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Publications (10 of 271) Show all publications
Baby, S. N., Arrowsmith, C. & Al-Ansari, N. (2019). Application of GIS for Mapping Rainwater-Harvesting Potential: Case Study Wollert, Victoria: Application of GIS for Mapping Rainwater-Harvesting Potential: Case Study Wollert, Victoria. Engineering, 11(1), 14-21
Open this publication in new window or tab >>Application of GIS for Mapping Rainwater-Harvesting Potential: Case Study Wollert, Victoria: Application of GIS for Mapping Rainwater-Harvesting Potential: Case Study Wollert, Victoria
2019 (English)In: Engineering, ISSN 1947-3931, E-ISSN 1947-394X, Vol. 11, no 1, p. 14-21Article in journal (Refereed) Published
Abstract [en]

Water is a basic normal asset for supporting the condition of life. Accessible water assets are feeling the squeeze because of expanding demand. Soon wa- ter,  which  we  have  epended  upon  to  be  accessible  and  an  unconditional present of nature will turn into a rare roduct. Protection and conservation of water assets are desperately required. In many parts of Victoria, water supply to communities is limited. Rainwater harvesting systems can provide water ator near the point of demand. The systems can be owner and utility operated and  managed.  Rainwater  collected  using  existing  structures,  i.e.  rooftops, parking lots, playgrounds, parks, ponds, floodplains etc., has few negative en- vironmental impacts compared to other technologies for water resources de- velopment. Rainwater is relatively clean and the quality is usually acceptablefor many purposes with little or even no treatment. The physical and chemi- cal properties of rainwater are usually superior to sources of groundwater that may have been subjected to contamination. The present study was intended to measure the rooftop rainwater harvesting potential using GIS techniques. The GIS examination utilized in this investigation was basically an efficient assess- ment  of  rooftop  water  collecting  in  the  chose  Wollert  which  is  a  suburb  in Melbourne, Victoria. With the use of GIS it was conceivable to appraise the ag- gregate sum of water harvestable at the household level. It is very tedious work to assess the catchments available for rooftop rainwater harvesting. Here the roof surfaces are the catchments and GIS is employed to calculate the area of various  types  of  roofs  and  their  potential  for  planning  for  the  area  under study.  As  a  result  Eucalypt  Estate  Wollert  has  huge  potential  and  can  makeabove 179.11 litres water available per person per day throughout the year.

Place, publisher, year, edition, pages
Scientific Research Publishing, 2019
Keywords
Rainwater Harvesting, Potential, Measurement, Rooftop, GIS
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-72612 (URN)10.4236/eng.2019.111002 (DOI)
Available from: 2019-01-18 Created: 2019-01-18 Last updated: 2019-02-01Bibliographically approved
Elias, Z., Sissakian, V. K. & Al-Ansari, N. (2019). Assessment of the Tectonic Activity in Northwestern part of the Zagros Mountains, Northeastern Iraq by using Geomorphic Indices. Geotechnical and Geological Engineering
Open this publication in new window or tab >>Assessment of the Tectonic Activity in Northwestern part of the Zagros Mountains, Northeastern Iraq by using Geomorphic Indices
2019 (English)In: Geotechnical and Geological Engineering, ISSN 0960-3182, E-ISSN 1573-1529Article in journal (Refereed) Epub ahead of print
Abstract [en]

The Tectonic Activity of regions with active tectonics can be assessed by using of the geomorphic indices. Six Geomorphic indices including stream-gradient index (SL), drainage basin asymmetry (Af), drainage basin shape (Bs), hypsometric integral (Hi), valley floor width-valley height ratio (Vf), and mountain-front sinuosity (Smf) were calculated using GIS technique in Kifri Chai Basin; northeast Iraq, which belongs to the Western Zagros Mountain. The basin was divided into eighteen sub-basins depending on the 4th, 5th and 6th stream orders of the drainage within Kirfi Basin. It was found that the SL, Af, Bs, Hi, Vf, and Smf (J) values are uniform and exhibit almost the same classes. However, few exceptions occur, especially in Bs values, but the exceptional values do not influence significantly on the acquired results, in each of the eighteen sub-basin. From these indices the relative active tectonics index value (Iat) was determined. The results of average Iat values (2.35) showed that the tectonic activity in the whole basin is Moderate. Moreover, an attempt was carried out to compare the regional Neotectonic activity with the relative tectonic activity in the basin. The results showed that there is a positive relation between the two comparatives; especially the subsidence amount and scored relative tectonic activity.

