Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369378
F. Wijayanto
Education still become one of many major problems in Indonesia even though it should be the biggest weapon in this country with its number. Inequality of input and output qualities are two of many problems in education which become polemic amongst regions. People said that regions in Java Island have much better intakes and outputs qualities than other regions in other islands. The idea of discussion is related to the fact that the capital city of Indonesia is in Java Island. This research being held in order to investigate the relation between the intakes and outputs qualities and the distance from the capital to regions. This paper contributes facts regarding intakes and outputs qualities as a preliminary research which will be used as a baseline for further research. The research was done by using hierarchical clustering method to all of data of 33 province in Indonesia in order to see their similarities based on the latest Indonesia educational data which had been released by Ministry of Education and Culture. On the data preprocessing, indicators which related to intakes and outputs are separated and clustered separately. At the end of clustering process, there are two different clustering results — one for intakes quality and the other for outputs quality. Both clustering results then analyzed by mapping clustered regions into geographical map. As the result, it was unveiled the qualities of elementary schools intakes and outputs does not depend on the distance to the capital from certain region. It also found that the outputs quality and intakes quality is not linearly related. More than that, it is believed that the educational quality is a function which depend on more complex variables.
{"title":"Indonesia education quality: Does distance to the capital matter? (A clustering approach on elementary school intakes and outputs qualities)","authors":"F. Wijayanto","doi":"10.1109/TICST.2015.7369378","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369378","url":null,"abstract":"Education still become one of many major problems in Indonesia even though it should be the biggest weapon in this country with its number. Inequality of input and output qualities are two of many problems in education which become polemic amongst regions. People said that regions in Java Island have much better intakes and outputs qualities than other regions in other islands. The idea of discussion is related to the fact that the capital city of Indonesia is in Java Island. This research being held in order to investigate the relation between the intakes and outputs qualities and the distance from the capital to regions. This paper contributes facts regarding intakes and outputs qualities as a preliminary research which will be used as a baseline for further research. The research was done by using hierarchical clustering method to all of data of 33 province in Indonesia in order to see their similarities based on the latest Indonesia educational data which had been released by Ministry of Education and Culture. On the data preprocessing, indicators which related to intakes and outputs are separated and clustered separately. At the end of clustering process, there are two different clustering results — one for intakes quality and the other for outputs quality. Both clustering results then analyzed by mapping clustered regions into geographical map. As the result, it was unveiled the qualities of elementary schools intakes and outputs does not depend on the distance to the capital from certain region. It also found that the outputs quality and intakes quality is not linearly related. More than that, it is believed that the educational quality is a function which depend on more complex variables.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131853401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369337
Kittipat Wiriyaprasat, M. Ruchanurucks
An approach to video stabilization for small unmanned aerial vehicles (UAVs) using computer vision techniques is proposed. As gimbals (mechanical video camera stabilizer) cannot be installed on UAVs with small payload, captured videos can be shaky. A development of `software image stabilizer' has been suggested by a military institute to alleviate such adverse effect. We, similarly to other researchers, choose homography theory for warping the shaky video. The novelty is we can cope with large rotational difference. This is possible by revamping homography matrix, using information from an orientation sensor attached to a video camera to acquire the camera's orientation in real time. Then, extrinsic parameters derived from the sensor and pre-computed intrinsic parameters were used to generate our modified homography matrix. Furthermore, calibration between camera and sensor is necessary because an alignment of sensor and camera is imperfect. The calibration relies on an Iterative Least Square method.
