Land Cover 2001 (SC)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

Department of Commerce (DOC), National Oceanographic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)

Publication_Date: 20070808

Title: Land Cover 2001 (SC)

Geospatial_Data_Presentation_Form: remote-sensing image

Publication_Information:

Publication_Place: Charleston, SC

Publisher: NOAA's Ocean Service, Coastal Services Center (CSC)

Other_Citation_Details:

This Classification is based on Landsat TM scenes: 1435_092399,1435_030100,1435_050400,1436_052000,1436_103001,1436_032302,1535_093099,1535_030800,1535_051401,1536_022100,1536_051100,1536_110601,1537_110601,1537_022602,1537_060202,1635_100799,1635_030502,1635_060902,1636_111000,1636_030502,1636_060902,1637_102399,1637_030502,1637_052402,1638_102399,1638_021702,1638_052402,1639_111000,1639_042701,1639_021702,1640_040301,1640_082501,1640_021702,1736_061000,1736_022402,1737_060100,1737_100301,1737_022402,1738_050900,1738_100301,1738_022402,1739_101600,1739_022402,1739_061602,1740_101600,1740_022402,1740_032802,1837_122499,1837_043000,1837_102601,1838_122499,1838_043000,1838_100201,1839_021000,1839_060100,1839_100201,1937_051801,1937_100101,1937_012403,1938_051801,1938_100101,1938_012403,1939_100101,1939_071602,1939_010803}

Description:

Abstract:

This data set contains the 2001-era or late-date classifications of the SE Atlantic, zone 55 and zone 58. This imagery was collected as part of the Multi-Resolution Land Characteristics program in a multi-agency effort to provide baseline multi-scale environmental characteristics and to monitor environmental change. This data set utilized full or partial Landsat 5 and 7 Thematic Mapper and Enhanced Thematic Mapper scenes which were analyzed according to the Coastal Change Analysis Program (C-CAP) protocol to determine land cover.

Purpose:

To improve the understanding of coastal uplands and wetlands, and their linkages with the distribution, abundance, and health of living marine resources.

Supplemental_Information:

The metadata in this record is for USGS zone 55 and zone 58, which includes parts of North Carolina, South Carolina, Georgia and Florida.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990923

Ending_Date: 20030124

Currentness_Reference: Date of the Landsat scenes

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Continually

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -84.075143

East_Bounding_Coordinate: -77.948058

North_Bounding_Coordinate: 35.649044

South_Bounding_Coordinate: 31.632974

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: ImageryBaseMapsEarthCover

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Land Cover Analysis

Theme_Keyword: Remotely Sensed Imagery/Photos

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: SE United States

Place_Keyword: Coastal Zone

Place_Keyword: North Carolina

Place_Keyword: South Carlina

Place_Keyword: Georgia

Place_Keyword: Florida

Access_Constraints: None, except for a possible fee.

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.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NOAA Coastal Services Center

Contact_Person: Metadata Specialist

Contact_Position: Metadata Specialist

Contact_Address:

Address_Type: mailing and physical address

Address: 2234 S Hobson Ave.

City: Charleston

State_or_Province: SC

Postal_Code: 29405

Country: USA

Contact_Voice_Telephone: 843-740-1200 843-740-1210

Contact_Facsimile_Telephone: 843-740-1224

Contact_Electronic_Mail_Address: csc@csc.noaa.gov

Hours_of_Service: 8:00 am to 5:00 pm EST.

