Exegesis were contracted to establish whether aerial imagery from UAVs could be used to investigate the spatial and temporal extent of bait digging at selected sites in Wales.

Exegesis was contracted to establish vegetation monitoring at a saltmarsh coastal realignment site. This required the collection of high resolution aerial imagery, quadrat based vegetation survey, mapping in GIS and production of a detailed report.

Exegesis undertook an aerial survey of a site and orthorectified and mosaicked the imagery to create a single image. We also generate a digital surface model, which was compared against lidar data to give the change in height. We then determined the volume of additional material within patches identified from the aerial photography.