scholarly journals Groundwater level and electrical conductivity datasets acquired within pumping tests on Ilovik Island in Croatia

Data in Brief ◽  
2021 ◽  
pp. 107180
Author(s):  
Josip TERZIĆ ◽  
Marina FILIPOVIĆ ◽  
Ivana BOLJAT ◽  
Ana SELAK ◽  
Jasmina LUKAČ REBERSKI
Keyword(s):  
Electrical Conductivity ◽  
Groundwater Level ◽  
Pumping Tests

scholarly journals STUDY OF THE PROGRESS OF SEAWATER INTRUSION WITHIN A PLAIN AREA OF RHODOPE PREFECTURE

2004 ◽  
Vol 36 (4) ◽  
pp. 2057 ◽  
Author(s):  
Φ. Πλιάκας ◽  
I. Διαμαντής ◽  
A. Καλλιώρας ◽  
Χ. Πεταλάς
Keyword(s):  
Electrical Conductivity ◽  
Grain Size ◽  
Seawater Intrusion ◽  
Groundwater Level ◽  
Specific Electrical Conductivity ◽  
Chemical Analyses ◽  
Conductivity Measurements ◽  
Groundwater Level Fluctuations ◽  
Plain Area ◽  
Groundwater Samples

This paper investigates the progress of seawater intrusion within the plain area of Xylagani - Imeros, in SW part of Rhodope Prefecture, as well as the suitability of groundwater for several purposes, after qualitative valuation of groundwater samples from selective wells of the study area. The conclusions also include some managerial suggestions for the confrontation of seawater intrusion. The investigation in question took place between 1994-1997 and 2002-2003, and involves the installation of piezometric wells, geoelectric sounding measurements, grain size analyses, monitoring of the groundwater level fluctuations in selective wells, specific electrical conductivity measurements and chemical analyses of water samples from selective wells of the study area.

Analysis of Precipitation Effects Using Groundwater Level and Electrical Conductivity Fluctuations

2021 ◽  
Vol 30 (7) ◽  
pp. 519-527
Author(s):  
Won Gi Jo ◽  
Dong-hwan Kang ◽  
Kyoung-deok Park ◽  
Moon-su Kim ◽  
In-Kyu Shin
Keyword(s):  
Electrical Conductivity ◽  
Groundwater Level

scholarly journals Correlation between tides of northern Adriatic sea and hydrodynamics of the karstic aquifer in the Pozzo dei Protei di Monfalcone (Classical Karst)

2020 ◽  
Vol 49 (1) ◽  
Author(s):  
Rino Semerraro ◽  
Federico Valentinuz ◽  
Maurizio Tavagnutti
Keyword(s):  
Electrical Conductivity ◽  
Groundwater Level ◽  
Adriatic Sea ◽  
Salt Water ◽  
Karst Aquifer ◽  
Chloride Ion ◽  
Northern Adriatic Sea ◽  
Northern Adriatic ◽  
The North ◽  
Mineralized Water

The Pozzo dei Protei di Monfalcone (northeast Italy) is a cavity developed in Cretaceous limestones (Cenomanian-Turonian) situated near the contact of the north-western zone of the Classical Karst with the Lower Plain of the Isonzo/Soča River. At the bottom of the cave is the groundwater at an average altitude of 1.89 m a.s.l. In consideration of the proximity of the cave with the Adriatic Sea, the possible effects of the tides on the karst aquifer were investigated monitoring groundwater level, electrical conductivity (EC, K25) and water temperature using a CTD diver. Groundwater level daily oscillations show a lag of 4–4.5 hours compared to tides. The electrical conductivity variations that can be correlated to tides are 2–5 μS/cm. Excluding that the cave, given the altimetry, is directly affected by the saltwater wedge, the cyclical variations of the EC would derive from the dispersion at the salt water and fresh water interface and from the mobilization of more mineralized water coming from the rock mass. The hypothesis of mixing fresh and salt water and saline fossil waters in the caves of the area has been verified by a general increase in the chloride ion in this area of the karst aquifer compared to the internal areas of Classical Karst.

scholarly journals Application of sustainability indicators, soil organic matter and electrical conductivity, to resource management in the northern grains region

2003 ◽  
Vol 43 (3) ◽  
pp. 253 ◽  
Author(s):  
R. C. Dalal ◽  
R. Eberhard ◽  
T. Grantham ◽  
D. G. Mayer
Keyword(s):  
Electrical Conductivity ◽  
Organic Matter ◽  
Resource Management ◽  
Soil Organic Matter ◽  
Groundwater Level ◽  
Sustainability Indicators ◽  
Groundwater Salinity ◽  
Long Term Monitoring ◽  
Term Monitoring

