Multispecies approach to reconstructing eastern equatorial Pacific thermocline hydrography during the past 360 kyr

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Radiocarbon as a thermocline proxy for the eastern equatorial Pacific

[1] An ocean model is used to test the idea that sea surface DC behaves as a thermocline proxy in the eastern equatorial Pacific. The ORCA2 model, which includes DC as a passive tracer, has been forced with reanalysis fluxes over 1948–1999, and the output is compared with a previously reported Galapagos DC record. The model reproduces the abrupt increase in the seasonally minimum DC in 1976/77 ...

متن کامل

Synchronous deglacial thermocline and deep-water ventilation in the eastern equatorial Pacific

The deep ocean is most likely the primary source of the radiocarbon-depleted CO2 released to the atmosphere during the last deglaciation. While there are well-documented millennial scale Δ14C changes during the most recent deglaciation, most marine records lack the resolution needed to identify more rapid ventilation events. Furthermore, potential age model problems with marine Δ14C records may...

متن کامل

Deep-reaching thermocline mixing in the equatorial pacific cold tongue

Vertical mixing is an important factor in determining the temperature, sharpness and depth of the equatorial Pacific thermocline, which are critical to the development of El Ninõ and Southern Oscillation (ENSO). Yet, properties, dynamical causes and large-scale impacts of vertical mixing in the thermocline are much less understood than that nearer the surface. Here, based on Argo float and the ...

متن کامل

Hydrography of the eastern tropical Pacific: A review

Eastern tropical Pacific Ocean waters lie at the eastern end of a basin-wide equatorial current system, between two large subtropical gyres and at the terminus of two eastern boundary currents. Descriptions and interpretations of surface, pycnocline, intermediate and deep waters in the region are reviewed. Spatial and temporal patterns are discussed using (1) maps of surface temperature, salini...

متن کامل

Running hot and cold in the eastern equatorial Pacific

Understanding paleoceanography of the eastern equatorial Pacific is of particular importance, given its propensity for high variability on all timescales including the seasonal cycle, the interannual El Niño–Southern Oscillation (ENSO), and longer-term changes, each with possible global consequences (Cane and Clement, 1999). For example, tropical Pacific warming imposed in atmospheric climate m...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Paleoceanography

سال: 2003

ISSN: 0883-8305

DOI: 10.1029/2002pa000814