{"title":"Realtime VDO stabilizer for small UAVs using a modified homography method","authors":"Kittipat Wiriyaprasat, M. Ruchanurucks","doi":"10.1109/TICST.2015.7369337","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369337","url":null,"abstract":"An approach to video stabilization for small unmanned aerial vehicles (UAVs) using computer vision techniques is proposed. As gimbals (mechanical video camera stabilizer) cannot be installed on UAVs with small payload, captured videos can be shaky. A development of `software image stabilizer' has been suggested by a military institute to alleviate such adverse effect. We, similarly to other researchers, choose homography theory for warping the shaky video. The novelty is we can cope with large rotational difference. This is possible by revamping homography matrix, using information from an orientation sensor attached to a video camera to acquire the camera's orientation in real time. Then, extrinsic parameters derived from the sensor and pre-computed intrinsic parameters were used to generate our modified homography matrix. Furthermore, calibration between camera and sensor is necessary because an alignment of sensor and camera is imperfect. The calibration relies on an Iterative Least Square method.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131005885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369331
Y. Mulyadi, L. Farida, A. Abdullah, K. A. Rohmah
This paper presents the research results of Short Term Load Forecasting (STLF) on the power distribution systems in the West Java, Indonesia. Forecasting is executed using Artificial Neural Network (ANN), with back propagation algorithms. Experiments conducted on the data load holidays (anomalous load). To obtain optimal prediction accuracy, then conducted the experiment by changing the number of input learning and learning rate value. The simulation results verify that the ANN method performs more accurate than the conventional method used Indonesia Power Company. Results of this study are expected to be used as an alternative method based on soft computing.
{"title":"Anomalous STLF for Indonesia power system using Artificial Neural Network","authors":"Y. Mulyadi, L. Farida, A. Abdullah, K. A. Rohmah","doi":"10.1109/TICST.2015.7369331","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369331","url":null,"abstract":"This paper presents the research results of Short Term Load Forecasting (STLF) on the power distribution systems in the West Java, Indonesia. Forecasting is executed using Artificial Neural Network (ANN), with back propagation algorithms. Experiments conducted on the data load holidays (anomalous load). To obtain optimal prediction accuracy, then conducted the experiment by changing the number of input learning and learning rate value. The simulation results verify that the ANN method performs more accurate than the conventional method used Indonesia Power Company. Results of this study are expected to be used as an alternative method based on soft computing.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115342600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369372
Preedawon Kadmateekarun, S. Nuanmeesri
Automatic classification of sentiment is widely used in academia and industry by several techniques. This paper aims to develop a method of sentiment analysis for Thais customers to identify the different notions into two opinions (positive or negative) to consume the products. These opinions are represented by text that is derived from the Thais speech audio content in social media especially video reviews about beauty product. Then, this work implements the model by the Naïve Bayes text classification. The results could be demonstrated that the method can provide more effectiveness and satisfactory accuracy for automatic sentiment analysis.
{"title":"Automatic sentiment analysis from opinion of Thais speech audio","authors":"Preedawon Kadmateekarun, S. Nuanmeesri","doi":"10.1109/TICST.2015.7369372","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369372","url":null,"abstract":"Automatic classification of sentiment is widely used in academia and industry by several techniques. This paper aims to develop a method of sentiment analysis for Thais customers to identify the different notions into two opinions (positive or negative) to consume the products. These opinions are represented by text that is derived from the Thais speech audio content in social media especially video reviews about beauty product. Then, this work implements the model by the Naïve Bayes text classification. The results could be demonstrated that the method can provide more effectiveness and satisfactory accuracy for automatic sentiment analysis.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125859918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369376
P. Bamrungthai, Suteera Puengsawad
This paper presents an automatic people counting system for indoor environment. The system processes visual information obtained from an IP camera that is mounted in topview position above the door. The people detection process is designed to perform as a sequence of steps, including background subtraction, morphological operation, and blob detection. The results from the detection process are filtered and tracked to improve robustness of the system. A region-based approach is applied to the people counting process. The image obtained from the camera is divided into three regions and the counting algorithm is developed to track the people's state in the regions. The algorithm can count people with IN and OUT direction. Even when the system was setup without lighting control, the developed system can correctly count people as shown in the experiments. The output of the system can be exported to be used in downstream applications such as security surveillance and statistical analysis of customer behavior.
