Repeat Photography using GigaPan Imagery in the San Simon Watershed, Arizona, USA

<p>Photographs are an important source of documentation supporting the management of western U.S. rangelands. High<br>resolution panoramic photography has the potential to vastly expand the value of photography in rangeland monitoring and<br>documentation. The immediate objective of this research is to test the GigaPan system for taking repeat photographs<br>supporting landscape change analyses. An initial test was conducted to relocate photo points in the San Simon Watershed in<br>Arizona where landscape photographs were taken in 1941. Coupled photo pairs from 1941 and 2010 are posted to the<br>GigaPan website where they can be annotated to incorporate both scientific interpretations and local knowledge. Work is<br>ongoing to quantify landscape and vegetation changes in the photographs. These changes will be interpreted in the context of<br>high seasonal and inter-annual variability identified in measured rainfall. Initial field work has successfully demonstrated the<br>use of GigaPan technology in landscape photography for documenting change</p>