Software
GEMS Application Tool (GEMSAT)
■ Overview
GEMSAT is an intuitive software that provides specialized and dedicated functionality of plotting, visualizing, and analyzing space-based air quality data so that users can easily leverage satellite measurements to meet their specific needs.

An application for dealing with remote-sensing data from GEMS and other satellites
- - A wide range of functionality (visualization/editing/analysis) for utilizing satellite data
- - Rigorous & comparative analysis of space-based air quality measurements
- - Able to save the results (image/data) of visualization and editing
Expertise not required
- - An easy-to-use user interface for non-experts
- - Stand-alone SW for research/education that runs on a desktop computer
- - Operational on Windows and Linux
Main features
■ Official Release of GEMSAT (Lite/Standard/Expert versions)
Lite
Basic functions(Display / control)
Standard
Lite + Editing(image editing / composition)
Expert
Standard + Analysis(image comparison, measurements, etc.)
| Division | Key Features Screen | Details | Version | ||
|---|---|---|---|---|---|
| Lite | Standard | Expert | |||
| Basic Functions |
|
Data collection | O | O | O |
| Image display and control | O | O | O | ||
| Synchronization | O | O | O | ||
| Navigation | O | O | O | ||
| Area of interest | O | O | O | ||
|
Layer management | O | O | O | |
| Colormap edit | O | O | O | ||
| Color edit | O | O | O | ||
| Overlay auxiliary information | O | O | O | ||
| Data storage | O | O | O | ||
| Edit Functions |
|
Cloud masking | O | O | |
| Zenith angle masking | O | O | |||
| Quality flag masking | O | O | |||
| Change map projection | O | O | O | ||
| Edit data | O | O | |||
|
Filter processing | O | O | ||
| Operation processing | O | O | |||
| RGB Composite processing | O | O | |||
| Merge processing | O | O | |||
| Mean field processing | O | ||||
| Survey Analysis |
|
Survey analysis | O | O | O |
| Precision analysis | O | O | |||
| Comparative analysis | O | O | |||
| Time series analysis | O | O | |||
| Timelapse | O | O | O | ||
|
Vertical analysis | O | O | ||
| Contour analysis | O | O | |||
| Macro | O | O | |||
| Python analysis | O | ||||
| API | O | O | O | ||
Software
- ■ Program
- - GEMSAT (Lite) : GEMSAT_v120_Lite.zip
- - GEMSAT (Standard) : GEMSAT_v120_Standard.zip
- - GEMSAT (Expert) : GEMSAT_v120_Expert.zip
- - GEMSAT (Linux) : GEMSAT_v110(linux).zip
- ■ Explanation
- - GEMSAT Manual (Lite) : Manual_v120_ENG_LITE.pdf
- - GEMSAT Manual (Standard) : : Manual_v120_ENG_STANDARD.pdf
- - GEMSAT Manual (Expert) : Manual_v120_ENG_EXPERT.pdf
- - GEMSAT Manual (Linux) : Manual_v110_ENG.pdf
Documentation
- - GK2B : https://nesc.nier.go.kr/en/html/cntnts/73/satellite/introduction.do
- - GEMS Introduction : https://nesc.nier.go.kr/en/html/cntnts/72/satellite/payload.do
- - GEMS Products : https://nesc.nier.go.kr/en/html/cntnts/59/outputs/overview.do
- - GEMS Operation : https://nesc.nier.go.kr/en/html/satellite/operation.do
- - How to Access GEMS Data : https://nesc.nier.go.kr/en/html/cntnts/91/static/page.do
- - Open-API Introduction : https://nesc.nier.go.kr/en/html/svc/openapi/explain.do
- - ATBDs (L2 products): https://nesc.nier.go.kr/en/html/satellite/doc/doc.do
■ See also: