Equatorial Pacific seawater pCO2 variability since the last glacial period
نویسندگان
چکیده
منابع مشابه
Forest contraction in north equatorial Southeast Asia during the Last Glacial Period.
Today, insular Southeast Asia is important for both its remarkably rich biodiversity and globally significant roles in atmospheric and oceanic circulation. Despite the fundamental importance of environmental history for diversity and conservation, there is little primary evidence concerning the nature of vegetation in north equatorial Southeast Asia during the Last Glacial Period (LGP). As a re...
متن کاملFactors controlling variability in the oxidative capacity of the troposphere since the Last Glacial Maximum
The oxidative capacity of past atmospheres is highly uncertain. We present here a new climate–biosphere– chemistry modeling framework to determine oxidant levels in the present and past troposphere. We use the GEOS-Chem chemical transport model driven by meteorological fields from the NASA Goddard Institute of Space Studies (GISS) ModelE, with land cover and fire emissions from dynamic global v...
متن کاملCharacterizing decadal to centennial variability in the equatorial Pacific during the last millennium
[1] The magnitude of sea surface temperature variability in the NINO3.4 region of the equatorial Pacific on decadal and longer timescales is assessed in observational data, state-of-the-art (Coupled Model Intercomparison Project 5) climate model simulations, and a new ensemble of paleoclimate reconstructions. On decadal to multidecadal timescales, variability in these records is consistent with...
متن کاملVaried response of western Pacific hydrology to climate forcings over the last glacial period.
Atmospheric deep convection in the west Pacific plays a key role in the global heat and moisture budgets, yet its response to orbital and abrupt climate change events is poorly resolved. Here, we present four absolutely dated, overlapping stalagmite oxygen isotopic records from northern Borneo that span most of the last glacial cycle. The records suggest that northern Borneo's hydroclimate shif...
متن کاملLast Glacial Maximum and deglacial abyssal seawater oxygen isotopic ratios
An earlier analysis of pore-water salinity (chlorinity) in two deep-sea cores, using terminal constraint methods of control theory, concluded that although a salinity amplification in the abyss was possible during the LGM, it was not required by the data. Here the same methodology is applied to δOw in the upper 100 m of four deep-sea cores. An ice volume amplification to the isotopic ratio is, ...
متن کاملذخیره 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: Scientific Reports
سال: 2019
ISSN: 2045-2322
DOI: 10.1038/s41598-019-49739-0