Data Management Plan

This image represents a 4 meter resolution bathymetry of a reef shelf/bank and the steep canyons and slopes of the NE Reserve, offshore of Fajardo, Puerto Rico. The M-I907-NF-12 survey was split into two sites: W00221 in the west and W00222 in the east. NOAA's NOS/NCCOS/CCMA Biogeography Team, in collaboration with NOAA vessel Nancy Foster and territory, federal, and private sector partners, acquired multibeam bathymetry data in the Northeast Grand Reserve from 4/08/2012 to 4/20/2012. Data was acquired with a hull-mounted Kongsburg Em 1002 echosounder (95 kHz) and processed by a NOAA contractor using CARIS HIPS software. Data has all correctors applied (attitude, sound velocity) and has been reduced to mean lower low water (MLLW) using final approved tides from NOAA COOPS. Data is in UTM zone 20 north, datum NAD83. The backscatter component of the bathymetry data were geometrically and radiometrically corrected using Hypack 2012 acquisition software. The project was conducted to meet IHO Order 1 and 2 accuracy standards, dependant on the project area and depth. All users should individually evaluate the suitability of this data according to their own needs and standards.

Process Steps:

• 2012-04-01 00:00:00 - For this project, the Chief Scientist was NOAA/NOS/NCCOS/CCMA's Tim Battista and the Lead Hydrographer was independent contractor Mike Stecher. Data was collected aboard the NOAA ship Nancy Foster from 4/08/2012 to 4/20/2012, as project number M-I907-NF-12. Multibeam data was acquired in Simrad .hsx and .7k formats with hull-mounted Reson 7125 and Kongsberg Simrad EM 1002 multibeam echosounders (400 kHz). Simrad backscatter snippet collection was enabled. Line spacing for acquisition was three times the water depth, and data was retained out to 60 degrees from nadir, depending on project area. Heave, roll, pitch and heading correctors were collected using an Applanix POS/MV Model 320 inertial measurement unit (IMU) and associated Trimble GPS antennas. Sound velocity profiles were acquired with a Seabird Electronics SeaCat SBE19P CTD profiler and processed using Seabird Seaterm software. Positioning was obtained using Northstar 941X GPS receivers with differential correctors from U.S. Coast Guard CORS beacon Isabel, Puerto Rico. Data was reduced to Mean Lower-Low Water (MLLW) using final approved tides from NOAA COOPS, based on National Water Level Observation Network (NWLON). | Source Produced: Raw Multibeam Data M-I907-NF-12 (Citation: Raw Multibeam Data M-I907-NF-12)
• 2012-04-01 00:00:00 - Raw .hsx and .all data were converted and processed using CARIS HIPS v7.0 software, resulting in a CARIS HDCS format dataset with all correctors applied. Attitude and SWMB data was cleaned of fliers, and SWMB data was reviewed in subset mode by a NOAA contractor. | Source Produced: M-I907-NF-12 HDCS Processed Multibeam Data (Citation: Raw Multibeam Data M-I907-NF-12)
• 2012-10-01 00:00:00 - After being submitted to CCMA by the contractor, CARIS HIPS v7.1 was used to generate a CARIS BASE surface (similar to a DTM), based on CUBE (Combined Uncertainty and Bathymetry Estimator) from the processed HDCS data. A .BAG file (Bathymetric Attributed Grid) was exported from CARIS using the "BASE Surface to BAG" tool. | Source Produced: M-I907-NF-12 CARIS BASE Surface (Citation: M-I907-NF-12 HDCS Processed Multibeam Data)
• 2012-10-01 00:00:00 - The BAG file was opened in ArcMap 10 and exported as a GeoTIFF at 4m resolution. | Source Produced: NF12_PR_1002_Bathy_8m.tif (Citation: M-I907-NF-12 CARIS BASE Surface)

Click on link from project page to NCEI archive and download zip file.;