How to Include Crowd-Sourced Photogrammetry in a Geohazard Observatory - Case Study of the Giant's Causeway Coastal Cliffs. - Marion Jaud; Nicolas Le Dantec; Kieran Parker; Kirstin Lemon; Sylvain Lendre; Christophe Delacourt; Rui C. Gomes (Remote. Sens., 2022)