Now showing items 1-10 of 172
Sea surface temperature and salinity variability at Bermuda during the end of the Little Ice Age
(American Geophysical Union, 2008-07-09)
We use geochemical and isotope measurements on a 225-year old brain coral (Diploria labyrinthiformis) from the south shore of Bermuda (64°W, 32°N) to construct a record of decadal-to-centennial-scale climate variability. ...
Evaluating triple oxygen isotope estimates of gross primary production at the Hawaii Ocean Time-series and Bermuda Atlantic Time-series Study sites
(American Geophysical Union, 2012-05-08)
The triple oxygen isotopic composition of dissolved oxygen (17Δ) is a promising tracer of gross oxygen productivity (P) in the ocean. Recent studies have inferred a high and variable ratio of P to 14C net primary productivity ...
Ocean acidification’s potential to alter global marine ecosystem services
(Oceanography Society, 2009-12)
Ocean acidification lowers the oceanic saturation states of carbonate minerals and decreases the calcification rates of some marine organisms that provide a range of ecosystem services such as wild fishery and aquaculture ...
Skill assessment for coupled biological/physical models of marine systems
Coupled biological/physical models of marine systems serve many purposes including the synthesis of information, hypothesis generation, and as a tool for numerical experimentation. However, marine system models are ...
An assessment of the Atlantic and Arctic sea–air CO2 fluxes, 1990–2009
(Copernicus Publications on behalf of the European Geosciences Union, 2013-01-29)
The Atlantic and Arctic Oceans are critical components of the global carbon cycle. Here we quantify the net sea–air CO2 flux, for the first time, across different methodologies for consistent time and space scales for the ...
Separating the influence of temperature, drought, and fire on interannual variability in atmospheric CO2
(John Wiley & Sons, 2014-11-19)
The response of the carbon cycle in prognostic Earth system models (ESMs) contributes significant uncertainty to projections of global climate change. Quantifying contributions of known drivers of interannual variability ...
Recent trends and drivers of regional sources and sinks of carbon dioxide
(Copernicus Publications on behalf of the European Geosciences Union, 2015-02-02)
The land and ocean absorb on average just over half of the anthropogenic emissions of carbon dioxide (CO2) every year. These CO2 "sinks" are modulated by climate change and variability. Here we use a suite of nine dynamic ...
Comment on “Modern-age buildup of CO2 and its effects on seawater acidity and salinity” by Hugo A. Loáiciga
(American Geophysical Union, 2007-09-25)
Comparing food web structures and dynamics across a suite of global marine ecosystem models
Dynamic Green Ocean Models (DGOMs) include different sets of Plankton Functional Types (PFTs) and equations, thus different interactions and food webs. Using four DGOMs (CCSM-BEC, PISCES, NEMURO and PlankTOM5) we explore ...
Biogeochemical protocols and diagnostics for the CMIP6 Ocean Model Intercomparison Project (OMIP)
(Copernicus Publications on behalf of the European Geosciences Union, 2017-06-09)
The Ocean Model Intercomparison Project (OMIP) focuses on the physics and biogeochemistry of the ocean component of Earth system models participating in the sixth phase of the Coupled Model Intercomparison Project (CMIP6). ...