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The 5th Asia/Oceania Meteorological Satellite Users’ Conference

The Current Status of GKThe Current Status of GK--2A 2A (GeoKOMPSAT(GeoKOMPSAT--2A) 2A)

Ground Segment Development & Ground Segment Development & Ground Segment Development & Ground Segment Development & Data Service Plan Data Service Plan

Nov. 2014Nov. 2014

HyunjongHyunjong Oh (Oh ([email protected]@korea.kr), research scientist), research scientistJaeDongJaeDong Jang, Jang, ByungByung--Il Lee, Il Lee, GwangJaeGwangJae Lee, Lee, JeongSikJeongSik Kim and Kim and HyukJinHyukJin YunYun

Satellite Operation DivisionSatellite Operation DivisionNational Meteorological Satellite CenterNational Meteorological Satellite Center

Korea Meteorological AdministrationKorea Meteorological Administration

Contents

1. Introduction of GK-2A

2. GK-2A Ground Segment Development(GSD)O tli f P j t- Outline of Project

- Concept of System Configuration- Systems Algorithm to Operation- Systems Algorithm to Operation

3. GK-2A Data Service Plan (Tentative)- Dissemination via Satellite and Landline

4 S4. Summary

1The 5th Asia/Oceania Meteorological Satellite Users’ Conference


National-Space-Development-Plan



Contents GK- 2A

GK-2A specification

Payload- Advanced Meteorological Imager (AMI)- Korean Space Environment Monitor (KSEM)

Spatial Resolution

O bit Dete mination andOrbit Determination and Prediction Accuracy

3km(using 2 ground stations)

Station Keeping Box

Mission Life Time 10 years

Image NavigationImage NavigationAccuracy

3 4 @ i i lif


Mass3.4 ton@mission life3.6 ton@full tank

2. GK-2A GSD : Backgrounds

GK 2ACOMS

To Provide Higher Meteorological Service Using Satellite

GK-2ALaunch Date : 2010.6 Comm. PayloadOcean Payload

Launch Date : 2018.5 Meteorological Payload

Resolution Up

COMS

yMeteorological Payload

- Resolution Up

Development of Ground Segment to Development of Ground Segment to Inherit the Mission of COMS andInherit the Mission of COMS and

Effective Operation of GEO Effective Operation of GEO Meteorological SatelliteMeteorological Satellite

2009.4

COMS Ground Segment GK-2A Ground Segment

2017.5

- Upgrade on Reception and Processing


Upgrade on Reception and Processing- Up-to-date IT Technology Adapted- Improve Data Service System

2. GK-2A GSD : MissionMission

Enhancing forecast/climate monitoring based on high resolution measurementsmeasurements

Generation of the baseline meteorological products , and application to hydrology, agriculture, disaster prevention etc.pp y gy, g , p

International Data Service via satellite broadcast system, LRIT/HRIT/UHRIT and via landline by website, FTP etc.

Supporting satellite operation with space weather monitoring

5

2. GK-2A GSD Project : Outline Project Scope

(A) Develop data acquisition(antenna, RF), image processing system(B) Develop Level 2 2+ products algorithms(B) Develop Level 2 , 2+ products algorithms (C) Develop integrated analysis and application system(D) Develop meteorological/space-weather data processing system(E) Establish satellite control system (developing by KARI )(F) Develop data management and service system(G) Integration test & In-orbit GS test(G) Integration test & In orbit GS test

GS Operation Concept6

2. GK-2A GSD Project : Strategies F f l j t For successful project

- Fully utilize the heritage and lessons of COMS project

D l t f d (COMS) > li ti / i f d: Development focused (COMS) -> application/service focused development with user readiness activities (GK-2A)

- Domestic cooperation with public/private sectors linked with this p p /pproject

- International cooperation to share the related information and techniquestechniques

* The 1st international GK-2A user conference will be held in second half of 2015

For stable GK-2A operation- Site diversity for satellite operation & data broadcast (NMSC<->KARI)

- Dual operation systems for hot-backup in NMSC

R t b k f d t t- Remote back-up of data storage

- Enhance the system of Research to Operation (R2O) with test bed & off-line simulator

7

2. GK-2A GSD : Configuration

MSGS LRIT/HRIT/UHRIT

RFRF RFRF

(at NMSC)

RF RFRF RF

BBBB BBBB

Command/Telemetry

BB BBBB BBCommon Test Bed

Satellite Control

LRIT/HRIT/UHRITLRIT/HRIT/UHRIT

Reception and Processing Reception and Processing

Off-line Simulator

Algorithm Optimization

RF/BBDB DB

Pre-processing

Level 1A/1B Level 1A/1B

Raw DataRaw DataPre-processing

GS System StabilizationProcessing/Analysis

Level 2/3Level 2/3

Processing/Analysis

Data Mgmt. and Service Data Mgmt. and Service(TBD)Foreign Sat.

