Zobrazeno 1 - 10
of 759
pro vyhledávání: '"Thomas J. Ryan"'
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Active chlorophyll-a fluorescence was measured during five summer research cruises (2008 – 2016), spanning the Atlantic sector of the Southern Ocean. This unique data set provides information for assessing zonal, inter-annual and intra-seasonal var
Externí odkaz:
https://doaj.org/article/5e51e0e0b53840c28e356da363b684b2
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
The uptake and application of single turnover chlorophyll fluorometers to the study of phytoplankton ecosystem status and microbial functions has grown considerably in the last two decades. However, standardization of measurement protocols, processin
Externí odkaz:
https://doaj.org/article/ddebeb5604ad45f090f60e3d6a3f0696
Autor:
Nina Schuback, Philippe D. Tortell, Ilana Berman-Frank, Douglas A. Campbell, Aurea Ciotti, Emilie Courtecuisse, Zachary K. Erickson, Tetsuichi Fujiki, Kimberly Halsey, Anna E. Hickman, Yannick Huot, Maxime Y. Gorbunov, David J. Hughes, Zbigniew S. Kolber, C. Mark Moore, Kevin Oxborough, Ondřej Prášil, Charlotte M. Robinson, Thomas J. Ryan-Keogh, Greg Silsbe, Stefan Simis, David J. Suggett, Sandy Thomalla, Deepa R. Varkey
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Phytoplankton photosynthetic physiology can be investigated through single-turnover variable chlorophyll fluorescence (ST-ChlF) approaches, which carry unique potential to autonomously collect data at high spatial and temporal resolution. Over the pa
Externí odkaz:
https://doaj.org/article/75dcf97c81d64c7b98f8ae3e0360cdda
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
Chlorophyll fluorescence, primarily used to derive phytoplankton biomass, has long been an underutilized source of information on phytoplankton physiology. Diel fluctuations in chlorophyll fluorescence are affected by both photosynthetic efficiency a
Externí odkaz:
https://doaj.org/article/4390799291144357aaf4ade02a77c525
Autor:
Luke Gregor, Thomas J. Ryan-Keogh, Sarah-Anne Nicholson, Marcel du Plessis, Isabelle Giddy, Sebastiaan Swart
Publikováno v:
Frontiers in Marine Science, Vol 6 (2019)
Underwater gliders have become widely used in the last decade. This has led to a proliferation of data and the concomitant development of tools to process the data. These tools are focused primarily on converting the data from its raw form to more ac
Externí odkaz:
https://doaj.org/article/1817b76763134b939696e26afb7c0284
Autor:
Thomas J. Ryan, Richard R. Schaus
This award-winning Civil War history examines Robert E. Lee's retreat from Gettysburg and the vital importance of Civil War military intelligence. While countless books have examined the Battle of Gettysburg, the Confederate Army's retreat to the Pot
Autor:
Thomas J. Ryan
“A fascinating book, and the most detailed account you will find about intelligence operations during the Gettysburg campaign.” —Dr. Vince Houghton, Historian/Curator, International Spy Museum, Washington, DC As intelligence experts have long a
Publikováno v:
Science. 379:834-840
Southern Ocean primary productivity is principally controlled by adjustments in light and iron limitation, but the spatial and temporal determinants of iron availability, accessibility, and demand are poorly constrained, which hinders accurate long-t
Autor:
Hanna M. Kauko, Philipp Assmy, Ilka Peeken, Magdalena Różańska-Pluta, Józef M. Wiktor, Gunnar Bratbak, Asmita Singh, Thomas J. Ryan-Keogh, Sebastien Moreau
Publikováno v:
Biogeosciences
We studied phytoplankton and protozooplankton community composition based on light microscopy, flow cytometry, and photosynthetic pigment data in the Atlantic sector of the Southern Ocean during March 2019 (early austral autumn). Sampling was focused
Autor:
Sandy J. Thomalla, Marcel Du Plessis, Nicolas Fauchereau, Isabelle Giddy, Luke Gregor, Stephanie Henson, Warren R. Joubert, Hazel Little, Pedro M. S. Monteiro, Thato Mtshali, Sarah Nicholson, Thomas J. Ryan-Keogh, Sebastiaan Swart
Quantifying the strength and efficiency of the Southern Ocean biological carbon pump (BCP) and its response to predicted changes in the Earth's climate is fundamental to our ability to predict long-term changes in the global carbon cycle and, by exte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f6872fe7aa33c629156dbb1b5130f09