Zobrazeno 1 - 10
of 1 373
pro vyhledávání: '"Ridgwell , A."'
Publikováno v:
Biogeosciences, Vol 21, Pp 4927-4949 (2024)
Iodine (I) abundance in marine carbonates (measured as an elemental ratio with calcium, I / Ca) is of broad interest as a proxy for local/regional ocean redox. This connection arises because the speciation of iodine in seawater, the balance between i
Externí odkaz:
https://doaj.org/article/cab6a206fda34fe89cff4b0a87b695f0
Autor:
Schwieterman, Edward W., Olson, Stephanie L., Pidhorodetska, Daria, Reinhard, Christopher T., Ganti, Ainsley, Fauchez, Thomas J., Bastelberger, Sandra T., Crouse, Jaime S., Ridgwell, Andy, Lyons, Timothy W.
Publikováno v:
ApJ, 937, 109 (2022)
Nitrous oxide (N2O) -- a product of microbial nitrogen metabolism -- is a compelling exoplanet biosignature gas with distinctive spectral features in the near- and mid-infrared, and only minor abiotic sources on Earth. Previous investigations of N2O
Externí odkaz:
http://arxiv.org/abs/2210.01669
Autor:
A. A. Naidoo-Bagwell, F. M. Monteiro, K. R. Hendry, S. Burgan, J. D. Wilson, B. A. Ward, A. Ridgwell, D. J. Conley
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 1729-1748 (2024)
We extend the ecological component (ECOGEM) of the carbon-centric Grid-Enabled Integrated Earth system model (cGEnIE) to include a diatom functional group. ECOGEM represents plankton community dynamics via a spectrum of ecophysiological traits origin
Externí odkaz:
https://doaj.org/article/ab4f2b09261c4682b9ccdcfe942fb1db
The global ocean circulation plays a pivotal role in the regulation of the Earth's climate. The specific pattern and strength of circulation also determines how carbon and nutrients are cycled and via the resulting distribution of dissolved oxygen, w
Externí odkaz:
http://arxiv.org/abs/2201.07883
Autor:
Reinhard, Christopher T., Olson, Stephanie L., Turner, Sandra Kirtland, Palike, Cecily, Kanzaki, Yoshiki, Ridgwell, Andy
The methane cycle is a key component of the Earth system that links planetary climate, biological metabolism, and the global biogeochemical cycles of carbon, oxygen, sulfur, and hydrogen. However, currently lacking is a numerical model capable of sim
Externí odkaz:
http://arxiv.org/abs/2007.15053
Akademický článek
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Akademický článek
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Autor:
Katherine A. Crichton, Jamie D. Wilson, Andy Ridgwell, Flavia Boscolo-Galazzo, Eleanor H. John, Bridget S. Wade, Paul N. Pearson
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract Paleontological reconstructions of plankton community structure during warm periods of the Cenozoic (last 66 million years) reveal that deep-dwelling ‘twilight zone’ (200–1000 m) plankton were less abundant and diverse, and lived much
Externí odkaz:
https://doaj.org/article/5b6116999af148e09d13b763f94bb098
Autor:
Olson, Stephanie L., Schwieterman, Edward W., Reinhard, Christopher T., Ridgwell, Andy, Kane, Stephen R., Meadows, Victoria S., Lyons, Timothy W.
Publikováno v:
Olson S.L, Schwieterman E.W., Reinhard C.T., Ridgwell A., Kane S.R., Meadows V.W., Lyons T.W. (2018) Atmospheric Seasonality as an Exoplanet Biosignature. Astrophysical Journal Letters 858: L14
Current investigations of exoplanet biosignatures have focused on static evidence of life, such as the presence of biogenic gases like O2 or CH4. However, the expected diversity of terrestrial planet atmospheres and the likelihood of both false posit
Externí odkaz:
http://arxiv.org/abs/1806.04592
Autor:
Hülse, Dominik, Vervoort, Pam, van de Velde, Sebastiaan J., Kanzaki, Yoshiki, Boudreau, Bernard, Arndt, Sandra, Bottjer, David J., Hoogakker, Babette, Kuderer, Matthias, Middelburg, Jack J., Volkenborn, Nils, Kirtland Turner, Sandra, Ridgwell, Andy
Publikováno v:
In Earth-Science Reviews November 2022 234