Rob Ryan USDA Natural Resources Conservation Service 935 Powell Avenue SW Renton, WA 98055
206.764.3325 X109 fax 206.764.6677 rob.ryan@wa.usda.gov
and
Chuck Natsuhara Resource Soil Scientist NRCS - Pierce County 253.845.9272 chuck.natsuhara@wa.usda.gov
Referred to Mr. Natsuhara by:
Monty Mahan Pierce County Conservation District montym@piercecountycd.org
Photos are dated 8-5-55, "DZR" series.
This image dataset was created from 13 individual photos (stored in TIFF format) which were orthorectified, mosaicked, and tiled into rectangular sections approximately 4900+ meters by 7000+ meters. (Sections are roughly the extents of slightly overlapping USGS Digital Ortho Quarter-quads found at <http://duff.ess.washington.edu/data/raster/doqs/>). Data does not necessarily fill each section completely.
Scale: approx. 1:24,000
amX: 2.2802 amY: 2.2065 amZ: 8.5306
Average residual values for the X, Y, and Z control point coordinates from ERDAS Imagine OrthoBASE Triangulation Report (measured in meters):
aX: -0.0454 aY: -0.0166 aZ: 0.3197
Root mean square errors (standard deviation) of all X, Y, and Z from ERDAS Imagine OrthoBASE Triangulation Report (measured in meters):
mX: 1.5088 mY: 1.4366 mZ: 4.9569