Place, publisher, year, edition, pages
Springer Publishing Company, 2019
Keywords
Geomorphic indices, Tectonic activity, Neotectonic, Western Zagros, Iraq
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-73401 (URN)10.1007/s10706-019-00888-z (DOI)
Available from: 2019-04-03 Created: 2019-04-03 Last updated: 2019-06-11
Adamo, N., Al-Ansari, N., Sissakian, V., Laue, J. & Knutsson, S. (2019). Badush Dam: A Unique Case of Flood WaveRetention Dams Uncertain Future and Problematic Geology. Engineering, 11(4), 189-205
Open this publication in new window or tab >>Badush Dam: A Unique Case of Flood WaveRetention Dams Uncertain Future and Problematic Geology
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2019 (English)In: Engineering, ISSN 1947-3931, E-ISSN 1947-394X, Vol. 11, no 4, p. 189-205Article in journal (Refereed) Published
Abstract [en]

Badush Dam is a partially completed dam and a unique case of flood reten- tion dams. Its intended main function is to perform flood protection once in its lifetime; that is if Mosul Dam would collapse. In such a case, the Badush dam would temporarily store the whole flood wave and route it safely to the downstream. For this end, the bulk of the reservoir is left dry, while the re- maining  volume  at  the  lower  part  which  is  intended  for  power  eneration does  not  give  an  economic  justification  for  building  the  full  height  of  the dam. The short duration of the intended use as a protection dam has led to relaxing many design assumptions which have raised concerns over the dam integrity.  The  current  controversy  rages  now  over  whether  to  continue  the construction of the dam as it was first designed or to change all that in view of the similar site geology of Mosul Dam. Mosul dam foundations suffer at the moment from the severe continuous dissolution of the soluble materials in its foundation  leading  to  continued  maintenance  grouting  of  that  foundation. This paper gives an overview of the history of Badush dam, its current design and what new equirements which are needed if it is to replace Mosul Damitself.

Place, publisher, year, edition, pages
USA: Scientific Research Publishing, 2019
Keywords
Badush Dam, Mosul Dam, Flood Retention Dam Dry Dam, Foundation
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-73608 (URN)10.4236/eng.2019.114014 (DOI)
Available from: 2019-04-12 Created: 2019-04-12 Last updated: 2019-04-15Bibliographically approved
Hashim, B. M., Sultan, M. A., Attyia, M. N., Al Maliki, A. A. & Al-Ansari, N. (2019). Change Detection and Impact of Climate Changes toIraqi Southern Marshes Using Landsat 2 MSS,Landsat 8 OLI and Sentinel 2 MSI Data andGIS Applications. Applied Sciences, 9(10)
Open this publication in new window or tab >>Change Detection and Impact of Climate Changes toIraqi Southern Marshes Using Landsat 2 MSS,Landsat 8 OLI and Sentinel 2 MSI Data andGIS Applications
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2019 (English)In: Applied Sciences, ISSN 2076-3417, Vol. 9, no 10Article in journal (Refereed) Published
Abstract [en]

