Reading path: Underwater images and evidence →
Protect files first
At the end of a field session, copy the memory card contents to a primary storage location and make a second backup before formatting or reusing the card. Keep original files intact, including metadata. Do not begin by deleting blurry or redundant photographs; a frame that seems unhelpful now may later provide context or resolve a sequence.
Use a simple folder structure that matches how you search: year, date, and site are practical starting points. For example, a folder might group one day’s images under a site name, with separate subfolders only when they make retrieval clearer. Keep the system consistent enough that another person can find a file without learning a private naming code.
Connect images with field records
Camera filenames often provide sequence numbers but not the full story. Preserve those names or record the mapping when renaming, then connect images to notebook entries with a frame number, timestamp, or batch identifier. A log can include date, site, depth, subject, identification confidence, and notable conditions.
For example, a notebook entry might say “frames 143–151: small drifting animal over sand, uncertain group; visibility reduced.” That record preserves uncertainty and helps locate the relevant photographs later. If multiple cameras are used, include a device or photographer code so that similar frame numbers cannot be confused.
Cull and edit with care
Once two copies exist and the records are linked, review images for focus, exposure, and usefulness. Keep the selection criteria understandable; do not keep only attractive frames if a less polished image captures an important observation. If you reject files, follow the project’s retention rules and avoid discarding originals that may be needed for verification.
Make edits on working copies and save them separately. Use consistent suffixes or folders for exported images, and record substantial color, contrast, retouching, or cropping changes when scientific interpretation could be affected. This keeps presentation versions from becoming confused with source files and makes the process easier to audit or repeat.
Check the archive as a whole
Before the next trip, confirm that both backups open and that the notebook links point to the files you expect. Periodically check storage health and copy the collection to updated media according to your organization’s practices. A backup that has never been checked is less reassuring than one whose files have been opened and verified.
A useful archive lets a future reader move from a caption to an image, from the image to its original, and from the original to field context. It need not be elaborate: consistent folders, preserved source files, and a dependable link to notes accomplish much. The workflow should be easy enough to repeat after a tiring day in the water, when small habits matter most.
Have a correction or a source to suggest? Send a note →