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Filter Total Items: 1780
Cloud-native repositories for big scientific data Cloud-native repositories for big scientific data
Scientific data have traditionally been distributed via downloads from data server to local computer. This way of working suffers from limitations as scientific datasets grow toward the petabyte scale. A “cloud-native data repository,” as defined in this article, offers several advantages over traditional data repositories—performance, reliability, cost-effectiveness, collaboration
Authors
Ryan Abernathey, Tom Augspurger, Anderson Banihirwe, Charles C. Blackmon-Luca, Timothy Crone, Chelle Gentemann, Joseph Hamman, Naomi Henderson, Chiara Lepore, Theo McCaie, Niall Robinson, Richard P. Signell
Groundwater discharge impacts marine isotope budgets of Li, Mg, Ca, Sr, and Ba Groundwater discharge impacts marine isotope budgets of Li, Mg, Ca, Sr, and Ba
Groundwater-derived solute fluxes to the ocean have long been assumed static and subordinate to riverine fluxes, if not neglected entirely, in marine isotope budgets. Here we present concentration and isotope data for Li, Mg, Ca, Sr, and Ba in coastal groundwaters to constrain the importance of groundwater discharge in mediating the magnitude and isotopic composition of terrestrially...
Authors
Kimberly Mayfield, Anton Eisenhauer, Danielle P. Santiago Ramos, John A. Higgins, Tristan Horner, Maureen Auro, Tomas Magna, Nils Moosdorf, Matthew Charette, Meagan Gonneea Eagle, Carolyn Brady, Nemanja Komar, Bernhard Peucker-Ehrenbrink, Adina Paytan
Estimating the impact of seep methane oxidation on ocean pH and dissolved inorganic radiocarbon along the U.S. mid‐Atlantic Bight Estimating the impact of seep methane oxidation on ocean pH and dissolved inorganic radiocarbon along the U.S. mid‐Atlantic Bight
Ongoing ocean warming can release methane (CH4) currently stored in ocean sediments as free gas and gas hydrates. Once dissolved in ocean waters, this CH4 can be oxidized to carbon dioxide (CO2). While it has been hypothesized that the CO2 produced from aerobic CH4 oxidation could enhance ocean acidification, a previous study conducted in Hudson Canyon shows that CH4 oxidation has a...
Authors
Fenix Garcia-Tigreros, Mihai Leonte, Carolyn D. Ruppel, Angel Ruiz-Angulo, DoongJoo Joung, Benjamin Young, John D. Kessler
On the use of statistical analysis to understand submarine landslide processes and assess their hazard On the use of statistical analysis to understand submarine landslide processes and assess their hazard
Because of their inaccessibility, submarine landslides are typically studied individually and at great effort and expense to provide knowledge of the specific site conditions where these landslides occur. Statistical analysis of submarine landslide scars can offer generalized perspectives on the processes that initiate submarine landslides and can help toward hazard assessment in areas...
Authors
Uri S. ten Brink, Eric L. Geist
Limited mantle hydration by bending faults at the Middle America Trench Limited mantle hydration by bending faults at the Middle America Trench
Seismic anisotropy measurements show that upper mantle hydration at the Middle America Trench (MAT) is limited to serpentinization and/or water in fault zones, rather than distributed uniformly. Subduction of hydrated oceanic lithosphere recycles water back into the deep mantle, drives arc volcanism, and affects seismicity at subduction zones. Constraining the extent of upper mantle...
Authors
Nathaniel C. Miller, Danile Lizarralde, John A. Collins, Steven Holbrook, Harm van Avendonk
Soil organic carbon development and turnover in natural and disturbed salt marsh environments Soil organic carbon development and turnover in natural and disturbed salt marsh environments
Salt marsh survival with sea‐level rise (SLR) increasingly relies on soil organic carbon (SOC) accumulation and preservation. Using a novel combination of geochemical approaches, we characterized fine SOC (≤1 mm) supporting marsh elevation maintenance. Overlaying thermal reactivity, source (δ13C), and age (F14C) information demonstrates several processes contributing to soil development...
Authors
Sheron Luk, Katherine Todd-Brown, Meagan J. Eagle, Ann McNichol, Jonathan Sanderman, Kelsey Gosselin, Amanda C. Spivak
Ideas and perspectives: A strategic assessment of methane and nitrous oxide measurements in the marine environment Ideas and perspectives: A strategic assessment of methane and nitrous oxide measurements in the marine environment
>In the current era of rapid climate change, accurate characterization of climate-relevant gas dynamics – namely production, consumption, and net emissions – is required for all biomes, especially those ecosystems most susceptible to the impact of change. Marine environments include regions that act as net sources or sinks for numerous climate-active trace gases including methane (CH4)...
Authors
S.T. Wilson, A.N. Al-Haj, A. Bourbonnais, C. Frey, R.W. Fulweiler, John D. Kessler, H.K. Marchant, J Milucka, N.E. Ray, P Suntharalingham, B.F. Thornton, R.C. Upstill-Goddard, T.S. Weber, D.L. Arévalo-Martínez, H.W. Bange, H.M. Benway, D. Bianchi, A.V. Borges, B.X. Chang, P.M. Crill, D.A. del Valle, L. Farias, S.B. Joye, A. Kock, J Labidi, C.C. Manning, John W. Pohlman, G. Rehder, K.J. Sparrow, P.D. Tortell, T. Truede, D.L. Valentine, B.B. Ward, S. Yang, L.N. Yurganov
Evaluation of a roughness length parametrization accounting for wind–wave alignment in a coupled atmosphere–wave model Evaluation of a roughness length parametrization accounting for wind–wave alignment in a coupled atmosphere–wave model
The importance of wind energy as an alternative energy source has increased over the latest years with more focus on offshore winds. A good estimation of the offshore winds is thus of major importance for this industry. Up to now the effect of the wind–wave (mis)alignment has not yet been taken into account in coupled atmosphere–wave models to study the vertical wind profile and power...
Authors
Sara Porchetta, O. Temel, John C. Warner, J.C. Munoz-Esparza, J Monbaliu, J. van Beeck, N. van Lipzig
Sediment dynamics of a divergent bay–marsh complex Sediment dynamics of a divergent bay–marsh complex
Bay–marsh systems, composed of an embayment surrounded by fringing marsh incised by tidal channels, are widely distributed coastal environments. External sediment availability, marsh-edge erosion, and sea-level rise acting on such bay–marsh complexes may drive diverse sediment-flux regimes. These factors reinforce the ephemeral and dynamic nature of fringing marshes: material released by...
Authors
Daniel J. Nowacki, Neil K. Ganju
Along-margin variations in breakup volcanism at the Eastern North American Margin Along-margin variations in breakup volcanism at the Eastern North American Margin
We model the magnetic signature of rift-related volcanism to understand the distribution and volumeofmagmatic activity that occurred during the breakup of Pangaea and early Atlantic opening at the Eastern North American Margin (ENAM).Along-strike variations in the amplitude and character of the prominent East Coast Magnetic Anomaly (ECMA) suggest that the emplacement of the volcanic...
Authors
John A. Greene, Masako Tominaga, Nathaniel C. Miller
Using tracer variance decay to quantify variability of salinity mixing in the Hudson River Estuary Using tracer variance decay to quantify variability of salinity mixing in the Hudson River Estuary
The salinity structure in an estuary is controlled by time‐dependent mixing processes. However, the locations and temporal variability of where significant mixing occurs is not well‐understood. Here we utilize a tracer variance approach to demonstrate the spatial and temporal structure of salinity mixing in the Hudson River Estuary. We run a 4‐month hydrodynamic simulation of the tides...
Authors
John C. Warner, W Rockwill Geyer, David K. Ralston, Tarandeep S. Kalra
Probabilistic patterns of inundation and biogeomorphic changes due to sea-level rise along the northeastern U.S. Atlantic coast Probabilistic patterns of inundation and biogeomorphic changes due to sea-level rise along the northeastern U.S. Atlantic coast
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Authors
Erika E. Lentz, Sara L. Zeigler, E. Robert Thieler, Nathaniel G. Plant