scholarly journals Development of Site-Specific Wind Hazard Map for Peninsular Malaysia via Spatial Modeling

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 729 ◽  
Author(s):  
Saddam Hussein Abo Sabah ◽  
Noram Irwan Ramli ◽  
Taksiah A. Majid ◽  
Shaharudin Shah Zaini
Keyword(s):  
Information System ◽  
Wind Speed ◽  
Spatial Modeling ◽  
Peninsular Malaysia ◽  
Geographical Information ◽  
Hazard Map ◽  
Land Use Land Cover ◽  
Site Specific ◽  
Wind Hazard ◽  
The Hill

The commonly used approach to predict and evaluate the wind risk in Peninsular Malaysia is to employ the basic wind speed (Vs) hazard map, which underestimates the real damage due to the limitation of factors considered by the current map. This paper aimed to develop a new wind hazard map for Peninsular Malaysia based on the site wind speed (Vsite) rather than the Vs using the Geographical Information System. The development of the Vsite map considered the effects of the Land Use Land Cover (LULC) and the topography conditions that were not taken into consideration by the Malaysian Standard during the development of the Vs map. The statistical analysis proved that the wind hazard in Peninsular Malaysia is directly proportional to the LULC and inversely proportional to the Hill Shape Multiplier. In addition, the results showed that the existing Vs map underrated the wind hazard in Peninsular Malaysia by almost 9.02% to 17.79% compared to the developed Vsite map. Therefore, the use of the newly developed map to evaluate the wind hazards will significantly enhance the assessment, and the new map has the potential to be incorporated into the Malaysian Standard for this purpose.

scholarly journals Modelagem Espacial da Velocidade do Vento a 50, 75 e 100 Metros de Altura para o Estado de Minas Gerais, Brasil, Empregando Geoestatística (Wind speed spacial modeling in the heights of 50, 75 and 100 meters in the state of Minas Gerais, Brazil, using...)

2017 ◽  
Vol 10 (4) ◽  
pp. 1281
Author(s):  
Deborah Luiza Poletto de Paula ◽  
Fernando Angelo Couto Cardoso ◽  
Rafael Balbino Cardoso ◽  
Giselle De Paula Queiroz Cunha ◽  
Eliane Maria Vieira
Keyword(s):  
Power Generation ◽  
Information System ◽  
Wind Speed ◽  
Wind Energy ◽  
Minas Gerais ◽  
The State ◽  
Geographical Information ◽  
Espírito Santo ◽  
Wind Potential ◽  
Espirito Santo

Sendo considerada uma das alternativas energéticas mais promissoras na busca de soluções para reverter o quadro atual de mudanças climáticas, a energia eólica tem ganhado destaque no cenário mundial por ser uma fonte de energia renovável e limpa quando comparada com outros tipos de geração. O conhecimento do regime dos ventos é um dos elementos mais importantes na avaliação.do potencial eólico de uma região, contudo a instalação de torres de medição em quantidade e disposição adequada para estes estudos ainda apresentam um custo financeiro e logístico elevado, desta forma, o trabalho objetivou especializar a velocidade do vento no estado de Minas Gerais a partir de dados coletado por estações do Instituto Nacional de Meteorologia INMET. Foram empregadas 73 estações meteorológicas distribuídas geograficamente pelo estado e nos estados que o circundam. Os mapas de velocidade média do vento para as alturas de 50, 75 e 100 metros foram obtidos a partir de um interpolador geoestatístico chamado krigagem universal, trabalhado no Sistema de Informações Geográficas (SIG), ArcGIS®. Os mapas produzidos demonstram que na região noroeste e norte do estado, próximo aos estados do Espírito Santo e Bahia, valores iguais e superiores a velocidade de 2,5 m/s (velocidade adotada como mínima para a geração de energia) foram observados para todos os meses avaliados, demonstrando ser esta uma região potencial, onde estudos mais locais devem ser realizados para a confirmação deste potencial para geração de energia eólica.  A B S T R A C TConsidered one of the most promising energy alternatives in the search for solutions to reverse the current climate change picture, wind energy has gained prominence in the world scenario as a renewable and clean source of energy when compared to other types of power generation. Knowledge of the wind regime is one of the most important elements in the evaluation of the wind potential of a region. However, the installation of measurement towers in quantity and adequate layout for these studies still represents a high financial and logistical cost. This work aimed to model the wind speed in the state of Minas Gerais, Brazil from data collected by INMET National Meteorological Institute, using data from 73 meteorological stations distributed geographically by the state and in the states that surround it. The mean wind speed maps for the heights of 50, 75 and 100 meters were generated with a geostatistical interpolator called universal kriging, available on the Geographic Information System (GIS) software, ArcGIS®. The maps produced showed that in the northwest and north of the state, close to the states of Espírito Santo and Bahia. Values equal to and greater than 2.5 m/s (speed adopted as minimum for power generation) were observed for all the months evaluated, demonstrating that this is a potential region where more local studies must be carried out to confirm this potential for wind energy generation.Keywords: Wind Speed; Geographical Information System; State of Minas Gerais; kriging.  

scholarly journals Multi criterion Analysis for Ground water Potential Zones along River Gostani and surroundings of Visakhapatnam, Andhra Pradesh, India.

