2001 Habitat Data for Carbon Sequestration

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: US Geological Survey, National Wetlands Research Center

Publication_Date: 2005

Title: 2001 Habitat Data for Carbon Sequestration

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Lafayette, LA

Publisher: US Geological Survey, National Wetlands Research Center

Description:

Abstract:

The amount of carbon dioxide (CO2) emitted to the atmosphere, because of expanding use of fossil fuels for energy, is expected to increase over the next century. Management of carbon to reduce these effects is needed. Carbon sequestration in terrestrial ecosystems is approximately 2 GtC/year. One method of management is to increase the sequestration of carbon in vegetation and soils, which offers the following benefits: improved water and soil quality, reduction of soil erosion and nutrient loss, and better wildlife habitats. Estimating the amount of carbon sequestered in terrestrial ecosystems is difficult because of the biogeochemical dynamics that control the flow of carbon among plants, soils and the atmosphere. The main goal of this study is combine GIS mapping techniques with ongoing field studies to better determine the amount of carbon being sequestered in backwater swamps. This carbon figure could be used by carbon scientists around the world to help assess carbon sequestration on a global scale. This data set consists of the 2001 habitat data for thestudy area in the Atchafalaya Basin in Louisiana. It was mapped according to the Cowardin classification.

Purpose:

To provide habitat information for the Carbon sequestration project.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 91.75

East_Bounding_Coordinate: 91.25

North_Bounding_Coordinate: 30.25

South_Bounding_Coordinate: 29.825

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Carbon sequestration

Theme_Keyword: habitat

Theme_Keyword: vegetation

Theme_Keyword: wetlands

Theme_Keyword: uplands

Theme_Keyword: GIS

Theme_Keyword: mapping

Theme_Keyword: geographic information system

Theme_Keyword: carbon

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Louisiana

Place_Keyword: Iberville Parish

Place_Keyword: Atchafalaya Basin

Place_Keyword: Catahoula

Place_Keyword: Loreauville

Place_Keyword: Charenton

Place_Keyword: Jackass Bay

Place_Keyword: Lake Mongoulois

Place_Keyword: Grand River

Place_Keyword: Lake Chicot

Place_Keyword: Centerville NW

Place_Keyword: Centerville NE

Place_Keyword: Bayou Sorrel

Place_Keyword: Pigeon

Access_Constraints:

It is strongly recommended that this data is directly acquired from the distributor described above or from another USGS Biological Resources Division server and not indirectly through other sources which may have changed the data in some way. The distributor makes no claims as to the data's suitability for other purposes.

Use_Constraints:

Acknowledgement of the U.S. Geological Survey, National Wetlands Research Center as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of this data. Sharing new data layers developed directly from these data would also be appreciated by U.S. Geological Survey, National Wetlands Research Center staff. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. These data are not legal documents and are not to be used as such.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: US Geological Survey, National Wetlands Research Center

Contact_Person: Steve Hartley

Contact_Position: Senior Geographer

Contact_Address:

Address_Type: mailing and physical address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: LA

Postal_Code: 70506

Country: USA

Contact_Voice_Telephone: 337 266-8543

Contact_Facsimile_Telephone: 337 266-8916

Contact_Electronic_Mail_Address: steve_hartley@usgs.gov

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The accuracy of the attributes is dependent on the expertise of the photointerpreter and the processes involved in converting the delineation to digital form. All work conducted by the photointerpreter is double-checked by another photointerpreter. Habitat data from another time period was used for general reference. Upon conversion to a digital form, an on-screen comparison with the hard copy data is performed. The accuracy of these data is believed to be high, although no formal assessment was done.

Logical_Consistency_Report:

Data are inherently polygonal. ArcGIS software is used to create and maintain topological relationships between features. Polygonal features begin and end at the same point, contain no overshoots or undershoots, and contain a single label. Linear features are continuous where appropriate, i.e., dangling arcs are removed if they are not required.

Completeness_Report:

All photo-interpretable wetlands are identified and mapped using standard methodologies and equipment for the photo interpretation phases of the data development. In the upland areas, 1/4 acre wetlands generally are mapped. In coastal marsh, swamps, and bottomland hardwood areas, small open water and emergent wetlands are mapped. In general, the minimum mapping unit is from 1 to 3 acres depending of the wetland type and the scale and emulsion of the source aerial photography. Some small wetlands, densely broken marsh, and those wetlands obscured by dense forest cover may not be included in this data set. Processing of the digital data also follows conventions and standard methodologies for the time period and within limitations of available workstation equipment at the date of data development. Processing follows standard operating procedures as used, developed, and shared by the National Wetlands Inventory of the U.S. Fish and Wildlife Service. Data products were completed using similar systems and methodologies which are used by NWI and by USGS.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

For reference points accuracy, the accuracy for the digital data are tested by visual comparison of the source with hard copy maps, and by understanding of the hardware tolerances and processing values reported by the software used in data development. Additional checks on comparison were possible when georeferencing/rectification was done using the USGS maps, which cite National Mapping Accuracy Standard compliance.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: US Geological Survey, Geography Division

Publication_Date: 1998

Title: 1998 Digital Orthophoto quadrangles

Geospatial_Data_Presentation_Form: raster digital data

Publication_Information:

Publication_Place: Sioux Falls, SD

Publisher: US Geological Survey, Geography Division

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: DOQQ

Source_Contribution: The data source for habitat delineation transfer

Source_Information:

