Results 51 to 60 of about 1,582 (146)

Comparison of ocean-colour algorithms for particulate organic carbon in global ocean

Frontiers in Marine Science
In the oceanic surface layer, particulate organic carbon (POC) constitutes the biggest pool of particulate material of biological origin, encompassing phytoplankton, zooplankton, bacteria, and organic detritus.
Christina Eunjin Kong, Christina Eunjin Kong, Shubha Sathyendranath, Shubha Sathyendranath, Thomas Jackson, Dariusz Stramski, Robert J. W. Brewin, Gemma Kulk, Gemma Kulk, Bror F. Jönsson, Hubert Loisel, Martí Galí, Chengfeng Le   +12 more
doaj   +1 more source

Estimating Carbon Pools in the European Shelf Sea Environment: Replacing Reanalysis by Model‐Informed Machine Learning?

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Shelf seas are important for the economy and the carbon cycle, but shelf sea observations for carbon pools are often sparse or highly uncertain. An alternative can be provided by carbon reanalyses (whether assimilating proxy variables, such as chlorophyll‐a $a$, or directly carbon), but these are often expensive to run.
Jozef Skákala
wiley   +1 more source

Amplifying effects of multiyear La Niña on phytoplankton biomass in the tropical Pacific

Limnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract Traditional views suggest that overall phytoplankton biomass in the tropical Pacific should be proportional to La Niña intensity because of enhanced nutrient supplies from equatorial upwelling associated with La Niña intensity. Here, composite analysis of satellite‐derived chlorophyll a (Chl a, a proxy for biomass) data across five multiyear ...
Lei Lin, Kun Xu, Wei Tan, Jinliang Liu, Bingzhang Chen, Dongyan Liu   +5 more
wiley   +1 more source

Spatiotemporal variability of chlorophyll-a concentration in the South Brazil Bight using 25 years of multi-sensor orbital data (1998–2022)

Frontiers in Remote Sensing
Chlorophyll-a (Chl-a) concentration is a key climate variable, as its variability is associated with meteorological and oceanographic processes. This study analyzed 25 years (1998–2022) of Chl-a data from the European Space Agency (ESA) Ocean Colour ...
João Felipe Cardoso dos Santos, Milton Kampel, Milton Kampel, Vincent Vantrepotte   +3 more
doaj   +1 more source

Latitude Dictates Global Marine Diatom Dynamics: Insights From 25 years of Satellite Data

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract Marine diatoms are key players in global biogeochemical cycles, yet their spatiotemporal dynamics and the underlying drivers remain poorly understood. Here, we developed a novel remote sensing model and utilized 25 years of global satellite data to investigate marine diatom biomass.
Deyong Sun, Minghui Li, Shengqiang Wang, Cédric Jamet, Davide Dionisi, Zixu Ye, Peng Chen   +6 more
wiley   +1 more source

Autonomous Float Data Reveal Decoupled Trends in Chlorophyll and Stratification in the Indian Ocean

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Recent studies have shown that the Indian Ocean is warming significantly, but how this warming impacts primary production is largely unresolved due to a relative lack of depth‐resolved biological observations. In this study, we have used Biogeochemical‐Argo data from 2013 to 2022, comprising over 9,000 individual profiles, to examine regional ...
Marufa Ishaque, Sophie Clayton, John Klinck   +2 more
wiley   +1 more source

Assessment of Platelet Crossmatch Results by Solid Phase Red Cell Adherence Assay among Pediatric Hemato-oncology Patients in a Tertiary Care Oncology Center

Global Journal of Transfusion Medicine
Background and Objectives: This study employed platelets cross-matched by the solid-phase red cell adherence (SPRCA) method and oc-related it with posttransfusion platelet count increment in terms of corrected count increment (CCI) and percent platelet ...
Priti Desai, Anisha Navkudkar, Gourav Bain, Sunil B. Rajadhyaksha   +3 more
doaj   +1 more source

Recent Changes and Variability of Suspended Particulate Matter in European and Mediterranean Coastal Waters Inferred From OLCI Data

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Suspended Particulate Matter (SPM) plays a central role in coastal marine ecosystems, influencing light availability, primary production, and transport of sediments, nutrients, and pollutants. Monitoring its variability is essential for understanding the impacts of both natural and anthropogenic pressures on coastal regions.
Corentin Subirade, Cédric Jamet, Vincent Vantrepotte   +2 more
wiley   +1 more source

Chlorophyll-a modulation in the Arabian Gulf using two decades of merged ocean-color data

Frontiers in Marine Science
IntroductionThe Arabian Gulf (Gulf) is a dynamic marine ecosystem in which phytoplankton productivity, indicated by Chlorophyll-a (Chl-a), is strongly affected by environmental and climatic variables. Understanding the spatiotemporal variability of Chl-a
Muhammad Shafeeque, Abdul Azeez Saleem, Akurathi V. S. Chaitanya, C. P. Abdulla, Salim Lateef, Jiya Albert   +5 more
doaj   +1 more source

Beyond the Nutrient Paradigm: Thermal Intensity and Duration Trigger Opposite Phytoplankton Responses to Marine Heatwaves in the East China Sea

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Marine heatwaves (MHWs) profoundly impact marine ecosystems, yet it is unclear how their thermal characteristics shape phytoplankton responses. Using satellite and reanalysis data validated with a multi‐year in situ data set from the East China Sea, we show that the intensity and duration of MHWs can contribute to contrasting outcomes ...
Jiarui Zhou, Xin Liu, Edward A. Laws, Charlotte Laufkötter, Weinan Li, Jingxiao Wang, Changlin Li, Wupeng Xiao, Yuan Shen, Bangqin Huang   +9 more
wiley   +1 more source