Monitoring zero water level in a drought-affected headwater stream network

2021 ◽  
Author(s):  
Amelie Herzog ◽  
Kerstin Stahl ◽  
Markus Weiler ◽  
Veit Blauhut
Keyword(s):  
Water Level ◽  
Monitoring Network ◽  
Water Levels ◽  
Added Value ◽  
Low Flow ◽  
Main Stream ◽  
Stream Network ◽  
Drying Up ◽  
Set Up ◽  
Level Monitoring

<p>Even largely perennial rivers can fall dry during drought events. A resulting partial or full drying-up of streambeds is difficult to monitor with conventional gauging stations, but important as it heavily impacts water availability, quality and aquatic ecosystems. With a predicted tendency towards more extreme droughts, event-based intermittency is likely to increase requiring a better longitudinal quantification of water level and streamflow conditions. The Dreisam River in the south-west of Germany is a stream with a highly dynamic hydrology. In the recent extreme drought years of 2015, 2018 and 2019 the main stream and tributaries partly fell dry; whereas the main gauging station still recorded flow. Furthermore, several tributaries fell dry in 2016, 2017 and 2019.To improve the understanding of the interaction between streamflow, groundwater and water usages in low flow and zero-flow situations, a flexible longitudinal water quality and quantity monitoring network was developed. Different techniques such as QR-code-reading camera systems and ultrasound devices to log water levels as well as water temperature and electrical conductivity sensors were used. The set-up was additionally equipped with conventional capacitive water level loggers. Here, we present a comparison of the different water level monitoring techniques in order to a) evaluate the advantages and limits of the novel techniques and b) investigate any added value of longitudinal, catchment wide zero level monitoring. The results show that the choice of the measurement sites' environment, including shading of QR-codes, light reflections of the water surface and streambed topography, is crucial for a successful application of the used techniques. The distributed gauges reveal a highly variable longitudinal drying pattern within the river network that appears to be event-specific and may not be explained without consideration of all natural and altered system fluxes.</p>

AUTOMATIC WATER LEVEL MONITORING WITH IOT AND LPWAN

2019 ◽  
pp. 95-103
Author(s):  
Krum Videnov ◽  
Vanya Stoykova
Keyword(s):  
Water Level ◽  
Real Time ◽  
Early Warning ◽  
Water Sources ◽  
Water Levels ◽  
Water Level Fluctuations ◽  
Level Monitoring ◽  
Water Level Monitoring

Monitoring water levels of lakes, streams, rivers and other water basins is of essential importance and is a popular measurement for a number of different industries and organisations. Remote water level monitoring helps to provide an early warning feature by sending advance alerts when the water level is increased (reaches a certain threshold). The purpose of this report is to present an affordable solution for measuring water levels in water sources using IoT and LPWAN. The assembled system enables recording of water level fluctuations in real time and storing the collected data on a remote database through LoRaWAN for further processing and analysis.

Smart Water Level Monitoring System for Farmers

2019 ◽  
pp. 213-228
Author(s):  
Nalina Suresh ◽  
Valerianus Hashiyana ◽  
Victor Panduleni Kulula ◽  
Shreekanth Thotappa
Keyword(s):  
Water Level ◽  
Monitoring System ◽  
Cost Effective ◽  
Weather Conditions ◽  
Water Levels ◽  
Measurement Systems ◽  
Smart Water ◽  
Level Measurement ◽  
Level Monitoring ◽  
Water Level Monitoring

With advancement in technology and ever-changing weather conditions, accurate and affordable water level measurement systems has become necessary for farmers. This therefore brings about the need for a system incorporating the use of IoT technology that will monitor water levels at a cost-effective price with accurate and dependable results. The prototype will monitor water levels on a regular basis and the data captured will be stored in a database to help farmers improve the way they manage their water resource. Farmers will be able to monitor the water levels from any location at any given time. This chapter focuses on a Smart Water Level Monitoring System for Farmers and provides a smart way to manage water resources on farms in the most cost-effective and convenient manner for farmers.

scholarly journals Ground effects and hydrological changes in the Southern Apennines (Italy) in response to the 23 July 1930 earthquake (<i>M<sub>S</sub></i>=6.7)

2009 ◽  
Vol 9 (2) ◽  
pp. 539-550 ◽  
Author(s):  
E. Esposito ◽  
R. Pece ◽  
S. Porfido ◽  
G. Tranfaglia
Keyword(s):  
Monitoring Network ◽  
Water Levels ◽  
Great Earthquake ◽  
Southern Apennines ◽  
Stream Flows ◽  
Loma Prieta Earthquake ◽  
Hydrological Changes ◽  
Water Wells ◽  
Porosity And Permeability ◽  
Set Up

Abstract. The 23 July 1930 earthquake (MS=6.7) in the Southern Apennines (Italy) was a catastrophic event that produced many effects such as surface faulting, fractures, landslides, settlements, hydrological changes, variations in chemical/physical activity related to the volcanic and/or thermal zones and also acoustic and optical phenomena. It is the first great earthquake of the twentieth century that was studied, thanks to the hydrological monitoring network of the Italian Hydrographic Survey (IHS) set up from 1925 to 1929. For this earthquake we analysed the initial IHS hydrometric and pluviometric data, looking for significant anomalies in springs, water wells and mountain streams. Hydrological data relative to rivers, springs and water wells indicate that some changes can be correlated with the earthquake: a post-seismic excess discharge in some streams, pre- and co-seismic decreases in stream flows and water levels in wells, pre- and post-seismic increases in discharges. The pre- and co-seismic stresses and the tectonic deformations were studied in order to find a possible model of interaction between stress state and hydrological variations. The anomalies found in this work can be considered "rebound anomalies", which are the most common precursor reported by many authors and related to increases in porosity and permeability caused by the fracturing that precedes an earthquake. An estimation of the total excess discharge (0.035 km3) caused by the MS=6.7 Irpinia earthquake is consistent with the excess discharge of about 0.01 km3 determined for the Mw=6.9 Loma Prieta earthquake.