Source_Citation:

Citation_Information:

Originator: US National Aeronautics and Space Administration (NASA)

Publication_Date: 2001

Title: 2001 Color Infrared Aerial Photography

Geospatial_Data_Presentation_Form: raster digital data

Publication_Information:

Publication_Place: Ames,CA

Publisher: NASA

Source_Scale_Denominator: 30600

Type_of_Source_Media: stable-base material

Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20010321

Single_Date/Time:

Calendar_Date: 20010210

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: NASA CIR

Source_Contribution: The primary data source for the habitat delineation

Source_Information:

Source_Citation:

Citation_Information:

Originator: US Fish and Wildlife Service, National Wetlands Inventory

Publication_Date: 1988

Title: 1988 National Wetlands Inventory

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: St. Petersburg, FL

Publisher: US Fish and Wildlife Service, National Wetlands Inventory

Online_Linkage: <http://nwi.fws.gov>

Source_Scale_Denominator: 24000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1988

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: NWI

Source_Contribution: Data used as a reference for habitat

Process_Step:

Process_Description:

The 1998 color infrared aerial photographs were photo interpreted for wetlands and uplands habitat classification. Habitat layers were overlaid on USGS DOQQs (which were compiled to form a larger base map).

Process_Date: 2004

Process_Step:

Process_Description:

The delineated hard copy map was scanned and attributed at the US Geological Survey, NWRC using an ideal FCS 8010 scanner, and ArcGIS ArcScan module.

Process_Date: 2004

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

Point_and_Vector_Object_Count: 20141

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Label point

Point_and_Vector_Object_Count: 5755

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 5755

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Point_and_Vector_Object_Count: 8

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 15

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: .9996

Longitude_of_Central_Meridian: -93.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 1

Ordinate_Resolution: 1

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.00

Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: carbon.pat

Attribute:

Attribute_Label: FID

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: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: AREA

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 154.984375

Range_Domain_Maximum: 1048954436.54522

Attribute_Units_of_Measure: units of coverage

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Perimeter of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 44.949553

Range_Domain_Maximum: 308022.704743

Attribute_Units_of_Measure: units of coverage

Attribute:

Attribute_Label: CARBON#

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

The unique identification number for each polygon. Although numerical in nature, there is no associated unit of measurement.

Attribute:

Attribute_Label: CARBON-ID

Attribute_Definition: User-defined feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

The user-defined identification number for each polygon. Although numerical in nature, there is no associated unit of measurement.

Attribute:

Attribute_Label: DATA

Attribute_Definition:

The wetland classification system is hierarchical with wetlands and deepwater habitats divided among 5 major systems at the broadest level. The five systems include Marine, Estuarine, Riverine, lacustrine, and Palustrine. These systems are further divided into subsystems which reflect hydrologic conditions. Below the subsystems are classes and subclasses describing vegetation or substrate, and modifiers relating to hydrology, soils, water chemistry, and man's activities.

Attribute_Definition_Source:

Cowardin, Lewis M., Virginia Carter, Francis Goblet, and Edward T. LaRoe. Classification of wetlands and deepwater habitats of the United States. U.S. Fish and Wildlife Service. Biological Services Program; FWS/OBS - 79/31. 103 pp. Customized classification which can be cross-referenced to Anderson, James R., Ernest E. Hardy, John T. Roach, and Richard T. Witmer. A Land Use and Land Cover Classification System for Use with Remote Sensor Data. Geological Survey Professional Paper 964. A revision of the land use classification system as presented in U.S. Geological Survey Circular 671. United States Government Printing Office, Washington: 1976

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: US Geological Survey, National Wetlands Research Center

Contact_Position: Database Administrator

Contact_Address:

Address_Type: mailing and physical address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: LA

Postal_Code: 70506

Country: USA

Contact_Voice_Telephone: 337 266-8500

Contact_Facsimile_Telephone: 337 266-8513

Resource_Description: Downloadable Data

Distribution_Liability:

Although these data have been processed successfully on a computer system at the U.S. Geological Survey, National Wetlands Research Center, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a Biological Resources Division server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. U.S. Geological Survey, National Wetlands Research Center shall not be held liable for improper or incorrect use of the data described and/or contained herein. So, these data are provided "as is" and without any express or implied warranties, including, without limitation, the implied warranties or merchantability and fitness for a particular purpose. Also, use of trade names or commercial products in this metadata is solely for the purpose of providing specific information, and does not imply recommendation or endorsement by the US Government. Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the U.S. Geological Survey, National Wetlands Research Center Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and U.S. Geological Survey, National Wetlands Research Center interests.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARCE

Format_Version_Number: 9+

Transfer_Size: 62.745

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://sabdata.nwrc.gov/index.asp>

Fees: None, if available online

Metadata_Reference_Information:

Metadata_Date: 20050214

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: US Geological Survey, National Wetlands Research Center

Contact_Address:

Address_Type: mailing and physical address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: LA

Postal_Code: 70506

Country: USA

Contact_Voice_Telephone: 337 266-8500`

Contact_Facsimile_Telephone: 337 266-8513

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Access_Constraints: None

Metadata_Use_Constraints:

Acknowledgement of the National Wetlands Research Center as the metadata source would be appreciated. Please cite the original metadata when using portions of the record to create a similar record of slightly altered data, such as reprojection.