Fifteen percent of the total volume produced is lost, which has become a major problem for water ... more Fifteen percent of the total volume produced is lost, which has become a major problem for water resource management in Algeria. The number of high leakages reduces the performance of the drinking water supply network. The disturbance of the drinking water supply observed by the citizens resulted from several incidents occurring mainly on the axis of production or distribution (e.g., breakage, leakage, pollution, electrical problems, and drought). To manage these incidents and for water distribution monitoring in the high-level strategic plan, monitoring and control software was developed for the Algerian Water Company (ADE). This software is an essential tool that helps managers of water resources to monitor the water supply situation throughout the national territory to ameliorate water public services. This dynamic software has been in use since 2016.
The touristic balneology is an essential source to promote the economy of the region. Our study a... more The touristic balneology is an essential source to promote the economy of the region. Our study aims to identify the geochemistry, the typology and the nature of the thermal waters of Hammam Bouhanifia, a geochemical and bacteriological study was carried out in the region, 13 sources were studied. The geochemical analysis results show a high mineralization of the waters (EC varies between 1.28 and 3.26 mS/cm); high-temperature variation (26 to 65 °C) indicates a high depth emergence. The geochemical classification of waters by the piper diagram shows typical Ca–Mg waters with a dominance of sulphates. All the water points have good bacteriological quality with the exception of source No. 6, which may indicate an infiltration of domestic discharges. The thermal reservoir of Hammam Bouhanifia may represent an important source of geothermal energy in Algeria in addition to its role in the development of thermal tourism in the western region of the country.
Cette étude porte sur l’analyse de la variabilité spatiale et temporelle des indices de précipita... more Cette étude porte sur l’analyse de la variabilité spatiale et temporelle des indices de précipitation, température et débit dans le bassin versant de l’oued Mina (6 048 km2) dans le Nord-Ouest algérien pendant la période de 1979 à 2013. L’application du test non paramétrique de Kruskal-Wallis sur les indices de pluies a révélé que le total annuel des pluies et le nombre maximal de jours consécutifs pluvieux présentent une grande variabilité spatiale. Le nombre de jours de forts débits diminue du nord vers le sud du bassin. Quant au test de Mann-Kendall, il a révélé une tendance décroissante du total annuel des pluies. En revanche, les températures maximales et minimales ont significativement augmenté dans le temps. Il en est de même des séquences des jours secs consécutifs, des intensités des pluies et des jours extrêmement pluvieux. Aussi, la fréquence des jours avec des forts débits a diminué alors que celle avec des faibles débits a augmenté dans les trois oueds de Mina, Haddad e...
The best understanding of the geochemical process of groundwater is important for a sustainable d... more The best understanding of the geochemical process of groundwater is important for a sustainable development and for a strategic management of water resources. A hydro-geochemical study of groundwater of the Djelfa multilayer aquifers systems was established, using stable isotopes, and major elements, in order to identify the groundwater mineralization process occurring in this system. The chemical data indicate that the dissolution of evaporate minerals (Gypsum, halite, anhydrite) and the evaporation from water table are the principle processes who command the groundwater mineralization. Groundwater samples are depleted in stables isotopes (18O and 2H) reflecting a slug of water recharged during colder climatic conditions, and the recharge was occurred at different altitude. The analysis of the replenishment of aquifer levels shows that the level arises in the replenishment of aquifer and decreases in the depletion of aquifer due to the phenomena of evaporation and to the extensive ...
The objectives of this study are to modeling the spatial distribution of Covid-19 at the regional... more The objectives of this study are to modeling the spatial distribution of Covid-19 at the regional scale (Case of Algeria) based on geostatistcal study of covid-19 cases spatial distribution and Hybrid Kriging. The data analysis of a published officially Covid-19 reports by the Algerian Ministry of Health. a map of contamination by covid-19 has been obtained and a new model of risk evaluation has been developed and proposed to predict the propagation of this pandemic in Algeria. To conclude this work show areas with high population density are most exposed to virus propagation and death arising. Simulation show that infection by Covid-19 will arise to 14 000 cases in Algeria in the last of April also the velocity of transmission of this virus is rapid. Map obtained help the local authority to manage Covid-19 infections at the spatial scale.
