AOGS, Fukuoka, Singapore, Jul. 29-Aug. 2, 2019
The Recent activities of R2O transition in Korea
Space Weather Operation : News & Updates
Seung Jun Oh1, Sang Woo Lee1, Jeong-Deok Lee1, Jong-Hyuk Yi1, Kyu-Chul
Choi1, Bowon Lee1 ,Young-Sil Kwak2, Jung-Heon Kim3 and Geonhwa Jee 4
1: SELab, Inc., Seoul, Korea. 2: KASI, Daejon, Korea, 3: CNU, Daejon, Korea,
4: KOPRI, Songdo, Korea
Organization Profiles
Company name
Space Environment Laboratory, Inc (SELab, Inc)
Category of
business
Software development, distribution and consulting
Address
5F Jin-Young BLDG 66-3 Non-Hyeon dong,
Gang-Nam gu, Seoul, Korea
Contact
T : +82-2-888-0850 (Representative)
F : +82-2-878-1971
e-mail : info@selab.co.kr
Establishment
2002
Web URL
Staffs
48
www.selab.co.kr
Basic Science
Administrative
Computer Science
Bachelor
Ph. D
Master
10%
40%
46%
15%
33%
56%
Business section
Please visit us @ http://selab.co.kr
Outline
•What’s up about SWx community
in Korea?
•SWx R2O transition activities in
collaboration with SELab, Inc.
•Summary and Perspectives
The Media release of Korea SWx activities
: The Quiet period since 2015
Declining phase of the popularity of SWx in
Korea during solar quiet period
Technical Trends?
Mitchell Waldrop, PNAS articles, 2019. 1. 22.
https://doi.org/10.1073/pnas.1821594116
The recent SWx research in Korea have been made to follow the technical trends
represented by a few keywords, ‘big data’, ‘machine learning’,or ‘deep learning’. Though
the challenging attempt was made by SWx community, however, the output is likely to
be premature to be in SWx operation due to the lack of large sets of SWx data or the
absence of the Domain knowledge.
Opportunities in SWx research and operation?
An illustration of SpaceX's constellation of thousands of Starlink satellites to provide global, high-speed, low-latency internet. Mark Handley/
University College London (May 16, 2019, from Business Insider.
Starlink by Space X
R2O transition activities
in Korean SWx operations : News and updates
1. SWx Operation and research organization
in Korea
4 Major organizations of SWx operation and
research in Korea
https://spaceweather.rra.go.kr/
https://spaceweather.kma.go.kr
The upper atmospheric monitoring using the optical and radar
observing instrument in polar region since 2016.
2. R2O transition activities in Korea :
News and updates as of 2018
ASSA : Automatic Solar Synoptic Analyser
Since 2013
Corona hole
Sunspot
Filaments
It’s still on operation since 2013, and it has been minor-updated.
Automatic CME detection (updates as of 2018)
ㅤ
CME detection results
in 2013
Halo CME automatic
detection results
Time of
21.5Rs
(UT)
yyyy-mm-dd
hh:mm
2014
2014
2014
23:10
8:01
16:35
2014
2014
2014
1 7
3 23
4 18
1 7
3 23
4 18
20:14
7:42
14:40
CME axis
latitude
(deg)
0
53
-49
2.6
-8.5
3.4
longitude
(deg)
88
-18
168
26.5
40.4
26.2
Half
angular
width
Arrival Date
(ENLIL Model)
radial
Arrival Date
(KSWC Forecast)
11.3
29.6
30.5
velocity
(km/s)
887.2
874.6
1077.3
ㅤ Year Mont Day Time Year Mont Day Time
h
(KST)
h
(KST)
No arrival
2014
1
10 4:30
No arrival
2014
3
26 4:30
No arrival
2014
4
20 20:00
ㅤ
48.7
53.6
68.5
1625.5
841.9
1428.8
2014
ㅤ2014
2014
deg
1
3
4
10
25
20
4:00 2014
23:00 2014
16:00 2014
1
3
4
10
26
20
4:30
4:30
20:00
It has been developed since 2014, deriving the input parameter to ENLIL model, and it’s
on the way to update the algorithm based on the cone shape assumption, and at the
same time, to prepare the new solar observing satellite. The prediction of the arrival date
seems to be more accurate after update.
Space Environment Model Verification system
10 models running and verified using the observational data by satellite.
The model output variable is categorized as categorical, multi-categorical, probabilistic,
positional and continuous, which is from the simple detection to the continuous
parameter. Using about 20 metrics to verify the model performance.
검증 불가능한 변수
예/아니오로 나뉘는
2등급 변수
Unable
Categorical
위치 정보 변수
등급 분류 등의
다등급 변수
Positional
Multi-Categorical
우주환경 분석 및 예
보 모델 산출물
흑점 넓이 등의 연
속값 변수
플레어 폭발 확률 등
의 확률 변수
Probabilistic
Continuous
Research on a prediction model of the
geomagnetic disturbance (2018- )
Corona hole detection
Geomagnetic indices
Training the model
The preliminary results of 2-day prediction of Kp index
Assimilative Regional
Ionospheric Model (2018 - )
IDA4D,TIE-GCM
Coordinate
KIPM model
Coordinate
Ingestion of the GPS TEC data
Internal Space weather
monitoring system
Daily SWx forecast report in SELab
The study on the Electron density irregularities in mid-latitude
VHF coherent radar at Daejon
in-situ measurement by Swarm satellite
Summary and perspectives :
What do we need in the future?
Summary and perspective
• The recent SWx operation and research are still
being very active even in quiet-release period by
media in Korea.
• The approach to SWx research by a number of
new technique is challenging, however, yet not
much promising to be implemented as the SWx
operation.
• Now, it is time to adopt the service-oriented
approach to SWx product switching from the
technology-oriented one to improve its marketfriendly nature and enhance the communication
for the successful PPP(Public Private Partnership).
Thank you !
Question or Comments?