Sustainability is a multifaceted concept. It is expressed here as 'to ensure that the past and current management and use of natural resources does not diminish their capacity to meet economic, environmental, social and aesthetic needs and opportunities of the present and future generations'. Sustainability indicators can be used to monitor responses in condition and trend as a result of natural resource management. We report here 2 case studies that demonstrate the significance of sustainability indicators in discerning trends in land and water resources in the southern Brigalow (Acacia harpophylla) Belt, a major region of the Queensland Murray–Darling Basin. First, soil organic matter was used as a sustainability indicator of soil productivity, soil aggregation, and its association with soil sodicity since these soil attributes affect infiltration rates, runoff and drainage. The second study involved comparing the trends in stream salinity (electrical conductivity) over 35 years and sustainability indicators for a dominant Vertosol in a region used for cereal cropping. Groundwater level and electrical conductivity of a long-term monitoring bore in the Dalby–Chinchilla region, were also analysed to discern trends in salinity and association of the groundwater with soil and stream salinity. Soil organic matter declined exponentially as the cultivation period for cereal cropping increased. This resulted in a reduction in soil nitrogen supply, and lower grain protein and cereal grain yields. The associated effects were reduced soil aggregation and increased soil sodicity. Electrical conductivity of the soil as well as stream water showed weak but declining trends with time. Groundwater level from the long-term monitoring bore near the stream and groundwater salinity showed significantly declining trends over the 35 years sampling period. Groundwater salinity was similar to the Vertosol electrical conductivity at 240–300 cm depths, suggesting groundwater connectivity to the overlaying soil. Thus, use of sustainability indicators provided a strong association among the various attributes of the landscape. However, it is still a challenge to integrate the various sustainability indicators in a landscape context, integrated over space (spatial and geographical distribution), attributes (quality characteristics) and time (trend).

scholarly journals Response Analysis of Multi-Layered Volcanic Aquifers in Jeju Island to the 2011 M9.0 Tohoku-Oki Earthquake

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 942
Author(s):  
Byeongho Won ◽  
Se-Yeong Hamm ◽  
Kue-Young Kim ◽  
Kyoochul Ha ◽  
Jehyun Shin ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Groundwater Level ◽  
Coastal Aquifers ◽  
Seismic Waves ◽  
Anthropogenic Impacts ◽  
Response Analysis ◽  
Coastal Monitoring ◽  
Groundwater Temperature ◽  
Fresh Groundwater ◽  
Monitoring Wells

Seismic waves caused by earthquakes can lead to the movement of fresh groundwater and saltwater in coastal aquifers. The groundwater level, temperature, and electrical conductivity in coastal monitoring wells on the volcanic island of Jeju all responded to the 2011 M 9.0 Tohoku-Oki earthquake. As a result of the earthquake, groundwater temperature and electrical conductivity patterns demonstrated freshwater outflow and saltwater inflow through the monitoring wells in multi-layered coastal aquifers. The seismicity also affected the behavior of ocean tides occurring at depth along the multi-layered coastal aquifers. These observations prove that the use of multi-depth systems for monitoring groundwater level, temperature, and electrical conductivity are more effective than single monitoring systems for understanding the exact behavior of multi-layered aquifers as well as efficiently detecting earthquake-induced or anthropogenic impacts on aquifers in coastal, karstic, or volcanic areas.

Removing Substrate Background in TEM Microanalysis

1974 ◽  
Vol 32 ◽  
pp. 568-569
Author(s):  
John C. Russ ◽  
Nicholas C. Barbi
Keyword(s):  
Electrical Conductivity ◽  
Rapid Growth ◽  
Organic Film ◽  
Absolute Concentration ◽  
Background Signal ◽  
X Ray ◽  
Elemental Concentrations ◽  
Transmission Electron ◽  
Electron Microscopes ◽  
The Continuum

The rapid growth of interest in attaching energy-dispersive x-ray analysis systems to transmission electron microscopes has centered largely on microanalysis of biological specimens. These are frequently either embedded in plastic or supported by an organic film, which is of great importance as regards stability under the beam since it provides thermal and electrical conductivity from the specimen to the grid.Unfortunately, the supporting medium also produces continuum x-radiation or Bremsstrahlung, which is added to the x-ray spectrum from the sample. It is not difficult to separate the characteristic peaks from the elements in the specimen from the total continuum background, but sometimes it is also necessary to separate the continuum due to the sample from that due to the support. For instance, it is possible to compute relative elemental concentrations in the sample, without standards, based on the relative net characteristic elemental intensities without regard to background; but to calculate absolute concentration, it is necessary to use the background signal itself as a measure of the total excited specimen mass.

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