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)
20121225
Gridded multibeam bathymetry of Zealandia Bank,
Commonwealth of the Northern Mariana Islands (CNMI).
digital data
http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/submerged-banks/zealandia-bank/
http://www.soest.hawaii.edu/pibhmc/
Gridded bathymetry shelf, bank and slope environments of
Zealandia Bank, CNMI. Bottom coverage was achieved in depths
between ~12 and 285 meters, The Arc ASCII grid includes multibeam
bathymetry from the Simrad EM300 and Reson 8101 multibeam sonars
collected as of June 2007 by the NOAA Coral Reef Ecosystem
Division. The sonar frequencies are 30 and 240 kHz respectively.
The ASCII grid was created using data gathered
from multibeam soundings for use as a planning and reference
document. The data are also being used for benthic habitat
mapping, for locating Essential Fish Habitat, and for studying
geologic features of the area. Refer to supplemental information
for description of instrument and survey.
Multibeam data were collected aboard the NOAA Ship Hi'ialakai, a
218' United States National Oceanographic and Atmospheric
Administration research ship. The NOAA Ship Hi'ialakai's survey
sensors include a 30 kHz Simrad EM300 sonar and a 300 kHz Simrad
EM3002d sonar, which provide bathymetry and imagery data, a
TSS/Applanix POS/MV Model 320, which measures position, velocity,
attitude and heading, and a Seabird SBE 9/11 plus CTD used to
measure sound velocity profiles.
Multibeam data were also collected aboard the R/V AHI (Acoustic
Habitat Investigator), a 25' survey launch owned and operated by
the NOAA Pacific Islands Fisheries Science Center in Honolulu,
HI. The R/V AHI's survey sensors include a 240 kHz RESON 8101-ER
sonar providing bathymetry and imagery data, a TSS/Applanix
POS/MV Model 320 which measures position, velocity, attitude and
heading, and a Seabird SBE 19 CTD used to measure sound velocity
profiles.
Specific equipment configurations are documented in metadata from
cruises AHI0703 and HI0703. These metadata can be accessed at:
http://www.soest.hawaii.edu/pibhmc/cms/cruise-catalog/
20070525
20070608
ground condition
As needed
145.839
145.859
16.904
16.868
NCEI Geoportal FilterCoRIS_Metadata
CRCP Project
Benthic Habitat Mapping and Characterization in the Pacific Islands Region
467
CoRIS Theme Thesaurus
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > geomorphology Mapping
EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
ISO 19115 Topic Category
elevation
006
CoRIS Discovery Thesaurus
Geographic Information > Bathymetry
None
Zealandia Bank
Commonwealth of the Northern Mariana Islands
United States of America
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Mariana Islands > Zealandia Bank (16N145E0005)
COUNTRY/TERRITORY > Northern Mariana Islands > Northern Mariana Islands > Zealandia Bank (16N145E0005)
CoRIS Region
CNMI
None
These data are not to be used for navigation purposes. Please acknowledge the NOAA Pacific Islands Fisheries
Science Center (PIFSC) Coral Reef Ecosystem Division (CRED) and
the Pacific Islands Benthic Habitat Mapping Center, and the Joint
Institute for Marine and Atmospheric Research (JIMAR) and School
of Ocean and Earth Science and Technology (SOEST), University of
Hawaii as the sources of this information.
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)
mailing and physical
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
nmfs.pic.credinfo@noaa.gov
e-mail preferred
http://www.soest.hawaii.edu/pibhmc/CNMI_images/ZEA_5m_bathy_445.jpg
Gridded Bathymetry Derivative
JPEG
NOAA PIFS, CRED, PIBHMC, JIMAR, and SOEST
Not applicable
Unclassified
Not applicable
ArcGIS ASCII file, derived from bathymetry in ArcGIS 10.1
Data are collected for resource management and research purposes and are tested
for internal consistency; however, no effort is made to compare these data to
external references or to other published data.
These data are believed to be logically consistent though no tests were performed
Complete
Horizontal positioning system: GPS C/A
Horizontal position accuracy: 25 meters
Range resolution of sonar: varies with depth
Raw sounding resolution: varies with depth
Vertical accuracy of gridded product ~ 1% of water depth
Multibeam swath files are acquired on and around each island and
bank in the Generic Sensor Format (GSF) and are edited on a swath
by swath basis using SAIC's SABER editing software. The edited
swath files are then combined into a Pure File Magic (PFM) format
with a defined grid cell size (5m) in SABER and area based
editing is performed. The edited PFM is then exported as X,Y,Z
data with a value at each grid node. The X,Y,Z data are then
and gridded using nearneighbor, a Generic Mapping Tools (GMT)
algorithm that converts an ASCII or binary table to a netCDF grid
file format. NetCDF grids are then converted to an ArcGIS ASCII
file format using LINUX/UNIX commands in combination with GMT.
GMT is an open source collection of tools for manipulating
geographic data sets. Additional information about GMT can be
found at: http://www.soest.hawaii.edu/gmt and additional
information about the multibeam data processing is recorded in
the cruise metadata.
20071002
Raster
Grid Cell
799
421
1
Universal Transverse Mercator
55
0.9996
147
0
500000
0
row and column
5
5
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
mean lower low water
0.01
meters
Attribute values
Depth values are real values based on the average of the
soundings that fell within the extracted grid cells. The number
of soundings per grid cell range from >1000 soundings in shallow
depths to as few as 20 soundings in deeper areas. A total error
budget for these data have not been developed. Therefore, the
accuracy of depth measurements should be considered to be within
1 meter.
none
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)
mailing and physical
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
nmfs.pic.credinfo@noaa.gov
e-mail preferred
Downloadable Data
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.
Arc ASCII
Arc ASCII can be converted to Arc
Raster using ArcToolbox Conversion Tools (ASCIItoRaster).
ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/bathymetry/zea_5m.zip
None
20200329
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)
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
nmfs.pic.credinfo@noaa.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
universal time
None
None
https://www.coris.noaa.gov/metadata/records/html/zea_5m.html
6615