Date Public Conveners Scientific organizing committee/
Copernicus Meetings
12 Jan–04 Mar 2026 Call-for-sessions: public can suggest sessions in the various Programme Groups. Community
05–18 Mar 2026 Session programme finalization based on the call-for-sessions suggestions. SOC
05–15 Mar 2026 Co-organization requests between Programme Groups for session programme finalization. SOC
25 Mar 2026 Call-for-abstracts, start of the abstract submission Community
13 May 2026, 13:00 CEST Abstract submission deadline Community
14–27 May 2026 Convener Part 1 + 2 (SOI + II)
Convener Part 1: acceptance, rejection, transfer of abstracts to other session (no oral/poster selection at this stage), additional upload of abstracts by conveners are possible.
Convener Part 2: Session Tagging, i.e. conveners communicate on no-overlap requests etc. to SOC		 Conveners
28 May–02 Jun 2026 SOC Part 1 (PCI): evaluation of rejected and unassigned contributions, finalization of sessions that have not completed Convener Part 1 task (SOI), session mergers should be processed through this tool. SOC
03 Jun 2026 Letter of acceptance email (information to authors if their abstract is accepted and in which session, no information about the oral or poster decision), acceptance subject to presenter registration. Copernicus
04–11 Jun 2026 PCII (SOC Part 2): assigning of time blocks, rooms, days and exact session times to each session on the basis of convener requests and consistency for the programme. SOC
12 Jun 2026 Start of splinter meeting request form Community
12–24 Jun 2026 Convener Part 3 (SOIII): oral/poster selection (according to the assigned timeblocks), ordering of presentations, indication of potential invited keynote presenters by Conveners. Conveners
Mid-June Start of registration Community
25–30 Jun 2026 PCIII (SOC Part 3): finalization of programme SOC
02 Jul 2026 Letter of schedule email (information to authors with precise details regarding session, time and length of presentation, etc.).
Upload of conference programme on website.		 Copernicus
30 Jul 2026 Deadline for presenter registration Authors
30 Jul 2026 Early registration deadline Community
30 Jul 2026 Deadline for conference registration with bank transfer payment Community
14 Aug 2026 Deadline for signing up to Outstanding Poster Contest (OPC) Authors
14 Aug 2026 Deadline for daily programme Conveners
02 Sep 2026 Deadline poster upload for OPC Community
06–11 Sep 2026 EPSC2026 Community
12 Jan–04 Mar 2026
Public: Call-for-sessions: public can suggest sessions in the various Programme Groups.
Conveners: Community
12 Jan–04 Mar 2026
: Call-for-sessions: public can suggest sessions in the various Programme Groups.
: Community
05–18 Mar 2026
Public: Session programme finalization based on the call-for-sessions suggestions.
Conveners: SOC
05–18 Mar 2026
: Session programme finalization based on the call-for-sessions suggestions.
: SOC
05–15 Mar 2026
Public: Co-organization requests between Programme Groups for session programme finalization.
Conveners: SOC
05–15 Mar 2026
: Co-organization requests between Programme Groups for session programme finalization.
: SOC
25 Mar 2026
Public: Call-for-abstracts, start of the abstract submission
Conveners: Community
25 Mar 2026
: Call-for-abstracts, start of the abstract submission
: Community
13 May 2026, 13:00 CEST
Public: Abstract submission deadline
Conveners: Community
13 May 2026, 13:00 CEST
: Abstract submission deadline
: Community
14–27 May 2026
Public: Convener Part 1 + 2 (SOI + II)
Convener Part 1: acceptance, rejection, transfer of abstracts to other session (no oral/poster selection at this stage), additional upload of abstracts by conveners are possible.
Convener Part 2: Session Tagging, i.e. conveners communicate on no-overlap requests etc. to SOC
Conveners: Conveners
14–27 May 2026
: Convener Part 1 + 2 (SOI + II)
Convener Part 1: acceptance, rejection, transfer of abstracts to other session (no oral/poster selection at this stage), additional upload of abstracts by conveners are possible.
Convener Part 2: Session Tagging, i.e. conveners communicate on no-overlap requests etc. to SOC
: Conveners
28 May–02 Jun 2026
Public: SOC Part 1 (PCI): evaluation of rejected and unassigned contributions, finalization of sessions that have not completed Convener Part 1 task (SOI), session mergers should be processed through this tool.
Conveners: SOC
28 May–02 Jun 2026
: SOC Part 1 (PCI): evaluation of rejected and unassigned contributions, finalization of sessions that have not completed Convener Part 1 task (SOI), session mergers should be processed through this tool.
: SOC
03 Jun 2026
Public: Letter of acceptance email (information to authors if their abstract is accepted and in which session, no information about the oral or poster decision), acceptance subject to presenter registration.
Conveners: Copernicus
03 Jun 2026
: Letter of acceptance email (information to authors if their abstract is accepted and in which session, no information about the oral or poster decision), acceptance subject to presenter registration.
: Copernicus
04–11 Jun 2026
Public: PCII (SOC Part 2): assigning of time blocks, rooms, days and exact session times to each session on the basis of convener requests and consistency for the programme.
Conveners: SOC
04–11 Jun 2026
: PCII (SOC Part 2): assigning of time blocks, rooms, days and exact session times to each session on the basis of convener requests and consistency for the programme.
: SOC
12 Jun 2026
Public: Start of splinter meeting request form
Conveners: Community
12 Jun 2026
: Start of splinter meeting request form
: Community
12–24 Jun 2026
Public: Convener Part 3 (SOIII): oral/poster selection (according to the assigned timeblocks), ordering of presentations, indication of potential invited keynote presenters by Conveners.
Conveners: Conveners
12–24 Jun 2026
: Convener Part 3 (SOIII): oral/poster selection (according to the assigned timeblocks), ordering of presentations, indication of potential invited keynote presenters by Conveners.
: Conveners
Mid-June
Public: Start of registration
Conveners: Community
Mid-June
: Start of registration
: Community
25–30 Jun 2026
Public: PCIII (SOC Part 3): finalization of programme
Conveners: SOC
25–30 Jun 2026
: PCIII (SOC Part 3): finalization of programme
: SOC
02 Jul 2026
Public: Letter of schedule email (information to authors with precise details regarding session, time and length of presentation, etc.).
Upload of conference programme on website.
Conveners: Copernicus
02 Jul 2026
: Letter of schedule email (information to authors with precise details regarding session, time and length of presentation, etc.).
Upload of conference programme on website.
: Copernicus
30 Jul 2026
Public: Deadline for presenter registration
Conveners: Authors
30 Jul 2026
: Deadline for presenter registration
: Authors
30 Jul 2026
Public: Early registration deadline
Conveners: Community
30 Jul 2026
: Early registration deadline
: Community
30 Jul 2026
Public: Deadline for conference registration with bank transfer payment
Conveners: Community
30 Jul 2026
: Deadline for conference registration with bank transfer payment
: Community
14 Aug 2026
Public: Deadline for signing up to Outstanding Poster Contest (OPC)
Conveners: Authors
14 Aug 2026
: Deadline for signing up to Outstanding Poster Contest (OPC)
: Authors
14 Aug 2026
Public: Deadline for daily programme
Conveners: Conveners
14 Aug 2026
: Deadline for daily programme
: Conveners
02 Sep 2026
Public: Deadline poster upload for OPC
Conveners: Community
02 Sep 2026
: Deadline poster upload for OPC
: Community
06–11 Sep 2026
Public: EPSC2026
Conveners: Community
06–11 Sep 2026
: EPSC2026
: Community