Marshes represent a unique ecosystem covering a large area of southern Iraq. In a major environmental disaster, the marshes of Iraq were drained, especially during the 1990s. Since then, droughts and the decrease in water imports from the Tigris and Euphrates rivers from Turkey and Iran have prevented them from regaining their former extent. The aim of this research is to extract the values of the normalized dierence vegetation index (NDVI) for the period 1977–2017 from Landsat 2 MSS (multispectral scanner), Landsat 8 OLI (operational land imager) and Sentinel 2 MSI (multi-spectral imaging mission) satellite images and use supervised classification to quantify land and water cover change. The results from the two satellites (Landsat 2 and Landsat 8) are compared with Sentinel 2 to determine the best tool for detecting changes in land and water cover. We also assess the potential impacts of climate change through the study of the annual average maximum temperature and recipitation in dierent areas in the marshes for the period 1981–2016. The NDVI analysis and image classification showed the degradation of vegetation and water bodies in the marshes, as vast areas of natural vegetation and agricultural lands disappeared and were replaced with barren areas. The marshes were influenced by climatic change, including rising emperature and the diminishing amount of precipitation during 1981–2016.

Place, publisher, year, edition, pages
Switzerland: MDPI, 2019
Keywords
Iraqi marshes, climate change, satellites data
National Category
Engineering and Technology
Research subject
Water Resources Engineering
Identifiers
urn:nbn:se:ltu:diva-73970 (URN)10.3390/app9102016 (DOI)
Note

Validerad;Nivå 2;2019-05-29 (oliekm)

Available from: 2019-05-16 Created: 2019-05-16 Last updated: 2019-05-29Bibliographically approved
Al-Mamoori, S. K., Al-Maliki, L. A. J., El-Tawel, K., Hussain, H. M., Al-Ansari, N. & Al Ali, M. J. (2019). Chloride, Calcium Carbonate and Total Soluble Salts Contents Distribution for An-Najaf and Al-Kufa Cities’ Soil by Using GIS. Geotechnical and Geological Engineering, 37(3), 2207-2225
Open this publication in new window or tab >>Chloride, Calcium Carbonate and Total Soluble Salts Contents Distribution for An-Najaf and Al-Kufa Cities’ Soil by Using GIS
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2019 (English)In: Geotechnical and Geological Engineering, ISSN 0960-3182, E-ISSN 1573-1529, Vol. 37, no 3, p. 2207-2225Article in journal (Refereed) Published
Abstract [en]

The main objective of the paper is to create geotechnical maps for three soil chemical properties in An-Najaf and Kufa cities’ soil by utilizing of GIS tools. This properties are the chloride concentration, calcium carbonate (CaCO 3) and total soluble salts where they affect the durability of reinforced structural elements. This paper provides an easy accurate way to represent soil properties levels for different depths of soil and create reliable database that will help engineers and decision makers. The data included in this paper were collected for (464) boreholes with depths up to 35 m distributed on residential areas in all of An-Najaf and Kufa cities. Arc-Map of GIS 10.2.1 was used to produce the maps. It has been concluded that chloride content in the soil of the study area range from - 0.01 to 0.99% and with an average of 0.5. The maximum value found in at depth 4–6 m while the minimum value found in location at depth 4–6, 8–10 and 14–16 m. The chloride content in most of An-Najaf province has exceeded the permissible limit and for all, this required taking percussions to protect foundations. While calcium carbonate content in the soil of the study area range from 53 to 0.18 and with an average of 26.6. The maximum and the minimum values found at depth 4–6 m. Calcium carbonate content is within the permissible limits in most locations except in some locations.

Place, publisher, year, edition, pages
Springer, 2019
Keywords
Chloride content, GIS, Calcium carbonate (CaCO3), Total soluble salts (TSS), An-Najaf and Kufa cities, Geotechnical maps, Reinforced concrete
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-71827 (URN)10.1007/s10706-018-0754-x (DOI)000465591800076 ()2-s2.0-85057590413 (Scopus ID)
Note

Validerad;2019;Nivå 2;2019-06-10 (oliekm)

