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pro vyhledávání: '"Johannes C. Wit"'
Autor:
Joan M. Bernhard, Johannes C. Wit, Victoria R. Starczak, David J. Beaudoin, William G. Phalen, Daniel C. McCorkle
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Ocean chemistry is changing as a result of human activities. Atmospheric carbon dioxide (CO2) concentrations are increasing, causing an increase in oceanic pCO2 that drives a decrease in oceanic pH, a process called ocean acidification (OA). Higher C
Externí odkaz:
https://doaj.org/article/2d212141d7fd4c849af814d81af7bb14
Autor:
Johannes C. Wit, David J. Beaudoin, William G. Phalen, Joan M. Bernhard, Daniel C. McCorkle, Victoria R. Starczak
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Ocean chemistry is changing as a result of human activities. Atmospheric carbon dioxide (CO2) concentrations are increasing, causing an increase in oceanic pCO2 that drives a decrease in oceanic pH, a process called ocean acidification (OA). Higher C
Publikováno v:
The Journal of Foraminiferal Research. 46:25-33
The oceans are absorbing increasing amounts of carbon dioxide (CO 2 ) as a result of rising anthropogenic atmospheric CO 2 emissions. This increase in oceanic CO 2 leads to the lowering of seawater pH, which is known as ocean acidification (OA). Simu
Autor:
William G. Phalen, Francesco Mezzo, Marleen Jeglinski, Helena L. Filipsson, Johannes C. Wit, Anna McIntyre-Wressnig, Joan M. Bernhard
Publikováno v:
Biogeosciences, Vol 12, Iss 18, Pp 5515-5522 (2015)
Insights into oceanographic environmental conditions such as paleoproductivity, deep-water temperatures, salinity, ice volumes, and nutrient cycling have all been obtained from geochemical analyses of biomineralized carbonate of marine organisms. How
Publikováno v:
The Journal of Foraminiferal Research. 44:341-351
Specimens of Bolivina argentea and Bulimina marginata , two widely distributed temperate benthic foraminiferal species, were cultured at constant temperature and controlled p CO2 (ambient, 1000 ppmv, and 2000 ppmv) for six weeks to assess the effect
Autor:
Joan M. Bernhard, Johannes C. Wit, Gernot Nehrke, Gert-Jan Reichart, Lennart J. de Nooijer, Inge van Dijk
Publikováno v:
Scopus-Elsevier
Agglutinated foraminifera create a shell by assembling particles from the sediment and comprise a significant part of the foraminiferal fauna. Despite their high abundance and diversity, their response to environmental perturbations and climate chang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7811080650950bfce588e8cf363a7bbe
https://doi.org/10.2113/gsjfr.47.3.294
https://doi.org/10.2113/gsjfr.47.3.294
Publikováno v:
Biogeosciences, Vol 10, Iss 10, Pp 6375-6387 (2013)
Biogeosciences, 10, 6375. Copernicus Publications
Biogeosciences, 10, 6375. Copernicus Publications
Salinity and temperature determine seawater density and differences in both thereby control global themohaline circulation. Whereas numerous proxies have been calibrated and applied to reconstruct temperature, a direct and independent proxy for salin
Publikováno v:
Biogeosciences
Biogeosciences, 2012, 9 (4), pp.4947-4977. ⟨10.5194/bgd-9-4947-2012⟩
Biogeosciences, 2012, 9 (4), pp.4947-4977. ⟨10.5194/bgd-9-4947-2012⟩
The reconstruction of past temperatures is often achieved through measuring the Mg/Ca value of foraminiferal test carbonate. The diversity in foraminiferal Mg/Ca-temperature calibrations suggests that there is also a biological control on this proxy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d9ef31163850fd32c16f7c130782a9e
https://doi.org/10.5194/bgd-9-4947-2012
https://doi.org/10.5194/bgd-9-4947-2012