Results 221 to 230 of about 85,550 (309)

Upper Ocean Cycling of Iron South of the Polar Front: Biological Patterns and Processes

Global Biogeochemical Cycles, Volume 40, Issue 4, April 2026.
Abstract Samples from the upper 300 m along the 52°S band, south of the Antarctic Polar Front in the Atlantic sector of the Southern Ocean, including a 3‐week monitoring of a persistent bloom, were analyzed to advance our understanding of iron cycling and supply to recurrent phytoplankton blooms.
Luis M. Laglera, Juan Santos‐Echeandía, Viena Puigcorbé, Christine Klass, Dieter Wolf‐Gladrow   +4 more
wiley   +1 more source

IoT-Driven Pull Scheduling to Avoid Congestion in Human Emergency Evacuation. [PDF]

Sensors (Basel)
Gelenbe E, Ma Y.
europepmc   +1 more source

Spatial Patterns and Regulation of Nanomolar‐Level Nutrients in the Surface Oligotrophic Oceans

Global Biogeochemical Cycles, Volume 40, Issue 4, April 2026.
Abstract Ambient nutrient concentrations and their ratios regulate phytoplankton physiology and biomass in the ocean. In oligotrophic surface waters, nitrate and ammonium (NH4) concentrations are often below conventional analytical detection limits (50–100 nM).
Taketoshi Kodama, Adam C. Martiny, Fuminori Hashihama, Ken Furuya   +3 more
wiley   +1 more source

Ship wake-induced water column mixing and meter-scale seabed erosion in the Baltic Sea. [PDF]

Nat Commun
Geersen J, Feldens P, Rollwage L, Baumann LM, Krämer K, Westfeld P, Krastel S, Ahmerkamp S, Tauber F, von Deimling JS.   +9 more
europepmc   +1 more source

Global Spatial and Temporal Variability of the Oceanic Cool Skin Effect

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract The oceanic cool skin effect is characterized by a temperature depression between the ocean's submillimeter thermal skin layer (SSTskin) and the underlying water (SSTdepth). This study evaluates the ability of the widely used Fairall et al. (1996), https://doi.org/10.1029/95jc03190 model (F96) to simulate the cool skin effect using surface ...
Chong Jia, Peter J. Minnett
wiley   +1 more source

Quadratic programming-based autonomous cruise control of an intelligent tugboat. [PDF]

PLoS One
He H, Peng T, Li H, Huang D, Liu C.
europepmc   +1 more source

Tidal Modulation of Waves Around the Aleutian Islands

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract Forming a critical part of the North Pacific Great Circle Route, the narrow passes of the Aleutian Islands are considered among the United States' most treacherous waters for maritime navigation. This study investigates the tidal modulation of surface gravity waves throughout the archipelago using a high‐resolution, unstructured‐grid, coupled ...
F. Cassalho, A. L. Kurapov, S. Moghimi, S. M. Durski, J. Y. Zhang, A. Abdolali, B. Khazaei, Y. Sun, F. Ye, E. Myers   +9 more
wiley   +1 more source

On the Assessment of Sinking Particle Fluxes From In Situ Particle Size Distributions

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract The biological carbon pump is a vital component of the global carbon cycle, particularly through the sinking of particulate organic carbon (POC) into the ocean interior. Particle size distribution (PSD) observations from the Underwater Vision Profiler (UVP) have been widely used to quantify sinking POC fluxes.
Elena Ceballos Romero, Ken Buesseler, Erik Fields, Rainer Kiko, Meg Estapa, Lee Karp‐Boss, Samantha Clevenger, Laetitia Drago, David A. Siegel   +8 more
wiley   +1 more source

A regression-based method to estimate vessel mass for use in whale-ship strike risk models. [PDF]

PLoS One
Mayette A, Brillant SW.
europepmc   +1 more source

Monitoring Coral Reef Metabolism Under Changing Oceans–Novel Insights From Seawater Stable Carbon Isotopes

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract Mounting environmental stressors are driving Caribbean reefs from coral to sponge and macroalgae dominance, necessitating a need for more nuanced metrics of reef metabolism under trophic transitions. Drawing upon four seasonally replicated field campaigns to Curaçao, we reveal highly variable net ecosystem productivity (−243 ± 69 C m−2 day−1 ...
Isaiah W. Bolden, Amanda H. V. Timmerman, David R. Clark, Bryce K. Belanger, Jessica L. Oster, Marcos Salas‐Saavedra, Elizabeth M. Niespolo   +6 more
wiley   +1 more source