Search Results - "Dwyer, G. S."

Enhanced Arctic Amplification Began at the Mid-Brunhes Event ~400,000 years ago by Cronin, T. M., Dwyer, G. S., Caverly, E. K., Farmer, J., DeNinno, L. H., Rodriguez-Lazaro, J., Gemery, L.

“…Arctic Ocean temperatures influence ecosystems, sea ice, species diversity, biogeochemical cycling, seafloor methane stability, deep-sea circulation, and CO 2…”
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Deep Arctic Ocean warming during the last glacial cycle by Cronin, T. M., Dwyer, G. S., Farmer, J., Bauch, H. A., Spielhagen, R. F., Jakobsson, M., Nilsson, J., Briggs, W. M., Stepanova, A.

“…In the Arctic Ocean, a salinity gradient separates a shallow layer of cold, relatively fresh water from the warmer, saltier Atlantic water below. A…”
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Medieval Warm Period, Little Ice Age and 20th century temperature variability from Chesapeake Bay by Cronin, T.M, Dwyer, G.S, Kamiya, T, Schwede, S, Willard, D.A

“…We present paleoclimate evidence for rapid (<100 years) shifts of ∼2–4 °C in Chesapeake Bay (CB) temperature ∼2100, 1600, 950, 650, 400 and 150 years before…”
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The Medieval Climate Anomaly and Little Ice Age in Chesapeake Bay and the North Atlantic Ocean by Cronin, T.M., Hayo, K., Thunell, R.C., Dwyer, G.S., Saenger, C., Willard, D.A.

“…A new 2400-year paleoclimate reconstruction from Chesapeake Bay (CB) (eastern US) was compared to other paleoclimate records in the North Atlantic region to…”
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Ecology and shell chemistry of Loxoconcha matagordensis by Cronin, T.M., Kamiya, T., Dwyer, G.S., Belkin, H., Vann, C.D., Schwede, S., Wagner, R.

“…Studies of the seasonal ecology and shell chemistry of the ostracode Loxoconcha matagordensis and related species of Loxoconcha from regions off eastern North…”
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Orbital and suborbital variability in North Atlantic bottom water temperature obtained from deep-sea ostracod Mg/Ca ratios by Cronin, T.M., Dwyer, G.S., Baker, P.A., Rodriguez-Lazaro, J., DeMartino, D.M.

“…Magnesium/calcium (Mg/Ca) ratios were measured in the deep-sea ostracod (Crustacea) genus Krithe from Chain core 82-24-4PC from the western mid-Atlantic Ridge…”
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Multiproxy evidence of Holocene climate variability from estuarine sediments, eastern North America by Cronin, T. M., Thunell, R., Dwyer, G. S., Saenger, C., Mann, M. E., Vann, C., Seal II, R. R.

“…We reconstructed paleoclimate patterns from oxygen and carbon isotope records from the fossil estuarine benthic foraminifera Elphidium and Mg/Ca ratios from…”
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North Atlantic Deepwater Temperature Change During Late Pliocene and Late Quaternary Climatic Cycles by Dwyer, Gary S., Cronin, Thomas M., Baker, Paul A., Raymo, Maureen E., Buzas, Jeffrey S., Corrège, Thierry

“…Variations in the ratio of magnesium to calcium (Mg/Ca) in fossil ostracodes from Deep Sea Drilling Project Site 607 in the deep North Atlantic show that the…”
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Mid-Pliocene deep-sea bottom-water temperatures based on ostracode Mg/Ca ratios by Cronin, Thomas M., Dowsett, Harry J., Dwyer, Gary S., Baker, Paul A., Chandler, Mark A.

“…We studied magnesium:calcium (Mg/Ca) ratios in shells of the deep-sea ostracode genus Krithe from a short interval in the middle Pliocene between 3.29 and 2.97…”
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Deep-sea ostracode species diversity: response to late Quaternary climate change by Cronin, Thomas M., DeMartino, Dawn M., Dwyer, Gary S., Rodriguez-Lazaro, Julio

“…Late Quaternary ostracode assemblages from the North Atlantic Ocean were studied to establish the effect of climatic changes of the past 210,000 yr (marine…”
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Climate variability from the Florida Bay sedimentary record: possible teleconnections to ENSO, PNA and CNP by Cronin, Thomas M., Dwyer, Gary S., Schwede, Sara B., Vann, Cheryl D., Dowsett, Harry

“…We analyzed decadal and interannual climate variability in South Florida since 1880 using geochemical and faunal paleosalinity indicators from isotopically…”
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Population ecology and shell chemistry of a phytal ostracode species ( Loxoconcha matagordensis) in the Chesapeake Bay watershed by Vann, Cheryl D., Cronin, Thomas M., Dwyer, Gary S.

“…Population ecology and shell chemistry were studied in the phytal ostracode Loxoconcha matagordensis (Swain 1955) collected from Zostera marina seagrass beds…”
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Relationships between radium and radon occurrence and hydrochemistry in fresh groundwater from fractured crystalline rocks, North Carolina (USA) by Vinson, David S., Vengosh, Avner, Hirschfeld, Daniella, Dwyer, Gary S.

“…Naturally-occurring radionuclides (uranium, radium, and radon), major dissolved constituents, and trace elements were investigated in fresh groundwater in 117…”
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A 600 kyr reconstruction of deep Arctic seawater δ18O from benthic foraminiferal δ18O and ostracode Mg / Ca paleothermometry by Farmer, Jesse R, Keller, Katherine J, Poirier, Robert K, Dwyer, Gary S, Schaller, Morgan F, Coxall, Helen K, O'Regan, Matt, Cronin, Thomas M

“…The oxygen isotopic composition of benthic foraminiferal tests (δ18Ob) is one of the pre-eminent tools for correlating marine sediments and interpreting past…”
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Middle Pliocene sea surface temperature variability by Dowsett, Harry J., Chandler, Mark A., Cronin, Thomas M., Dwyer, Gary S.

“…Estimates of sea surface temperature (SST) based upon foraminifer, diatom, and ostracod assemblages from ocean cores reveal a warm phase of the Pliocene…”
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