Smart Water Control with Internet of Things and Cloud Computing

2020 ◽  
Vol 17 (4) ◽  
pp. 1696-1702
Author(s):  
A. Shiny ◽  
Arpan Sarkar ◽  
Sanchay Mishra ◽  
Sarthak Pandita ◽  
Aritra Paul
Keyword(s):  
Water Level ◽  
Large Scale ◽  
Water Levels ◽  
Sensor Data ◽  
Water Control ◽  
Smart Water ◽  
Current Scenario ◽  
Water Tanks ◽  
And Control ◽  
Level Monitoring

In this paper, we bring about the idea of water level monitoring and controlling with IOT and Mobile applications. The vast amount of water wasted in the current scenario, mostly due to overflowing tanks is not acceptable. Existing water tanks control systems can monitor and control the water level in tank, which leads to reduction in amount of wastage of ample water but the type of sensors which are used in such a system does not specify exact changes in water level leading to unstable control parameters. Other technologies had some drawbacks based on speed of detection and approximation of sensor data. The need of improvement of these short-comings and providing an accurate and ethinic solution has been the main aim of this project. The project has been further improvised by using electronic water level sensors which uses potentiometric techniques to measure water level in water tanks, along with ultrasonic sensors for better metrics and control. Further up, this project can be implemented on large scale to control and detect rising water levels in dams and reservoirs to avoid flash floods and excess pressure in dams. The proposed system will help to identify the smallest changes in water level in case of rainfall measurement as well.

scholarly journals The Influence of Hydrometeorological Conditions on Changes in Littoral and Riparian Vegetation of a Meromictic Lake in the Last Half-Century

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2651 ◽  
Author(s):  
Bogumił Nowak ◽  
Agnieszka E. Lawniczak-Malińska
Keyword(s):  
Water Level ◽  
Riparian Vegetation ◽  
Field Studies ◽  
Meteorological Conditions ◽  
Water Levels ◽  
Meromictic Lake ◽  
Low Flow ◽  
Coastal Zones ◽  
Half Century ◽  
Hydrometeorological Conditions

Changes in water levels in lakes play an important role in the development of their coastal zones and water trophy. The aim of this study was to assess the role of changes in hydrometeorological conditions in the development of littoral and riparian vegetation of a meromictic lake during the last half-century. The study was carried out in Lake Powidzkie, one of the largest water reservoirs located in central Poland. Water level and meteorological conditions were analyzed in the period 1961–2015. Modifications in the range of plant communities were analyzed on the basis of cartographic materials and field studies. Meteorological conditions, especially precipitation and evaporation, were found to strongly affect the lake's water retention, whilst they had less of an effect on water levels. A significant effect of the lowering of the water level in Lake Powidzkie on the development of the littoral zone, whose area more than doubled over the last half-century, from 41.5 to 118.8 ha, was noted. The most dynamic development of the littoral was observed in the last quarter of the century, in which three of several years of low-flow were recorded. The occurrence of periods with an increased amount of precipitation, after dry periods, did not contribute to the reduction of the size of the rush zone and limitation of the development of woody vegetation.

scholarly journals WATER SCARCITY OR DROUGHT? THE CAUSE AND SOLUTION FOR THE LACK OF WATER IN LAGUNA DE ACULEO

2020 ◽  
Vol 4 (1) ◽  
pp. 42-50
Author(s):  
Héctor L. Venegas-Quiñones ◽  
Mark Thomasson ◽  
Pablo A. Garcia-Chevesich
Keyword(s):  
Global Warming ◽  
Water Level ◽  
Water Levels ◽  
Anthropogenic Factors ◽  
Statistical Parameters ◽  
Lake Water Level ◽  
Drying Up ◽  
Water Withdrawals ◽  
The Impact ◽  
Precipitation And Temperature

One of the most recurring discussions among people is the real impact of global warming and human activity on our natural resources. It is hard to identify and quantify the impact generated by each one. Laguna de Aculeo located in Paine city, Chile. It was one of the most attractive and beautiful places to visit in the summer. Today, It has been completely drying up. This research evaluates weather and hydrologic values registered by government weather and water levels stations. The purpose is to evaluate if there has been a change in precipitation, temperature, and water level trend. The analysis consists of the evaluation of the statistical parameters, and legal water withdrawals and fines imposed. The results of this study indicate that the cause of the drought of the lake is generated by climatic and anthropogenic factors. However, the changes in precipitation and temperature over the years are not significant for drying a lake. Therefore, it is possible to assume that human activities are arguably the greatest cause of impact on Laguna de Aculeo. Finally, we present tools, strategies, and practical solutions to prevent, control, and restore lake water level.

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