New KSWC Action for Observation and Research of Ionosphereaoswa4.spaceweather.org/presentationfiles/20161026/G4-3.pdf · 2016. 10. 31. · Observation Spac e ased Ionosondes (x2)

KSWC Action for Observation and Research of Ionosphere

Contents

1. KSWC Overview

2. Operating System for Ionosphere

Observation

3. Tailored Model

4. Future Plan

KSWC Overview

1975

Sunspot Obs.

Solar Radio

Spectrograph

Internet SWx Service

(http://spaceweather.go.kr)

F10.7 Solar

Flux Meter

Alerts Service

via SMS

200919671966

Foun. of

the RRA

Iono. Obs. & HF Predi.

1998

NOAA Agreement

(Personnel exchanges;

Hong(2010), Onsager(2011),

Han(2012), Tegnell(2013))

Geomag. Obs.

1985 1995 2006 2007

Radio Act

2011

Opening KSWC(ACE tracking station, IPS, RIMS)

The 14th RWC of

ISES

2011

RRA started to observe ionosphere and service HF prediction in 1967.

KSWC founded in 2011 at JEJU and operated various observation system including

satellite receiving antenna.

Models & Services

ASSA, IPS-Enlil,

NAIRAS, IRI-VOACAP, GIC, etc.

(29ea.)

Customers

Satellite

Comm.

Comm.DefenseDefense

Power

Aviation

Products

3-hourly Condi. & Forecast

3-day Forecast(daily)

27-day Forecast(weekly)

HF Prediction(monthly)

Alerts & White Alerts

WWW

Observation

Spa

c

eG

roun

d B

ased

Ionosondes (x2)

& TEC (x5)

Mag (x3)

SRS (30MHz~2.5GHz)

F10.7 Meter

IPS

RIMS (30MHz~18GHz)

ACE, DSCOVR,

STEREOTracking

GIC Monitor (x4)

Operate 11 observation systems for monitoring space weather.

Produce alerts & forecast of space weather and supply various customers.

KSWC Overview

Operating System for Ionosphere Observation

DIGISONDE

VIPIR

GNSS

Vertical sounding at icheon and jeju

Oblique sounding between Korea to China

Oblique sounding between Korea to Japan

TEC & scintillation monitor × 5

Operating System for Ionosphere Observation – DIGISONDE

Jeju(’09~)

Icheon(’10~)

DIGISONDE SYSTEM(DPS-4D)

Vertical sounding at Icheon and Jeju since 2009.

Started oblique sounding for KSWC – IGGCAS(China) in September 2016.

now : BJ, WH <=> IC, JJ future : BJ, WH, MH, SY <=> IC, JJ

The purpose of oblique sounding is observing ionosphere of west sea.

MH

BJ

WH

SY

IC

JJ

BEIJING->ICHEON BEIJING->JEJU

Operating System for Ionosphere Observation – DIGISONDE

ACE

Operating System for Ionosphere Observation – VIPIR

VIPIR SYSTEM

started oblique sounding for KSWC-NICT(Japan) in september 2016.

=> NICT – transmit(4 site), KSWC – receive(2 site)

The purpose of oblique sounding is observing ionosphere of east sea.

ICHEON

JEJU

WAKANAI

KOKUBUNJI

YAMAGAWA

OKINAWA

Wakanai → Icheon

Operating System for Ionosphere Observation – VIPIR

Kokubunji → Icheon

Yamagawa → Icheon

Operating System for Ionosphere Observation – VIPIR

Okinawa → Icheon

GNSS receivers installed at 5 sites for observation of ionosphere scintillation.

Analyze L1&L2 cno, TEC, σ, S4

40min

Operating System for Ionosphere Observation – GNSS

40min

HF MODEL

GNSS MODEL

Real-time usable HF frequency for military, airline, ships

Data assimilated by IRI model

Real-time positioning error for military, ships, land survey

Tailored MODEL

Use 60 GNSS stations in korea

HF model uses real-time digisonde data and be assimilated by IRI model.

It provides usable HF frequency for military, airlines, ships.

40min

MILITARY AIRLINES SHIPS

#1

#2

#3

Tailored MODEL – HF MODEL

GNSS model collects 60 stations data and analyzes each of stations data.

It analyzes observation numbers, multi-pass, cycle-slip, positioning error,..etc

This model is mainly used by military, ships, land survey company.

Tailored MODEL – GNSS MODEL

40min

Observation number

East/North/Up positioning error

cycle-slipMulti-pass

KOREA GNSS STATIONS

DATA SERVICE- www.spaceweather.go.kr

Develop ionosphere forecasting model(2016~2018)

Data merge – DIGISODE + GNSS + SATELLITE

Model integration – Empirical model + Numerical model

40min

Future Plan

Analyze of Ionosphere TID (2017~2018)

Analyze TID using GNSS data and DIGISONDE data

Jun-Chul Mun ([email protected])