Going Digital: Air Photo Interpretation for Geotechnical Investigations
Air Photo Interpretation (API) is a critical component of understanding sites yet it is my observation that this is seldom done in many of the residential geotechnical reports I get to see in my role within the Tasmanian Government. The availability of aerial photographs has never been easier as Land Tasmania (and presumably other jurisdictions) has recently completed a major project by scanning their entire collection dating back to the 1940s. These photos can be searched online (from theLIST website) and able to be delivered in digital form to one's desktop. Until recently this used to incur a fee of around $50 per image but recently (2022) these photos are now free. There are probably several reasons why API is not being done (I will avoid the politics) but I am going to provide a low cost and efficient solution for working with digital images in stereovision that may represent one of the greatest obstacle for practitioners. The traditional method of viewing aerial pho...