Results 81 to 90 of about 1,071 (166)

Riverine Biogeochemical Exports From Major Watersheds to the Northwest Patagonian Estuarine Network

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 8, August 2026.
Abstract River discharge considerably influences marine ecosystems through hydrological and biogeochemical drivers. Measuring baseline variability of riverine inputs, and their relation to anthropogenic land‐use impacts and global climate stressors affecting watersheds is therefore crucial for managing coastal marine ecosystems.
Sage Fox, Jorge León‐Muñoz, Brian Reid, Anna Astorga‐Roine, Rodrigo Aguayo, Paulo Moreno‐Meynard, Lydia Blanchet, David E. Butman   +7 more
wiley   +1 more source

The ASTE‐BGC Data‐Assimilative Regional Ocean Biogeochemical Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract We present a data‐assimilative regional ocean biogeochemical model, ASTE‐BGC, which simulates the physical and biogeochemical state of the North Atlantic Ocean from 2002 to 2017. Model physics are provided by a physical state estimate (ASTE), which assimilates O(109) in situ and satellite‐based observations over the model domain and time ...
L. A. Moseley, G. A. McKinley, D. Carroll, D. Menemenlis, R. Dussin, A. T. Nguyen   +5 more
wiley   +1 more source

Hydrographie [PDF]

Nature, 1935
openaire   +2 more sources

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

Subglacial Lake Discharge Affects the Age and Concentration Distribution of Dissolved Organic Carbon in Ross Sea Surface Waters

AGU Advances, Volume 7, Issue 5, August 2026.
Abstract The Ross Sea continental shelf plays a key role in the global carbon cycle. However, the sources and cycling of dissolved organic carbon (DOC) in the region are poorly understood. Here, we determined the radiocarbon (14C) and stable carbon isotope (13C) contents of DOC in addition to those of dissolved inorganic carbon (DIC) in the Little ...
Sunmin Oh, Yeongjin Ryu, Heejun Han, Taehee Na, Tae‐Wan Kim, Jisoo Park, Guebuem Kim, Ellen R. M. Druffel, Jeomshik Hwang   +8 more
wiley   +1 more source

Widespread Landslide Activity in an Extreme Wet Season and Implications for Regional Sediment Management, Eastern San Francisco Bay Area, California

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Watershed sediment production is expected to increase in a warmer future with more extreme rain, with cascading effects throughout drainage and sediment‐transport networks. This study investigated landscape‐scale sediment movement in the eastern San Francisco Bay area, California, USA, during the extreme 2016–2017 wet season that brought major
Amy E. East, Amy C. Foxgrover, Skye C. Corbett, Brian D. Collins, Andrew C. Ritchie   +4 more
wiley   +1 more source

Transient Ecological Niches for Diazotrophs in Upwelling Bays

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Diazotrophs, microorganisms capable of fertilizing the ocean through biological nitrogen fixation (BNF), are widespread in the oceans, including upwelling bays. However, their ability to respond to short‐lived upwelling pulses, lasting only a few days, remains poorly understood. To investigate diazotrophy across temporal scales, we analyzed 18 
D. Fernández‐Román, M. Fontela, E. Broullón, H. Farnelid, A. Fernández‐Carrera, B. Fernández Castro, R. A. Foster, S. Martínez‐García, E. Nogueira, B. Reguera, T. Rodríguez‐Ramos, M. M. Varela, E. Velasco‐Senovilla, B. Mouriño‐Carballido   +13 more
wiley   +1 more source

Glacial Imprints and Marine Overprints: Sediment Architecture and Fjord Evolution in Fiordland, New Zealand

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Fjords are globally significant sedimentary archives that record the relationship between glacial, tectonic, and marine processes. Fiordland, on the southwest coast of New Zealand, hosts one of the most extensive temperate fjord provinces in the Southern Hemisphere, yet its postglacial evolution has remained poorly constrained.
Ellen Unland, Andrew R. Gorman, Philip M. Barnes, Christopher M. Moy, Gary S. Wilson, Christina R. Riesselman, Jess I. T. Hillman   +6 more
wiley   +1 more source

Intensified Oxygen Minimum Zone in Response to Both Insolation Maxima and Carbon Dioxide‐Driven Warmth in the Tropical North Atlantic

Paleoceanography and Paleoclimatology, Volume 41, Issue 8, August 2026.
Abstract Oxygen (O2) is essential for almost all life on Earth, but O2 concentrations are rapidly declining in the oceans under global warming, stressing marine ecosystems and biogeochemical cycles. Numerical model simulations suggest greatly expanded North Atlantic Oxygen Minimum Zones (OMZs) under warm Pliocene conditions, but sparse data limit ...
F. Fayolle, A. J. Crocker, A. Whitehead, C. V. Davis, A. Brombacher, A. Auderset, C. Xuan, P. A. Wilson   +7 more
wiley   +1 more source

Water Basin Delimitation in a Relief Transition Region

Floresta e Ambiente
The objective of this work was to evaluate the performance accuracy of digital elevation models in delimiting a water basin located in the relief transition region between the São Francisco Plateau, São Franciscana Depression and the Espinhaço mountain ...
Kevin Ficher, Donizete Pereira, André Almeida, Josiane Oliveira   +3 more
doaj   +1 more source