Now showing items 1-10 of 253
Methane sources in gas hydrate-bearing cold-seeps : evidence from radiocarbon and stable isotopes
Fossil methane from the large and dynamic marine gas hydrate reservoir has the potential to influence oceanic and atmospheric carbon pools. However, natural radiocarbon (14C) measurements of gas hydrate methane have been ...
Progress and challenges in coupled hydrodynamic-ecological estuarine modeling
Numerical modeling has emerged over the last several decades as a widely accepted tool for investigations in environmental sciences. In estuarine research, hydrodynamic and ecological models have moved along parallel tracks ...
Using a Bayesian network to predict barrier island geomorphologic characteristics
(John Wiley & Sons, 2015-12-04)
Quantifying geomorphic variability of coastal environments is important for understanding and describing the vulnerability of coastal topography, infrastructure, and ecosystems to future storms and sea level rise. Here we ...
Temporal evolution of the momentum balance terms and frictional adjustment observed over the inner shelf during a storm
(Copernicus Publications on behalf of the European Geosciences Union, 2016-01-18)
We investigate the rapidly changing equilibrium between the momentum sources and sinks during the passage of a single two-peak storm over the Catalan inner shelf (NW Mediterranean Sea). Velocity measurements at 24 m water ...
Estimating time-dependent connectivity in marine systems
(John Wiley & Sons, 2016-02-04)
Hydrodynamic connectivity describes the sources and destinations of water parcels within a domain over a given time. When combined with biological models, it can be a powerful concept to explain the patterns of constituent ...
Variability of bed drag on cohesive beds under wave action
(MDPI AG, 2016-04-01)
Drag force at the bed acting on water flow is a major control on water circulation and sediment transport. Bed drag has been thoroughly studied in sandy waters, but less so in muddy coastal waters. The variation of bed ...
Dynamic reusable workflows for ocean science
(MDPI AG, 2016-10-25)
Digital catalogs of ocean data have been available for decades, but advances in standardized services and software for catalog searches and data access now make it possible to create catalog-driven workflows that ...
Distribution of crustal types in Canada Basin, Arctic Ocean
Seismic velocities determined from 70 sonobuoys widely distributed in Canada Basin were used to discriminate crustal types. Velocities of oceanic layer 3 (6.7 -7.1 km/s), transitional (7.2-7.6 km/s) and continental crust ...
Estimating hydrodynamic roughness in a wave-dominated environment with a high-resolution acoustic Doppler profiler
(American Geophysical Union, 2005-06-30)
Hydrodynamic roughness is a critical parameter for characterizing bottom drag in boundary layers, and it varies both spatially and temporally due to variation in grain size, bedforms, and saltating sediment. In this paper ...
Correction to “Elastic wave speeds and moduli in polycrystalline ice Ih, sI methane hydrate, and sII methane-ethane hydrate”
(American Geophysical Union, 2009-04-10)