Holocene sea-surface temperature variability in the Chilean fjord region
Holocene sea-surface temperature variability in the Chilean fjord region
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智利峡湾地区全新世海面温度变化
DOI:
10.1016/j.yqres.2014.07.009
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发表时间:
2014
影响因子:
2.3
通讯作者:
Tiedemann
中科院分区:
文献类型:
--
作者:
Caniupán;M.· Lamy;Kaiser;Kilian;Mollenhauer;Sandoval;DeHolz;Pantoja;Wellner;Tiedemann
Here we provide three new Holocene (11–0 cal ka BP) alkenone-derived sea surface temperature (SST) records from the southernmost Chilean fjord region (50–53°S). SST estimates may be biased towards summer temperature in this region, as revealed by a large set of surface sediments. The Holocene records show consistently warmer than present-day SSTs except for the past ~ 0.6 cal ka BP. However, they do not exhibit an early Holocene temperature optimum as registered further north off Chile and in Antarctica. This may have resulted from a combination of factors including decreased inflow of warmer open marine waters due to lower sea-level stands, enhanced advection of colder and fresher inner fjord waters, and stronger westerly winds. During the mid-Holocene, pronounced short-term variations of up to 2.5°C and a cooling centered at ~ 5 cal ka BP, which coincides with the first Neoglacial glacier advance in the Southern Andes, are recorded. The latest Holocene is characterized by two pronounced cold events centered at ~ 0.6 and 0.25 cal ka BP, i.e., during the Little Ice Age. These cold events have lower amplitudes in the offshore records, suggesting an amplification of the SST signal in the inner fjords.
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DOI:
10.1177/0959683607082414
发表时间:
2007
期刊:
The Holocene
影响因子:
--
作者:
A. Araneda;F. Torrejón;M. Aguayo;Laura Torres;F. Cruces;M. Cisternas;R. Urrutia
通讯作者:
R. Urrutia
影响因子:
5.3
作者:
J. Iriarte;J. Uribe;C. Valladares
通讯作者:
C. Valladares
影响因子:
2.2
作者:
R. Kilian;Ó. Baeza;T. Steinke;M. Arevalo;C. Ríos;C. Schneider
通讯作者:
C. Schneider
影响因子:
1.9
作者:
C. Villagrán
通讯作者:
C. Villagrán
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
A. Chaigneau;O. Pizarro
通讯作者:
O. Pizarro