Filtering by: Creator Hambrecht, Keith R. Remove constraint Creator: Hambrecht, Keith R. Keyword Howard Slough Waterfowl Management Area Remove constraint Keyword: Howard Slough Waterfowl Management Area Keyword invasive species Remove constraint Keyword: invasive species Keyword multispectral imagery Remove constraint Keyword: multispectral imagery Keyword phragmites australis Remove constraint Keyword: phragmites australis