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.0.1770

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

According to an accuracy assessment performed by Sanborn, the overall accuracy is 81.2% and 0.793 Kappa. The accuracy results shown below are from US Coastal zones 55/58. A total of 1508 points are located in US Coastal zones 55/58. Each class accuracy is as follows: (Errors of Omission/Commission) 0 Background (N/A) 1 Unclassified (Cloud, Shadow, etc)(N/A) 2 High Intensity Developed (79.2%/79.2%) 3 Medium Intensity Developed (52.8%/37.3%) 4 Low Intensity Developed (45.8%/57.9%) 5 Open Spaces Developed (78.3%/85.5%) 6 Cultivated Land (86.4%/93.7%) 7 Pasture/Hay (80.6%/74.6%) 8 Grassland (71.1%/60.4%) 9 Deciduous Forest (48.8%/63.6%) 10 Evergreen Forest (92.7%/96.6%) 11 Mixed Forest (40.7%/44%) 12 Scrub/Shrub (60.3%/67.7%) 13 Palustrine Forested Wetland (88.3%/82.5%) 14 Palustrine Scrub/Shrub Wetland (71%/72.1%) 15 Palustrine Emergent Wetland (77.6%/75%) 16 Estuarine Forested Wetland (N/A) 17 Estuarine Scrub/Shrub Wetland (100%/100%) 18 Estuarine Emergent Wetland (100%/95.3%) 19 Unconsolidated Shore (100%/84.8%) 20 Bare Land (93.8%/77.9%) 21 Water (90.1%/100%) 22 Palustrine Aquatic Bed (100%/50%) 23 Estuarine Aquatic Bed (N/A) 24 Tundra (N/A) 25 Snow/Ice (N/A
The validation points were both collected in the field and photo interpreted. The sites were selected to capture the physical and spectral diversity of the land cover. Because the starting point for this classification was the NLCD data produced by the Southeast GAP, this data layer was utilized in identifying potential AA sites. Segments created with Definiens software were buffered in one pixel to eliminate edge effect. Segments smaller than the assessment's minimum mapping unit of 3x3 pixels were eliminated. The remaining segments were summarized by the NLCD data and segments with a majority class equaling less than 90% were removed. The remaining segments were entered into the pool of potential AA sites. The field sampling then focused on labeling these segments with the goal being to collect a minimum number of 50 samples per class with samples stratified geographically to ensure that the diversity of the landscape and imagery was captured. Sites collected in the field were then verified in the office using the triple date imagery to ensure consistency with all dates, and classes with less than 50 samples were supplemented with photo interpreted sites. For some classes, the minimum of 50 sites could not be achieved and as many sites as possible were used. These classes and their actual sample numbers are: Deciduous Forest (33); Mixed Forest (25); Estuarine Forested Wetland (0); Estuarine Scrub/Shrub Wetland (2); Palustrine Aquatic Bed (6); Estuarine Aquatic Bed (0). These classes are either rare or scattered in the area making it difficult to locate homogeneous sites for these classes. Accuracy assessment sites were QC'd to ensure that edge effects, heterogeneity, and sample size would not adversely affect the assessment. In addition as some of the class definitions were refined through the draft review processes, the AA database was updated to reflect these changes. A total of 1,292 accuracy assessment points were used excluding urban classes.
Post-Processing Steps: None Known Problems: None Spatial Filters: None

Quantitative_Attribute_Accuracy_Assessment:

Attribute_Accuracy_Value: 81.2%

Attribute_Accuracy_Explanation: See Attribute_Accuracy_Report above

Logical_Consistency_Report:

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.

Completeness_Report:

Data does not exist for all classes. All pixels have been classified. The NOAA Coastal Change Analysis Program (C-CAP): Guidance for Regional Implementation, NOAA National Marine Fisheries Service Report 123, discusses the interagency effort to develop the land cover classification scheme and defines all categories.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Landsat scenes were georeferenced by Eros Data Center (EDC). Spatial accuracy assessed by Sanborn is found to be to 2 pixels accuracy or less.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

There was no terrain correction in the geo-referencing procedure.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)

Publication_Date: 20070808

Title: C-CAP zone 55/58 2001 Era Land Cover

Geospatial_Data_Presentation_Form: remote-sensing image

Publication_Information:

Publication_Place: Charleston SC

Publisher: NOAA's Ocean Service, Coastal Services Center (CSC)

Online_Linkage: <http://www.csc.noaa.gov/crs/landcover>

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990923

Ending_Date: 20030124

Source_Currentness_Reference: Date of the Landsat scenes

Source_Citation_Abbreviation: NOAA CSC

Source_Contribution: NOAA CSC

Process_Step:

Process_Description:

This section outlines the classification procedure for zones 55/58 C-CAP Late Date (2000 ERA) classification. Three image mosaics were used for this classification each from a different phenological season: leaf-on,leaf-off and spring, with each mosaic comprised of varying scene dates within the season. The three dates of imagery were first reviewed for image quality and shifts between image dates. Unlike many other zones, zone 55 and 58 began with an initial GAP classification. This provided a starting point for the classification, with initial data review focusing on differences in land cover class definitions. Local and regional differences were dentified and these issues were then systematically processed using standard image analysis techniques, both automated and manual, to refine and improve the dataset. There were 2 major versions of this map prior to the final product: the provisional map and the contractor final. The provisional map was the direct result of automated modeling efforts, such as agricultural homogeneity models, on the initial Southeast GAP dataset. This provisional product was then reviewed by NOAA to provide initial feedback on the classification. The second product, the contractor final, was the result of incorporating the comments from the provisional product and continued modeling and editing of the dataset to improve the quality and consistency of the land cover classfication. This version also incorporated a NOAA refinement to the impervious dataset. The contractor final dataset was reviewed by NOAA and their few remaining comments incorporated into the final product. At this time, the product was also edgematched to neighboring zones producing the final product described here. Pre-processing steps: Each Landsat TM scene was geo-referenced by USGS (United States Geological Survey) EROS Data Center. The Sanborn staff reviewed the spectral and spatial quality of the imagery. Areas that were greater than 1-2 pixels off were sent back to USGS for reprocessing. The data was geo-referenced to Albers Conical Equal Area, with a spheroid of GRS 1980, and Datum of NAD83. The data units is in meters. The data included three dates of TM- leaf-on, leaf-off, and spring. For each date of TM, spectral and tasseled cap data were received.
Field-Collected Data: The goals of the field data collection were to sample the diversity of the landscape, within the classes, and among image dates. Because this product began with the classification from Southeast GAP, the field data collection was targeted more at visiting as many varying sites as possible throughout the study area to identify trends where the initial classification varied from the NOAA scheme. To meet these goals, Sanborn used laptop computers and GPS (Global Positioning System) to accurately locate field points on the TM imagery. Software downloaded from the Minnesota's Department of Natural Resources (DNR) was used to connect the Garmin GPS to the laptop computer and ESRI's ArcView software. An ArcMap application developed by Sanborn allowed rapid and accurate entry of field point locations and accompanying notes. These data were stored in a shapefile which could be easily displayed over the classification during reviews as well as being used in data assessment routines. Both general assessment and validation points were collected together. See the accuracy assessment section to see how the points were split into general assessment and validation points. Items that were collected were: Land Cover characterization Special conditions and remarks Photograph Number if applicable Date/time location The data and equipment used for the fieldwork are as follows: Ancillary datasets: NLCD - mosaicked into zones State road map and Delorme state atlas www.delorme.com Existing 2001 C-CAP dataset Hardware: with ArcView/ArcGIS and data GARMIN GPS modules and external antennae, redundant data cables Cameras devices (Floppy Drives, CD Burners, external HDD) Extra batteries (lap-top and GPS) Mobile phones System backup CD's with data and software Compass notebooks with instructions and road maps with pre-determined routes Wetland and Vegetation Field Guides Image data for each zone Initial classifications Classification: After the field points were collected, they were combined with photo-interpreted points and used to assess correlations and discrepancies between the initial GAP classes and the NOAA classification scheme. Where adjustments needed to be made spectral layers and their derivatives such as tasseled cap and NDVI images, along with ancillary datasets such as DEM, slope, aspect, texture, NWI, and SRTM were used in local and regional models to refine the classificaition. These models resulted in the provisional dataset for this classification, which was deliverd to NOAA for review. Additional refinements in modeling along with manual editing were used to improve the dataset and to address comments from NOAA's review of the provisional dataset. Independently of this process, impervious data layers for zones 55/58 were created. This layer was developed from Regression Tree and used impervious classifications from IKONOS imagery to predict pixel level percent impervious at the TM pixel level. The continuous percent impervious data was thresholded to produce the developed categories and imbedded into this product to produce the contractor final product, which was again reviewed by NOAA. Incorporation of these final comments from NOAA along with edgematching to neighboring zones produced the final z55/z58 C-CAP classification. Attributes for this product are as follows- 0 Background 1 Unclassified (Cloud, Shadow, etc) 2 High Intensity Developed 3 Medium Intensity Developed 4 Low Intensity Developed 5 Open Spaces Developed 6 Cultivated Land 7 Pasture/Hay 8 Grassland 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 Water 22 Palustrine Aquatic Bed 23 Estuarine Aquatic Bed 24 Tundra (N/A) 25 Snow/Ice (N/A) Ancillary Datasets: Non-TM image datasets used are DEM (Digital Elevation Model), slope, aspect, positional index, NWI, NLCD, SRTM, field-collected points, photo-interpreted points, zone 55/58 GAP reclassified by NOAA (Gap Analysis Program),Census data (housing and population density), Ecoregions, 2001 C-CAP Map
QA/QC Process: There were several QA/QC steps involved in the creation of this product. An internal QA/QC was completed prior to each delivery. This was done by viewing the classification frame-by-frame along with the TM imagery, the classification, and high resolution reference imagery. NOAA staff completed similar reviews for each delivery and provided both general and point specific comments.

