干旱区生态环境知识资源中心(Arid): Tree-ring-based hydroclimatic reconstruction for the northwest Argentine Patagonia since 1055 CE and its teleconnection to large-scale atmospheric circulation

Arid

DOI	10.1016/j.gloplacha.2021.103496
	Tree-ring-based hydroclimatic reconstruction for the northwest Argentine Patagonia since 1055 CE and its teleconnection to large-scale atmospheric circulation
	Hadad, Martin A.; Gonzalez-Reyes, Alvaro; Roig, Fidel A.; Matskovsky, Vladimir; Cherubini, Paolo
通讯作者	Hadad, MA (corresponding author), CIGEOBIO CONICET UNSJ, Lab Dendrocronol Zonas Aridas, Gabinete Geol Ambiental FCEFyN UNSJ, Av Ignacio Roza 590 Oeste,J5402DCS, Rivadavia, San Juan, Argentina.
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2021
卷号	202
英文摘要	State-of-the-art climate models project droughts of stronger intensity and longer persistence in many arid and semi-arid regions such as northern Patagonia, which constitutes a serious concern worldwide. Moisture availability has a significant influence on the dynamic, stability and function of terrestrial ecosystems. In this study, we used wood samples from 260 Austrocedrus chilensis trees growing in northwestern Patagonia to reconstruct the Standardized Precipitation Evapotranspiration Index (SPEI) for the last millennium (1055-2014). Our reconstruction explained 41.6% of the variance contained in the November-December SPEI at a 1-month scale for the period 1930-2013. The SPEI reconstruction has provided a long record of extreme pluvial (1060s, 1090s, 1200s, 1300s, 1360s, 1390s, 1400s, 1550s, 1580s, 1580s, 1630s, 1940s, 1960s, and 2000s) and drought events (1070s, 1150s, 1170s, 1180s, 1270s, 1310s, 1430s, 1450s, 1570s, 1600s, 1620s, and 1950s) for northwest Argentine Patagonia. Although the SPEI reconstruction indicates that the frequency of extreme events has increased since 1950, our record indicates that current levels have not exceeded those previously reached, particularly when compared to those recorded around the suggested periods for the Medieval Warm and towards the end of the Little Ice Age. The spatial and temporal relationships associated with the South Annular Mode and the Pacific Sea Surface Temperature variability as expressed by the Tripole Index indicated that the temporal variability observed in the SPEI reconstruction is modulated by hemispheric-scale atmospheric circulation dynamics. These climate forcings are likely responsible for the intensity and the rate of occurrence of extreme weather events in northwestern Patagonia. Furthermore, the SPEI reconstruction showed a spatial and temporal pattern similar to that observed in previous PDSI-based reconstructions. This study provides robust evidence of hydroclimatic variations for extratropical sectors of South America, improving our knowledge of the climate dynamics during the last millennium and allowing us to review the recently observed increase in wet and dry events in a long-term historical context.
英文关键词	Dendroclimatology SPEI reconstruction Paleoclimate Spatio-temporal scale Patagonia
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000663731700002
WOS关键词	ANNULAR MODE SAM ; NORTHERN PATAGONIA ; CLIMATE-CHANGE ; ICE-AGE ; DROUGHT ; VARIABILITY ; ENSO ; PACIFIC ; ANDES ; OSCILLATION
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350438
作者单位	[Hadad, Martin A.] CIGEOBIO CONICET UNSJ, Lab Dendrocronol Zonas Aridas, Gabinete Geol Ambiental FCEFyN UNSJ, Av Ignacio Roza 590 Oeste,J5402DCS, Rivadavia, San Juan, Argentina; [Gonzalez-Reyes, Alvaro; Roig, Fidel A.] Univ Mayor, Hemera Ctr Observac Tierra, Escuela Ingn Forestal, Fac Ciencias, Camino La Piramide 5750, Santiago 8580745, Chile; [Roig, Fidel A.] Univ Nacl Cuyo, CONICET, IANIGLA, Lab Dendrocronol & Hist Ambiental, Mendoza, Argentina; [Matskovsky, Vladimir] RAS, Inst Geog, Moscow, Russia; [Cherubini, Paolo] Swiss Fed Res Inst WSL, Forest Dynam Res Unit, Birmensdorf, Switzerland; [Cherubini, Paolo] Univ British Columbia, Dept Forest & Conservat Sci, Fac Forestry, Vancouver, BC, Canada
推荐引用方式 GB/T 7714	Hadad, Martin A.,Gonzalez-Reyes, Alvaro,Roig, Fidel A.,et al. Tree-ring-based hydroclimatic reconstruction for the northwest Argentine Patagonia since 1055 CE and its teleconnection to large-scale atmospheric circulation[J],2021,202.
APA	Hadad, Martin A.,Gonzalez-Reyes, Alvaro,Roig, Fidel A.,Matskovsky, Vladimir,&Cherubini, Paolo.(2021).Tree-ring-based hydroclimatic reconstruction for the northwest Argentine Patagonia since 1055 CE and its teleconnection to large-scale atmospheric circulation.GLOBAL AND PLANETARY CHANGE,202.
MLA	Hadad, Martin A.,et al."Tree-ring-based hydroclimatic reconstruction for the northwest Argentine Patagonia since 1055 CE and its teleconnection to large-scale atmospheric circulation".GLOBAL AND PLANETARY CHANGE 202(2021).