Results 21 to 30 of about 5,030,159 (295)
Water quality in tropical rivers is changing rapidly. The ongoing boom of dam construction for hydropower is one of the drivers for this change. In particular, the stratification in tropical reservoirs induces oxygen deficits in their deep waters and ...
Elisa Calamita +3 more
doaj +1 more source
Coupling remote sensing and particle tracking to estimate trajectories in large water bodies
Propelled by the rapid development of equipment, technology and computational power, the monitoring and simulation of the hydrodynamics in lakes have steadily advanced.
Chaojie Li +4 more
doaj +1 more source
Accounting for surface waves improves gas flux estimation at high wind speed in a large lake [PDF]
The gas transfer velocity (k) is a major source of uncertainty when assessing the magnitude of lake gas exchange with the atmosphere. For the diversity of existing empirical and process-based k models, the transfer velocity increases with the level of ...
P. Perolo +6 more
doaj +1 more source
In Lake Tanganyika, blooms of nitrogen-fixing (diazotrophic) cyanobacteria emerge, when the upper water column re-stratifies after a period of upwelling and convective mixing.
Benedikt Ehrenfels +19 more
doaj +1 more source
Lake mixing regime selects apparent methane oxidation kinetics of the methanotroph assemblage [PDF]
In lakes, large amounts of methane are produced in anoxic sediments. Methane-oxidizing bacteria effectively convert this potent greenhouse gas into biomass and carbon dioxide.
M. J. Mayr +7 more
doaj +1 more source
Freezing, melting, evaporation and condensation of water are essential ingredients for climate and eventually life on Earth. In the present work, we show how surface freezing of supercooled water in an open container is conditioned and triggered-exclusively-by humidity in air. Additionally, a change of phase is demonstrated to be triggered on the water
Pérez-Díaz, J. L. +2 more
openaire +2 more sources
Contamination of surface waters by mining wastes in the Milluni Valley (Cordillera Real, Bolivia): Mineralogical and hydrological influences [PDF]
This study is one of very few dealing with mining waste contamination in high altitude, tropical-latitude areas exploited during the last century. Geochemical, mineralogical and hydrological characterizations of potentially harmful elements (PHEs) in ...
Salvarredy-Aranguren, Matias Miguel +4 more
core +1 more source
Billions of tons of hazardous mine waste are stored in thousands of tailings storage facilities around the world. These impoundments represent one of the most important environmental risk factors of industrial mining, since occasional tailings spills or ...
Désirée Ruppen +4 more
doaj +1 more source
Estimation of deep infiltration in unsaturated limestone environments using cave lidar and drip count data [PDF]
Limestone aeolianites constitute karstic aquifers covering much of the western and southern Australian coastal fringe. They are a key groundwater resource for a range of industries such as winery and tourism, and provide important ecosystem services such
K. Mahmud +5 more
doaj +1 more source
The Water-surface “Halo.” [PDF]
THE “Halo.” which a happy memory of eighty years enables the Rev. O. Fisher to recall in NATURE of February 6 was probably one to which the explanation offered by Dr. Franklin Parsons does not apply.
openaire +1 more source

