Castine Harbor and Bagaduce River Hydrographic Survey

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Summer Hydrographic Field Course 2008, Center for Coastal and Ocean Mapping / Joint Hydrographic Center (CCOM/JHC), University of New Hampshire
Publication_Date: 2008
Title: Castine Harbor and Bagaduce River Hydrographic Survey
Description:
Abstract:
Raw Simrad EM3002 dual-head multibeam bathymetry data provided in .all format. Data corrected for position, vessel attitude, water-column sound-speed and refraction.
Purpose:
The Maine Maritime Academy (MMA) and the Tidal Energy Device Evaluation Center (TEDEC) are developing a tidal energy project in Castine harbor and the Bagaduce River. This area has a great potential as a renewable energy source due to the high tidal range, strong currents, and narrow cross-section. A bathymetric survey of Castine harbor and the Bagaduce River was conducted by students of the 2008 Summer Hydrographic Field Course at the Center for Coastal and Ocean Mapping / Joint Hydrographic Center (CCOM/JHC). MMA and TEDEC specified two areas of primary interest for the tidal energy project: Castine harbor and the narrows of the Bagaduce River. A secondary area was also identified due to its environmental importance within the proposed development of a renewable energy site (Trott Ledge area).
Supplemental_Information:
The Summer Hydrographic Field Course class of 2008 was responsible for all aspects of survey planning, data acquisition, and data processing.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2008-06-20
Beginning_Time: 17-54
Ending_Date: 2008-06-20
Ending_Time: 17-55
Status:
Progress:
Imcomplete due to (~20 cm) offsets in data still being evaluated
Spatial_Domain:
Bounding_Coordinates:
Start_of_line_Latitude: 44.394985 Start_of_line_Longitude: -68.787500 End_of_line_Latitude: 44.394806 End_of_line_Longitude: -68.787166 Bounding_Coordinate_Units: Decimal Degree
Keywords:
Theme:
Theme_Keyword_Thesaurus: Bathymetry
Theme_Keyword: Multibeam, Simrad EM3002D
Place:
Place_Keyword: Castine harbor, Bagaduce River
Place_Keyword: Castine
Place_Keyword: Maine
Access_Constraints: None
Use_Constraints:
Please recognize the University of New Hampshire, Center for Coastal & Ocean Mapping (UNH/CCOM) as the source of this information.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: CCOM/JHC
Contact_Person: Andy Armstrong / Semme Dijkstra
Contact_Position: Faculty / Faculty
Contact_Address:
Address_Type: mailing and physical address
Address: Chase Ocean Engineering Bldg, 24 Colovos Road
City: Durham
State_or_Province: NH
Postal_Code: 03824
Country: USA
Contact_Voice_Telephone: 603-862-4559 / 603-862-0525
Contact_Facsimile_Telephone: 603-862-0839
Contact_Electronic_Mail_Address: s.dijkstra@unh.edu, helpdesk@ccom.unh.edu
Hours_of_Service: 9 AM - 5 PM EST
Security_Information:
Security_Classification: Public Release
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
A Kongsberg Simrad EM3002D 300-kHz multibeam dual heads sonar was used with effective beam opening angle of 10-57 degrees for each transducer head resulting in a swath width ~3 times water depth in water depths between 4 and 25 m, with depth accuracies still to be determined.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal positioning of the vessel was determined using an Applanix Position and Orientation System for Marine Vessels (POS/MV) V4 combined with an Applanix Inertial Motion Unit (IMU-200). The horizontal positions from POS/MV were controlled using Real-Time Kinematic (RTK) correctors. Positioning is accurate to better than 0.05 meters (at 95% confidence) during surveying. All positioning is referenced to the WGS84 Datum.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Survey meets IHO Special Order depth accuracy specifications for all areas with the exception of the narrows of the Bagaduce River, which met IHO Order 1 specifications.
Lineage:
Process_Step:
Process_Description:
The bathymetry data were collected and processed by the 2008 Summer Hydrographic Field Course. The data were cleaned and processed in using CARIS HIPS and SIPS (v. 6.1). Tide correctors were provided by an Aanderaa tide guage installed at Castine harbor. Sound speed correctors were obtained using an Odom Digibar Pro sound velocimeter, deployed at least once every 4 hours (frequency of casts dependent on environmental conditions at the transducer face as recorded by the surface sound velocimeter mounted between the transducer heads).
Process_Date: June/July 2008
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: CCOM/JHC
Contact_Person: Andy Armstrong / Semme Dijkstra
Contact_Position: Faculty / Faculty
Contact_Address:
Address_Type: mailing and physical address
Address: Chase Ocean Engineering Bldg, 24 Colovos Road
City: Durham
State_or_Province: NH
Postal_Code: 03824
Country: USA
Contact_Voice_Telephone: 603-862-4559 / 603-862-0525
Contact_Facsimile_Telephone: 603-862-0839
Contact_Electronic_Mail_Address: s.dijkstra@unh.edu, helpdesk@ccom.unh.edu
Hours_of_Service: 9 AM - 5 PM EST
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: point
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 1 cm
Longitude_Resolution: 1 cm
Geographic_Coordinate_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: WGS84
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.00 Meters
Denominator_of_Flattening_Ratio: 0.003352811 Meters
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: Mean Lower Low Water (MLLW)
Depth_Resolution: <0.5% of water depth
Depth_Distance_Units: Meters
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Contact_Person Andy Armstrong / Semme Dijkstra Contact_Position Faculty / Faculty
Contact_Address:
Address: Chase Ocean Engineering Bldg, 24 Colovos Road
City: Durham
State_or_Province: NH
Postal_Code: 03824
Country: USA
Contact_Voice_Telephone: 603-862-4559 / 603-862-0525
Contact_Facsimile_Telephone: 603-862-0839
Contact_Electronic_Mail_Address: s.dijkstra@unh.edu, helpdesk@ccom.unh.edu
Hours_of_Service: 9 AM - 5 PM EST
Distribution_Liability:
Data not intended for navigational purposes. These data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Neither the University of New Hampshire nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: .ALL
File_Decompression_Technique:
Transfer_Size: 10.02543
Metadata_Reference_Information:
Metadata_Date: 2008
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: CCOM/JHC
Contact_Person: Andy Armstrong / Semme Dijkstra
Contact_Position: Faculty / Faculty
Contact_Address: Mailing and Physical Address
Address: Chase Ocean Engineering Bldg, 24 Colovos Road
City: Durham
State_or_Province: NH
Postal_Code: 03824
Country: USA
Contact_Voice_Telephone: 603-862-4559 / 603-862-0525
Contact_Facsimile_Telephone: 603-862-0839
Contact_Electronic_Mail_Address: s.dijkstra@unh.edu, helpdesk@ccom.unh.edu
Hours_of_Service: 9 AM - 5 PM EST
Metadata_Standard_Name:
FGDC Content Standard for Digital Geospatial Metadata ("CSDGM version 2")
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: Local Time
Metadata_Security_Information:
Metadata_Security_Classification: Public Release
Generated by mp version 2.9.8 on Sun Oct 12 09:03:43 2008