Standardized precipitation index reconstructed from Turkish tree-ring widths

Ramzi Touchan, Gary Funkhouser, Malcolm K. Hughes, Nesat Erkan

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

May-July Standardized Precipitation Index (SPI) for the land area of most of Turkey and some adjoining regions are reconstructed from tree rings for the period 1251-1998. The reconstruction was developed from principal components analysis (PCA) of four Juniperus excelsa chronologies from southwestern and south-central Turkey and is based on reliable and replicable statistical relationships between climate and tree ring growth. The SPI reconstruction shows climate variability on both interannual and interdecadal time scales. The longest period of consecutive drought years in the reconstruction (SPI threshold ≤-1) is 2 yr. These occur in 1607-1608, 1675-1676, and 1907-1908. There are five wet events (SPI threshold ≥+1) of two consecutive years each (1330-1331, 1428-1429, 1503-1504, 1629-1630, and 1913-1914). A 5-yr moving average of the reconstructed SPI shows that two sustained drought periods occurred from the mid to late 1300s and the early to mid 1900s. Both episodes are characterized by low variability.

Original languageEnglish (US)
Pages (from-to)339-353
Number of pages15
JournalClimatic Change
Volume72
Issue number3
DOIs
StatePublished - Oct 2005

Fingerprint

Drought
tree ring
Principal component analysis
drought
climate
chronology
principal component analysis
index
timescale

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)
  • Environmental Chemistry
  • Global and Planetary Change

Cite this

Standardized precipitation index reconstructed from Turkish tree-ring widths. / Touchan, Ramzi; Funkhouser, Gary; Hughes, Malcolm K.; Erkan, Nesat.

In: Climatic Change, Vol. 72, No. 3, 10.2005, p. 339-353.

Research output: Contribution to journalArticle

@article{56060efcaac7465f935b27a3fc952360,
title = "Standardized precipitation index reconstructed from Turkish tree-ring widths",
abstract = "May-July Standardized Precipitation Index (SPI) for the land area of most of Turkey and some adjoining regions are reconstructed from tree rings for the period 1251-1998. The reconstruction was developed from principal components analysis (PCA) of four Juniperus excelsa chronologies from southwestern and south-central Turkey and is based on reliable and replicable statistical relationships between climate and tree ring growth. The SPI reconstruction shows climate variability on both interannual and interdecadal time scales. The longest period of consecutive drought years in the reconstruction (SPI threshold ≤-1) is 2 yr. These occur in 1607-1608, 1675-1676, and 1907-1908. There are five wet events (SPI threshold ≥+1) of two consecutive years each (1330-1331, 1428-1429, 1503-1504, 1629-1630, and 1913-1914). A 5-yr moving average of the reconstructed SPI shows that two sustained drought periods occurred from the mid to late 1300s and the early to mid 1900s. Both episodes are characterized by low variability.",
author = "Ramzi Touchan and Gary Funkhouser and Hughes, {Malcolm K.} and Nesat Erkan",
year = "2005",
month = "10",
doi = "10.1007/s10584-005-5358-9",
language = "English (US)",
volume = "72",
pages = "339--353",
journal = "Climatic Change",
issn = "0165-0009",
publisher = "Springer Netherlands",
number = "3",

}

TY - JOUR

T1 - Standardized precipitation index reconstructed from Turkish tree-ring widths

AU - Touchan, Ramzi

AU - Funkhouser, Gary

AU - Hughes, Malcolm K.

AU - Erkan, Nesat

PY - 2005/10

Y1 - 2005/10

N2 - May-July Standardized Precipitation Index (SPI) for the land area of most of Turkey and some adjoining regions are reconstructed from tree rings for the period 1251-1998. The reconstruction was developed from principal components analysis (PCA) of four Juniperus excelsa chronologies from southwestern and south-central Turkey and is based on reliable and replicable statistical relationships between climate and tree ring growth. The SPI reconstruction shows climate variability on both interannual and interdecadal time scales. The longest period of consecutive drought years in the reconstruction (SPI threshold ≤-1) is 2 yr. These occur in 1607-1608, 1675-1676, and 1907-1908. There are five wet events (SPI threshold ≥+1) of two consecutive years each (1330-1331, 1428-1429, 1503-1504, 1629-1630, and 1913-1914). A 5-yr moving average of the reconstructed SPI shows that two sustained drought periods occurred from the mid to late 1300s and the early to mid 1900s. Both episodes are characterized by low variability.

AB - May-July Standardized Precipitation Index (SPI) for the land area of most of Turkey and some adjoining regions are reconstructed from tree rings for the period 1251-1998. The reconstruction was developed from principal components analysis (PCA) of four Juniperus excelsa chronologies from southwestern and south-central Turkey and is based on reliable and replicable statistical relationships between climate and tree ring growth. The SPI reconstruction shows climate variability on both interannual and interdecadal time scales. The longest period of consecutive drought years in the reconstruction (SPI threshold ≤-1) is 2 yr. These occur in 1607-1608, 1675-1676, and 1907-1908. There are five wet events (SPI threshold ≥+1) of two consecutive years each (1330-1331, 1428-1429, 1503-1504, 1629-1630, and 1913-1914). A 5-yr moving average of the reconstructed SPI shows that two sustained drought periods occurred from the mid to late 1300s and the early to mid 1900s. Both episodes are characterized by low variability.

UR - http://www.scopus.com/inward/record.url?scp=27644465869&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27644465869&partnerID=8YFLogxK

U2 - 10.1007/s10584-005-5358-9

DO - 10.1007/s10584-005-5358-9

M3 - Article

AN - SCOPUS:27644465869

VL - 72

SP - 339

EP - 353

JO - Climatic Change

JF - Climatic Change

SN - 0165-0009

IS - 3

ER -