Data: American Samoa
& Tau, American Samoa
Date: Nov 2012
Location: Tutuila, American Samoa
Date: Jan-Feb 2008
& Tau, American Samoa
Date: Feb-Mar 2006
Ofu, Tau, & Tutuila,
Location: Ofu & Tutuila,
| Baker & Howland, Pacific Remote Islands Area
Assessment Device (TOAD) Tracks
(ArcGIS shapefile): These
files allow an ArcGIS user to plot the positions of the camera device
during the survey period. The attributes of the shapfile (stored in the
DBF file) include the results of video classification, and allow the
Arc user to sort points by, for example, substrate type or living cover
category. Zipped file includes DBF, PRJ, SBN, SBX, SHP, SHP.XML, and
SHX files; the metadata and JPG files are also included.
TOAD Tow Video Files(MP4/YouTube): These
files allow a user view optical data collected by the
TOAD camera device
during the survey period. Additionaly, instead of
downloading, the files have been uploaded to YouTube for on demand
Metadata: A text file
documenting all pertinent
information specific to the cruise, year, research vessel, and camera
sled model used during the collection period.
JPG: A high-resolution image of
the track map.
Separate track maps exist for each year of data collection, as well as
a Master track map which displays all tow tracks together.
Benthic Habitat Classification Codes: A
listing of the categories used in photo/video classification, including
the category codes. These codes are the values which appear in the
shapefiles' attributes table.
ArcGIS-compatible symbology files: Two
ESRI LYR files which enable the ArcGIS user to match the symbology of
the downloaded shapefiles in their projects to that displayed in the
maps on the PIBHMC website.
Metadata & Data
Ta'u Optical Data
American Samoa Optical Data Map
map based data viewer for optical seafloor imagery from American Samoa
collected by the Pacific Islands Benthic Habitat Mapping Center
(PIBHMC.) The data viewer includes an interactive map of the different
islands in American Samoa, and camera sled dive points where the
optical imagery were collected.
Clicking on any point along a dive track will open a box showing the
classification of substrate type (sand, rock, rubble, etc.) and living
cover (hard coral, macroalgae, etc.) for 5 equally spaced points along
a horizontal line across the video screen at that location. The box
also includes links to play/download the underwater tow video and
associated optical data. Options to filter the data by island, cruise,
tow and etc are also available.