48360
C-CAP USVI, St. Croix 2007-2012 Land Cover Change Analysis
usvi_stcroix_2007_2012_ccap_hr_change
Data Set
Published / External
47841
C-CAP
Project
Completed
2015-01-30
This data set contains the 2007 and 2012 classifications of St. Croix and can be used to analyze change. This data set utilized CIR imagery captured from Microsoft UltraCAM X (2011 flights) and Z/I Imaging DMC-II 230 (2012 flights) digital sensors and the 2007 high resolution St. Croix C-CAP dataset which 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.
11426
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER > LAND USE/LAND COVER CLASSIFICATION
Theme
ISO 19115 Topic Category
imageryBaseMapsEarthCover
Spatial
Global Change Master Directory (GCMD) Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > VIRGIN ISLANDS
Instrument
Global Change Master Directory (GCMD) Instrument Keywords
CAMERAS
Platform
Global Change Master Directory (GCMD) Platform Keywords
Airplane > Airplane
Platform
Global Change Master Directory (GCMD) Platform Keywords
WORLDVIEW-2 > DigitalGlobe WORLDVIEW-2
Platform
Global Change Master Directory (GCMD) Platform Keywords
WORLDVIEW-3 > DigitalGlobe WORLDVIEW-3
Theme
Change Detection Analysis
Theme
Land Cover Analysis
Theme
Remotely Sensed Imagery/Photos
Spatial
Coastal Zone
Spatial
St. Croix, United States Virgin Islands
Office for Coastal Management
Charleston
SC
Data Set
5 years
Map (digital)
Users must assume responsibility to determine the usability of these data.
49382
Layer_1
Layer_1
Published / External
Completed
Island of St. Croix, United States Virgin Islands collected 2011-2012. | Description Source: unknown
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
Change Description
VARCHAR
No
No
Active
Landcover Change from circa 2007 to circa 2012
NOAA Coastal Change Analysis Program (C-CAP): Guidance for Regional
Implementation | Description Source: Dobson, J. et al, NOAA Coastal Change Analysis Program (C-CAP):
Guidance for Regional Implementation, NOAA Technical
Report NMFS (National Marine Fisheries Service) 123, U.S. Department of Commerce, April
1995
1: Unclassified to Unclassified | 2: Unclassified to Impervious | 3: Unclassified to Unclassified | 4: Unclassified to Unclassified | 5: Unclassified to Open Space Developed | 6: Unclassified to Cultivated Land | 7: Unclassified to Pasture/Hay | 8: Unclassified to Grassland | 9: Unclassified to Deciduous Forest | 10: Unclassified to Evergreen Forest | 11: Unclassified to Mixed Forest | 12: Unclassified to Scrub/Shrub | 13: Unclassified to Palustrine Forested Wetland | 14: Unclassified to Palustrine Scrub/Shrub Wetland | 15: Unclassified to Palustrine Emergent Wetland | 16: Unclassified to Estuarine Forested Wetland | 17: Unclassified to Estuarine Scrub/Shrub Wetland | 18: Unclassified to Estuarine Emergent Wetland | 19: Unclassified to Unconsolidated Shore | 20: Unclassified to Bare Land | 21: Unclassified to Water | 22: Unclassified to Palustrine Aquatic Bed | 23: Unclassified to Estuarine Aquatic Bed | 24: Unclassified to Tundra | 25: Unclassified to Snow/Ice | 26: Impervious to Unclassified | 27: Impervious to Impervious | 28: Impervious to Unclassified | 29: Impervious to Unclassified | 30: Impervious to Open Space Developed | 31: Impervious to Cultivated Land | 32: Impervious to Pasture/Hay | 33: Impervious to Grassland | 34: Impervious to Deciduous Forest | 35: Impervious to Evergreen Forest | 36: Impervious to Mixed Forest | 37: Impervious to Scrub/Shrub | 38: Impervious to Palustrine Forested Wetland | 39: Impervious to Palustrine Scrub/Shrub Wetland | 40: Impervious to Palustrine Emergent Wetland | 41: Impervious to