Browsing by Author "Mohd Ekhwan Toriman"

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    An Assessment of Coastal Vulnerability of Pahang's Coast Due to Sea Level Rise
    (Science Publishing Corporation, 2018) Fazly Amri Mohd; Khairul Nizam Abdul Maulud; Othman A. Karim; Rawshan Ara Begum; Md Firoz Khan; Wan Shafrina Wan Mohd Jaafar; Sharifah Mastura Syed Abdullah; Mohd Ekhwan Toriman; Mohd Khairul Amri Kamarudin; Muhammad Barzani Gasim; Noorjima Abd Wahab
    Climate change interacts in a different way with varieties of human activities and other drivers of change along coastlines. Sea level rise (SLR) is one of the major impacts of global warming. Changes in climate extremes and SLR may impact the critical infrastructures such as coastal road, jetty and chalets as well as the local community. The population and assets exposed to coastal risks will increase significantly due to population growth, economic development and urbanization in the future. As most of the cities in Malaysia are situated near the coast, immediate actions are needed to minimize the undesired outcome due to the SLR.The main objective of this study is to identify physical variables that may have impacts on the coastal area, thus develop a coastal vulnerability index (CVI) for the East Coast of Peninsular Malaysia. Seven (7) physical variables have been identified to assess the CVI that consists of geomorphology, coastal slope, shoreline change rate, mean significant wave height, mean tidal range, relative sea level rate and land use.
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    Analysis of meander evolution studies on effect from land use and climate change at the upstream reach of the Pahang River, Malaysia
    (Springer, 2015) Mohd Khairul Amri Kamarudin; Mohd Ekhwan Toriman; Mohd Hafiz Rosli; Hafizan Juahir; Nor Azlina Abdul Aziz; Azman Azid; Syahrir Farihan Mohamed Zainuddin; Wan Nor Azmin Sulaiman
    Hydrogeomorphologically, the study of river meandering provides information on the tendency of rivers to reach and form a state of equilibrium. The process of meander changes is important in order to identify the environment-related causes that occur naturally or vice versa. Sedimentation, erosion, flood, and water quality problems usually are being specifically studied, but in a broad view, changes in the platform of the river affect all the problems that occur. This article discusses the effects of the meanders evolution changes from land use and climate change in the upstream of Sungai Pahang in over 61 years from 1932 to 1993.
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    Development of A Comprehensive Model for Erosion and Sediment Control towards Good Water Governance: UKM Campus as A Watershed Model
    (The Journal of Institution of Engineers, Malaysia (IEM Journal), 2021) Rahmah Elfithri; Md Pauzi Abdullah; Ahmad Fuad Embi; Mazlin bin Mokhtar; Mohd Ekhwan Toriman; Muhammad Barzani Gasim; Sahibin Abd Rahim; Maimon Abdullah; Anizan Isahak; Noor Ezlin Ahmad Basri; Normaizura Maizan
    This study was carried out to develop a whole ecosystem-based erosion and sediment transport control management system of UKM Campus Watershed which is a sub-basin of Langat River Basin catchment. This is done through the development of an Erosion and Sediment Control (ESC) model for the UKM campus watershed that includes localised technology, information and communication system, as well as awareness and community participation for the greening and rehabilitation of UKM Campus.
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    Flux of nutrients and heavy metals from the Melai River sub-catchment into Lake Chini, Pekan, Pahang, Malaysia
    (Springer, 2013) Muhd Barzani Gasim; Sahibin Abd. Rahim; Mohd Ekhwan Toriman; Wan Mohd Razi Idris; Tukimat Lihan; Zulfahmi Ali Rahman; Azman Hashim; Norhadilla Hadib
    This study was carried out to determine the flux of nutrients and heavy metals from the Melai sub-catchment into Lake Chini through the process of erosion. Melai River is one of the seven feeder rivers that contributed to the present water level of Lake Chini. Three properties of soils, such as particle size, organic matter content, and soil hydraulic conductivity and three chemical soil properties, such as available nutrients, dissolved nutrients, and heavy metals, were analyzed and interpreted.
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    Kajian Kualitatif Perubahan Guna Tanah Kawasan Bandar Pekanbaru dengan Menggunakan Sistem Maklumat Geografi (Gis)
    (Penerbit UKM, 2010) Yusri; Othman A. Karim; Khairul Nizam Abdul Maulud; Mohd Ekhwan Toriman
    Penggunaan tanah boleh mengakibatkan perubahan fungsi dari masa ke masa, sesuai dengan tujuan pembangunan. Kawasan Bandar Pekanbaru terdiri daripada 12 sub-kawasan persekutuan dengan jumlah keluasan kira-kira 632.26 km2. Tujuan kajian adalah untuk menganalisis perubahan guna tanah daripada aspek ruang dan masa. Data guna tanah yang diambil kira dalam analisis ini adalah peta guna tanah 1992 dan 2004.
