Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor

Geomagnetic storm has been one of greatest events in space weather studies. Apart from the formation of aurora, geomagnetic induced current (GIC) is also induced during the storm when the storm intensity gets severe. The most common source that triggers this phenomenon is coronal mass ejection (C...

Full description

Saved in:

Bibliographic Details
Main Author:	Mohamad Ansor, Nurain
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Theory and method of social science statistics
Online Access:	https://ir.uitm.edu.my/id/eprint/57207/1/57207.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uitm-ir.57207
record_format	uketd_dc
spelling	my-uitm-ir.572072022-05-19T14:10:06Z Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor 2020-11 Mohamad Ansor, Nurain Theory and method of social science statistics Geomagnetic storm has been one of greatest events in space weather studies. Apart from the formation of aurora, geomagnetic induced current (GIC) is also induced during the storm when the storm intensity gets severe. The most common source that triggers this phenomenon is coronal mass ejection (CME) and it has been widely proven in past studies. CME is a massive eruption created by the Sun and occurs at active regions (AR) where intense magnetic field is built up. This region is called as AR due to solar activities (flares and CME) taking place at this area. Comprehensive studies on the structure and properties of AR are needed and very important in understanding the formation of CME variation in terms of their speed, angular width and the effects on storms that are triggered afterwards. Thus, this research is aimed to analyze the morphology of AR that initiate geomagnetic storm which include AR parameters (magnetic classification, McIntosh classification of sunspot groups and size of sunspot) and geomagnetic storm properties (Kp- index and CME speed) and to study the relationship between the intensity of geomagnetic storm and geomagnetic induced current (GIC). It focuses on 37 geomagnetic storm events that occurred in 2017. The raw data of AR and geomagnetic storm parameters were obtained from verified databases – Space Weather Live, National Aeronautics and Space Agency (NASA) and National Oceanic and Atmospheric Administration (NOAA). The data was then analyzed by using Principal Component Analysis (PCA) method in studying the morphology of AR, while study on the relationship between storm intensity and GIC was conducted qualitatively by using descriptive approach. The research found that size of sunspot is the most potential AR parameter that determines the formation of fast- moving CME that has caused multiple geomagnetic storms in 2017. Another result from this research deduced that GIC activity is directly proportional to storm intensity, whereby, GIC became more fluctuating as storm was getting more intense. This is believed due to the ionospheric disturbances that modified the magnitudes of magnetic field and thus, electric field was induced on the ground and underneath of it. 2020-11 Thesis https://ir.uitm.edu.my/id/eprint/57207/ https://ir.uitm.edu.my/id/eprint/57207/1/57207.pdf text en public masters Universiti Teknologi MARA Faculty of Applied Sciences Hamidi, Zety Sharizat (Assoc. Prof. Dr.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Hamidi, Zety Sharizat (Assoc. Prof. Dr.)
topic	Theory and method of social science statistics
spellingShingle	Theory and method of social science statistics Mohamad Ansor, Nurain Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor
description	Geomagnetic storm has been one of greatest events in space weather studies. Apart from the formation of aurora, geomagnetic induced current (GIC) is also induced during the storm when the storm intensity gets severe. The most common source that triggers this phenomenon is coronal mass ejection (CME) and it has been widely proven in past studies. CME is a massive eruption created by the Sun and occurs at active regions (AR) where intense magnetic field is built up. This region is called as AR due to solar activities (flares and CME) taking place at this area. Comprehensive studies on the structure and properties of AR are needed and very important in understanding the formation of CME variation in terms of their speed, angular width and the effects on storms that are triggered afterwards. Thus, this research is aimed to analyze the morphology of AR that initiate geomagnetic storm which include AR parameters (magnetic classification, McIntosh classification of sunspot groups and size of sunspot) and geomagnetic storm properties (Kp- index and CME speed) and to study the relationship between the intensity of geomagnetic storm and geomagnetic induced current (GIC). It focuses on 37 geomagnetic storm events that occurred in 2017. The raw data of AR and geomagnetic storm parameters were obtained from verified databases – Space Weather Live, National Aeronautics and Space Agency (NASA) and National Oceanic and Atmospheric Administration (NOAA). The data was then analyzed by using Principal Component Analysis (PCA) method in studying the morphology of AR, while study on the relationship between storm intensity and GIC was conducted qualitatively by using descriptive approach. The research found that size of sunspot is the most potential AR parameter that determines the formation of fast- moving CME that has caused multiple geomagnetic storms in 2017. Another result from this research deduced that GIC activity is directly proportional to storm intensity, whereby, GIC became more fluctuating as storm was getting more intense. This is believed due to the ionospheric disturbances that modified the magnitudes of magnetic field and thus, electric field was induced on the ground and underneath of it.
format	Thesis
qualification_level	Master's degree
author	Mohamad Ansor, Nurain
author_facet	Mohamad Ansor, Nurain
author_sort	Mohamad Ansor, Nurain
title	Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor
title_short	Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor
title_full	Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor
title_fullStr	Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor
title_full_unstemmed	Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor
title_sort	morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (gic) / nurain mohamad ansor
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Applied Sciences
publishDate	2020
url	https://ir.uitm.edu.my/id/eprint/57207/1/57207.pdf
_version_	1783734968024825856

Morphological study of active region causing coronal mass ejection related geomagnetic storm and its effects to geomagnetic induced current (GIC) / Nurain Mohamad Ansor

Similar Items