2006 EM300 and EM3002D Multibeam Sonar Data from Cruise Hi'ialakai HI-06-14 - Main Hawaiian Islands

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently anticipated questions:


What does this data set describe?

Title:
2006 EM300 and EM3002D Multibeam Sonar Data from Cruise Hi'ialakai HI-06-14 - Main Hawaiian Islands
Abstract:
EM300 and EM3002D multibeam data were collected from 8 Nov to 13 Nov 2006 aboard NOAA Ship Hi'ialakai at Maui Island and Hawaii's Big Island in the Central Pacific during cruise HI-06-14. These multibeam data were collected using SAIC ISS-2000 software in the Generic Sensor Format and processed using SABER editing software. Surface sound velocity values were supplied by a Seabird SBE-45 MicroTSG and a SBE-38 remote temperature probe. Sound velocity corrections from a Seabird 911 CTD sensor and motion corrections from a POS-MV vertical reference were applied to the data in real time.

Predicted tides were applied to the data in real time using tide zoning and predicted tides supplied by NOAA's National Ocean Service Center for Operational Oceanographic Products and Services (CO-OPS).

Horizontal accuracy is 20m (no differential GPS correctors applied), vertical accuracy is depth dependent (~1% of water depth), WGS84 datum. These data are not to be used for navigation. Depths mapped range from -20 to -1000 m.

Supplemental_Information:
Data were collected aboard the 68m (218') NOAA Ship Hi'ialakai. The Hi'ialakai's survey sensors include a 30 kHz Simrad EM300 sonar and a 300 kHz Simrad EM3002d sonar, both of which measure bathymetry and acoustic backscatter imagery, a TSS/Applanix POS/MV Model 320, which measures time, position, velocity, attitude and heading, and a Seabird SBE 9/11 plus CTD used to measure sound velocity profiles.

The Hi'ialakai's equipment serial numbers, software versions and sensor configuration settings are as follows:

SIMRAD EM300 multibeam echosounder Serial #: 303 PU Software Versions: PU: 2.0.1 040629 DDS: 3.17 040611 BSP: 2.3.2 040615 SPRX: 1.1.3 040427 SPTX: 2.0.0 040614 SIS Software Version: 3.2.2, build 54, Sept 7 2006

SIMRAD EM3002D multibeam echosounders Serial #: 357 and 353 PU Software Versions: HCT: 2.0.7 040906 BSP67 Master: 1.2.7 040830 BSP67 Slave: 1.2.7 040830 PU: 1.6.8 050118 DDS: 3.17 2004/06/11 SIS Software Version: 3.2.2, build 54, Sept 7 2006

HI'IALAKAI POS/MV Model 320, version 3 PCS serial #: 295 IMU serial #: 1333 PCS Firmware: 2.21, Feb 02, 2006 Controller software: v 2.1

Seabird SBE 9/11 plus CTD: Serial #: 09P35130-0737

Hi'ialakai Lever Arm Distances and Alignment Offsets: The Hi'ialakai's Reference Point (RP) is a granite block situated 1.222 m starboard of the ship's centerline, 1.23 m above the ship's baseline/datum on the keel. The RP is located under the forward deck, in the ship's laundry room. The ship's sensors, the sonar systems and permanent benchmarks are measured with respect to the RP. Positive X means the point is forward of the RP, positive Y means the point is to starboard of the RP, positive Z means the point is below the RP. The survey waterline is defined to be at the 15' draft mark on the vessel's starboard side.

POS/MV Settings: X Y Z RP to IMU, m 0.434 0.000 -0.117 RP to Primary GPS(port),m -18.101 -2.011 -23.545 RP to Vessel, m 0.00 0.00 0.00 IMU w.r.t. Ref. Frame, deg 0.00 0.00 0.00 RP to Heave lever arm, m -14.532 -1.179 -5.234 Sensor 1 & 2 lever arms & angles: 0 0 0 Antenna Baseline Distance: 1.779

