Climatology

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https://repoemc.ukm.my/handle/123456789/59

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Now showing 1 - 20 of 35

Open Access
A Decade of Literature on Climate in Phytopathological Research: Visualising and Bibliometrics Analysis
(IOP Publishing, 2022) M Muhammad; M A M Zawawi; M F Jusoh; L Naher; N S A Latif; M A Hasli
This research attempts to expand graphical mapping of the bibliographic information using VOSviewer software. The research conducted the performance and network mapping approaches: publication trends, subject area, most active journals and countries, citation metrics, highly cited papers, co-authorship, and co-occurrence of the keywords.
Open Access
A Literature Review of Dual Disaster Challenges for Resilient Office Building Toward Reducing Disaster Risks
(IOP Publishing, 2022) N H Zakaria; S U M Tobi; N Othman
Several mitigation strategies have been taken by the government to reduce the risks of floods in Malaysia. As office buildings possess important roles in delivering effective services to the public while maintaining their critical documents, this paper focuses on providing related literature on building resilience.
Open Access
Analyzing Windstorm Pattern in Malaysia based on Extracted Twitter Data
(IOP Publishing, 2022) N A Isa; S A Salleh; A Chan; N H Zakaria; Z Suif; M Abdul Halim
This study aims to analyze the pattern of recent windstorm events by utilizing big data and GIS. In this study, the reported windstorm events in Twitter application were extracted using R-programming. Prior to analyses, the extracted data were screened to remove any outliers found. The extracted data were selected based on the credibility of its sources to ensure the accuracy and quality. These selected data were extracted from trusted users such as Meteorological Department of Malaysia (MMD), Berita Harian, Bernama and others.
Open Access
Application of Analytical Hierarchy Process (AHP) for Landslide Hazard Analysis (LHA) in Kota Kinabalu Area, Sabah, Malaysia
(IOP Publishing, 2022) Rodeano Roslee; Kamilia Sharir; Goh Thian Lai; Norbert Simon; Lee Khai Ern; Eldawaty Madran; Ahmad Syazwan Saidin
The AHP is defined as theory of measurement through pairwise comparisons and relies on the judgements of experts to derive priority scales that measure intangibles in relative terms. The derived priority scales are synthesised by multiplying them by the priority of their parent nodes and adding for all such nodes. Weighted value of different spatial factors from the best models calculated with the AHP method were derived.
Open Access
Assessment of Flood Susceptibility Analysis Using Analytical Hierarchy Process (AHP) in Kota Belud Area, Sabah,Malaysia
(IOP Publishing, 2022) Kamilia Sharir; Goh Thian Lai; Norbert Simon; Lee Khai Ern; Mustapha Abd Talip; Rodeano Roslee
This study aims to assess the flood susceptibility analysis using a Geographical Information System (GIS) based-heuristic analysis, namely the Analytical Hierarchy Process (AHP) model. Eight relevant physical parameters have been selected, namely, drainage density, drainage proximity, elevation, slope angle, slope curvature, land use, soil type, and topography wetness index. The relative importance of these factors has been compared in the pairwise matrix to gain weight values during the process of the Analytical Hierarchy Process (AHP). The flood susceptibility zones have been mapped according to their weightage value. Finally, the flood susceptibility map was prepared and classified into six classes as very low, low, moderate, high, and very high susceptibility using the natural break classification method.
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Asymmetric boundary shifts of tropical montane Lepidoptera over four decades of climate warming
(Wiley, 2011) I-Ching Chen; Jane K. Hill; Hau-Jie Shiu; Jeremy D. Holloway,Suzan Benedick; Vun Khen Chey; Henry S. Barlow; Chris D. Thomas
To estimate whether species have shifted at equal rates at their leading edges (cool boundaries) and trailing edges (warm boundaries) in response to climate change. We provide the first such evidence for tropical insects, here examining elevation shifts for the upper and lower boundaries shifts of montane moths. Threats to species on tropical mountains are considered.
Open Access
Buffer Zone Prediction for Simulated Earthquake-Induced Slope Failures in Mesilou, Kundasang, Sabah, Malaysia
(IOP Publishing, 2023) H F W S Erfen; B Musta
The research area is located at Mesilou, Kundasang, Sabah at 1400 meters to 2000 meters from the sea level. It focuses on slopes of Pinousuk Gravel Unit, tilloid deposits from the glaciation of Mount Kinabalu during Late Pleistocene age. Four slopes were chosen for the estimation of "buffer zone" of earthquake-induced slope failures. The simulation of the earthquake is conducted by using shaking table method and the earthquake event occurred in the research area on year 2018.
