Landsat-Based Monitoring of Landscape Dynamics at Pictured Rocks National Lakeshore, 2006–2011.

摘要

The Great Lakes Inventory and Monitoring Network (GLKN) implemented the long-term disturbance monitoring protocol at Pictured Rocks National Lakeshore (PIRO). Disturbances, or distinct changes in vegetation cover, are an important part of how this Great Lakes coastal system functions. Monitoring these disturbances through time will provide information regarding historic disturbance regimes compared to present and future conditions and trends. For this analysis, disturbances in and around PIRO were delineated for six years (2006–2011) using a combination of Landsat satellite imagery and high resolution aerial photos. We employed a set of computer algorithms, collectively known as LandTrendr, in conjunction with a dense time series of Landsat imagery (one midsummer composite image, yearly since 1984) to track vegetation changes in and around the park.