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01. Development of GK-2A (GEO-KOMPSAT-2A)

In comparison with COMS(COMMUNICATION, OCEAN AND METEOROLOGICAL SATELLITE), the GK-2A launched on December 5, 2018 is available for diverse observations owing to its 16 channels from previous 5 channels. In total, 52 types of meteorological products will be made based on this. GK-2A is available for observing the entire sectors in 10-minute interval and this makes speedier monitoring of severe weather phenomena for reducing meteorological disaster. In addition, high performance meteorological sensor (AMI) provides more precise observation. Korean developed space environment monitor strengthened our capabilities of space weather observation.

Compared performances

Performance comparison between COMS and GEO-KOMPSAT-2A
Number of Channels Spatial Resolution(km) Observation Cycle(times/hour)
COMS
GK-2A

16

0.5-1(Vis), 2(IR)

24

Compared performances

Compared performances
Meteorological product count Data transmitting rate (Mbps) Design lifespan (Year)
COMS
GK-2A

52

60

10

02. Ground station development

National Meteorological Satellite Center has developed the ground stations to receive, process and serve the observation data from GK-2A since 2013. Multiple back-up systems serve the non-interrupted data in real-time and the established remote storing system preserves the data.

03. Meteorological products of GK-2A

52 types of meteorological products developed by National Meteorological Satellite Center are categorized into 23 basic products and 29 side products. The description on specific algorithm of the products will be provided on the homepage.

04. Technology development

We have been developing the technologies with the data transmitted from GK-2A to use in various fields such as numerical model, typhoon/ocean, weather and environment surveillance.

05. Ground broadcasting service of GK-2A

We have established high performance system to process the huge data from GK2A. By means of the satellite mounted broadcasting function, huge real-time processed data, all channel data in original resolution (Ultra high rate information transmission, UHRIT), channel data same with that of COMS (High rate information transmission, HRIT) and the offshore meteorological information (Low rate information transmission, LRIT) for ships will be transmitted to the users in East Asia.

06. WEB based satellite data service

We plan to provide information in various fields to the users through WEB, OpenAPI, FTP, DCPC.

07. Expected effects

The use of GK-2A has expected effects in various fields such as improvement in weather forecast accuracy and acquiring the global competitiveness


08. GK2A Sample Data

[Version 2019-04-15] day

GK2A Sample Data
File Name File Type(zip) File Size
GK2A First Image DATA nc 1.3 GBytes [download]
SRF zip 402 KBytes [download]
GK-2A calibration_table TXT 1.2 MBytes [download]
Sample_code(Python) py 2 KBytes [download]
sample_code_description PDF 47 KBytes [download]

[Version 2020-02-20]

GK2A Sample Data
File Name File Type File Size
20190415_GK-2A AMI Conversion Table_v3.0 xlsx 3.60MB GK-2A AMI Conversion Table [download]
20190415_conversion_table_v3 zip 1.31MB GK-2A Conversion table for sample code [download]
20190524_gk2a_level_1b_data_user_manual pdf 1.37MB GK-2A Level 1B data user manual [download]
20190516_sample_code2 py 8.70KB GK-2A Level 1B data processing sample code2(python) [download]
20190516_sample_code2_description PDF 69.1KB GK-2A Level 1B data processing sample code(python) description [download]
20190509_sample_code_ifort f90 9.39KB GK-2A Level 1B data processing sample code(fortran) [download]
201905100300_gk2a_ami_level_1b_sample_data nc 1.16GB GK-2A Level 1B sample data(2019.05.10 03:00UTC) [download]
GK2A_SAT04_Linux_Center_20200220 tar.gz 117MB GK-2A User Customized Imagery Processing Tool and guidance(Linux) [download]
GK2A_SAT04_Win_Center_20200220 zip 86.9MB GK-2A User Customized Imagery Processing Tool and guidance(Windows) [download]