Chief of Survey Section
20210611
Back River, Weymouth, Massachusetts
A hydrographic survey of the federal navigation project. Soundings were taken at prescribed intervals to determine the current condition of the federal project
This data set is used for channel condition reports and project mapping.
20210611
None
As Needed
-070.929563
-070.917269
+42.265521
+42.253626
Theme_Keyword Hydrographic
Theme_Keyword Topographic
Theme_Keyword Orthometric
Theme_Keyword Bathymetric
Theme_Keyword Survey
Theme_Keyword Sounding
Theme_Keyword Point
None
The data represents the results of data collection and processing for a specific U.S.
State_Plane_Coordinate_System SPCS_Zone_Identifier
coordinate pair
0.01
0.01
NAVD 1988
0.01
US Survey Foot
Explicit elevation coordinate included with horizontal coordinates
MLLW
0.01
US Survey Foot
Explicit elevation coordinate included with horizontal coordinates
20210611
Chief of Survey Section
U.S. Army Corps of Engineers, New England District
mailing
696 Virginia Road
Concord
MA
01742-2751
978-318-8783
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
Army Corps of Engineers activity and indicates the general existing conditions. As such it is only valid for
it's intended use, content, time and accuracy specifications. The user is responsible for the results of any
application of the data for other than its intended purpose.
Other_Information:
Element_Name: 15-Foot Channel Weymouth Back River Reach 1, 15-Foot Channel Weymouth Back River Reach 2, 15-Foot Channel Weymouth Back River Reach 3, 15-Foot Basin Weymouth Back River Basin, Condition Survey
Area_of_Coverage: 15-Foot Channel, 15-Foot Basin Complete Coverage
Type_of_Survey: Hydrographic Survey
Survey_File_Name: MA_28_WBR_20210607_CS_027.xyz
Associated_Data_File: MA_28_WBR_20210607_CS_027_Full.xyz, MA_28_WBR_20210607_CS_027_A.xyz
Data_File_Delimiter: Space
Team_Leader: Patrick Berube, Crew Chief
Survey_Manager: Chief of Survey Section
Project_Manager: Chief of Navigation Section
QA_Person: Zachary S. McAvoy
QA_Date: 20210611
Projected_Coordinate_System: State Plane NAD-83
Horizontal_Zone: MA-2001 MASSACHUSETTS MAINLAND
WGS-84
Units: US Survey Foot
Implied_Horizontal_Accuracy: +/- 1 Feet
Data_Transformation_Method: Point to Point Software
Tidal_Epoch: 1983-2001
Geoid_Model: Geoid 12B
Implied_Vertical_Accuracy: +/- 0.2 Feet
Vessel_Name: KEEGAN
Positioning_System: Real Time Kinematics (RTK);
Base Station: (CARVEN 2005)
System: Reson T50 (Multibeam Sonar)
Transducer_Beam_Angle: N/A
Multi-beam_Swath_Width: 120
Bin_Size: 20'
Shot_Selection_Method: SHOAL
Shot_Positioning_Method: Point Positioning
Edited: Yes
Tide_Applied: Yes (RTK)
Tide_Gauge_Location: N/A
Controlling_Benchmarks: V-Datum Model (NOAA)
Tide_Gauge_Application_Method: Direct
Squat_Applied: No
Squat_Application_Method:
Heave_Applied: Yes
Heave_Application_Method: REAL TIME KINEMATIC
Pitch_Roll_Applied: Yes
Topographic_Data_Included: No
Topographic_Method: N/A