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Climate change in Malaysia: Trends, contributors, impacts, mitigation and adaptations
(Elsevier, 2019) Kuok Ho Daniel Tang
This paper reviews the past and future trends of climate change in Malaysia, the major contributors of greenhouse gases and the impacts of climate change to Malaysia. It also reviews the mitigation and adaptations undertaken, and future strategies to manage the impacts of regional climate change.
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Climate change simulations in terms of solar radiation and cloud fraction based on PRECIS over Malaysia region
(UMS, 2013) Steven S.K. Kong; Justin Sentian
This paper simulated the solar radiation and total cloud fraction for Malaysia by the end of the 21st century based on the A2 and the B2 scenarios by utilizing the latest generation of the Hadley Centre regional climate modeling system, PRECIS (Providing Regional Climates for Impact Studies).
Open Access
Conceptualization of a Collaborative Decision Making for Flood Disaster Management
(IOP Publishing, 2016) Siti Nur Aishah Zubir; Sivadass Thiruchelvam; Kamal Nasharuddin Mustapha; Zakaria Che Muda; Azrul Ghazali; Hazlinda Hakimie; Normy Norfiza Abdul Razak; Abdul Aziz Mat Isa; Hasril Hasini; Khairul Salleh Mohamed Sahari; Norhayati Mat Husin; Mohd Ezanee Rusli; Rahsidi Sabri Muda; Lariyah Mohd Sidek; Hidayah Basri; Izawati Tukiman
Flooding is the utmost major natural hazard in Malaysia in terms of populations affected, frequency, area extent, flood duration and social economic damage. The recent flood devastation towards the end of 2014 witnessed almost 250,000 people being displaced from eight states in Peninsular Malaysia. The affected victims required evacuation within a short period of time to the designated evacuation centres. An effective and efficient flood disaster management would assure non-futile efforts for life-saving. Effective flood disaster management requires collective and cooperative emergency teamwork from various government agencies. Intergovernmental collaborations among government agencies at different levels have become part of flood disaster management due to the need for sharing resources and coordinating efforts. Collaborative decision making during disaster is an integral element in providing prompt and effective response for evacuating the victims.
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Daily temperature effects on under-five mortality in a tropical climate country and the role of local characteristics
(Elsevier, 2023) Vera Ling Hui Phung; Kazutaka Oka; Yasushi Honda; Yasuaki Hijioka; Kayo Ueda; Xerxes Tesoro Seposo; Mazrura Sahani; Wan Rozita Wan Mahiyuddin; Yoonhee Kim
Climate change and its subsequent effects on temperature have raised global public health concerns. Although numerous epidemiological studies have shown the adverse health effects of temperature, the association remains unclear for children aged below five years old and those in tropical climate regions.
Open Access
Designing Early Warning Flood Detection and Monitoring System via IoT
(IOP Publishing, 2020) MI. Hadi; F. Yakub; A. Fakhrurradzi; CX. Hui; A. Najiha; NA. Fakharulrazi; AN. Harun; ZA. Rahim; A. Azizan
Flooding is one of the biggest natural disasters that occurs frequently around the world. It can occur without warning and the after effect of it leaves great damage to the surrounding environment and exposes life threatening to citizen. Therefore, early flood detection and monitoring system with the implementation of Internet of Things and Global Positioning System is proposed in order to reduce the risks that may cause flooding. The aim of this project is to provide the information of a current water level in a drain.
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Discovering meaningful patterns for tropical climate change in Malaysia
(Inderscience Enterprises Ltd, 2018) Ghassan Saleh Al-Dharhani; Zulaiha Ali Othman; Azuraliza Abu Bakar; Sharifah Mastura Syed Abdullah
This paper investigated patterns of climate change in Malaysia and proposed a fuzzy based symbolic data representation known as a shapelet patterns algorithm (SPA). The Shapelet Pattern visualise climate change patterns in the form of coloured shapes to indicate annual changes in temperature patterns. The experiment used climate change data collected from four stations in Malaysia, Petaling-jaya, Subang, KLIA-Sepang and University Malaya, to produce three types of results.