Available from: 2018-11-30 Created: 2018-11-30 Last updated: 2019-06-10Bibliographically approved
Tayebiyan, A., Mohammad, T. A., Al-Ansari, N. & Malakootian, M. (2019). Comparison of Optimal Hedging Policies forHydropower Reservoir System Operation. Water, 11(1), Article ID 121.
Open this publication in new window or tab >>Comparison of Optimal Hedging Policies forHydropower Reservoir System Operation
2019 (English)In: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 11, no 1, article id 121Article in journal (Refereed) Published
Abstract [en]

Reservoiroperation rules play an important role in regions economic development.Meanwhile, hedging policies are mostly applied for municipal, industrial, andirrigation water supplies from reservoirs and it is less used for reservoiroperation for hydropower generation. The concept of hedging and rationingfactors can be used to maintain the water in a reservoir for the sake ofincreasing water storage and water head for future use. However, water storageand head are the key factors in operation of reservoir systems for hydropowergeneration. This study investigates the applicability of seven competinghedging policies including four customary forms of hedging (1PHP, 2PHP, 3PHP,DHP) and three new forms of hedging rules (SOPHP, BSOPHP, SHPHP) for reservoiroperation for hydropower generation. The models were constructed in MATLABR2011b based on the characteristics of the Batang Padang hydropower reservoirsystem, Malaysia. In order to maximize the output of power generation inoperational periods (2003–2009), threeoptimization algorithms namely particle swarm optimization (PSO), geneticalgorithm (GA), and hybrid PSO-GA were linked to one of the constructed model(1PHP as a test) to find the most effective algorithm. Since the results demonstrated the superiority of the hybrid PSO-GA algorithm compared to either PSO or GA, the hybrid PSO-GA were linkedto each constructed model in order to find the optimal decision variables of eachmodel. The proposed methodology was validated using monthly data from 2010–2012.The results showed that there are no significant difference between the output of monthly meanpower generation during 2003–2009 and 2010–2012.The results declared that by applying the proposedpolicies, the output of power generation could increase by 13% with respect tothe historical management. Moreover, the discrepancies between mean powergenerations from highest to lowest months were reduced from 49 MW to 26 MW,which is almost half. This means that hedging policies could efficientlydistribute the water-supply and power-supply in the operational period andincrease the stability of the system. Among the studied hedging policies, SHPHPis the most convenient policy for hydropower reservoir operation and gave thebest result.

Place, publisher, year, edition, pages
Switzerland: MDPI, 2019
Keywords
hedging policies; hydropower; reservoir system; operation; optimization; hybrid PSO-GA
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-72515 (URN)10.3390/w11010121 (DOI)000459735100119 ()2-s2.0-85059860442 (Scopus ID)
Note

Validerad;2019;Nivå 2;2019-01-25 (svasva)

Available from: 2019-01-10 Created: 2019-01-10 Last updated: 2019-04-12Bibliographically approved
Ewaid, S. H., Abed, S. A. & Al-Ansari, N. (2019). Crop Water Requirements and Irrigation Schedules for Some Major Crops in Southern Iraq. Water, 11(4), Article ID 756.
Open this publication in new window or tab >>Crop Water Requirements and Irrigation Schedules for Some Major Crops in Southern Iraq
2019 (English)In: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 11, no 4, article id 756Article in journal (Refereed) Published
Abstract [en]