Estuarine Forested Wetland | 42: Impervious to Estuarine Scrub/Shrub Wetland | 43: Impervious to Estuarine Emergent Wetland | 44: Impervious to Unconsolidated Shore | 45: Impervious to Bare Land | 46: Impervious to Water | 47: Impervious to Palustrine Aquatic Bed | 48: Impervious to Estuarine Aquatic Bed | 49: Impervious to Tundra | 50: Impervious to Snow/Ice | 51: Unclassified to Unclassified | 52: Unclassified to Impervious | 53: Unclassified to Unclassified | 54: Unclassified to Unclassified | 55: Unclassified to Open Space Developed | 56: Unclassified to Cultivated Land | 57: Unclassified to Pasture/Hay | 58: Unclassified to Grassland | 59: Unclassified to Deciduous Forest | 60: Unclassified to Evergreen Forest | 61: Unclassified to Mixed Forest | 62: Unclassified to Scrub/Shrub | 63: Unclassified to Palustrine Forested Wetland | 64: Unclassified to Palustrine Scrub/Shrub Wetland | 65: Unclassified to Palustrine Emergent Wetland | 66: Unclassified to Estuarine Forested Wetland | 67: Unclassified to Estuarine Scrub/Shrub Wetland | 68: Unclassified to Estuarine Emergent Wetland | 69: Unclassified to Unconsolidated Shore | 70: Unclassified to Bare Land | 71: Unclassified to Water | 72: Unclassified to Palustrine Aquatic Bed | 73: Unclassified to Estuarine Aquatic Bed | 74: Unclassified to Tundra | 75: Unclassified to Snow/Ice | 76: Unclassified to Unclassified | 77: Unclassified to Impervious | 78: Unclassified to Unclassified | 79: Unclassified to Unclassified | 80: Unclassified to Open Space Developed | 81: Unclassified to Cultivated Land | 82: Unclassified to Pasture/Hay | 83: Unclassified to Grassland | 84: Unclassified to Deciduous Forest | 85: Unclassified to Evergreen Forest | 86: Unclassified to Mixed Forest | 87: Unclassified to Scrub/Shrub | 88: Unclassified to Palustrine Forested Wetland | 89: Unclassified to Palustrine Scrub/Shrub Wetland | 90: Unclassified to Palustrine Emergent Wetland | 91: Unclassified to Estuarine Forested Wetland | 92: Unclassified to Estuarine Scrub/Shrub Wetland | 93: Unclassified to Estuarine Emergent Wetland | 94: Unclassified to Unconsolidated Shore | 95: Unclassified to Bare Land | 96: Unclassified to Water | 97: Unclassified to Palustrine Aquatic Bed | 98: Unclassified to Estuarine Aquatic Bed | 99: Unclassified to Tundra | 100: Unclassified to Snow/Ice | 101: Open Space Developed to Unclassified | 102: Open Space Developed to Impervious | 103: Open Space Develope
Data Steward
2015-01-30
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Distributor
2015-01-30
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2015-01-30
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2015-01-30
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Acquisition date of the Microsoft UltraCAM X (2011 flights) and a Z/I Imaging DMC-II 230 (2012 flights) images.
-64.905956
-64.563847
17.788029
17.676339
Range
2007-03-11
2012-01-01
Yes
3
Point
No
Row
9497
Column
11754
Vertical
1
Unclassified
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.
https://coast.noaa.gov/htdata/raster1/landcover/bulkdownload/hires
Online Resource
2017-02-22
Date that the source FGDC record was last modified.
2017-11-14
Converted from FGDC (Federal Geographic Data Committee) CSDGM (Content Standard for Digital Geospatial Metadata) (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.
2018-02-08
Partial upload of Positional Accuracy fields only.
2018-03-13
Partial upload to move data access links to Distribution Info.
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.1 SP 1
Attribute_Accuracy_Report
12 meters CE90
There was no terrain correction in the geo-referencing
procedure.
