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

GK-2A launched on December 5, 2018, allows diverse observations with sixteen channels, in comparison with the 5 channels of the former COMS (Communication, Ocean and Meteorological Satellite). Based on this, 52 meteorological products have been created. The GK-2A is capable of the observations over the full disk at 10-minute interval providing a wealthy of information more speedily so to detect and prepare for adverse weather occurrences. GK-2A, equipped with the high-performance weather sensor (AMI) contributes to perform more accurate observations along with high-resolution color image, moreover, the independent development of the space meteorological payload made the national capabilities in the space meteorological observation area strengthened.

※ COMS Introduction [click]

02. Ground station development

The National Meteorological Satellite Center (NMSC) has developed ground stations to receive, process and serve the observation data from GK-2A ever since 2013. The multiple backup systems serve non-interrupted data in real-time, and the established remote storing system preserves the data.

03. Meteorological products of GK-2A

The 52 types of meteorological products developed by the National Meteorological Satellite Center (NMSC) consist of 23 basic and 29 side products. The description on specific algorithms of the products will be provided on the homepage.

04. Technology development

The NMSC develops and services the technologies with the data receiving from GK-2A to be used in various fields, such as numerical model, typhoon/ocean, weather and environment observation.

05. Ground broadcasting service of GK-2A

The NMSC has established the high performance system to process the enormous amount of data from GK-2A. Using the satellite broadcasting function onboard, the huge real-time processed data, all channel data in original resolution (Ultra high rate information transmission, UHRIT), channel data same as in COMS (High rate information transmission, HRIT) and offshore meteorological information (Low rate information transmission, LRIT) are disseminated to the users of oceans in East Asia.

06. WEB based satellite data service

The NMSC plans to provide information in various fields to the users through WEB, Open API, FTP, DCPC.

07. Expected effects

The use of GK-2A takes effects in various fields, involving the improvement in weather forecast accuracy, enhancing global competitiveness.

08. GK2A Sample Data

[Version 2020-02-20]

GK2A Sample Data
File Name File Type File Size
GK2A First Image DATA nc 1.3 GBytes [download]
SRF zip 402 KBytes [download]
Sample_code(Python) py 2 KBytes [download]
sample_code_description PDF 47 KBytes [download]
20191115_GK-2A AMI Calibration Table_v3.1 xlsx 3.60MB GK-2A AMI Conversion Table [download]
20190618_gk2a_level_1b_data_user_manual_eng 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]