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    Kepekatan Beban Bahan Pencemar Di Alur Ilmu Kampus Ukm Bangi: Kaedah Min Kepekatan Peristiwa (Emc)
    (The Malaysian Analytical Sciences Society, 2012) Haslinur Md Din; Mohd Ekhwan Toriman; Mazlin Mokhtar; Rahmah Elfithri; Nor Azlina Ab. Aziz; Nur Munirah Abdullah; Mohd Khairul Amri Kamarudin
    Beban pencemar air dan luahan sungai adalah antara data asas dalam menentukan kedinamikan sesebuah sungai. Input kualiti air dan luahan lazimnya boleh diperoleh melalui pengambilan sampel air dilapangan ataupun dicerap secara automatik menggunakan simpanan kawalan data. Artikel ini membincangkan beban pencemar kualiti air dan hubungannya dengan luahan (m3/s) menggunakan kaedah Min Kepekatan Peristiwa (EMC) di Alur Ilmu UKM yang berpunca dari hutan Diptorakap Simpan Bangi
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    Pengurusan Sumber Air Mapan di Pulau Pangkor
    (Penerbit UKM) Mohd Ekhwan Toriman
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    Prediction of the level of air pollution using principal component analysis and artificial neural network techniques: A case study in Malaysia
    (Springer, 2014) Azman Azid; Hafizan Juahir; Mohd Ekhwan Toriman; Mohd Khairul Amri Kamarudin; Ahmad Shakir Mohd Saudi; Che Noraini Che Hasnam; Nor Azlina Abdul Aziz; Fazureen Azaman; Mohd Talib Latif; Syahrir Farihan Mohamed Zainuddin; Mohamad Romizan Osman; Mohammad Yamin
    This study focused on the pattern recognition of Malaysian air quality based on the data obtained from the Malaysian Department of Environment (DOE). Eight air quality parameters in ten monitoring stations in Malaysia for 7 years (2005-2011) were gathered. Principal component analysis (PCA) in the environmetric approach was used to identify the sources of pollution in the study locations. The combination of PCA and artificial neural networks (ANN) was developed to determine its predictive ability for the air pollutant index (API). The PCA has identified that CH4, NmHC, THC, O3, and PM10 are the most significant parameters.
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    Relationship of rainfall distribution and water level on major flood 2014 in Pahang River basin, Malaysia
    (Thai Society of Higher Education Institutes on Environment, 2017) Nur Hishaam Sulaiman; Mohd Khairul Amri Kamarudin; Mohd Ekhwan Toriman; Hafizan Juahir; Frankie Marcus Ata; Azman Azid; Noor Jima Abd Wahab; Roslan Umar; Saiful Iskandar Khalit; Mokhairi Makhtar; Amal Arfan; Uca Sideng
    Climate change gives impact on extreme hydrological events especially in extreme rainfall. This article discusses about the relationship of rainfall distribution and water level on major flood 2014 in Pahang River Basin, Malaysia in helping decision makers to flood management system. Based on DID Malaysia rainfall station, 56 stations have being use as point in this research and it is including Pahang, Terengganu, Kelantan and Perak. Data set for this study were analysed with GIS analysis using interpolation method to develop Isohyet map and XLstat statistical software for PCA and SPC analyses.
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    Spatial assessment and source identification of heavy metals pollution in surface water using several chemometric techniques
    (Elsevier, 2016) Azimah Ismail; Mohd Ekhwan Toriman; Hafizan Juahir; Sharifuddin Md Zain; Nur Liyana Abdul Habir; Ananthy Retnam; Mohd Khairul Amri Kamaruddin; Roslan Umar; Azman Azid
    This study presents the determination of the spatial variation and source identification of heavy metal pollution in surface water along the Straits of Malacca using several chemometric techniques. Clustering and discrimination of heavy metal compounds insurface water into two groups (northern and southern regions) are observed according to level of concentrations via the application of chemometric techniques.
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    Spatial water quality assessment of Langat River Basin (Malaysia) using environmetric techniques
    (Springer, 2011) Hafizan Juahir; Sharifuddin M. Zain; Mohd Kamil Yusoff; T. I. Tengku Hanidza; A. S. Mohd Armi; Mohd Ekhwan Toriman; Mazlin Mokhtar
    This study investigates the spatial water quality pattern of seven stations located along the main Langat River. Environmetric methods, namely, the hierarchical agglomerative cluster analysis (HACA), the discriminant analysis (DA), the principal component analysis (PCA), and the factor analysis (FA), were used to study the spatial variations of the most significant water quality variables and to determine the origin of pollution sources.