gov.noaa.nmfs.inport:48258
eng
UTF8
dataset
Office for Coastal Management
resourceProvider
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
3
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C-CAP Territory of American Samoa (Swains Island) 2004-2010 Land Cover Change Analysis
2004_2010_era_AS_Swains_lc_change
2013-08-15
publication
NOAA/NMFS/EDM
48258
https://www.fisheries.noaa.gov/inport/item/48258
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Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://coast.noaa.gov/digitalcoast
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Citation URL
Online Resource
download
https://coast.noaa.gov/htdata/raster1/landcover/bulkdownload/hires
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
mapDigital
This data set contains the 2004 and 2010 classifications of Territory of American Samoa (Swains Island) and can be used to analyze change. This data set which utilized 1 full Quickbird multispectral scene and 1 full or partial 2010 WorldView2 multispectral scene, were analyzed according to the Coastal Change Analysis Program (C-CAP) protocol to determine land cover.
To improve the understanding of coastal uplands and
wetlands, and their linkages with the distribution,
abundance, and health of living marine resources.
completed
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
custodian
5 years
EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER
EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER > LAND USE/LAND COVER CLASSIFICATION
theme
Global Change Master Directory (GCMD) Science Keywords
17.0
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA
place
Global Change Master Directory (GCMD) Location Keywords
17.0
CAMERAS
instrument
Global Change Master Directory (GCMD) Instrument Keywords
17.2
Airplane > Airplane
WORLDVIEW-2 > DigitalGlobe WORLDVIEW-2
WORLDVIEW-3 > DigitalGlobe WORLDVIEW-3
platform
Global Change Master Directory (GCMD) Platform Keywords
17.2
Change Detection Analysis
Land Cover Analysis
Remotely Sensed Imagery/Photos
theme
American Samoa
Coastal Zone
place
DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2017-04-24
publication
8.5
C-CAP
project
InPort
otherRestrictions
Cite As: Office for Coastal Management, [Date of Access]: C-CAP Territory of American Samoa (Swains Island) 2004-2010 Land Cover Change Analysis [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48258.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
otherRestrictions
Access Constraints: None
otherRestrictions
Use Constraints: 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.
otherRestrictions
Distribution Liability: Users must assume responsibility to determine the usability of these data.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
48258
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48258.pdf
WWW:LINK-1.0-http--link
NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
grid
eng; US
imageryBaseMapsEarthCover
Microsoft Windows XP Version 2002 Service Pack 3; ESRI ArcCatalog 9.3 Service Pack 1
-64.905956
-64.563847
17.676339
17.788029
| Currentness: Acquisition dates of the source Quickbird and WorldView2 Scenes
2004-08-12
2010-12-06
false
eng
false
Layer_1
2017-11-16
publication
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
distributor
https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=4724
WWW:LINK-1.0-http--link
Customized Download
Create custom data files by choosing area, map projection, file format, etc.
download
dataset
Accuracy
Attribute_Accuracy_Report
Horizontal Positional Accuracy
12 meters CE90
Vertical Positional Accuracy
There was no terrain correction in the geo-referencing
procedure.
Completeness Report
Data does not exist for all classes.
Many classes of from-to change never occurred in Territory of American Samoa (Swains Island).
Conceptual Consistency
Tests for logical consistency indicate that all row and column
positions in the selected latitude/longitude window contain data.
Conversion and integration with vector files indicates that all
positions are consistent with earth coordinates covering the same
area. Attribute files are logically consistent.
Process_Description
This dataset was created by Photoscience.
This dataset contains the classifications of 2004 imagery and 2010 imagery. It is used for change analysis between these years. The
attributes include a from-to change description category. There are
521 classes corresponding to the 625 possible from-to change combinations.
In this section of the metadata, the 2004 classification
procedure is described, then the 2010 change detection classification procedure is
described. Finally in the post-processing section, the process of combining
the maps to generate a spatial matrix of change is discussed.
Early Date (2004) Classification: This section outlines the classification procedure for the American Samoa (Swains Island) High Resolution C-CAP. Quickbird imagery used in producing this land cover product was also utilized in producing an associated impervious surfaces layer for the island. The mapping approach utilized a boundary summary and refinement procedure developed by Sanborn to leverage previous United States Forest Service mapping efforts to create the high resolution land cover data set. A calibration visit was conducted and training data was collected for classification. Non impervious features were mapped using a 0.25 acre minimum mapping unit (MMU).
This dataset was created by Sanborn (www.sanborn.com).
This version of the classification is the High Resolution Land Cover (2004-era) for the Island of Swains, American Samoa.
This section outlines the classification procedure for the Island of Swains, American Samoa High Resolution C-CAP. Quickbird imagery used in producing this land cover product was also utilized in producing an associated impervious surfaces layer for the island. The mapping approach utilized an object oriented approach. A calibration visit was not conducted. Non impervious features were mapped using a 0.5 acre minimum mapping unit (MMU).