{"title":"Robust people counting using a region-based approach for a monocular vision system","authors":"P. Bamrungthai, Suteera Puengsawad","doi":"10.1109/TICST.2015.7369376","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369376","url":null,"abstract":"This paper presents an automatic people counting system for indoor environment. The system processes visual information obtained from an IP camera that is mounted in topview position above the door. The people detection process is designed to perform as a sequence of steps, including background subtraction, morphological operation, and blob detection. The results from the detection process are filtered and tracked to improve robustness of the system. A region-based approach is applied to the people counting process. The image obtained from the camera is divided into three regions and the counting algorithm is developed to track the people's state in the regions. The algorithm can count people with IN and OUT direction. Even when the system was setup without lighting control, the developed system can correctly count people as shown in the experiments. The output of the system can be exported to be used in downstream applications such as security surveillance and statistical analysis of customer behavior.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121881139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369409
J. Saelao, N. Patcharaprakiti
This paper propose an analysis average annual rainfall in the future for agriculture purpose planning. The Decision and policy makers in managing irrigation for agriculture and promoting farm in Sansai District, Chiang Mai. In the study, researchers used data on average monthly rainfall of the year 1993-2012, at the station in Sansai District, Chiang Mai of Hydrology and Water Management Northern Irrigation Department to analyze trends and predict the trend of rainfall. The rainfall trend analysis is predicted based on the analysis of time series and descriptive statistics. The average annual rainfall data analysis has proposed. The trend of the average monthly rainfall in the next 5 years ahead is increasing. Sansai District, Chiang Mai is the trend increased in the period January-October of each year and will decline during November-December of each year. The results of this analysis will be used in planning, water management, irrigation of agricultural crops and the amount of water that is appropriate.
{"title":"A rainfall trend analysis for agriculture irrigation system management case study: Sansai district - Chiangmai province","authors":"J. Saelao, N. Patcharaprakiti","doi":"10.1109/TICST.2015.7369409","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369409","url":null,"abstract":"This paper propose an analysis average annual rainfall in the future for agriculture purpose planning. The Decision and policy makers in managing irrigation for agriculture and promoting farm in Sansai District, Chiang Mai. In the study, researchers used data on average monthly rainfall of the year 1993-2012, at the station in Sansai District, Chiang Mai of Hydrology and Water Management Northern Irrigation Department to analyze trends and predict the trend of rainfall. The rainfall trend analysis is predicted based on the analysis of time series and descriptive statistics. The average annual rainfall data analysis has proposed. The trend of the average monthly rainfall in the next 5 years ahead is increasing. Sansai District, Chiang Mai is the trend increased in the period January-October of each year and will decline during November-December of each year. The results of this analysis will be used in planning, water management, irrigation of agricultural crops and the amount of water that is appropriate.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121400186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369342
T. Poojitganont, H. Berg, Chirdchai Kingko, Natthaphon Bunathuek, B. Watjatrakul
The energy demands worldwide and especially in developing countries are significantly increased, whereas the numbers of electricity supply are not enlarged at the same ratio. Together with the decentralized ideal of the forthcoming power plants, the 100kW micro gas turbine (MGT) could be one of the solutions for the future. Based on the multi-fuel MGT development project for small power plants, the 1D simulation of the overall system with MATLAB has been performed to utilize as an analysis tool for optimizing the thermodynamic cycle of the system. At the beginning the code has been validated with the commercial program for power plant simulation, called EBSILON Professional. The result shows that they are compatible in the same direction. The next part illustrates the comparing result of the efficiency on the whole system, when the turbine inlet temperature has changed. The results show that higher turbine inlet temperature provides also higher global efficiency. However, the minimum efficiencies, which are obtained on each specific turbine inlet temperature, are not corresponded at the same pressure ratio. In the latter section, the effect of fuel types is also considered on the output efficiency. The results show that to maintain the output efficiency on each fixed turbine inlet temperature the fuel mass flow rate has to be increased in reciprocal to their lower heating values. However, in the lower range of their mass flow rate the increment of efficiency is not proportional to the addition of fuel.
{"title":"One-dimensional thermodynamic cycle analysis of micro gas turbine (MGT) for small power plant","authors":"T. Poojitganont, H. Berg, Chirdchai Kingko, Natthaphon Bunathuek, B. Watjatrakul","doi":"10.1109/TICST.2015.7369342","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369342","url":null,"abstract":"The energy demands worldwide and especially in developing countries are significantly increased, whereas the numbers of electricity supply are not enlarged at the same ratio. Together with the decentralized ideal of the forthcoming power plants, the 100kW micro gas turbine (MGT) could be one of the solutions for the future. Based on the multi-fuel MGT development project for small power plants, the 1D simulation of the overall system with MATLAB has been performed to utilize as an analysis tool for optimizing the thermodynamic cycle of the system. At the beginning the code has been validated with the commercial program for power plant simulation, called EBSILON Professional. The result shows that they are compatible in the same direction. The next part illustrates the comparing result of the efficiency on the whole system, when the turbine inlet temperature has changed. The results show that higher turbine inlet temperature provides also higher global efficiency. However, the minimum efficiencies, which are obtained on each specific turbine inlet temperature, are not corresponded at the same pressure ratio. In the latter section, the effect of fuel types is also considered on the output efficiency. The results show that to maintain the output efficiency on each fixed turbine inlet temperature the fuel mass flow rate has to be increased in reciprocal to their lower heating values. However, in the lower range of their mass flow rate the increment of efficiency is not proportional to the addition of fuel.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116966227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369387
N. Pinpathomrat
To better explain information technology usage, this research conceptualized usage as two steps, uptake and continuance, and the aim was to construct the Technology Usage Model (TUM). At this stage, the TUM was constructed by applying three grounded theories: Technology Acceptance Model (TAM); Cognitive Dissonance Theory (CDT); and Adaptation Level Theory (ALT). The future work will focus on the validation of the model using data triangulation and longitudinal study.
{"title":"Technology usage model (TUM)","authors":"N. Pinpathomrat","doi":"10.1109/TICST.2015.7369387","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369387","url":null,"abstract":"To better explain information technology usage, this research conceptualized usage as two steps, uptake and continuance, and the aim was to construct the Technology Usage Model (TUM). At this stage, the TUM was constructed by applying three grounded theories: Technology Acceptance Model (TAM); Cognitive Dissonance Theory (CDT); and Adaptation Level Theory (ALT). The future work will focus on the validation of the model using data triangulation and longitudinal study.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134495489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369414
Suchat Suwannatus, U. Pakdee
The homemade sputtering process was devised by a team of researchers. The copper bulk with nominal purity of 99.9% was used as a cathode target. Thin copper films were fabricated on glass slides by direct current sputtering (DC-sputtering) in vacuum chamber with base pressure of typically 10-2 mbar under argon gas (Ar). The effects of coated distances from cathode target to holder as 4, 7 and 10 cm on the morphology and crystallinity of thin Cu films were investigated. The system was designed and developed to improve the performance of coating thin film. A rotating holder was used as a supported function for the effective growth of the films. The holder was rotated with a constant angular speed of 30 rpm. The samples were examined with scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray diffractometer (XRD). The experimental data revealed that the surface roughness and the crystallinity of thin copper films were improved by rotating function of a substrate holder.
