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Mining mass spectrometry data : using new computational tools to find novel organic compounds in complex environmental mixtures
(2017-05)Untargeted metabolomics datasets provide ample opportunity for discovery of novel metabolites. The major challenge is focusing data analysis on a short list of metabolites. Here, we apply a combination of computational ... -
Relationship between water and aragonite barium concentrations in aquaria reared juvenile corals
(Elsevier, 2017-04-09)Coral barium to calcium (Ba/Ca) ratios have been used to reconstruct records of upwelling, river and groundwater discharge, and sediment and dust input to the coastal ocean. However, this proxy has not yet been explicitly ... -
Controllability, not chaos, key criterion for ocean state estimation
(Copernicus Publications on behalf of the European Geosciences Union & the American Geophysical Union, 2017-07-19)The Lagrange multiplier method for combining observations and models (i.e., the adjoint method or "4D-VAR") has been avoided or approximated when the numerical model is highly nonlinear or chaotic. This approach has been ... -
Constraints on melt content of off-axis magma lenses at the East Pacific Rise from analysis of 3-D seismic amplitude variation with angle of incidence
(John Wiley & Sons, 2017-06-28)We use 3-D multichannel seismic data to form partial angle P wave stacks and apply amplitude variation with angle (AVA) crossplotting to assess melt content and melt distribution within two large midcrustal off-axis magma ... -
Extraction of uranium from seawater : design and testing of a symbiotic system
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2017-06)Seawater is estimated to contain 4.5 billion tonnes of uranium, approximately 1000 times that available in conventional terrestrial resources. Finding a sustainable way to harvest uranium from seawater will provide a ... -
High-frequency internal waves and thick bottom mixed layers observed by gliders in the Gulf Stream
(John Wiley & Sons, 2017-06-26)Autonomous underwater gliders are conducting high-resolution surveys within the Gulf Stream along the U.S. East Coast. Glider surveys reveal two mechanisms by which energy is extracted from the Gulf Stream as it flows over ... -
Calibration of the carbon isotope composition (δ13C) of benthic foraminifera
(John Wiley & Sons, 2017-06-03)The carbon isotope composition (δ13C) of seawater provides valuable insight on ocean circulation, air-sea exchange, the biological pump, and the global carbon cycle and is reflected by the δ13C of foraminifera tests. Here ... -
Production, use, and fate of all plastics ever made
(American Association for the Advancement of Science, 2017-07-19)Plastics have outgrown most man-made materials and have long been under environmental scrutiny. However, robust global information, particularly about their end-of-life fate, is lacking. By identifying and synthesizing ... -
Deep convection simulation from the MITgcm (MIT General Circulation Model) (IVOMLS project)
(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2017-08-07)All experiments are preformed using the MIT General Circulation Model (MITgcm). The model is configured to allow non-hydrostatic dynamics to explicitly resolve deep convection. The model domain is a box with periodic ... -
Habitat preferences of baleen whales in a mid-latitude habitat
(2016-08)Understanding the dynamics of baleen whale distribution is essential to predict how environmental changes can affect their ecology and, in turn, ecosystem functioning. Recent work showed that mid-latitude habitats along ...