The climate of Iraq is of the subtropical semi-dry type; however, the country was rich in water resources until a few decades ago. Climate change and the construction of many dams on the Tigris and Euphrates rivers in the neighboring countries have caused water shortages and poor water quality. Now, there is a need to decrease consumption, improve management of water resources, and determine the water requirements of the major crops because agriculture is the first consumer of water in Iraq. The Food and Agriculture Organization (FAO) CROPWAT 8.0 simulation software and the CLIMWAT 2.0 tool attached to it have been used in this research for Dhi-Qar Province in southern Iraq to find the crop water requirements (CWRs) and irrigation schedules for some major crops. The CROPWAT Penman–Monteith method was used to calculate the reference crop evapotranspiration (ET0) and the United States Department of Agriculture (USDA) soil conservation (S.C.) method was used to estimate the effective rainfall. The study results showed that ET0 varied from 2.18 to 10.5 mm/day and the effective rainfall varied from 0.0 to 23.1 mm. The irrigation requirements were 1142, 203.2, 844.8, and 1180 mm/dec for wheat, barley, white corn, and tomatoes, respectively. There is a higher water demand for crops during the dry seasons (summer and autumn) and a lower demand during the wet seasons (winter and spring). The total gross irrigation and the total net irrigation were 343.8 mm and 240.7 mm for wheat, 175.2 mm and 122.6 mm for barley, 343.8 mm and 240.7 mm for white corn, and 203.3 mm and 142.3 mm for tomatoes. This study proved that the CROPWAT model is useful for calculating the crop irrigation needs for the proper management of water resources.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
Iraq, CROPWAT, irrigation schedules, crop water requirement
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-73597 (URN)10.3390/w11040756 (DOI)2-s2.0-85064983171 (Scopus ID)
Note

Validerad;2019;Nivå 2;2019-04-15 (svasva)

Available from: 2019-04-11 Created: 2019-04-11 Last updated: 2019-06-24Bibliographically approved
Sissakian, V., Elias, Z. & Al-Ansari, N. (2019). Deducing the Lateral Growth of Anticlines using Drainage Analysisand Geomorphological Features. Geotectonics, 53(1), 140-154
Open this publication in new window or tab >>Deducing the Lateral Growth of Anticlines using Drainage Analysisand Geomorphological Features
2019 (English)In: Geotectonics, ISSN 0016-8521, E-ISSN 1556-1976, Vol. 53, no 1, p. 140-154Article in journal (Refereed) Published
Abstract [en]

— one in Iraq is an active tectonic area witnessing different evidences for Neotec-ur, Pulkhana, and Qumar anticlines which aretonic actipart of anticlinal series in the Low Folded Zone and Zagros Fold–Thrust Belt. The exposed rocks are of Mid- dle Miocene – Pleistocene age overlain unconformably by different types of Quaternary sediments which show different indications for lateral growth. Three anticlines are dissected by tens of different size valleys crossing the anticlines forming water gaps and wind gaps which are good indication for the anticlines lateral growth. We studied the lateral growth of three anticlines using different means of qualitative analysis of satel- lite imagery and digital topography and ArcGIS technique. The anticlines lateral growth was mainly mani- fested by the drainage system and patterns which exhibited strange courses during dissecting the three studied anticlines. Moreover, the main streams deposited alluvial fans during Early Pleistocene and even Early Holo- cene which were also inf luenced by both lateral and vertical anticlines growth. Their abnormal shapes, aban- doned fans and streams were among indica morphological indices which indicated tectonic activity of the study area.

Place, publisher, year, edition, pages
Springer, 2019
Keywords
neotectonic activity, geomorphological features, Quaternary sediments, lateral growth, anticlines
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-73045 (URN)10.1134/S0016852119010072 (DOI)000467082300008 ()2-s2.0-85065393515 (Scopus ID)
Note

Validerad;2019;Nivå 2;2019-06-10 (oliekm)

Available from: 2019-02-27 Created: 2019-02-27 Last updated: 2019-06-25Bibliographically approved
Tao, H., Ebtehaj, I., Bonakdari, H., Heddam, S., Voyant, C., Al-Ansari, N., . . . Yaseen, Z. (2019). Designing a New Data Intelligence Model for Global Solar Radiation Prediction: Application of Multivariate Modeling Scheme. Energies, 12(7), Article ID 1365.
Open this publication in new window or tab >>Designing a New Data Intelligence Model for Global Solar Radiation Prediction: Application of Multivariate Modeling Scheme
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2019 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, no 7, article id 1365Article in journal (Refereed) Published
Abstract [en]