{"title":"The rotating substrate holder of sputtering deposition for effective growth of thin copper films","authors":"Suchat Suwannatus, U. Pakdee","doi":"10.1109/TICST.2015.7369414","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369414","url":null,"abstract":"The homemade sputtering process was devised by a team of researchers. The copper bulk with nominal purity of 99.9% was used as a cathode target. Thin copper films were fabricated on glass slides by direct current sputtering (DC-sputtering) in vacuum chamber with base pressure of typically 10-2 mbar under argon gas (Ar). The effects of coated distances from cathode target to holder as 4, 7 and 10 cm on the morphology and crystallinity of thin Cu films were investigated. The system was designed and developed to improve the performance of coating thin film. A rotating holder was used as a supported function for the effective growth of the films. The holder was rotated with a constant angular speed of 30 rpm. The samples were examined with scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray diffractometer (XRD). The experimental data revealed that the surface roughness and the crystallinity of thin copper films were improved by rotating function of a substrate holder.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133387575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/TICST.2015.7369403
Pattara Sukthawee, S. Kirtsaeng
The Numerical Weather Prediction (NWP) plays a vital role in short-range rainfall forecasting. The atmospheric physical parameters have been continuously developed for the NWP. These parameters are implemented into NWP models based on equations derived from theoretical assumptions based on observations and physics of the event. The aim of study is to investigate the use of three cumulus parameterization schemes (CPS), namely, Kain-Fritsch (KF), Bett-Miller-Janjic (BMJ) and Grell-Devenyi (GD), in the version 3.5.2 of Weather Research and Forecasting (WRF) model for the off-season heavy rainfall caused by cold surge during the pre-monsoon (April) of 2013 in the east coast of southern Thailand. The initial conditions preceding the heavy rainfall events, 24, 48, and 72 forecasts were simulated using the WRF with three different schemes. The performance of the schemes was measured by the comparison with observed rainfall data from Thai Meteorological Department and Global Satellite Mapping of Precipitation (GSMaP). The result shows that all of schemes can detect the rainfall amount with the forecast from the GD being higher than that of the KF and BMJ scheme. The statistical indicators utilized to compare the performance of the three schemes include critical success index (CSI), equitable threat score (ETS). Two statistical indicators support the finding that the BMJ scheme has a slightly better performance than KF and BMJ, except Probability of detection (POD) that KF has the best skill when used in off-season rainfall forecasts over the east coast of southern Thailand.
{"title":"Comparison of rainfall pattern and statistical verification of CPS for extreme rainfall simulation on 13 April 2013","authors":"Pattara Sukthawee, S. Kirtsaeng","doi":"10.1109/TICST.2015.7369403","DOIUrl":"https://doi.org/10.1109/TICST.2015.7369403","url":null,"abstract":"The Numerical Weather Prediction (NWP) plays a vital role in short-range rainfall forecasting. The atmospheric physical parameters have been continuously developed for the NWP. These parameters are implemented into NWP models based on equations derived from theoretical assumptions based on observations and physics of the event. The aim of study is to investigate the use of three cumulus parameterization schemes (CPS), namely, Kain-Fritsch (KF), Bett-Miller-Janjic (BMJ) and Grell-Devenyi (GD), in the version 3.5.2 of Weather Research and Forecasting (WRF) model for the off-season heavy rainfall caused by cold surge during the pre-monsoon (April) of 2013 in the east coast of southern Thailand. The initial conditions preceding the heavy rainfall events, 24, 48, and 72 forecasts were simulated using the WRF with three different schemes. The performance of the schemes was measured by the comparison with observed rainfall data from Thai Meteorological Department and Global Satellite Mapping of Precipitation (GSMaP). The result shows that all of schemes can detect the rainfall amount with the forecast from the GD being higher than that of the KF and BMJ scheme. The statistical indicators utilized to compare the performance of the three schemes include critical success index (CSI), equitable threat score (ETS). Two statistical indicators support the finding that the BMJ scheme has a slightly better performance than KF and BMJ, except Probability of detection (POD) that KF has the best skill when used in off-season rainfall forecasts over the east coast of southern Thailand.","PeriodicalId":251893,"journal":{"name":"2015 International Conference on Science and Technology (TICST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131157822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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