Entries will be narrowed down to a shortlist by a WMO panel of experts in meteorology and hydrology as well as experienced professional photographers. Entries will be judged on:
- Technical quality, clarity, and composition
- Visual impact
- Novelty and flair for the unexpected
WMO will make an initial selection of about 50 photographs, based on technical and artistic merit. We will then publish shortlisted photos on Facebook and Instagram, allowing our followers to vote for their favourites. The competition will also be promoted via Twitter and via other U.N. social media accounts.
The WMO jury will have the final say on the 13 photos for inclusion in the calendar (one for the cover and one for each month), based on the social media votes but also taking into account geographical balance.
All shortlisted photographs will be showcased on WMO web and social media channels. It is therefore important that you include your own social media handles so that we can credit you appropriately.