OL_01_OEC_20160202_CS_E_14_5_166.xml

Seattle District U.S. Army Corps of Engineers(ed.)

Unknown Unknown Hydrographic Survey of Olympia, Washington map

Olympia Olympia Channel

Seattle Washington Seattle District U.S. Army Corps of Engineers

The U.S. Army Corps of Engineers collects hydrographic data in support of chart compilation for safe navigation and to provide background data for engineers, scientific, and other commercial and industrial activities. Hydrographic survey data consist of water depths collected along longitudinal lines regularly spaced.

Channel Depth Status

Equipment- R2 Sonic Multibeam, 140 degree swath (varies), 1.5 x 1.5 individual beam. 400 khz (varies) Boat- NWS 1 16 34 Surveyor- Neil Usefara/ Jeremy Abrahamsen Boat Operator-Ed Benton Date Edited-20160204 Edited by- Jeremy Abrahamsen Survey type-Multibeam median soundings at 2x2 and 5x5 matrix intervals with lines spaced according to depth for 200% multibeam coverage.

20160202

Publication Date

Complete As needed

-122.930745 -122.930745 47.089555 47.048453

Tri - Service Spatial Data Standard Hydrography Bathymetry Water Depth Seafloor Topography Condition Survey Hydrographic Survey Survey

Geographic Names Information System

Washington U.S. States

None Seafloor

None

These data are NOT to be used for navigation. Distribution These data are not to be used for navigation purposes. USACE makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty.USACE cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. Only NOAA nautical charts are designed and approved for navigational use.

Chief Hydrographic Survey

Chief, Hydographic Survey mailing address

Seattle District U.S. Army Corps of Engineers PO Box 3755

Seattle Washington 98124-3755

USA

(206) 764-3429 Craig.D.Morton@ usace.army.mil 9AM to 5PM Email or Call for products

Collected by survey crew located in Olympia.

Text file of xyz data set in State Plane Coordinates

These data were compiled for government use and represent the results of data collection/processing for a specific U.S. Army Corps of Engineers (USACE) activity.

The USACE makes no representation as to the suitability or accuracy of these data for any other purpose and disclaims any liability for errors that the data may contain.

As such, it is only valid for its intended use, content, time, and accuracy specifications. While there are no explicit constraints on the use of the data, please exercise appropriate and professional judgment in the use and interpretation of these data.

All hydrographic data is edited for outliers both in position(xy) and depth (z) using Hypack softtware's standard three phase hydrographic survey editing procedures.

Also checked are base station inputs and post processed comparisons with previous surveys.

No ommisions.

RTK

10cm RTK positioning Static test

RTK

.5 feet RTK error budget

Seattle District U.S. Army Corps of Engineers(comp.)

Unknown Unknown Olympia Olympia Channel Condition Survey map

Olympia Channel 2 Feb 2016 chart

20160202

Publication Date

Olympia Olympia Channel Survey crew Olympia

Hypack standard three phase editing process.

20160204

Point

Point

State Plane Coordinate System 1983

47.33333333333333333333333 45.83333333333333333333333 -120.500000 +45.333333 1640416.6670 0.000000000 coordinate pair

0.01 0.01

Survey Feet

North American Datum of 1983-2011 Epoch 2010

WGS-84

6378137.000 298.257223563

NAVD88 Geoid2012a 0.5 Feet Explicit depth coordinate included with horizontal coordinates

Mean lower low water - Epoch 1983-2001 0.5 Feet Explicit depth coordinate included with horizontal coordinates

20160509 20160509

Karry Kinared

Lead Hydrographic Surveyor mailing address

Seattle District U.S. Army Corps of Engineers PO Box 3755

Seattle Washington 98124-3755

USA

(206) 999-9596 karry.h.kinared@nws02.usace.army.mil

FGDC Content Standards for Digital Geospatial Metadata

FGDC-STD-001-1998