856	1.281
1857	0.254
1858	1.161
1859	1.247
1860	0.039
1861	-0.005
1862	1.909
1863	0.981
1864	-0.005
1865	1.082
1866	1.225
1867	1.523
1868	1.909
1869	1.682
1870	0.986
1871	0.257
1872	0.63
1873	0.242
1874	1.088
1875	1.127
1876	0.634
1877	1.14
1878	1.326
1879	0.115
1880	0.932
1881	0.137
1882	-0.005
1883	0.024
1884	1.158
1885	1.509
1886	1.411
1887	0.38
1888	1.364
1889	1.644
1890	2.021
1891	1.616
1892	1.811
1893	0.673
1894	0.596
1895	1.142
1896	0.311
1897	1.476
1898	1.212
1899	-0.005
1900	0.505
1901	0.59
1902	-0.005
1903	0.969
1904	-0.005
1905	1.469
1906	1.317
1907	1.723
1908	1.173
1909	1.22
1910	0.943
1911	1.524
1912	1.354
1913	1.274
1914	1.615
1915	1.629
1916	1.634
1917	1.542
1918	0.7
1919	1.496
1920	1.901
1921	1.016
1922	1.532
1923	1.509
1924	1.451
1925	1.412
1926	1.552
1927	1.603
1928	0.799
1929	1.398
1930	1.349
1931	1.079
1932	1.76
1933	0.592
1934	0.85
1935	1.206
1936	0.559
1937	1.514
1938	1.447
1939	0.946
1940	0.607
1941	1.583
1942	1.402
1943	0.528
1944	0.934
1945	0.992
1946	0.2
1947	-0.005
1948	1.39
1949	1.168
1950	0.674
1951	-0.005
1952	1.288
1953	0.677
1954	0.52
1955	0.56
1956	0.244
1957	1.079
1958	0.846
1959	-0.005
1960	1.243
1961	0.926
1962	0.66
1963	0.821
1964	0.555
1965	1.157
1966	1.327
1967	0.293
1968	0.621
1969	1.192
1970	0.871
1971	-0.005