Foreign Satellite Data

Level 0/1A/1B/2/3, Foreign Satellite DataLevel 1B

Level 0/1A/1B/2/3


Users

Preliminary version

2. GK-2A GSD : Meteorological products (52)

Scene & Surface Analysis (13)

Cloud & Precipitation (14)

Aerosol & Radiation (14)

Atmospheric condition & Aviation (11)

Cloud detection Cloud Top Temperature Aerosol Detection Atmospheric Motion Vector

Snow Cover Cloud Top Pressure Aerosol Optical Depth Vertical Temperature Profile

Sea Ice Cover Cloud Top Height Asian Dust Detection Vertical Moisture Profile

Fog Cloud Type Asian Dust Optical Depth Stability Index

Sea Surface Temperature Cloud Phase Aerosol Particle Size Total Precipitable Water

Land Surface Temperature Cloud AmountVolcanic Ash Detection and Height

Tropopause Folding Turbulence

Surface Emissivity Cloud Optical Depth Visibility Total OzoneSurface Emissivity Cloud Optical Depth Visibility Total Ozone

Surface Albedo Cloud Effective Radius Radiances SO2 Detection

Fire Detection Cloud Liquid Water PathDownward SW Radiation (SFC)

Convective Initiation

Vegetation Index Cloud Ice Water PathReflected SW Radiation (TOA)

Overshooting Top Detection

Vegetation Green Fraction Cloud Layer/HeightAbsorbed SW Radiation (SFC)

Aircraft Icing( )

Snow Depth Rainfall Rate Upward LW Radiation (TOA)

Current Rainfall PotentialDownward LW Radiation (SFC)

Probability of Rainfall Upward LW Radiation (SFC)

Products necessary for forecast and showing good performance will be operational 9

2. GK-2A GSD : analysis and application products (40)

Development of Integrated Analysis & Application FacilitiesDevelopment of Integrated Analysis & Application FacilitiesForecast support(21) Analysis support(19)Development of Integrated Analysis & Application FacilitiesDevelopment of Integrated Analysis & Application Facilitiespp y pp

Typhoon

Center position

Conceptualmodel

Objective analysis

Intensity & Central pressure Objective prediction

Max. wind speed & Radius of 15m/s WS Real-time analysis of severe weathermodel

Development & Weakening condition Typhoon conceptual model

Trajectory & Prediction ‘JANGMA’ conceptual model

Cloud analysis Wildfires analysis

Nowcasting Surface&Environmental

Precipitation analysis Drought analysis

Yellow dust analysis Flood analysis

Convective cloud analysis Heavy snow analysis

AnalysisSevere weather analysis Aerosol analysis

Aviation

Air-route cloud analysis Smog analysis

Turbulence analysis Fog analysis

i f i i l i i i l iAircraft icing analysis Time series analysis

Volcanic Ash analysis Spatial analysis

Marine

SST analysis Down-scaling analysis

Ocean current analysis Sat Data composition & analysisStatisticalAnalysis

MarineWeather

Ocean current analysis Sat. Data composition & analysis

Sea fog analysis Composition into uniform space-time grid

Sea ice analysis Data quality analysis

Predicted image products Data monitoring techNumerical WeatherPrediction

Predicted image products Data monitoring tech.

Error analysis of NWP input data

Forecast Sensitivity TestTool for integrated analysis and application will be developed and its standalone version will be open to users. 10

2. GK-2A GSD : Space weather data products (5) Korea Space Environment Monitor(KSEM)

Measurement of electron on mid energy range and magnetic fieldSupport forSupport for

Observation Products (5) 2A

Support for stable operation

of GEO-KOMPSAT-2A

Differential energy flux of electron and ion

- Real-time high energy particleof electron and ion energy particle distribution over the radiation belt

- 3D particle pdistribution /prediction

- Deep dielectric

Near Earth magnetic field

charging prediction index

- 2 Geomagnetic t i di

Satellite internal storm indicescharging current

11

2. GK-2A GSD: Systems for Research to Operation

* For smooth transition from research to operation, test bed and off-line simulator will be developed to make sure the scientific algorithms to be operational g p

* Algorithms will be installed after completion of optimization on test bed and verification on off-line simulator

Common Test BedAlgorithm Developers

S/W CodeS/W Code

…………….……….……………….…………….

. ……………….…………….

Off Line Simulator

OptimizationVerificationAlgorithms S/W Codes

Installation on Installation on …………….……….……………….……………..