Pre-processing steps:
The Quickbird mosaic utilized for this project was provided from GeoEye as an orthorectifed, georeferenced product and was consistent with the quoted 1:12000 spatial accuracy.
Classification:
Segmentation - Image segmentation was completed at a sinlge scale using the multispectral (2.4 m) imagery in order to group like spectral and textural objects within the imagery. For consistency, the associated impervious data set was incorporated into the segmentation layer as a boundary delimiter. Segments can share boundaries of an impervious surface, but can never overlap an impervious surface.
Automated Classification - Image segments are classified using a decision tree classifier in See5 software and an iterative nearest neighbor classifier in Definiens software. Nearest neighbor training data is collected through analyst interpretation or ancillary data sets and used to calibrate the classification algorithm.
Automated Classification Refinement - Models are built to refine or reclassify land cover areas by utilizing the wealth of attribute information linked to each segment within Definiens.
Classification Edits - As with any automated or semi-automated land cover classification there are often inconsistencies in the land cover map. The final step before map finalization was to remove inaccuracies through manual segment labeling as interpreted by an analyst.
Map Finalization - Sanborn used independent reviewer's comments to further refine the land cover map.
2013-08-15T00:00:00
Attributes for this product are as follows:
0 Background
1 Unclassified
2 Impervious
3
4
5 Developed, Open Space
6 Cultivated Crops
7 Pasture/Hay
8 Grassland/Herbaceous
9 Deciduous Forest
10 Evergreen Forest
11 Mixed Forest
12 Scrub/Shrub
13 Palustrine Forested Wetland
14 Palustrine Scrub/Shrub Wetland
15 Palustrine Emergent Wetland
16 Estuarine Forested Wetland
17 Estuarine Scrub/Shrub Wetland
18 Estuarine Emergent Wetland
19 Unconsolidated Shore
20 Bare Land
21 Open Water
22 Palustrine Acquatic Bed
Late Date (2010) Classification:
This section outlines the classification procedure for the American Samoa (Swains Island) High Resolution C-CAP. WorldView2 imagery used in producing this land cover product was also utilized in producing an associated impervious surfaces layer for the island. A calibration visit was not conducted though NOAA had access to local resources for validation. Non impervious features were mapped using a 0.25 acre minimum mapping unit (MMU) and impervious features were mapped using a 0.1 acre MMU.
This data set was created by Photo Science Inc. (www.photoscience.com).
This version of the classification is the High Resolution Land Cover (2010-era) for the Island of Swains, American Samoa.
This section outlines the classification procedure for the Island of Swains, American Samoa High Resolution C-CAP. Non-impervious features were mapped using a 0.5 acre minimum mapping unit (MMU) and impervious features were mapped using a 0.1 acre MMU.
Pre-processing steps:
The WorldView2 imagery utilized for this project was provided from Digital Globe as an orthorectified, georeferenced product. Photo Science geo-referenced the 2002 C-CAP classification and the 2002 base imagery to the WorldView2 (as it has better horizontal accuracy) to co-register the data sets.
Classification:
The 2002 C-CAP classification was overlaid on the 2010 WorldView2 imagery with a semi-transparency. The classification was systematically reviewed at a scale of 1:2,500. Where land cover changes were identified the analyst would zoom into a larger scale and manually edit the map to reflect the 2010 ground conditions. The updated map then went through an independent review to further refine the classification. Image segmentation was run on the 2010 imagery in a buffered zone around all of the changed areas. The updated land cover was summarized by the image objects (segments) to replace hand delineated boundaries with boundaries based on image segmentation. This final step ensured a consistent look and feel across the high resolution C-CAP data sets.
Attributes for this product are as follows:
0 Background
1 Unclassified
2 Impervious
3
4
5 Developed, Open Space
6 Cultivated Crops
7 Pasture/Hay
8 Grassland/Herbaceous
9 Deciduous Forest
10 Evergreen Forest
11 Mixed Forest
12 Scrub/Shrub
13 Palustrine Forested Wetland
14 Palustrine Scrub/Shrub Wetland
15 Palustrine Emergent Wetland
16 Estuarine Forested Wetland
17 Estuarine Scrub/Shrub Wetland
18 Estuarine Emergent Wetland
19 Unconsolidated Shore
20 Bare Land
21 Open Water
22 Palustrine Acquatic Bed
Post-Processing Steps:
A GIS matrix algorithm was run with 2004 and 2010 datasets as inputs. The algorithm generates
a from-to file where each combination is uniquely labeled from 1 to 521.
2013-08-15T00:00:00
Metadata imported
2010-05-24T00:00:00
Source Contribution: NOAA OCM | Source Geospatial Form: remote-sensing image | Type of Source Media: DVD/CD-ROM
C-CAP Land Cover, Territory of American Samoa, Swains.
2009-12-17
publication
Sanborn. www.sanborn.com.
https://coast.noaa.gov/digitalcoast
WWW:LINK-1.0-http--link
Source Citation URL
Source Citation URL
information
2004-11-21