Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
20020807
Vectorized Shoreline of Rose Atoll, American Samoa, 2001 Derived from IKONOS Imagery
first
vector digital data
Charleston, SC
NOAA's Ocean Service, Coastal Services Center (CSC)
The vectorized shoreline data was derived from the one-meter panchromatic IKONOS imagery. Those areas of the coastline that were obscured by cloud cover were derived from United States Geological Survey (USGS) Digital Raster Graphics (DRGs)
http://products.coastalscience.noaa.gov/collections/benthic/e99us_pac/default.aspx
IKONOS imagery was purchased to support the Pacific Islands Geographic Information System (GIS) project and the National Ocean Service's (NOS) coral mapping activities. One-meter panchromatic and four-meter multi-spectral data were purchased for each study area. A digital vector shoreline was manually digitized from the one-meter panchromatic imagery to provide accurate, up-to-date shoreline data.
The Pacific Islands Geographic Information System (GIS) project is a multiyear initiative designed to increase the use of GIS and related spatial technology in the coastal resource management programs of the Territories of American Samoa and Guam, the Commonwealth of the Northern Mariana Islands (CNMI), and the State of Hawaii. The project will focus on personnel, training, equipment, software, data, and applications. Where appropriate, other related activities in the region will be incorporated into the effort.
20010101
20011202
ground condition
As needed
-168.179196
-168.131365
-14.524931
-14.565493
NCEI Geoportal FilterCoRIS_MetadataCRCP ProjectMapping the shallow-water coral reef ecosystems of American Samoa, Guam, and the Northern Marianas1209
CoRIS Discovery Thesaurus
Geographic Information > Shorelines
CoRIS Theme Thesaurus
EARTH SCIENCE > Oceans > Coastal Processes > Shorelines
None
Shoreline
land/water interface
Shoreline vectorization
IKONOS panchromatic imagery
IKONOS multispectral imagery
ISO 19115 Topic Category
elevation
006
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > American Samoa > Rose Atoll (14S168W0001)
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Rose Atoll (14S168W0001)
None
United States
Territory of American Samoa
Rose Atoll
Oceania
Coastal Zone
CoRIS Region
AmSam
none
Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program
Biogeography Team Leader, Mapping Manager
mailing and physical address
1305 East West Highway
Silver Spring
MD
20910
301-713-3028
301-713-4388
tim.battista@noaa.gov
Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.2.0.700
These data are believed to be logically consistent, though no tests were performed. All arcs were snapped by the nodes to create consistently tied strings without node dangles. Line geometry is topologically clean.
This shoreline dataset of Tutuila is dependent on the shoreline as delineated on 2001 IKONOS digital satellite imagery from Space Imaging, LLC. The position of the shoreline might change as the natural land changes or better maps and more current aerial photography become available.
The data were created by delineating the shoreline off of IKONOS panchromatic digital satellite imagery collected in 2001. The horizontal resolution of the digital imagery is 1 meter. The original scale of the imagery was 1:3780. During orthorectification of the IKONOS imagery, 60 ground control points were used to determine the circular error (CE) at a 90% confidence level. For Pacific Islands, Tutuila, American Samoa, IKONOS data, 2001 the circular error is 2.7 meters for the Panchromatic data set.
Space Imaging Incorporated
2001
IKONOS Panchromatic Satellite Imagery
remote-sensing image
Thornton, CO
Space Imaging
3780
CD-ROM
20010101
20011202
ground condition
IKONOS
Used to identify and digitize the shoreline (land/water interface) for American Samoa.
United States Geological Survey
19980226
Manua Islands Digital Raster Graphic (DRG)
map
Reston, VA
USGS
24000
CD-ROM
19980226
ground condition
USGS DRGs
Used to identify and digitize the shoreline (land/water interface) for areas of that coast that were obscured by cloud cover in the satellite imagery.
During the vectorization process, the satellite imagery was displayed on a computer screen using ESRI's ArcGIS 8.2 software. In order to obtain the highest degree of accuracy from the imagery, the one-meter panchromatic imagery was used as a base layer for digitizing. In an effort to better visualize the land-water interface, the one-meter imagery was overlaid on top of the four-meter multispectral imagery using a 35 % transparency value. The near-infrared band (Band 4) was used in the display of the multispectral imagery. The resultant base layer contained the one-meter resolution of the panchromatic imagery and the colorization of the four-meter imagery. The display was zoomed to the image resolution of the panchromatic imagery and the shoreline was manually digitized. All lines are coded with length, ID, origin, and source
Note - Areas of the shoreline that were obscured by cloud cover were digitized from USGS Digital Raster Graphics (DRGs). The USGS DRG for Manua had to be adjusted in the x and y directions using ERDAS Imagine 8.5 to match the IKONOS imagery.
20020802
National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), NOAA Coastal Services Center (CSC)
Pacific Islands GIS Specialist
mailing and physical address
2234 South Hobson Avenue
Charleston
South Carolina
29405
843-740-1200
843-740-1224
csc@csc.noaa.gov
0800 - 1700, Monday to Friday, EST
The completed shoreline dataset was sent to the on-island technical assistant in American Samoa for review and adjustment. Using the same IKONOS imagery and DRG datasets, as well as GPS data and personal knowledge of the subject area, the technical assistant was able to make adjustments to the shoreline. These adjustments were needed in areas where the land-water interface was unable to be determined clearly due to cloud cover or shadow.
200208
Territory of American Samoa, Department of Commerce, Coastal Zone Management Program
Kevin Cronk
GIS Assistant
mailing address
P.O. Box 4609
Pago Pago
American Samoa
96799
USA
011-684-633-5155
011-684-633-4195
kcronk@doc.asg.as
10
Vector
String
219
Transverse Mercator
0.999600
-171.000000
0.000000
500000.000000
10000000.000000
coordinate pair
0.000064
0.000064
meters
D_North_American_1983_HARN
Geodetic Reference System 80
6378137.000000
298.257222
roseshrln
Polyline shapefile
NOAA Coastal Service Center
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
AREA
Area of polygon
ArcView script
15108.656
67105.281
NA
PERIMETER
Perimeter of polygon
ArcView script
497.615
990.035
NA
National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program
Biogeography Team Leader, Mapping Manager
mailing and physical address
1305 East West Highway
Silver Spring
MD
20910
301-713-3028
301-713-4388
tim.battista@noaa.gov
Downloadable Data
Users must assume responsibility to determine the appropriate use for these data.
NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA can not assume liability for and 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.
ESRI shapefile
https://cdn.coastalscience.noaa.gov/datasets/e99/data/shorelines/rose_shoreline.zip
none
20200329
National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), NOAA Coastal Services Center (CSC)
Pacific Islands GIS Specialist
mailing and physical address
2234 South Hobson Avenue
Charleston
South Carolina
29405
843-740-1200
843-740-1224
csc@csc.noaa.gov
Monday through Friday, 0800 to 1700, EST
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
20050225023312
None
20010101
20011202
https://www.coris.noaa.gov/metadata/records/html/shoreline_rose_atoll_2001.html
846