EM300 Settings: X Y Z Pos sensors 1 2 & 3, m 0 0 0 TX Transducer, m -04.091 -2.217 1.727 RX Transducer, m -06.065 -1.222 1.727 Attitude sensors 1 & 2, m 0 0 0 Waterline, m -3.26 Roll Pitch Heading TX Transducer, deg 0.00 0.00 359.96 RX Transducer, deg 0.00 0.00 0.05 Attitude 1, deg -0.20 0.00 0.00 Attitude 2, deg 0 0 0 Stand-alone heading, deg 0

Resource Description: EM300 and EM3002D Multibeam Sonar Data from Cruise Hi'ialakai HI-06-09

  1. How should this data set be cited?

    Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), 20070406, 2006 EM300 and EM3002D Multibeam Sonar Data from Cruise Hi'ialakai HI-06-14 - Main Hawaiian Islands.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -156.91
    East_Bounding_Coordinate: -155.67
    North_Bounding_Coordinate: 21.22
    South_Bounding_Coordinate: 18.87

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 08-Nov-2006
    Ending_Date: 13-Nov-2006
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: Generic Sensor Format (GSF) digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

    2. What coordinate system is used to represent geographic features?

  7. How does the data set describe geographic features?


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    NOAA PIFSC CRED PIBHMC and JIMAR

  3. To whom should users address questions about the data?

    Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
    NOAA IRC
    Honolulu, HI 96818

    808 725-5360 (voice)
    808 725-5429 (FAX)
    nmfs.pic.credinfo@noaa.gov

    Contact_Instructions: e-mail preferred


Why was the data set created?

The data were collected in support of Coral Reef Conservation Program goals to map all shallow (0-30 m)coral reefs in US Pacific waters and priority moderate (> 30 m)depth areas by 2009. The data are being used to provide bathymetric and backscatter data for previously unmappedareas; in support of ecosystem management requirements for benthic habitat mapping and location of Essential Fish Habitat; and to study the geologic features of the area.


How was the data set created?

  1. From what previous works were the data drawn?

    Simrad EM300 and EM3002D (source 1 of 1)
    NOAA PIFSC CRED PIBHMC and JIMAR, 20070115, Simrad EM300 and EM3002D multibeam bathymetric data.

    Type_of_Source_Media: Digital data
    Source_Contribution:
    Simrad EM 300 (30 kHz) and Simrad EM 3002D (300 kHz)bathymetry and imagery data were collected in depths of -20 m and -1000m. The EM 300 system was placed in stand-by mode in shallower water (<100 m) due to high noise levels.

  2. How were the data generated, processed, and modified?

    Date: Unknown (process 1 of 1)
    None

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Horizontal accuracy is ~20 m as data were collected using GPS with no differential corrections. Vertical accuracy of multibeam data is estimated at 1% of water depth.

  2. How accurate are the geographic locations?

    Variable

  3. How accurate are the heights or depths?

    Variable

  4. Where are the gaps in the data? What is missing?

    Varies

  5. How consistent are the relationships among the observations, including topology?

    These data are believed to be logically consistent though no tests were performed


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None.
Use_Constraints: These data are NOT TO BE USED FOR NAVIGATION

  1. Who distributes the data set? (Distributor 1 of 1)

    Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
    NOAA IRC
    Honolulu, HI 96818

    808 725-5360 (voice)
    808 725-5429 (FAX)
    nmfs.pic.credinfo@noaa.gov

    Contact_Instructions: e-mail preferred
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    These data are not to be used for navigational purposes. NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA 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.

  4. How can I download or order the data?

  5. Is there some other way to get the data?

    Please contact the Distributor (see above) for distribution options

    Data Format - Generic Sensor Format, as described in <http://www.ldeo.columbia.edu/res/pi/MB-System/formatdoc/gsf_spec.pdf>


Who wrote the metadata?

Dates:
Last modified: 12-Mar-2014
Last Reviewed: 26-May-2009
Metadata author:
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
NOAA IRC
Honolulu, HI 96818

808 725-5360 (voice)
808 725-5429 (FAX)
nmfs.pic.credinfo@noaa.gov

Contact_Instructions: e-mail preferred
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.9.13 on Mon Sep 22 10:40:49 2014