Today was all about aerial photography which is constituting a part of the documentation at our site using 3D modelling and photogrammetry. Photogrammetry is a process that produces spatially accurate images from ordinary photographs – with these images being georectified we can produce photographic plans of our site and its stratigraphy and take accurate measurements directly from the photo (!). This method is substantially improving the archaeological documentation during excavations and seems by far the best choice for recording topographical data at an archaeological excavation 😉 I am fortunate that archaeologists at the Uppsala University in Sweden are currently developing the method for practical uses in the field and both professor Frands Herschend and dr. Daniel Löwenborg from Uppsala are on a voluntary basis involved in my project. Today’s photo-shoot using a drone was aimed at creating so-called background to all the other data we are collecting at the site.
As expected, we also established that the part of the trench 1 that was soaked yesterday meant archaeological features in that part being much better perceived today than the features in the dry part of the trench. Not to mention how much easier it is to dig when the soil is damp. Obtaining and combining a number of hoses into one 125 meters long hose and connecting it to the tap by the churchyard we have now a method to spray the trenches whenever there is a need instead of carrying buckets with water.