Preflight a Stream acquisition group without creating terrain products

Preflight a Stream acquisition group without creating terrain products

preflight_stream_dem(context, selection, group, stream_id, sources)

Arguments

context

Current Study Area context GeoPackage.

selection

Current Survey Collection selection GeoPackage.

group

Reviewed acquisition-group GeoPackage.

stream_id

One Stream in the group.

sources

Data frame with candidate_key, selection_path and attempt, one row for every group member. Missing saved selections/attempts may be NA.

Value

Read-only report with grid estimates, per-source screening, receipt observations, input hashes and software versions. No processing approval.

Details

Uses the fixed zero anchor and saved Event spacing. Byte estimates are uncompressed single-layer payloads, excluding overhead, intermediates and free-space checks. No raster values, masks or output files are allocated. Hash verification reads original source bytes. Full pixel readability, observed coverage and vertical operations remain unqualified.