Fecal bacteria in the rivers of the Seine drainage network (France): Sources, fate and modelling

2007 ◽  
Vol 375 (1-3) ◽  
pp. 152-167 ◽  
Author(s):  
Pierre Servais ◽  
Tamara Garcia-Armisen ◽  
Isabelle George ◽  
Gilles Billen
Keyword(s):  
Drainage Network ◽  
Fecal Bacteria

IRRIGATION BY GROUNDWATER AT THE EXPERIMENTAL AREA IN THE KUVINSKY DISTRICT OF THE FERGANA REGION

2020 ◽  
Vol 6 (2) ◽  
pp. 43-49
Author(s):  
Zulfiya Mirkhasilova ◽  
◽  
Murat Yakubov ◽  
Khurshida Yakubova
Keyword(s):  
Drainage Network ◽  
Experimental Plot ◽  
Rational Use ◽  
Experimental Area ◽  
Vertical Drainage ◽  
Drainage Wells

The article talks about the rational use of water pumped out of vertical drainage wells. The solution to the problem is determined by irrigation with water from vertical drainage wells, without dumping them into the collector-drainage network. An example of irrigation is given on the experimental plot of the Kuva region, the farm "Musazhon Ismoilov".

Interaction between water pressure in the basal drainage system and discharge from an Alpine glacier before and during a rainfall-induced subglacial hydrological event

1997 ◽  
Vol 24 ◽  
pp. 288-292 ◽  
Author(s):  
Andrew P. Barrett ◽  
David N. Collins
Keyword(s):  
Water Level ◽  
Water Pressure ◽  
Drainage System ◽  
Water Levels ◽  
Drainage Network ◽  
Alpine Glacier ◽  
Hydraulic Conditions ◽  
Borehole Water ◽  
Progressive Growth ◽  
Resultant Increase

Combined measurements of meltwater discharge from the portal and of water level in a borehole drilled to the bed of Findelengletscher, Switzerland, were obtained during the later part of the 1993 ablation season. A severe storm, lasting from 22 through 24 September, produced at least 130 mm of precipitation over the glacier, largely as rain. The combined hydrological records indicate periods during which the basal drainage system became constricted and water storage in the glacier increased, as well as phases of channel growth. During the storm, water pressure generally increased as water backed up in the drainage network. Abrupt, temporary falls in borehole water level were accompanied by pulses in portal discharge. On 24 September, whilst borehole water level continued to rise, water started to escape under pressure with a resultant increase in discharge. As the drainage network expanded, a large amount of debris was flushed from a wide area of the bed. Progressive growth in channel capacity as discharge increased enabled stored water to drain and borehole water level to fall rapidly. Possible relationships between observed borehole water levels and water pressures in subglacial channels are influenced by hydraulic conditions at the base of the hole, distance between the hole and a channel, and the nature of the substrate.

EVIDENCES OF DRAINAGE NETWORK REORGANIZATION IN RESPONSE TO ACTIVE TECTONICS IN THE BETICS CORDILLERA, SPAIN

2016 ◽  
Author(s):  
Claudio Berti ◽  
◽  
Yang Gao ◽  
James H. Carrigan ◽  
David Anastasio
Keyword(s):  
Active Tectonics ◽  
Drainage Network

scholarly journals Mapping the Pollution Plume Using the Self-Potential Geophysical Method: Case of Oum Azza Landfill, Rabat, Morocco

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 961
Author(s):  
Meryem Touzani ◽  
Ismail Mohsine ◽  
Jamila Ouardi ◽  
Ilias Kacimi ◽  
Moad Morarech ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Water Table ◽  
Soil Surface ◽  
The Self ◽  
Drainage Network ◽  
Geophysical Method ◽  
Direct Measurements ◽  
Sandy Material ◽  
The City ◽  
Self Potential

The main landfill in the city of Rabat (Morocco) is based on sandy material containing the shallow Mio-Pliocene aquifer. The presence of a pollution plume is likely, but its extent is not known. Measurements of spontaneous potential (SP) from the soil surface were cross-referenced with direct measurements of the water table and leachates (pH, redox potential, electrical conductivity) according to the available accesses, as well as with an analysis of the landscape and the water table flows. With a few precautions during data acquisition on this resistive terrain, the results made it possible to separate the electrokinetic (~30%) and electrochemical (~70%) components responsible for the range of potentials observed (70 mV). The plume is detected in the hydrogeological downstream of the discharge, but is captured by the natural drainage network and does not extend further under the hills.

A vector-based method for drainage network analysis based on LiDAR data

2021 ◽  
pp. 104892
Author(s):  
Fangzheng Lyu ◽  
Zewei Xu ◽  
Xinlin Ma ◽  
Shaohua Wang ◽  
Zhiyu Li ◽  
...  
Keyword(s):  
Network Analysis ◽  
Lidar Data ◽  
Drainage Network
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