Global solar radiation prediction is highly desirable for multiple energy applications, such

as energy production and sustainability, solar energy systems management, and lighting tasks for home use and recreational purposes. This research work designs a new approach and investigates the capability of novel data intelligent models based on the self-adaptive evolutionary extreme learning machine (SaE-ELM) algorithm to predict daily solar radiation in the Burkina Faso region. Four different meteorological stations are tested in the modeling process: Boromo, Dori, Gaoua and Po, located in West Africa. Various climate variables ssociated with the changes in solar radiation are utilized as the exploratory predictor variables through different input combinations used in the intelligent model (maximum and minimum air temperatures and humidity, wind speed, evaporation and vapor pressure deficits). The input combinations are then constructed based on the magnitude of the Pearson correlation coefficient computed between the predictors and the predictand, as a baseline method to determine the similarity between the predictors and the target variable. The results of the four tested meteorological stations show consistent findings, where the

incorporation of all climate variables seemed to generate data intelligent models that erforms with best prediction accuracy. A closer examination showed that the tested sites, Boromo, Dori, Gaoua and Po, attained the best performance result in the testing phase, with a root mean square error and a mean absolute error (RMSE-MAE [MJ/m 2]) equating to about (0.72-0.54), (2.57-1.99), (0.88-0.65) and (1.17-0.86), respectively. In general, the proposed data intelligent models provide an excellent modeling strategy for solar radiation prediction, particularly over the Burkina Faso region in Western Africa. This study offers implications for solar energy exploration and energy management in data sparse regions.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
energy harvesting, solar radiation simulation, SaE-ELM model, multivariate modeling
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-73542 (URN)10.3390/en12071365 (DOI)000467564700192 ()
Note

Validerad;2019;Nivå 2;2019-04-15 (oliekm)

Available from: 2019-04-10 Created: 2019-04-10 Last updated: 2019-06-18Bibliographically approved
Bobaker, A. M., Alakili, I., Sarmani, S. B., Al-Ansari, N. & Yaseen, Z. (2019). Determination and Assessment of the Toxic Heavy Metal Elements Abstracted from the Traditional Plant Cosmetics and Medical Remedies: Case Study of Libya. International Journal of Environmental Research and Public Health, 16(11), 1-14, Article ID 1957.
Open this publication in new window or tab >>Determination and Assessment of the Toxic Heavy Metal Elements Abstracted from the Traditional Plant Cosmetics and Medical Remedies: Case Study of Libya
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2019 (English)In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 16, no 11, p. 1-14, article id 1957Article in journal (Refereed) Published
Abstract [en]

Henna and walnut tree bark are widely used by Libyan women as cosmetics. They may contain lead (Pb), cadmium (Cd) and arsenic (As), which, in turn, pose a high risk to their health. This study aims to determine the levels of Pb, Cd and As in henna and walnut tree bark products sold in Libyan markets. The products were analyzed for their Pb, Cd and As content by using inductively coupled plasma mass spectrometry (ICP-MS) after a microwave acid digestion. The results showed a significant difference between the henna and walnut tree bark samples in terms of their heavy metals content (p < 0.05). The highest heavy metal concentrations were observed in the walnut tree bark samples whereas the lowest was observed in the henna samples. In addition, 60% of the henna and 90% of the walnut tree bark samples contained Pb levels and approximately 80% of the henna and 90% the walnut tree bark samples contained Cd levels, which are much higher than the tolerance limit. However, As concentrations in all the samples were lower. The results indicated that such cosmetics expose consumers to high levels of Pb and Cd and hence, to potential health risks. Thus, studying the sources and effects of heavy metals in such cosmetics is strongly recommended.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
traditional plant cosmetics, toxic heavy metals, henna, walnut tree bark, ICP-MS, Libya
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
urn:nbn:se:ltu:diva-74130 (URN)10.3390/ijerph16111957 (DOI)31159472 (PubMedID)
Note

Validerad;2019;Nivå 2;2019-06-10 (oliekm)

Available from: 2019-06-02 Created: 2019-06-02 Last updated: 2019-06-10Bibliographically approved
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