EHN member Dr Iain Stuart has found a useful resource for environmental historians who work (or would like to work) with remote sensing data, in the form of a series of instructional texts on earth observation with a focus on the environment. Released by the CRC for Spatial Information (CRCSI), they cover things like aerial images, satellite imagery, LIDAR etc. In particular, they offer an authoritative reference for techniques like satellite imagery which is often used to investigate environmental change. They may assist historians to understand what the techniques are before they use the information in their research. You can download the books free here: http://www.crcsi.com.au/earth-observation-series

Image: Spider Crater, Kimberley region, Western Australia, via NASA Earth Observatory