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Dynamic impacts of energy use, agricultural land expansion, and deforestation on CO2 emissions in Malaysia
(Springer, 2022) Asif Raihan; Rawshan Ara Begum; Mohd Nizam; Mohd Said; Joy Jacqueline Pereira
This study empirically investigates the nexus among energy use, agricultural land expansion, deforestation, and carbon dioxide (CO2) emissions in Malaysia. Time series data from 1990 to 2019 were utilized using the bounds testing (ARDL) approach followed by the Dynamic Ordinary Least Squares (DOLS) method. The DOLS estimate findings show that the energy usage coefficient is positive and significant with CO2 emissions, indicating a 1% increase in energy consumption is related to a 0.91% rise in CO2 emissions.
Open Access
Earthquake Threats in Ranau-From The Sources of Mensaban and Mesilou Fault
(IOP Publishing, 2022) Ahmad Khairut Termizi; Felix Tongkul; Noor Sheena Herayani Harith; Rodeano Roslee
This article explains the process for doing a probabilistic seismic hazard analysis (PSHA) while taking into consideration the peak ground acceleration (PGA) on bedrock in the Ranau region for a 10% and 2% chance of exceedance. The PGA estimate values for Ranau are between 0.08g to 0.16g for PGA 10%, while for PGA 2% was between 0.15g to 0.28g. The PGA value is divided into the following five earthquake hazard classes based on a quarterly geostatistical analysis method. These are ""very low,"" ""low,"" ""medium,"" ""high,"" and ""very high"" classes.
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Extreme heat vulnerability assessment in tropical region: a case study in Malaysia
(Taylor and Francis Ltd., 2022) Nurfatin Izzati Ahmad Kamal; Zulfa Hanan Ash'aari; Ahmad Makmom Abdullah; Faradiella Mohd Kusin; Ferdaus Mohamat Yusuff; Amir Hamzah Sharaai; Farrah Melissa Muharam & Noor Afiza Mohd Ariffin
In this study, the extreme heat vulnerability index (EHVI) has been evaluated to identify the most vulnerable districts to extreme heat events. We evaluated exposure, population sensitivity and adaptive capacity from sociodemographic and remote sensing data.
Open Access
Flash Flood Susceptibility Mapping in Sungai Pinang catchment using Weight of Evidence
(IOP Publishing, 2022) A Saleh; N Sabtu; M R Bunmi
This paper's objective is to develop the flash flood susceptibility mapping (FFSM) using weight of evidence (WOE) in the Sungai Pinang catchment. The Sungai Pinang catchment is located in the highly urbanised areas of Georgetown. The FFSM was developed using six flash flood conditioning factors: elevation, slope, rainfall, land cover, distance from the river, and lithology.
Open Access
Flood Analysis and Non-Structural Approach for Flood Protection in Sg. Kelantan
(IOP Publishing, 2022) Nurul Fatihah Nor Azlan Shah; Nur Wajihah Abd Hakim; Md Noor Salleh; Maisarah Ali; Mohd Fairullazi Ayob; Thayalam Sekaran; Mohd Azmi Ismail; Mohd Zaki Mat Amin
The objectives of this paper were to simulate Flood Hydrographs for Various Storm Duration by using Hydrologic Engineering Centre-Hydrologic Modelling System (HEC-HMS), to investigate the location of floodplain at the catchment area of Sg. Kelantan by using River Analysis System (HEC-RAS), to identify the non-structural approach that can reduce the rate of flood based on its topography.
Open Access
Flood Hazard Risk Matrix for Urbanization Control Area of Flood Plain
(IOP Publishing, 2020) Mohd Fisham Bin Abu Basah; Faizah Che Ros; Samira Albati Kamaruddin; Mohd Shukri Madnor
Identification and understanding the potential flood risk area are important elements in disaster risk reduction through development planning control plan. The development growth in Merlimau area causes demand for new urbanization area for residential, commercial and public infrastructure. Therefore, the risk of flood should evaluate to identify the possible future flood hazard-risk area based on future land use in Merlimau.This paper describes an approach to produce flood hazard and risk matrix and map using a combination of flood numerical modelling and Geographical Information System (GIS) analysis in Merlimau River Basin.
Open Access
Flood Preparedness Module for Malaysian Higher Education Students via Metaverse Environment
(IOP Publishing, 2023) N F Sa don; H S Sa don; R A Alias; H Nakanishi
The objective of this research is twofold: to study flood preparedness among Malaysian higher education students and to propose a flood preparedness module for Malaysian higher education students via Metaverse environment.