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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Mapping the Nisqually River Delta Using Topobathymetric LiDAR, Aerial Imagery, and Mobile GIS |
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Mapping the Nisqually River Delta Using Topobathymetric LiDAR, Aerial Imagery, and Mobile GIS (Number of pages: 9) (Publication Size: 977KB)
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| Author(s) | McMillan, B. and A. Stohr, Information Technology Services Office | ||||
| Description | The marine shoreline surrounding the Nisqually River Delta has changed dramatically since the removal of the Brown Farm dike in 2009. After over 100 years of closing off tidal flow to the interior delta, the dike was removed, inundating 762 acres of the Nisqually Wildlife Refuge with estuarine waters. The Department of Ecology updated the National Hydrography Dataset (NHD) to reflect current conditions using a combination of topobathymetric LiDAR, aerial imagery, and mobile GIS using Esri’s Collector for ArcGIS. This paper describes the methodology used in updating the NHD hydrography for the Nisqually Delta, based on the Mean Higher High Water tidal datum. See related link under Web Page below. Other related websites are listed on the 2nd page of the pdf. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Brad McMillan at 360-407-6047 or bram461@ecy.wa.gov | ||||
| Keywords | coastline, LiDAR, marine shoreline, Nisqually Wildlife Refuge, tidal datum, MHHW, MHW, topobathymetric, mobile GIS, Collector, DEM, elevation, GIS, Nisqually River, estuary | ||||
| WEB PAGE | GIS – National Hydrgraphy Dataset for Washington state |
Copyright © Washington State Department of Ecology. See https://ecology.wa.gov/About-us/Accountability-transparency/Our-website/Copyright-information.
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