The International Symposium on Equatorial Aeronomy (ISEA) is held once in every three to four years. Researchers from the fields of atmosphere, ionosphere and magnetosphere science come together in ISEA to share new results, discuss the current state-of-the-art, and identify promising topics for future research. The 17th International Symposium on Equatorial Aeronomy was held in Liberia, Costa Rica from February 9 to 13, 2026.
The venue for ISEA 17 was the University of Costa Rica – Guanacaste Campus (Sede de Guanacaste), located at Barrio El Capulín, Liberia, Guanacaste, Costa Rica, along National Route 21, just minutes south of downtown Liberia.
Google Maps: https://maps.app.goo.gl/8SobstnP3gRLuygp8
ISEA17 was followed by the United Nations/Costa Rica Workshop on Machine Learning applied to Space Weather and Global Navigation Satellite Systems in San José, Costa Rica between February 16-20, 2026 (https://www.unoosa.org/oosa/en/ourwork/psa/schedule/2026/united-nations-costa-rica-workshop-2026.html).
The Special Collection for ISEA 17 in Earth, Planets and Space is open for submission. Please submit your contribution until 31 December 2026 here:
https://link.springer.com/collections/fccahcbcga
Springer Nature offers waivers and discounts on Open Access publication fees for authors from reduced-income countries. You can find the full list of eligible countries here:
https://www.springernature.com/gp/open-science/policies/journal-policies/apc-waiver-countries
ISEA-18 will be held at Sanya, Hainan Province, P. R. China around November 2029.
Photograph: Participants of ISEA 17 in front of the lecture hall at Liberia Campus, University of Costa Rica, February 2026.
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Past ISEA events:
16 - 2022 - Kyoto, Japan
15 - 2018 - Ahmedabad, India
14 - 2015 - Bahir Dar, Ethiopia
13 - 2012 - Paracas, Peru
12 - 2008 - Crete, Greece
11 - 2005 - Taipei, Taiwan
10 - 2000 - Antalya, Turkey
09 - 1995 - Bali, Indonesia
08 - 1990 - Tukuman, Argentina
07 - 1984 - Hong Kong Hong Kong
06 - 1980 - Aguadilla, Puerto Rico, USA
05 - 1976 - Townshill, Australia
04 - 1972 - Ibadan, Nigeria
03 - 1969 - Ahmedabad, India
02 - 1965 - Rio de Janeiro, Brazil
01 - 1962 - Huaychulo, Peru
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