Results 71 to 80 of about 116,641 (323)
Journal of Quaternary Science, EarlyView.ABSTRACT Desertification in North Africa has progressed rapidly over the past 6000 years. The occupation of Egypt by the Achaemenid Persians and Romans occurred even in hyperarid climates. Understanding the process of environmental changes on a regional scale may improve knowledge of how people developed technologies and adapted to the natural ...
Makiko Watanabe, Hiroyuki Kamei
wiley +1 more source
Continued weakening of the equatorial Pacific upwelling annual cycle in CMIP5 future projections
Scientific Reports, 2022 This study explores the dynamics of the equatorial Pacific upwelling annual cycle under global warming using the Coupled Model Intercomparison Project Phase 5 (CMIP5) simulations.
Li-Chiao Wang, Thi Lan Dao, Jia-Yuh Yu
doaj +1 more source
Strong enhancement of chlorophyll a concentration by a weak typhoon
, 2010 Recent studies demonstrate that chlorophyll a (chl a) concentrations in the surface ocean can be significantly enhanced due to typhoons. The present study investigated chl a concentrations in the middle of the South China Sea (SCS) from 1997-2007.
Fu, Yun-Fei +4 more
core +1 more source
Limnology and Oceanography, EarlyView.Abstract The effect of mesoscale features on the distribution of planktonic organisms are well documented. Yet, the interaction between these spatial features and the temporal scale, which can result in sudden increases of the planktonic biomass, is less known and not described at high resolution.
Thelma Panaïotis +8 more
wiley +1 more source
Limnology and Oceanography, EarlyView.Abstract Harmful algal blooms caused by toxin‐producing species of the diatom genus Pseudo‐nitzschia have been linked to anomalously warm ocean conditions in the Northern California Current System. This study compares summertime concentrations of Pseudo‐nitzschia spp.
Alexis D. Fischer +7 more
wiley +1 more source
The reduction of plankton biomass induced by mesoscale stirring: a modeling study in the Benguela upwelling [PDF]
, 2013 Recent studies, both based on remote sensed data and coupled models, showed a reduction of biological productivity due to vigorous horizontal stirring in upwelling areas. In order to better understand this phenomenon, we consider a system of oceanic flow
Garçon, Veronique +4 more
core +4 more sources
Limnology and Oceanography, EarlyView.Abstract An autonomous Zooglider navigated across the California Current Front into low salinity, minty waters characteristic of the California Current proper in both summers of 2019 and 2021. Diving to 400 m depth, Zooglider transited another near‐surface frontal gradient somewhat inshore. These frontal gradients were generally associated with changes
Sven Gastauer, Mark D. Ohman
wiley +1 more source
Diversity, 2020 The input of new nutrients by upwelling in shelf waters, and the associated carbon and nitrogen fluxes, can be traced by their stable isotope signatures in organic matter.
Antonio Bode +2 more
doaj +1 more source
Silicon isotopes as a tracer for silicate utilization in the Peruvian upwelling [PDF]
, 2011 EGU2011-6081 Natural stable isotopes are a powerful tool in marine sciences to investigate biological processes, such as present and past nutrient utilization.
Ehlert, Claudia +3 more
core
Surface mixing and biological activity in the four Eastern Boundary Upwelling Systems [PDF]
, 2009 Eastern Boundary Upwelling Systems (EBUS) are characterized by a high productivity of plankton associated with large commercial fisheries, thus playing key biological and socio-economical roles.
Garcon, V. +5 more
core +6 more sources