scholarly journals Gravity as a tool to improve the hydrologic mass budget in karstic areas

2021 ◽  
Vol 25 (11) ◽  
pp. 6001-6021
Author(s):  
Tommaso Pivetta ◽  
Carla Braitenberg ◽  
Franci Gabrovšek ◽  
Gerald Gabriel ◽  
Bruno Meurers
Keyword(s):  
Hydrodynamic Model ◽  
Water Mass ◽  
Water Storage ◽  
Drainage System ◽  
Mass Budget ◽  
Cave System ◽  
Super Conducting ◽  
Water Volumes ◽  
Large Water

Abstract. Monitoring the water movements in karstic areas is a fundamental but challenging task due to the complexity of the drainage system and the difficulty in deploying a network of observations. Gravimetry offers a valid complement to classical hydrologic measurements in order to characterize such systems in which the recharge process causes temporarily accumulation of large water volumes in the voids of the epi-phreatic system. We show an innovative integration of gravimetric and hydrologic observations that constrains a hydrodynamic model of the Škocjan cave system (Slovenia). We demonstrate how the inclusion of gravity observations improves water mass budget estimates for the Škocjan area based on hydrological observations only. Finally, the detectability of water storage variations in other karstic contexts is discussed with respect to the noise performances of spring and super-conducting gravimeters.

scholarly journals Gravity as a tool to improve the hydrologic mass budget in karstic areas

2021 ◽  
Author(s):  
Tommaso Pivetta ◽  
Carla Braitenberg ◽  
Franci Gabrovšek ◽  
Gerald Gabriel ◽  
Bruno Meurers
Keyword(s):  
Hydrodynamic Model ◽  
Water Mass ◽  
Water Storage ◽  
Drainage System ◽  
Mass Budget ◽  
Cave System ◽  
Super Conducting ◽  
Water Volumes ◽  
Large Water

Abstract. Monitoring the water movements in karstic areas is a fundamental but challenging task due to the complexity of the drainage system and the difficulty in deploying a network of observations. Gravimetry offers a valid complement to classical hydrologic measurements in order to characterize such systems in which the recharge process causes temporarily accumulation of large water volumes in the voids of the epi-phreatic system. We show an innovative integration of gravimetric and hydrologic observations that constrains a hydrodynamic model of the Škocjan cave system (Slovenia). We demonstrate how the inclusion of gravity observations improves water mass budget estimates for the Škocjan area based on hydrological observations only. Finally, the detectability of water storage variations in other karstic contexts is discussed with respect to the noise performances of spring and super-conducting gravimeters.

scholarly journals Study of water storage variations at the Pantanal wetlands area from GRACE monthly mass grids

2019 ◽  
Vol 9 (1) ◽  
pp. 133-143
Author(s):  
Ayelen Pereira ◽  
Cecilia Cornero ◽  
Ana C. O. C. Matos ◽  
M. Cristina Pacino ◽  
Denizar Blitzkow
Keyword(s):  
Water Mass ◽  
Spatial Scales ◽  
Water Storage ◽  
Transport Processes ◽  
Satellite Gravity ◽  
The North ◽  
Paraguay River ◽  
Gravity Recovery ◽  
Grace Mission ◽  
Phase Differences

Abstract The continental water storage is significantly in-fluenced by wetlands, which are highly affected by climate change and anthropogenic influences. The Pantanal, located in the Paraguay river basin, is one of the world’s largest and most important wetlands because of the environmental biodiversity that represents. The satellite gravity mission GRACE (Gravity Recovery And Climate Experiment) provided until 2017 time-variable Earth’s gravity field models that reflected the variations due to mass transport processes-like continental water storage changes-which allowed to study environments such as wetlands, at large spatial scales. The water storage variations for the period 2002-2016, by using monthly land water mass grids of Total Water Storage (TWS) derived from GRACE solutions, were evaluated in the Pantanal area. The capability of the GRACE mission for monitoring this particular environment is analyzed, and the comparison of the water mass changes with rainfall and hydrometric heights data at different stations distributed over the Pantanal region was carried out. Additionally, the correlation between the TWS and river gauge measurements, and the phase differences for these variables, were also evaluated. Results show two distinct zones: high correlations and low phase shifts at the north, and smaller correlation values and consequently significant phase differences towards the south. This situation is mainly related to the hydrogeological domains of the area.

scholarly journals Total land water storage change over 2003–2013 estimated from a global mass budget approach

2015 ◽  
Vol 10 (12) ◽  
pp. 124010 ◽  
Author(s):  
H B Dieng ◽  
N Champollion ◽  
A Cazenave ◽  
Y Wada ◽  
E Schrama ◽  
...  
Keyword(s):  
Water Storage ◽  
Mass Budget ◽  
Storage Change ◽  
Land Water

