Scope
Algorithm updates, validation, inter-satellite harmonisation, applications, AI-based retrievals.
17th GEMS Workshop
D-…
GEMS · TEMPO · Sentinel · Pandora
Observing Air Quality from Space, Together.
The 17th International GEMS Workshop convenes the global atmospheric remote-sensing community in Seoul.
About the Workshop
A decade of GEMS — and the geostationary constellation era.
Since the launch of GEMS in 2020, geostationary air-quality monitoring has reshaped how we observe atmospheric pollutants over Asia.
Event
The 17th International GEMS Workshop
Dates
Wed 9 — Fri 11 September 2026
Venue
RYSE, Autograph Collection (Seoul, ROK)
Participants
~100 attendees · 20+ overseas experts
Working language
English (Korean provided)
Host
Environmental Satellite Center, NIER
Who attends
~100 participants from research institutes, space agencies and academia worldwide.
Outcomes
Peer-reviewed proceedings, updated validation roadmap, bilateral discussions.
Program
Three days, eight sessions, one constellation.
A tentative draft based on the 16th workshop structure.
Day 1 · Opening & Keynote
Wed, 9 September 2026
13:00 – 13:30
Opening Remarks · Congratulatory Messages
NIER · ESA · NASA GSFC
13:30 – 14:30
Keynote Speech
GEMS — Achievements, Issues, and Beyond
15:00 – 17:00
Session 1 — Ozone and Precursors
Satellite-based monitoring of ozone, NO₂, VOCs.
ScienceDay 2 · Status of GEMS & Applications
Thu, 10 September 2026
09:00 – 10:30
Session 2 — GEMS Status (Ⅰ)
AI applications, INR, Level 0–1 calibration.
10:45 – 12:00
Session 3 — GEMS Status (Ⅱ)
Aerosol algorithm, NO₂ retrievals, AEH v3.0.
13:00 – 14:30
Session 4–5 — Applications
Diurnal NO₂, CTM-independent flux, NH₃-constrained simulations.
15:45 – 16:45
Poster Session & Coffee
On-site poster exhibition with e-Poster mirror.
PostersDay 3 · TEMPO, Validation & Closing
Fri, 11 September 2026
09:00 – 10:30
Session 7 — Status of TEMPO
TEMPO mission status, total ozone, NO₂ and HCHO products.
11:00 – 12:00
Session 8 — Validation
PAPGAPi, LEO/GEO harmonisation, airborne in-situ comparisons.
12:00 – 12:30
Closing Remarks & Group Photo
Wrap-up by NIER. Workshop adjourns.
ClosingKey dates
D-60
Site open · Registration begins
11 Jul 2026
D-45
Abstract submission opens
25 Jul 2026
D-21
Abstract submission closes
19 Aug 2026
D-14
Presentation / poster files due
26 Aug 2026
D-7
Programme confirmed · Registration closes
2 Sep 2026
D-day
Workshop opens
9 Sep 2026Venue & Travel
RYSE, Autograph Collection — Hongdae, Seoul.
A 5-star hotel in Seoul's creative district, 50 minutes from Incheon Airport.
Address
130 Yanghwa-ro, Mapo-gu, Seoul 04050, Republic of Korea
Getting here
- From Incheon (ICN) AREX Express → Hongik Univ. (43 min) → 5-min walk
- Subway Hongik Univ. Station (Line 2 · AREX), Exit 1
- By car Valet parking available.
Registration
Reserve your seat in Seoul.
Registration opens 60 days before the workshop.
Notice & FAQ
Stay informed.
Latest announcements and answers to common questions.
📌 Notice & FAQ
Save the dateNEW
The workshop will be held 9 – 11 September 2026.
Call for abstracts — opening 25 July
Oral and poster abstract submission will open 25 July 2026.
Travel & visa guidance
International participants requiring a visa invitation letter should select the corresponding option during registration.
❓ FAQ
No. The workshop is hosted by NIER and there is no registration fee.
Abstract submission closes on 19 August 2026.
In-person attendance is preferred.
Select the visa invitation option during registration.
For invited international experts only.
Yes — a banquet dinner is scheduled for Day 2.