Search Results - "Charette, M. A"

Nitrogen Biogeochemistry of Submarine Groundwater Discharge by Kroeger, K. D., Charette, M. A.

“…To investigate the role of the seepage zone in transport, chemical speciation, and attenuation of nitrogen loads carried by submarine groundwater discharge, we…”
Get full text

How significant is submarine groundwater discharge and its associated dissolved inorganic carbon in a river-dominated shelf system? by Liu, Q, Dai, M, Chen, W, Huh, C.-A, Wang, G, Li, Q, Charette, M. A

“…In order to assess the role of submarine groundwater discharge (SGD) and its impact on the carbonate system on the northern South China Sea (NSCS) shelf, we…”
Get full text

Long Distance Transport of Subsurface Sediment‐Derived Iron From Asian to Alaskan Margins in the North Pacific Ocean by Sieber, M., Lanning, N. T., Steffen, J. M., Bian, X., Yang, S.‐C., Lee, J. M., Weiss, G., Hunt, H. R., Charette, M. A., Moore, W. S., Hautala, S. L., Hatta, M., Lam, P. J., John, S. G., Fitzsimmons, J. N., Conway, T. M.

“…The international GEOTRACES program has been instrumental in demonstrating how marine sediments are a critical source of dissolved Fe to the world's oceans…”
Get full text

Radium-based estimates of cesium isotope transport and total direct ocean discharges from the Fukushima Nuclear Power Plant accident by Charette, M. A, Breier, C. F, Henderson, P. B, Pike, S. M, Rypina, I. I, Jayne, S. R, Buesseler, K. O

“…Radium has four naturally occurring isotopes that have proven useful in constraining water mass source, age, and mixing rates in the coastal and open ocean. In…”
Get full text

Shelf-derived iron inputs drive biological productivity in the southern Drake Passage by Dulaiova, H., Ardelan, M. V., Henderson, P. B., Charette, M. A.

“…In the Southern Ocean near the Antarctic Peninsula, Antarctic Circumpolar Current (ACC) fronts interact with shelf waters facilitating lateral transport of…”
Get full text

Quantifying submarine groundwater discharge in the coastal zone via multiple methods by Burnett, W.C., Aggarwal, P.K., Aureli, A., Bokuniewicz, H., Cable, J.E., Charette, M.A., Kontar, E., Krupa, S., Kulkarni, K.M., Loveless, A., Moore, W.S., Oberdorfer, J.A., Oliveira, J., Ozyurt, N., Povinec, P., Privitera, A.M.G., Rajar, R., Ramessur, R.T., Scholten, J., Stieglitz, T., Taniguchi, M., Turner, J.V.

“…Submarine groundwater discharge (SGD) is now recognized as an important pathway between land and sea. As such, this flow may contribute to the biogeochemical…”
Get full text

Nutrient-rich submarine groundwater discharge fuels the largest green tide in the world by Zhao, Shibin, Xu, Bochao, Yao, Qinzhen, Burnett, W.C., Charette, M.A., Su, Rongguo, Lian, Ergang, Yu, Zhigang

“…One of the largest “green tide” (Ulva prolifera) outbreaks in the world has occurred every year from 2007 to present in the Southern Yellow Sea, China…”
Get full text

Geochemical and physical sources of radon variation in a subterranean estuary — Implications for groundwater radon activities in submarine groundwater discharge studies by Dulaiova, H., Gonneea, M.E., Henderson, P.B., Charette, M.A.

“…Submarine groundwater discharge (SGD), from springs and diffuse seepage, has long been recognized as a source of chemical constituents to the coastal ocean…”
Get full text

Particle Export during the Southern Ocean Iron Experiment (SOFeX) by Buesseler, K. O., Andrews, J. E., Pike, S. M., Charette, M. A., Goldson, L. E., Brzezinski, M. A., Lance, V. P.

“…We studied the effect of iron addition on particle export in the Southern Ocean by measuring changes in the distribution of thorium-234 during a 4-week iron…”
Get full text

Current and historical rates of input of mercury to the Penobscot River, Maine, from a chlor-alkali plant by Turner, R.R., Kopec, A.D., Charette, M.A., Henderson, P.B.