Data does not exist for all classes.
Many classes of from-to change never occurred in St. Croix.
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.
C-CAP St. Croix, United States Virgin Islands 2007-2012 Land Cover Change Analysis
Dewberry. www.dewberry.com
2015-01-30
Range
2007-03-11
2012-01-01
https://coast.noaa.gov/dataviewer/#/imagery/search/where:ID=4960
NOAA CSC | Source Geospatial Form: remote-sensing image | Type of Source Media: CD-ROM
1
Process_Description
This dataset, and the 2012-era classification was created by Dewberry. The 2007-era C-CAP classification was created by Sanborn.
This dataset contains the classifications of 2007 imagery and 2012 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 521 possible from-to change combinations. In this section of the metadata, the 2007 classification procedure is described, then the 2012 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 (2007-era) Classification:
Pre-processing steps: The ADS40 was provided to Sanborn as a geo-referenced product. Sanborn performed a quality control on the imagery to check for pixel dropouts and other image issues. Individual image tiles were combined to create a single image for the entire island. The early date (2003-era) classification was created first using satellite data because at the time it was the most recent, cloud free imagery available. The late date (2007-era) ADS40 became available shortly after the early date classification was completed. The ADS40 imagery was found to have ortho-rectification accuracy. The 2003-era classifications and imagery were geo-rectified to co-register with the ADS40 imagery.
Change Detection: Once the images were aligned, the next step was to determine the areas of change between the 2003-era and 2007-era data. Since the 2003-era classification was already complete, it is only necessary to classify the areas of change to create a 2007-era classification of the same specifications. The 2007 ADS40 imagery was segmented with the 2003 land cover classification as a hard boundary delimter. Logical rulesets and thresholding based on the spectral properties of the imagery and the early date classification were used to generate a mask of potential change. The change mask was incorporated into the early date classification to create the draft late date classification. This map was further revised with rulesets and thresholding. The final step before map finalization was to remove inaccuracies through manual segment labeling as interpreted by an analyst. Sanborn used independent reviewer's comments to further refine the land cover map.
2014-12-31T00:00:00
2
Map Finalization - Sanborn used independent reviewers comments to further refine the land cover map.
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 Aquatic Bed
23 Estuarine Aquatic Bed
24 Tundra
25 Snow/Ice
Late Date (2012) Classification:
This section outlines the classification procedure for the St. Croix High Resolution C-CAP performed by Dewberry. The color-infrared imagery used in producing this land cover product was also utilized in producing an associated impervious surfaces layer for the island. This land cover is based on the 2007 high resolution St. Croix C-CAP dataset. Changes were identified using aerial photo interpretation of the 2007 dataset against the 2011-2012 imagery. 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.
Pre-processing steps:
The 2011-2012 color-infrared imagery utilized for this project was provided from the USACE as an orthorectified, georeferenced product. The imagery was reviewed for radiometric errors, pixel dropouts, and other image issues. Individual image tiles were merged into a single mosaic and re-sampled from the native 1-foot spatial resolution to 1m.
Classification:
The 2007 C-CAP dataset was over-laid with semi-transparency on the 2011-2012 color-infrared imagery. It was panned at a scale of 1:5,000 and manually updated to match features in the 2011-2012 imagery. Analysts zoomed in to a larger scale when necessary to perform edits. The product went through a QC procedure to ensure features were accurately captured.
Map Finalization - Dewberry used independent reviewer's comments to further refine the land cover map.
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 2007 and 2012 datasets as inputs. The algorithm generates a from-to file where each combination is uniquely labeled from 1 to 625.
2014-12-31T00:00:00
3
Metadata imported
2014-12-31T00:00:00
49382
Entity
Layer_1
gov.noaa.nmfs.inport:48360
Anne Ball
2017-11-14T14:39:08
SysAdmin InPortAdmin
2023-07-03T17:07:51
2018-03-13
Office for Coastal Management
OCM
1002
Public
No
2018-03-13
1 Year
2019-03-13