2014 Oregon Department of Geology and Mineral Industries (DOGAMI) Oregon Lidar DEM: Metro Portland, OR

The dataset encompasses 1221.6 square miles in portions of the greater Portland Metro area in the state of Oregon. The highest hit digital surface models (DSM) represent the earth's surface with all vegetation and human-made structures included. The highest hit DSMs were derived from lidar data using TIN processing of the all-return point cloud. The bare earth digital elevation model (DEM) represents the earth's surface with all vegetation and human-made structures removed. The bare earth DEMs were derived from lidar data using TIN processing of the ground point returns. The DSM and DEM grid cell size is 3 feet. The projection was originally Oregon Statewide Lambert Conformal Conic, units are in International Feet. The horizontal datum is NAD 83 (2011) and the vertical datum was NAVD88 (Geoid 12A). Some elevation values have been interpolated across areas in the models where there is no elevation data (e.g. over water, over dense vegetation). Watershed Sciences, Inc. collected the lidar and created this data set for the Oregon Department of Geology and Mineral Industries (DOGAMI). Watershed Sciences, Inc. collected the lidar and created this data set for the Oregon Department of Geology and Mineral Industries (DOGAMI). The vertical units were changed from feet to meters by NOAA for ingestion into the Digital Coast Data Access Viewer.

Data and Resources

Additional Info

Field Value
Last Updated October 4, 2017, 21:08
Created October 4, 2017, 21:08
access_constraints ["Use Constraints: Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, surveying, or site specific purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information.", "Access Constraints: None"]
bbox-east-long -121.794
bbox-north-lat 46.173
bbox-south-lat 45.199
bbox-west-long -123.779
contact-email jacob.edwards@oregon.gov
coupled-resource []
dataset-reference-date [{"type": "publication", "value": "2017-06-15"}]
frequency-of-update notPlanned
graphic-preview-description A polygon footprint of this data set.
graphic-preview-file https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/6377/supplemental/2014_metro_area.kmz
graphic-preview-type kmz
guid
licence ["\nAny conclusions drawn from the analysis of this information are not the responsibility of the Oregon Department of Geology and Mineral Industries (DOGAMI), the Office for Coastal Management or its partners. "]
metadata-date 2017-09-26
metadata-language
progress completed
resource-type dataset
responsible-party [{"name": "DOGAMI", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-123.779, 45.199], [-121.794, 45.199], [-121.794, 46.173], [-123.779, 46.173], [-123.779, 45.199]]]}
spatial-data-service-type
spatial-reference-system
spatial_harvester true
temporal-extent-begin 2014-07-09
temporal-extent-end 2014-09-07