Documentations

Off-Line SimulatorOperation SystemOperation System

Algorithm Stabilization and System Level Verification

12

2. GK-2A GSD : Milestone

Launch/IOT/OperationIntegrate Module

Satellite bus design and Review

Satellite system Satellite system integration

launch / IOT

PrepareTo

launch

Analysis of system

requirements

Satelliteoperation

Preliminarydesign Critical design

Instrument Integration

and test

System Integration

and test

Operation/utilization /service

StartEQSR/CDR

LaunchLaunchSRR PDR TRR

Environmental Test Delivery

/service

Preliminarydesign

Criticaldesign

Implementation/verification In Orbit Test Integration test

/OptimizationRequirementKick-off (Jul. 2014)

qAnalysis

Phase 1System Design/Algorithm Dev.

Implementation/Phase 2

Implementation/Verification

Phase 3Integration Test/

IOT of GS

13

3. GK-2A Data Service Plan : Via Satellite

• Broadcast all 16 channels data(UHRIT) of GK-2A meteorological observations within 3 minutes(to be confirmed) from image acquisition.

• Maintain L/HRIT broadcast corresponding to COMS five channelsp g- Develop the functions to generate COMS-like L/HRIT image data from GK-2A obs.- KMA will provide technical info. on receiving GK-2A L/HRIT for COMS S/MDUSs

• GOCI-II on GK-2B data will be broadcast by GK-2A HRIT (under consideration)

GK-2A (TBD) COMS -> GK-2A

Ult HRIT HRIT LRIT

GOCI II on GK 2B data will be broadcast by GK 2A HRIT (under consideration)*GOCI : Geostationary Ocean Color Imager

Ultra HRIT HRIT LRIT

Data Rate< 31 Mbps

uplink : S-bandD li k X b d

3 Mbps ~512 KbpsDownlink : X-band

Image Image(VIS, IR1, IR2, SWIR, WV)l h iData Type

To Be Determined

(VIS, IR1, IR2, SWIR, WV)Alpha-numeric textEncryption Key Message

Alpha-numeric textEncryption Key MessageLevel 2 Data (Cloud Info.)GOCI Image file

Obs. Mode FD, ENH FD, ENH

User MDUS SDUS 14

3. GK-2A Data Service Plan: Via Landline (DCPC-NMSC)

NMSC accomplished the construction of DCPC- NMSC and started normal operation on 29th March 2013 for providing COMS MI data as below list

- All five channels of COMS level 1B in binary and graphic file format- 10 level 2 products in binary and graphic file format(1) Cloud detection(1) Cloud detection(2) Land surface temperature(3) Total precipitable water(4) Cloud analysis

l d h i h(cloud top temperature/pressure/height, cloud type, cloud amount, cloud phase, cloud optical thickness)

(5) Fog(5) Fog(6) Rainfall Intensity(7) Atmospheric motion vector(8) Sea surface temperature(9) S i / d i(9) Sea ice/snow cover detection(10) Outgoing longwave radiance


http://dcpc.nmsc.kma.go.kr

3. GK-2A Data Service Plan: Via Landline (Website)

• Currently, NMSC provides COMS level 1B data of all five channels and level 2 products to users by posting the processed data on NMSC website (membership is needed)website (membership is needed)

• Upgraded & more user-friendly web-based system will be established for GK-2A data service

Products Resolution Period Start Date of Service

Cloud analysis (cloud type, phase and amount) 4 km 15 min.

Cloud top pressure/temperature/height 4 km 15 min

COMS Lv2 data list open to users

1 Apr. 2011(CTP/CTT/CTH) 4 km 15 min.

Atmospheric Motion Vector (AMV) 64 km 1 hour

Cloud detection (CD) 4 km 15 min.Fog (FOG) 4 km 15 min.Aerosol index (AI) 4 km 15 min.( )

Sea surface temperature (SST) 4 km 1-, 5-, 10-day composition

10 Aug. 2011Rain intensity (RI) 4 km 15 min.

Outgoing longwave radiation (OLR) 4 km 1 day

Upper tropospheric humidity (UTH) 36 km 15 min.

Land Surface Temperature(LST) 4 km 15 min.

10 Feb. 2012Snow and Sea Ice (SSI) 4 km 1 day/8 day

10 Feb. 2012Total Precipitation (TP) 4 km 15 min.

Clear Sky Radiance (CSR) 28 km 15 min.

http://nmsc.kma.go.kr/jsp/eng/contents/main/main.jsp

4. Summary

NMSC will establish the GK-2A ground segment 1 year before the g g ylaunch of GK-2A(May, 2018) and carry on integrated test for smooth transition to normal operation

All 16 channels data of GK-2A AMI will be broadcast via GK-2A within 3 minutes(TBC) after an image acquisition completion.

Maintain COMS L/HRIT service with corresponding 5 channels data of GK-2A

GK-2A user conference will be held annually (or 6-quarterly, TBC) to get users’ opinions and reflect them to GK-2A ground segment g p g gdevelopment projects such as user service system.


Th k Y !!!Thank You !!!

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