With this blog I intend to share GIS, remote sensing, and spatial analysis tips, experiences, and techniques with others. Most of my work is in the field of Landscape Ecology, so there is a focus on ecological applications. Postings include tips and suggestions for data processing and day-to-day GIS tasks, links to my GIS tools and approaches, and links to scientific papers that I've been involved in.
Friday, August 12, 2016
Cheatgrass die-offs the movie
Our lab has been working on accurately mapping a phenomenon known as cheatgrass die-off. Although the exact mechanism responsible for a cheatgrass die-off is still being figured out it is thought that a combination of a fungal pathogen along with certain weather conditions and litter accumulation are responsible for creating these stand failure events. We've been using Landsat to map 35 years of cheatgrass die-off in the Winnemucca area of Nevada. We plan to publish our results in a forthcoming journal article very soon, but in the mean time we have added a link to a movie file (AVI) showing cheatgrass die-off by year. Sit back and enjoy.