# 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/alge002-noaa.crn # Description: Chronology - NOAA Template File # # Original_Source_URL: https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/africa/alge002.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,standard,N, ## numsamp number of samples,,,count,,tree ring,,,N, # #-------------------- # Data: # Missing_Values: -999 age_CE trsgi numsamp 1569 985 1 1570 1049 1 1571 780 1 1572 749 1 1573 805 1 1574 774 1 1575 987 1 1576 1063 1 1577 1094 1 1578 1259 1 1579 1649 1 1580 1344 1 1581 1206 1 1582 1493 1 1583 1437 1 1584 1307 1 1585 1075 1 1586 1339 1 1587 1337 1 1588 1223 1 1589 1088 1 1590 1000 1 1591 1033 1 1592 877 1 1593 422 1 1594 906 1 1595 940 1 1596 984 1 1597 1273 1 1598 827 1 1599 1356 1 1600 956 1 1601 1011 1 1602 1218 1 1603 749 1 1604 743 1 1605 901 1 1606 1215 1 1607 1304 1 1608 1270 1 1609 1696 1 1610 1285 1 1611 1366 1 1612 1225 1 1613 1457 1 1614 916 1 1615 1019 1 1616 1439 1 1617 1480 1 1618 1466 1 1619 1209 1 1620 736 1 1621 1279 1 1622 1117 1 1623 658 1 1624 1027 1 1625 1252 1 1626 1039 1 1627 1173 1 1628 958 1 1629 764 1 1630 993 1 1631 832 1 1632 897 1 1633 1118 1 1634 1076 1 1635 1180 1 1636 832 1 1637 504 1 1638 606 1 1639 535 1 1640 638 1 1641 830 1 1642 746 1 1643 445 1 1644 537 1 1645 591 1 1646 684 1 1647 1116 1 1648 548 1 1649 538 1 1650 593 1 1651 305 1 1652 453 1 1653 830 1 1654 430 1 1655 635 1 1656 787 1 1657 845 1 1658 918 1 1659 564 1 1660 525 1 1661 763 1 1662 683 1 1663 812 1 1664 857 1 1665 607 1 1666 468 1 1667 740 1 1668 400 1 1669 573 1 1670 777 1 1671 679 1 1672 666 1 1673 814 1 1674 1036 1 1675 937 1 1676 910 1 1677 1252 1 1678 665 1 1679 652 1 1680 773 1 1681 641 1 1682 1315 1 1683 689 1 1684 796 1 1685 1039 1 1686 1193 1 1687 939 1 1688 895 1 1689 1669 2 1690 1608 2 1691 908 3 1692 953 3 1693 1239 3 1694 786 3 1695 1141 3 1696 1323 3 1697 1128 3 1698 1038 3 1699 847 3 1700 990 3 1701 1036 3 1702 1214 3 1703 967 3 1704 1000 3 1705 1204 3 1706 1399 4 1707 1339 5 1708 1380 5 1709 695 5 1710 754 5 1711 928 5 1712 1055 5 1713 985 5 1714 1156 5 1715 1652 5 1716 697 5 1717 982 5 1718 868 5 1719 964 5 1720 632 5 1721 933 5 1722 996 5 1723 901 5 1724 1555 5 1725 703 5 1726 604 5 1727 1157 5 1728 1110 6 1729 973 6 1730 910 6 1731 853 6 1732 894 6 1733 767 6 1734 958 6 1735 904 6 1736 1020 6 1737 701 6 1738 723 6 1739 911 6 1740 1062 6 1741 883 6 1742 712 6 1743 702 6 1744 783 6 1745 232 6 1746 625 7 1747 935 7 1748 816 8 1749 845 8 1750 1064 8 1751 995 9 1752 920 9 1753 1173 9 1754 1127 9 1755 1383 9 1756 822 9 1757 598 9 1758 1194 9 1759 1320 9 1760 1034 9 1761 1109 9 1762 1318 9 1763 1214 9 1764 965 9 1765 913 9 1766 882 9 1767 960 9 1768 1107 9 1769 1058 9 1770 880 10 1771 1042 11 1772 914 11 1773 798 11 1774 833 11 1775 882 11 1776 1167 12 1777 1267 12 1778 1064 12 1779 1120 12 1780 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