Fifteen percent of the total volume produced is lost, which has become a major problem for water ... more Fifteen percent of the total volume produced is lost, which has become a major problem for water resource management in Algeria. The number of high leakages reduces the performance of the drinking water supply network. The disturbance of the drinking water supply observed by the citizens resulted from several incidents occurring mainly on the axis of production or distribution (e.g., breakage, leakage, pollution, electrical problems, and drought). To manage these incidents and for water distribution monitoring in the high-level strategic plan, monitoring and control software was developed for the Algerian Water Company (ADE). This software is an essential tool that helps managers of water resources to monitor the water supply situation throughout the national territory to ameliorate water public services. This dynamic software has been in use since 2016.
The touristic balneology is an essential source to promote the economy of the region. Our study a... more The touristic balneology is an essential source to promote the economy of the region. Our study aims to identify the geochemistry, the typology and the nature of the thermal waters of Hammam Bouhanifia, a geochemical and bacteriological study was carried out in the region, 13 sources were studied. The geochemical analysis results show a high mineralization of the waters (EC varies between 1.28 and 3.26 mS/cm); high-temperature variation (26 to 65 °C) indicates a high depth emergence. The geochemical classification of waters by the piper diagram shows typical Ca–Mg waters with a dominance of sulphates. All the water points have good bacteriological quality with the exception of source No. 6, which may indicate an infiltration of domestic discharges. The thermal reservoir of Hammam Bouhanifia may represent an important source of geothermal energy in Algeria in addition to its role in the development of thermal tourism in the western region of the country.
Cette étude porte sur l’analyse de la variabilité spatiale et temporelle des indices de précipita... more Cette étude porte sur l’analyse de la variabilité spatiale et temporelle des indices de précipitation, température et débit dans le bassin versant de l’oued Mina (6 048 km2) dans le Nord-Ouest algérien pendant la période de 1979 à 2013. L’application du test non paramétrique de Kruskal-Wallis sur les indices de pluies a révélé que le total annuel des pluies et le nombre maximal de jours consécutifs pluvieux présentent une grande variabilité spatiale. Le nombre de jours de forts débits diminue du nord vers le sud du bassin. Quant au test de Mann-Kendall, il a révélé une tendance décroissante du total annuel des pluies. En revanche, les températures maximales et minimales ont significativement augmenté dans le temps. Il en est de même des séquences des jours secs consécutifs, des intensités des pluies et des jours extrêmement pluvieux. Aussi, la fréquence des jours avec des forts débits a diminué alors que celle avec des faibles débits a augmenté dans les trois oueds de Mina, Haddad e...
The best understanding of the geochemical process of groundwater is important for a sustainable d... more The best understanding of the geochemical process of groundwater is important for a sustainable development and for a strategic management of water resources. A hydro-geochemical study of groundwater of the Djelfa multilayer aquifers systems was established, using stable isotopes, and major elements, in order to identify the groundwater mineralization process occurring in this system. The chemical data indicate that the dissolution of evaporate minerals (Gypsum, halite, anhydrite) and the evaporation from water table are the principle processes who command the groundwater mineralization. Groundwater samples are depleted in stables isotopes (18O and 2H) reflecting a slug of water recharged during colder climatic conditions, and the recharge was occurred at different altitude. The analysis of the replenishment of aquifer levels shows that the level arises in the replenishment of aquifer and decreases in the depletion of aquifer due to the phenomena of evaporation and to the extensive ...
The objectives of this study are to modeling the spatial distribution of Covid-19 at the regional... more The objectives of this study are to modeling the spatial distribution of Covid-19 at the regional scale (Case of Algeria) based on geostatistcal study of covid-19 cases spatial distribution and Hybrid Kriging. The data analysis of a published officially Covid-19 reports by the Algerian Ministry of Health. a map of contamination by covid-19 has been obtained and a new model of risk evaluation has been developed and proposed to predict the propagation of this pandemic in Algeria. To conclude this work show areas with high population density are most exposed to virus propagation and death arising. Simulation show that infection by Covid-19 will arise to 14 000 cases in Algeria in the last of April also the velocity of transmission of this virus is rapid. Map obtained help the local authority to manage Covid-19 infections at the spatial scale.
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