Digital Elevation Models for eight study areas in coastal Oregon and Washington, 2012

To assess the current topography of tidal marsh at the study sites we conducted survey-grade global positioning system (GPS) surveys between 2009 and 2014 using a Leica RX1200 Real Time Kinematic (RTK) rover (±1 cm horizontal, ±2 cm vertical accuracy; Leica Geosystems Inc., Norcross, GA; Figure 4). At sites with RTK GPS network coverage (Padilla, Port Susan, Nisqually, Siletz, Bull Island, and Bandon), rover positions were received in real time from the Leica Smartnet system via a CDMA modem (www.lecia-geosystems.com). At sites without network coverage (Skokomish, Grays Harbor, and Willapa), rover positions were received in real time from a Leica GS10 antenna base station via radio link. At sites where we used the...

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Bandon, Bull Island, Coos Bay, Grays Harbor, NWCASC, All tags... Nisqually, Northwest CASC, Oregon, Pacific Northwest, Padilla, Port Susan, Sea-Level Rise and Coasts, Siletz, Skokomish, Washington, Water, Coasts and Ice, Wetlands, Willapa, digital elevation model, salt marsh, Fewer tags