A Novel Drainage System Using Cellular Automata to Avoid Urban Flood

2018 ◽  
Vol 9 (2) ◽  
pp. 38-51
Author(s):  
Neeraj Kumar ◽  
Alka Agrawal ◽  
Raees Ahmad Khan
Keyword(s):  
Cellular Automata ◽  
Smart City ◽  
Water Storage ◽  
Drainage System ◽  
Urban Flood ◽  
Long Duration ◽  
Storage Methods ◽  
The Impact ◽  
Removal System

Floods are problems which become disasters if they persist for a long duration. Out of all kind of floods, a rainfall-induced flood is just a problem created by a lack of water storage methods, which can be eliminated if a better removal system is available. For flood avoidance, many methods have been used, out of which a dedicated drainage pipeline structure may facilitate better removal. This article shows the theory of cellular automata with its new application for flood avoidance using ground leveling. This article analyzes the performance of hexagonal shapes compared with a popular rectangle grid. The article also shows the impact of various layers on the size of the tank. This article provides knowledge towards the flood avoidance for a flood free smart city.

Water Storage Bucket Chain Convey-Cleaning Machine for Cleaning Up Coal Mine Water Storage

2012 ◽  
Vol 164 ◽  
pp. 497-500
Author(s):  
Yu Jing Jia ◽  
Da Yu Zhang ◽  
Guang Zhen Cheng ◽  
Ying Jun Dai
Keyword(s):  
Control System ◽  
Water Content ◽  
Coal Mine ◽  
Water Storage ◽  
Vacuum Suction ◽  
Electrical Control ◽  
Mechanical Structure ◽  
Cleaning Machine ◽  
Coal Slime ◽  
Large Water

This Paper introduced a water storage bucket chain conveyor cleaning machine used in coal mine to clean up the underground water storage, which was mainly made up of the mechanical structure and electrical control system. The mechanical structure consists of walking flatbed, walking drives, chain bucket conveyor. Here focuses on the special structure, the working principle, the work process, the electrical control system, the working condition, the main features and the purpose of the chain bucket convey-cleaning machine. The machine structure was reasonable, the stress was even, the vibration was small, the movement was steady. It can not only adapted to a large water content of coal slime, but also adapted to dry coal slime. It overcomes the low efficiency of spiral roller clearance dealing with the large water content of the slime and the weakness when vacuum suction-type pneumatic conveyor is to clean the dry slime.

Influence of extreme drawdown on water quality downstream of a large water storage reservoir

2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
D. S. Baldwin ◽  
J. Wilson ◽  
H. Gigney ◽  
A. Boulding
Keyword(s):  
Water Quality ◽  
Water Storage ◽  
Storage Reservoir ◽  
Large Water

Drivers of water quality in a large water storage reservoir during a period of extreme drawdown

2008 ◽  
Vol 42 (19) ◽  
pp. 4711-4724 ◽  
Author(s):  
Darren S. Baldwin ◽  
Helen Gigney ◽  
Jessica S. Wilson ◽  
Garth Watson ◽  
Amy N. Boulding
Keyword(s):  
Water Quality ◽  
Water Storage ◽  
Storage Reservoir ◽  
Large Water

scholarly journals Simulation studies of storm water drainage in Wrocław

2018 ◽  
Vol 44 ◽  
pp. 00129
Author(s):  
Monika Nowakowska
Keyword(s):  
Hydrodynamic Model ◽  
Drainage System ◽  
Storm Water ◽  
Simulation Studies ◽  
Water Drainage ◽  
Residential Areas ◽  
Residential Communities ◽  
Flood Volume ◽  
Maximum Water ◽  
Water Impoundment

In the paper were made the verification of the operation of a rainwater drainage system in the residential communities of Gaj and Tarnogaj in Wrocław, carried out in the hydrodynamic model using SWMM software. There were used two criterial precipitation: Euler’s model (with a frequency of C = 3 years) and the actual precipitation (C = 5 years). The criteria of overloading the system was the specific flood volume (SFV). For both cases of precipitation load of catchment, the simulated calculations showed the occurrence of outflows from the channels. Due to the value of SFV indicator (respectively: 19 m3/ha and 42,9 m3/ha), it was found that the tested system needs modernization, therefor acceptable instantaneous water level above the maximum water impoundment were more often than 1 per 3 years, which leads to overflows from channels for residential areas more often than allowed once every 20 years.

Sign in / Sign up

Export Citation Format

Share Document