ABSTRACT

Introduction .................................................................................................................................... 316 Why Inventory and Monitor Great Lakes Coastal Wetlands? ........................................................ 318 Remote Sensing of Great Lakes Wetlands ..................................................................................... 320 Case Study 1: Mapping an Invasive Species Using Synthetic Aperture Radar.............................. 321

Introduction ............................................................................................................................... 321 Mapping Methods ..................................................................................................................... 321 Results for Case Study 1 ........................................................................................................... 324 Use of Data for Management and Decision Support ................................................................ 326

Case Study 2: Mapping Coastal Wetlands Using a Hybrid Radar/Multispectral Approach .......... 327 Introduction ............................................................................................................................... 327 Mapping Approach .................................................................................................................... 327 Case Study 2: Summary and Signicance ................................................................................ 328

Case Study 3: Forested Wetland Mapping with SAR .................................................................... 329 Introduction ............................................................................................................................... 329 Methodology ............................................................................................................................. 331 Case Study 3: Results ................................................................................................................ 333 Summary and Next Steps .......................................................................................................... 335

Case Study 4: Advanced Multisensor Approach for Updating NWI in Minnesota ....................... 336 Introduction ............................................................................................................................... 336 Improved Data Sources and Software ....................................................................................... 337 Mapping Methodology for NWI Updates ................................................................................. 337

Image Segmentation ............................................................................................................. 337 Field Training Data ............................................................................................................... 339 Potential NWI Computer-Generated Classication Process ................................................ 339 Photo Interpretation: Object Editing/Manual Delineation ...................................................340