Results 101 to 110 of about 43,178 (255)

Poleward Shift of Arctic Oceanic CO2 Uptake From Asymmetric Seasonal Changes Under Climate Warming

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract The Arctic region plays a disproportionate role in the global carbon cycle by acting as a critical sink for atmospheric CO2. However, how Arctic air‐sea CO2 fluxes will respond to continued warming regarding their spatial and temporal changes remains poorly understood.
Rongrong Pan, Qi Shu, Qiang Wang, Liang Xue, Yanguang Liu, Ying Bao, Min Zhang, Zhixuan Feng, Zhenya Song, Yan He, Shizhu Wang, Fangli Qiao   +11 more
wiley   +1 more source

Research on Complexity Quantification Method for Multibeam Point Clouds Based on Feature Joint Entropy

Journal of Marine Science and Engineering
This study addresses the challenge of simplifying massive multibeam seafloor topographic point cloud datasets featuring significant spatial heterogeneity.
Dekun Liang, Yang Cui, Shaohua Jin, Yuan Wei, Jichuan Tan   +4 more
doaj   +1 more source

ECDIS Development Laboratory and Navigation Technology Demonstration Center [PDF]

, 2001
The U.S. Navy is undergoing a major transition from traditional, paper chart navigation to computer-based electronic charting. The Chief of Naval Operations (CNO) has mandated that all Navy ships will navigate strictly through electronic means by FY07 ...
Alexander, Lee, Fralick, Charles M, Van Norden, Maxim F   +2 more
core   +1 more source

Differential Drivers of Thermogenic and Bulk Dissolved Organic Matter in the Indian Ocean

Global Biogeochemical Cycles, Volume 40, Issue 5, May 2026.
Abstract The oceanic dissolved organic matter (DOM) pool contains a substantial fraction of recalcitrant carbon, with thermogenic organic compounds representing a chemically distinct, long‐lived component. However, the distribution and transformation of these compounds remain poorly constrained in the Indian Ocean, a key basin of the global overturning
Tassiana S. G. Serafim, Heike Simon, Jutta Niggemann, Christopher P. Rüger, Ralf Zimmermann, Tabea N. L. Mairon, Joanna J. Waniek, Helena Osterholz   +7 more
wiley   +1 more source

Investigating the Impact of Spatiotemporal Variations in Water Surface Optical Properties on Satellite-Derived Bathymetry Estimates in the Eastern Mediterranean

Remote Sensing
Bathymetric data are crucial for benthic monitoring in coastal areas but are traditionally obtained through costly and geographically limited acoustic methods.
Fickrie Muhammad, Ioannis Tsimpouxis, Harald Sternberg   +2 more
doaj   +1 more source

Automatic grounding of vague geographic ontology in data [PDF]

, 2007
In constructing an ontological theory of a domain such as geography, it is important not only to take account of the vagueness and ambiguity which is inherent in many of the relevant concepts, but also to be able to relate the high-level definitions of ...
Bennett, Brandon, Mallenby, David, Third, Allan   +2 more
core  

Internal Wave‐Driven Mixing in the North Atlantic From Finescale Observations and the IDEMIX Closure

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Oceanic turbulent mixing plays a fundamental role in global circulation and climate regulation, yet its spatial variability remains poorly observed, especially in the deep ocean. This study presents a detailed observational analysis of finescale turbulence in two North Atlantic regions, using repeated full‐depth profiles of stratification and ...
Dinora Garcia Santacruz, Christian Mertens, Dirk Olbers, Friederike Pollmann   +3 more
wiley   +1 more source

Microbial Controls on Carbon Pump Partitioning in the Subtropical North Atlantic: Stoichiometry and Nutrient Limitation Across a Basin‐Scale Transect

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract The subtropical North Atlantic is a key region for ocean carbon cycling despite its relatively small spatial extent. Here we present a high‐resolution transect (23°–27°N; ∼2° longitude spacing) across the North Atlantic Subtropical Gyre, integrating physical, chemical, and microbial observations to examine how hydrography and nutrient ...
Lukas Marx, Edward Mawji, Thierry Cariou, B. B. Cael, Michelle Hale, Sarah Reynolds   +5 more
wiley   +1 more source

Land–Ocean Pathways Linking Indo‐Pacific Sea Surface Temperature Variability to Tropical Atlantic Coastal Salinity

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract This study aims to identify and understand the drivers of interannual variability in coastal salinity in the tropical Atlantic Ocean. Using a combination of satellite, in situ and reanalysis data, we show how ocean‐basin‐scale sea surface temperature gradients in the tropical Pacific and Indian Oceans associated with major climate modes such ...
Sreelekha Jarugula, Severine Fournier, John Reager, Madeleine Pascolini‐Campbell   +3 more
wiley   +1 more source

Method for Automatic Path Planning of Underwater Vehicles Considering Ambient Noise Fields

Journal of Marine Science and Engineering
To tackle the problem of existing underwater vehicle covert path planning methods ignoring ambient noise fields, an automated path planning method based on a statistically characterized environmental noise field is proposed.
Gengming Zhang, Lihua Zhang, Yitao Wang, Chunyu Kang, Yinfei Zhou, Xiaodong Ma, Zeyuan Dai, Shaxige Wu   +7 more
doaj   +1 more source