Proximal sensing is the close-range, non-contact measurement of environmental, agricultural, and ecological systems — at distances short enough that atmospheric correction is not required and the observer controls the geometry.This site collects methods, workflows, and reflections on proximal sensing practice across disciplines. It exists because the field is expanding faster than its shared vocabulary and standards are keeping up.Content here is method-oriented, not news. The focus is on reproducibility, calibration, and making proximal sensing practice more transparent and comparable across domains.