“…Mercury inputs by surface and ground water sources to Penobscot River from a defunct Hg-cell chlor-alkali plant were measured in 2009–10 and estimated for the…”
Get full text

Submarine groundwater discharge to a small estuary estimated from radon and salinity measurements and a box model by Crusius, J., Koopmans, D., Bratton, J. F., Charette, M. A., Kroeger, K., Henderson, P., Ryckman, L., Halloran, K., Colman, J. A.

“…Submarine groundwater discharge was quantified by a variety of methods for a 4-day period during the early summer of 2004, in Salt Pond, adjacent to Nauset…”
Get full text

Differences in seawater particulate organic carbon concentration in samples collected using small- and large-volume methods: the importance of DOC adsorption to the filter blank by Moran, S.B, Charette, M.A, Pike, S.M, Wicklund, C.A

“…Particulate organic carbon (POC) data collected by small-volume (∼1–2 l) bottle filtration and large-volume (∼100–600 l) methods are compared for samples from…”
Get full text

Observational and Modeling Evidence of Seasonal Trends in Sediment‐Derived Material Inputs to the Chukchi Sea by Kipp, L. E., Spall, M. A., Pickart, R. S., Kadko, D. C., Moore, W. S., Dabrowski, J. S., Charette, M. A.

“…Benthic inputs of nutrients help support primary production in the Chukchi Sea and produce nutrient‐rich water masses that ventilate the halocline of the…”
Get full text

Nitrogen Flux and Speciation through the Subterranean Estuary of Waquoit Bay, Massachusetts by Talbot, J. M., Kroeger, K. D., Rago, A., Allen, M. C., Charette, M. A.

“…Fresh groundwater discharge is an important vehicle for nitrogen transport to coastal waters. Talbor et al, in their study, investigates the flux of dissolved…”
Get full text

Radiochemical Estimates of Submarine Groundwater Discharge to Waquoit Bay, Massachusetts by Abraham, D. M., Charette, M. A., Allen, M. C., Rago, A., Kroeger, K. D.

“…Recent studies have employed radium isotopes and randon-222, both naturally enriched in groundwater relative to surface water due to high uranium content in…”
Get full text

The Effects of Iron Fertilization on Carbon Sequestration in the Southern Ocean by Buesseler, Ken O., Andrews, John E., Pike, Steven M., Charette, Matthew A.

“…An unresolved issue in ocean and climate sciences is whether changes to the surface ocean input of the micronutrient iron can alter the flux of carbon to the…”
Get full text

Radium isotopes to investigate the water mass pathways on the Kerguelen Plateau (Southern Ocean) by van Beek, P., Bourquin, M., Reyss, J.-L., Souhaut, M., Charette, M.A., Jeandel, C.

“…Natural iron fertilization promotes the phytoplankton bloom that takes place on the Kerguelen Plateau in the Indian sector of the Southern Ocean. We measured…”
Get full text

Utility of Radium Isotopes for Evaluating the Input and Transport of Groundwater-Derived Nitrogen to a Cape Cod Estuary by Charette, Matthew A., Buesseler, Ken O., Andrews, John E.

“…Because of rapid increases in population, anthropogenic sources of nitrogen have adversely impacted the water quality of coastal ponds on Cape Cod. A major…”
Get full text

On the Time Scales of Magma Genesis, Melt Evolution, Crystal Growth Rates and Magma Degassing in the Erebus Volcano Magmatic System Using the 238U, 235U and 232Th Decay Series by Sims, K. W. W., Pichat, S., Reagan, M. K., Kyle, P. R., Dulaiova, H., Dunbar, N. W., Prytulak, J., Sawyer, G., Layne, G. D., Blichert-Toft, J., Gauthier, P. J., Charette, M. A., Elliott, T. R.

“…We investigate the time scales of magma genesis, melt evolution, crystal growth rates and magma degassing in the Erebus volcano magmatic system using…”
Get full text

pH-Dependent iron oxide precipitation in a subterranean estuary by Spiteri, C., Regnier, P., Slomp, C.P., Charette, M.A.

“…Iron-oxide-coated sediment particles in subterranean estuaries can act as a geochemical barrier (“iron curtain”) for various chemical species in groundwater…”
Get full text