2021
Kauri Tree-Ring Stable Isotopes Reveal a Centennial Climate Downturn Following the Antarctic Cold Reversal in New Zealand
PAULY, Maren, Chris S. M. TURNEY, Jonathan PALMER, Ulf BÜNTGEN, A. BRAUER et. al.Základní údaje
Originální název
Kauri Tree-Ring Stable Isotopes Reveal a Centennial Climate Downturn Following the Antarctic Cold Reversal in New Zealand
Autoři
PAULY, Maren (garant), Chris S. M. TURNEY, Jonathan PALMER, Ulf BÜNTGEN (276 Německo, domácí), A. BRAUER a G. HELLE
Vydání
Geophysical Research Letters, Washington, D. C., USA, American Geophysical Union, 2021, 0094-8276
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.576
Kód RIV
RIV/00216224:14310/21:00121309
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000613648800052
Klíčová slova anglicky
delta C-13; delta O-18; climate; Late Glacial; New Zealand; tree-ring cellulose
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 3. 2021 11:45, Mgr. Marie Šípková, DiS.
Anotace
V originále
The dynamics of the Late Glacial have been demonstrated by numerous records from the Northern Hemisphere and far fewer from the Southern Hemisphere (SH). SH paleoclimate records reveal a general warming trend, interrupted by a deglaciation pause Antarctic Cold Reversal (ACR; similar to 14,700-13,000 cal BP). Here, we present decadal tree-ring stable isotope chronologies (delta O-18, delta C-13) from New Zealand (NZ) subfossil kauri trees (n = 6) covering the post-ACR millennium from 13,020 to 11,850 cal BP. We find a distinct, simultaneous downturn (similar to 12,625-12,375 cal BP) in all tree-ring proxies paralleling regional tree growth declines, suggesting a widespread climate deterioration. This downturn was characterized by sustained high precipitation, low temperatures, and high relative humidity in NZ with incoming weather fronts from the South Ocean. Despite these promising results, questions remain about what drove the Kauri Downturn and how the hydroclimatic conditions were altered during this time period.