2018 ◽  
Vol 7 (3.31) ◽  
pp. 186
Author(s):  
K M.Ganesh ◽  
G Jai Sankar ◽  
M Jagannadha Rao ◽  
A C.S.V. Prasad
Keyword(s):  
Information System ◽  
Andhra Pradesh ◽  
Groundwater Potential ◽  
Geographical Information ◽  
Overlay Analysis ◽  
Land Use Land Cover ◽  
Groundwater Potential Zones ◽  
Analytical Hierarchical Process ◽  
Weighted Overlay ◽  
Criterion Analysis

The present study is to make an analysis of the groundwater potential zones along Gostani river and the nearby areas.  The data is collected from the field concern department and through internet to make a study.  For the study seven parameters have been taken into consideration like geology, geomorphology, drainage, slope, soil, land use / land cover and lineaments.   Thematic maps prepared and reclassified under Geographical Information System (G.I.S) environment.  Weightage for each theme and its classes have been allocated by making use of weighted overlay analysis and then Analytical Hierarchical Process in Arc G.I.S. so as to find out the result.  

scholarly journals INTEGRATIVE USE OF PENMAN-MONTEITH EQUATION WITH REMOTE SENSING AND GEOGRAPHICAL INFORMATION SYSTEM TECHNIQUES TO ESTIMATE EVAPOTRANSPIRATION VRIANCES IN IRAQ

2020 ◽  
Vol 51 (2) ◽  
pp. 530-541
Author(s):  
Jawad & Abed Mohamed
Keyword(s):  
Remote Sensing ◽  
Information System ◽  
Wind Speed ◽  
Reference Evapotranspiration ◽  
Geographical Information ◽  
Long Period ◽  
Integrative System ◽  
Daily Evapotranspiration ◽  
Monteith Equation

This research was aimed to construct an integrative system which is capable of accurate determining and analyzing evapotranspiration rates in Iraq for long period , Since high evapotranspiration rates and extreme shortage in precipitation are the main causes of aridity, which considered principal reason for land degradation and land desertification eventually. FAO Penman-Monteith method was adopted because it's the international standard method. In this work meteorological readings of nine stations with comprehensive covering for Iraq's area were taken for every ten years in a long-term range (31 years). The daily evapotranspiration values had been calculated, then after the annual summation value determined for the years (1987, 1997, 2007, and 2017). The use of spatial analysis schemes proved that generally eighties decade of the last century had climax (Etr) values, then ETr rates rapidly decreased in whole Iraq except some anomalies. There were two reasons for this decrement, firstly air temperature value decent which increase relative humidity. Secondly wind speed rates falling (which considered the principal cause for reference evapotranspiration rates descending in this case).

scholarly journals AN IMPROVEMENT OF INTEGRATED GEOGRAPHICAL INFORMATION SYSTEM IN MANAGING SEWERAGE TREATMENT PLANT

2021 ◽  
Vol 19 ◽  
Author(s):  
Muhamad Zuraini Idris ◽  
Robiah Suratman ◽  
Salfarina Shamsuddin
Keyword(s):  
Information System ◽  
Geographical Information System ◽  
Rapid Development ◽  
Large City ◽  
Treatment Plant ◽  
Peninsular Malaysia ◽  
Geographical Information ◽  
Daily Routine ◽  
Sewerage System ◽  
Attribute Data

In Malaysia, the Geographical Information System (GIS) is widely used by various organizations in both government and private sectors because of its various capabilities. The rapid development process in the large city in Peninsular Malaysia and new area has caused an increasing number of the sewerage treatment plant (STP) maintained by Indah Water Konsortium Sdn Bhd (IWK) every year. Nowadays, with the big services areas and limited staffs the IWK had faced many issues related to the sewerage such as a public complaint on blockage, overflow and others. Thus, based on the powerful function of this GIS, the IWK also has used the GIS application known as Integrated Geographical Information System (IGIS) in their daily routine works. However, due to the weaknesses of this existing system, it cannot be optimally utilized in managing and maintaining the sewerage system more efficient. The main objective of this research focuses on analyzing user requirements to improve IGIS based on the current issues faced by them. The method used in this study is qualitative method using a face-to-face interview with IGIS users in getting any feedback from them on the existing data with an examining what is the main attribute data required. Then a content analysis was used to analyze it by updating all the data required and removing unnecessary data from the IGIS. As a result, the newly updated attribute data into IGIS will help the users to conduct proper planning in controlling the increasing number of STP every year and to manage the sewerage system more efficiently.

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