Introduction of Space Weather and Application of Deep Learning · 2020-05-24 · Introduction of...

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Introduction of Space Weather and Application of Deep Learning Eunsu Park [[email protected]] Sun & Space Weather Lab. School of Space Research, Kyung Hee University Intelligence Space Seminar / 19 MAR 2018

Transcript of Introduction of Space Weather and Application of Deep Learning · 2020-05-24 · Introduction of...

Page 1: Introduction of Space Weather and Application of Deep Learning · 2020-05-24 · Introduction of Space Weather and Application of Deep Learning. Eunsu Park [espark@khu.ac.kr] Sun

Introduction of Space Weather and Application of Deep Learning

Eunsu Park [[email protected]]

Sun & Space Weather Lab.School of Space Research, Kyung Hee University

Intelligence Space Seminar / 19 MAR 2018

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Q : Space Weather?

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SDO, Continuum2018/03/15 02:30:00

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SolarDynamicsObservatoryWavelengths

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Solar Flare2003/10/28~30SOHO/EIT

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Coronal Mass Ejections2003/10/25~30SOHO/LASCO

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1997년 (프랑스 / ARIANE 로켓)

로켓 발사 통제 시스템의 전자장비 장애발생

2001년 (미국 / Athena 로켓)

태양 활동으로 인하여 발사 연기

2003년 (한국 / 무궁화위성)

노이즈 증폭, 태양전지판 성능 감소, 위치 에러 증폭

1989년 (캐나다 퀘벡)

변압기 손상으로 인한 9시간 정전 사태

1998년 (미국, 갤럭시4위성)

통신위성 작동 불능으로 인한 미국 전역 통신 마비

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Space Weather Lab. in KHU

1. 태양활동에대한물리적이해

2. 태양활동으로부터발생하는위험을예측및예보하

기위한모델개발및배포

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태양자기장영상을이용한

플레어예보모델개발

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MagnetogramSOHO/MDI & SDO/HMI

Active Region

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MagnetogramSOHO/MDI & SDO/HMI

Active Region

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CNN ML Statistics

AlexNet GoogLeNet Our Model Colak and Qahwaji (2009) Bloomfield et al. (2012)

POD 0.72 0.84 0.84 0.81 0.75

CSI 0.64 0.68 0.70FAR 0.14 0.21 0.19 0.30 0.65

HSS 0.57 0.57 0.60 0.51 0.32

TSS 0.57 0.56 0.60 0.46

24시간태양플레어예보 (Park et al. in progress)

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EUV (극자외선) 영상을이용한

태양자기장영상생성

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Training Test

InputSDO/AIA

EUV Images(2011~2016)

SDO/AIAEUV Images

(2017~)

OutputSDO/HMI

Magnetograms(2011~2016)

AI-generatedMagnetograms

(2017~)

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Real HMI front-side magnetograms

Constructed back-side magnetograms

태양후면자기장영상생성 (Kim et al. in progress)

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태양자기장영상을이용한

EUV (극자외선) 영상생성

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Training Test

InputSDO/HMI

Magnetograms(2011~2016)

SDO/HMIMagnetograms

(2017~)

OutputSDO/AIA

EUV Images(2011~2016)

AI-generatedEUV Images

(2017~)

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AIA 94 AIA 131 AIA 171

AIA 193 AIA 211 AIA 304

AIA 335 AIA 1600 AIA 1700

AI-generated EUV imagesReal SDO/HMI magnetogram

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Kitt Peak magnetorgam (since 1974) → EUV images

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Real Kitt Peak magnetogram AI-generated EUV images !

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태양흑점그림을이용한

자기장영상생성

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Sunspot DrawingMt. Wilson, Big-Bear, KASI etc.

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AI-generated magnetogram

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Carrington Sunspot (1859) Galileo Sunspot (1613)

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Space Weather…

1. 질좋고양많은데이터가 60년대이후로

2. (거의) 모든데이터는오픈

3. 딥러닝은아직…

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NASAFrontier Development Lab.

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+ Deep Learning

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• Space Resources

• Exoplanets

• Space Weather1. Find new influences of solar dynamics on terrestrial systems2. Show tomorrow’s Sun, today3. Predicting solar spectral irradiance from SDO/AIA observations4. Improve ionospheric models using GNSS/GPS data

• Space Traffic Management / Orbital Debris

• Earth Observation

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AI Researcher &Space Exploration Researcher

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Thank you!