# Touchan - Pinus Nigra Reserve - PINI - ITRDB ALGE002 #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite original publication, online resource and date accessed when using these data, # If there is no publication information, please cite investigator, title, online resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/9919 # Description: NOAA Landing Page of study # Online_Resource: https://www1.ncdc.noaa.gov//pub/data/paleo/treering/chronologies/africa/alge002a-noaa.crn # Description: Chronology - NOAA Template File # # Original_Source_URL: https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/africa/alge002a.crn # Description: Chronology - Tucson Decadal File # # Archive: Tree Ring # # Dataset_DOI: # # Parameter_Keywords: ring width #------------------- # Contribution_Date # Date: 2010-10-10 #------------------- # File_Last_Modified_Date # Date: 2018-12-12 #------------------- # Title # Study_Name: Touchan - Pinus Nigra Reserve - PINI - ITRDB ALGE002 #------------------- # Investigators: Touchan, R. #------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-12. #------------------- # Publication # Authors: Ramzi Touchan, Kevin J. Anchukaitis, David M. Meko, Said Attalah, Christopher Baisan, Ali Aloui # Journal_Name: Climate Dynamics # Published_Title: Spatiotemporal drought variability in northwestern Africa over the last nine centuries # Published_Date_or_Year: 2011 # Volume: 37 # Pages: 237-252 # Report_Number: # DOI: 10.1007/s00382-010-0804-4 # Full_Citation: # Abstract: Changes in precipitation patterns and the frequency and duration of drought are likely to be the feature of anthropogenic climate change that will have the most direct and most immediate consequences for human populations. The latest generation of state-of-the-art climate models project future widespread drying in the subtropics. Here, we reconstruct spatially-complete gridded Palmer drought severity index values back to A.D. 1179 over Morocco, Algeria, and Tunisia. The reconstructions provide long-term context for northwest African hydroclimatology, revealing large-scale regional droughts prior to the sixteenth century, as well as more heterogeneous patterns in sixteenth, eighteenth, and twentieth century. Over the most recent decades a shift toward dry conditions over the region is observed, which is consistent with general circulation model projections of greenhouse gas forced enhanced regional subtropical drought. #------------------- # Site_Information # Site_Name: Pinus Nigra Reserve # Location: Algeria # Northernmost_Latitude: 36.45 # Southernmost_Latitude: 36.45 # Easternmost_Longitude: 4.1 # Westernmost_Longitude: 4.1 # Elevation: 1560 #------------------- # Data_Collection # Collection_Name: ALGE002 # Earliest_Year: 1569 # Most_Recent_Year: 2005 # Time_Unit: AD # Notes: #------------------- # Species # Species_Name: Pinus nigra J.F. Arnold # Common_Name: Austrian pine # Tree_Species_Code: PINI #------------------- # Chronology_Information # Chronology: #--------------------- # Variables # variables format: shortname var components: what,material,error,units,season,archive,detail,method, C or N for Char or Numeric data,additional information ## age_CE age,,,year Common Era,,tree ring,,,N, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,ARSTAN,N, ## numsamp number of samples,,,count,,tree ring,,,N, # #-------------------- # Data: # Missing_Values: -999 age_CE trsgi numsamp 1570 780 1 1571 749 1 1572 805 1 1573 774 1 1574 815 1 1575 1089 1 1576 1151 1 1577 1184 1 1578 1318 1 1579 1648 1 1580 1288 1 1581 1122 1 1582 1323 1 1583 1228 1 1584 1142 1 1585 906 1 1586 1163 1 1587 1167 1 1588 1108 1 1589 982 1 1590 879 1 1591 925 1 1592 802 1 1593 396 1 1594 926 1 1595 968 1 1596 1106 1 1597 1397 1 1598 885 1 1599 1399 1 1600 907 1 1601 995 1 1602 1167 1 1603 693 1 1604 739 1 1605 879 1 1606 1229 1 1607 1365 1 1608 1327 1 1609 1687 1 1610 1180 1 1611 1243 1 1612 1021 1 1613 1257 1 1614 731 1 1615 893 1 1616 1300 1 1617 1381 1 1618 1420 1 1619 1110 1 1620 579 1 1621 1116 1 1622 958 1 1623 618 1 1624 1021 1 1625 1209 1 1626 1057 1 1627 1216 1 1628 928 1 1629 727 1 1630 959 1 1631 806 1 1632 938 1 1633 1167 1 1634 1120 1 1635 1229 1 1636 836 1 1637 493 1 1638 588 1 1639 551 1 1640 759 1 1641 1006 1 1642 938 1 1643 637 1 1644 700 1 1645 724 1 1646 859 1 1647 1320 1 1648 726 1 1649 721 1 1650 693 1 1651 413 1 1652 636 1 1653 1030 1 1654 660 1 1655 908 1 1656 985 1 1657 1031 1 1658 1102 1 1659 703 1 1660 640 1 1661 851 1 1662 795 1 1663 983 1 1664 1015 1 1665 747 1 1666 600 1 1667 852 1 1668 522 1 1669 769 1 1670 961 1 1671 877 1 1672 882 1 1673 987 1 1674 1176 1 1675 1066 1 1676 1022 1 1677 1307 1 1678 675 1 1679 693 1 1680 769 1 1681 675 1 1682 1432 1 1683 788 1 1684 938 1 1685 1088 1 1686 1225 1 1687 997 1 1688 938 1 1689 1674 1 1690 1959 1 1691 1529 1 1692 1366 2 1693 1164 2 1694 702 3 1695 1178 3 1696 1294 3 1697 1180 3 1698 1168 3 1699 824 3 1700 836 3 1701 896 3 1702 1326 3 1703 1069 3 1704 1115 3 1705 1225 3 1706 1282 3 1707 1234 4 1708 1479 4 1709 996 4 1710 847 5 1711 828 5 1712 1033 5 1713 1008 5 1714 1148 5 1715 1568 5 1716 692 5 1717 937 5 1718 856 5 1719 922 5 1720 717 5 1721 883 5 1722 996 5 1723 917 5 1724 1516 5 1725 614 5 1726 592 5 1727 1038 5 1728 1049 5 1729 1034 6 1730 950 6 1731 817 6 1732 921 6 1733 753 6 1734 996 6 1735 963 6 1736 1088 6 1737 724 6 1738 733 6 1739 909 6 1740 988 6 1741 936 6 1742 857 6 1743 624 6 1744 645 6 1745 229 6 1746 643 6 1747 1016 7 1748 947 7 1749 1083 7 1750 1254 8 1751 1104 8 1752 1003 9 1753 1209 9 1754 1050 9 1755 1385 9 1756 791 9 1757 580 9 1758 1113 9 1759 1319 9 1760 1064 9 1761 1187 9 1762 1243 9 1763 1125 9 1764 849 9 1765 953 9 1766 782 9 1767 900 9 1768 1136 9 1769 1074 9 1770 951 9 1771 1015 10 1772 929 11 1773 806 11 1774 880 11 1775 940 11 1776 1194 11 1777 1301 12 1778 1076 12 1779 1117 12 1780 1033 12 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