Process_Date: 03232006 - 01292007

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: CRS (Coastal Remote Sensing) Program Manager

Contact_Organization:

NOAA Coastal Services Center Coastal Change Analysis Program (C-CAP)

Contact_Position: CRS Program Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 2234 S. Hobson Ave.

City: Charleston

State_or_Province: SC

Postal_Code: 29405

Country: USA

Contact_Voice_Telephone: 843-740-1210

Contact_Facsimile_Telephone: 843-740-1224

Contact_Electronic_Mail_Address: clearinghouse@csc.noaa.gov

Hours_of_Service: 8:00 am to 5:00 p.m. EST. M-F

Process_Step:

Process_Description: Metadata imported.

Process_Date: 20090127

Process_Time: 17152400

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 11797

Column_Count: 17998

Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000000

Longitude_Resolution: 0.000000

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: sc_01_geo.img.vat

Entity_Type_Definition:

US coastal zone 55/58 as delineated by NOAA using scene boundaries, hydrological units, and county boundaries

Entity_Type_Definition_Source: unknown

Attribute:

Attribute_Label: OID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Value

Attribute:

Attribute_Label: Count

Attribute:

Attribute_Label: Red

Attribute:

Attribute_Label: Green

Attribute:

Attribute_Label: Blue

Attribute:

Attribute_Label: Class_name

Attribute:

Attribute_Label: Opacity

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NOAA Coastal Services Center

Contact_Person: Clearinghouse Manager

Contact_Position: Clearinghouse Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 2234 South Hobson Avenue

City: Charleston

State_or_Province: SC

Postal_Code: 29405-2413

Country: USA

Contact_Voice_Telephone: (843)740-1210

Contact_Facsimile_Telephone: (843)740-1224

Contact_Electronic_Mail_Address: clearinghouse@csc.noaa.gov

Hours_of_Service: Monday-Friday, 8-5 EST

Resource_Description: Downloadable Data

Distribution_Liability:

Users must assume responsibility to determine the usability of these data.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ERDAS Imagine image file (.img)

Transfer_Size: 0.000

Digital_Transfer_Option:

Offline_Option:

Offline_Media: CD-ROM

Recording_Format: ISO 9660

Compatibility_Information:

ISO 9660 format allows the CD-ROM to be read by most computer operating systems.

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20090128

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NOAA Coastal Services Center

Contact_Person: Metadata Specialist

Contact_Position: Metadata Specialist

Contact_Address:

Address_Type: Mailing and physical address

Address: 2234 S Hobson Ave.

City: Charleston

State_or_Province: SC

Postal_Code: 29405

Country: USA

Contact_Voice_Telephone: 843-740-1210

Contact_Facsimile_Telephone: 843-740-1224

Contact_Electronic_Mail_Address: csc@csc.noaa.gov

Hours_of_Service: 8:00 am to 5:00 pm EST.

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile