ISO 19115 Topic CategoryelevationNoneCity of BellinghamUnited StatesWashingtonWhatcom CountyCOBLandCity of BellinghamCity of BellinghamBellingham, WA20081208http://www.cob.org/services/maps/index.aspxhttp://www.cob.orgContours is a line feature class which contains the City of Bellingham's elevation information. The contour interval is 5 feet.For determining elevations, relative and absolute of locations and geographic features within dataset extent. Can also be used for inferring slope angle, aspect, and land form shapes.Publication date20090224CompleteAs neededNone.None. Data are considered current to the date of the original source material. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata.-122.577458-122.37174348.83687248.683611COB Metadata ImplementationNo ConfidentialityStandard Technical ControlsCity of BellinghamPlanning GIS StaffPlanning GIS Staffmailing and physical address

210 Lottie St

BellinghamWA98225360-778-8300360 778-8302gishelp@cob.orghttp://www.cob.org/services/maps/index.aspxTests for integrity have not been performed.All contours are continuous lines (no gaps)Data were collected using methods that are accurate to within 1 meter (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 1). For more information, please see EPA's NGDP at http://epa.gov/geospatial/policies.html)0.5Photogrammetric aerotriangulation reportElevations are reported in elevation above sea level in feet based on the City of Bellingham datum. +/- 2.5 feet (0.76m) in areas where ground was visible on April 4, 2002. Accuracy in forested areas and other ground-obscured areas depend upon topographic variability, and interpretive work performed by photogrammetric technician when generating "form lines". (see processing steps)0.76Photogrammetric report for mass points and breaklines used as source data for contour generation.20081208Metadata created.2002Topographic mass points and breaklines generated by photogrammetric technicians at Triathlon Inc. under contract to City of Bellingham using ortho imagery acquired April 4, 2002. Mass points and breaklines defining spot elevations, topographic breaks, and landforms collected at density sufficient to generate 5 foot contours (as per City of Bellingham spec in contract with Triathlon). Mass points and breaklines were then processed by City of Bellingham GIS staff using tools available in ESRI ArcInfo workstation GRID and TIN, and ArcGIS desktop Spatial and 3D Analyst extensions. Iterative clean-up and editing of breaklines to resolve topographic errors around bridges, overpasses, rail trestles, docks, etc. completed to achieve clean surface model. Output 5 foot contours compared against previous City of Bellingham 1988/91 5 foot contour layer for verification. Final marine shoreline representation of 0-foot elevation generated using heads-up digitizing from 2002 6-inch resolution ortho imagery. Tidal elevation and offset determined using established Coast Guard/NOAA tidal references and photogrammetric report establishing time of day for imagery acquistion. Final 5 foot contour layer generated using ArcGIS 3D Analyst extension contour tool with vertex smoothing horizontal tolerance of 3 feet. INDEX attribute field added and calculated for every 5th contour (25 foot intervals) for cartographic display.2008120820101208FGDC Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998City of BellinghamPlanning GIS StaffPlanning GIS Staffmailing and physical address

210 Lottie St

BellinghamWA98225360-778-8300360 778-8302gishelp@cob.orghttp://www.cob.org/services/maps/index.aspxDownloadable DataThe City of Bellingham has developed these data and maps for its own use and no warranty expressed or implied is made regarding the merchantability and fitness for a particular purpose nor shall the act of distribution constitute any such warranty. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions, or intended use. The City of Bellingham shall not be held liable for improper or incorrect use of the data described and/or contained herein. The risk or liability resulting from the use of this product is entirely assumed by the user.City of BellinghamPlanning GIS StaffPlanning GIS Staffmailing and physical address

210 Lottie St

BellinghamWA98225360-778-8300360 778-8302gishelp@cob.orghttp://www.cob.org/services/maps/index.aspxLambert Conformal Conic47.50000048.733333-120.83333347.0000001640416.6666670.000000coordinate pairsurvey feet0.0001950.000195North American Datum of 1983Geodetic Reference System 806378137.000000298.257222Explicit elevation coordinate included with horizontal coordinates1.000000Attributes contain elevation information in US Feet. An index attribute tracks 5 and 25 foot intervals.COB