2002 Mobile County, AL Habitat Data

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey, National Wetlands Research Center
Publication_Date: 2005
Title: 2002 Mobile County, AL Habitat Data
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Lafayette, LA
Publisher: U.S. Geological Survey, National Wetlands Research Center
Larger_Work_Citation:
Citation_Information:
Originator: Mobile Bay National Estuary Program
Publication_Date: 2002
Title: Science and Technical Projects
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: Mobile, AL
Publisher: Mobile Bay NEP
Online_Linkage: <http://www.mobilebaynep.com/Projects/projects%20science.htm>
Description:
Abstract:
This data set consists of digital data describing wetlands and uplands habitats for Mobile County in South Alabama for the year 2002. Wetlands were classified using the Cowardin, et al., wetland classification scheme to the level of salinity modifiers. Uplands were classified using a customized classification scheme which can be cross-referenced to Anderson, et al.. The habitats were derived from interpretation of color infrared photography, mapped at 1:24,000. The Mobile County project includes all 37 USGS (7.5 minute series) quadrangles located within the county line.
Purpose:
The intended use of this data set is to provide information to aid efforts in the conservation, restoration, creation, and enhancement of Alabama's coastal wetlands. The habitat data is used for an on going National Wetland Inventory project on time comparisons.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2002
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -88.256654
East_Bounding_Coordinate: -87.994506
North_Bounding_Coordinate: 31.251035
South_Bounding_Coordinate: 30.747695
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: habitat
Theme_Keyword: wetland
Theme_Keyword: upland
Theme_Keyword: photointerpretation
Theme_Keyword: Cowardin Classification
Theme_Keyword: Anderson Classification
Theme_Keyword: mapping
Theme_Keyword: map
Theme_Keyword: marsh
Theme_Keyword: restoration
Theme_Keyword: protection
Theme_Keyword: coastal
Theme_Keyword: scanning
Theme_Keyword: cartography
Theme_Keyword: GIS
Theme_Keyword: quadrangle
Theme_Keyword: 7.5 minute quadrangle
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Alabama
Place_Keyword: Coastal Alabama
Place_Keyword: South Alabama
Place_Keyword: Mobile County
Place_Keyword: Deer Park
Place_Keyword: Sims Chapel
Place_Keyword: Calvert
Place_Keyword: Brown Town
Place_Keyword: Citronelle West
Place_Keyword: Citronelle East
Place_Keyword: Mount Vernon
Place_Keyword: Bilbo Island
Place_Keyword: Stiggins Lake
Place_Keyword: Earlville
Place_Keyword: Georgetown
Place_Keyword: Chunchula
Place_Keyword: Creola
Place_Keyword: The Basin
Place_Keyword: Hurricane
Place_Keyword: Chickasaw
Place_Keyword: Kushla
Place_Keyword: Semmes
Place_Keyword: Mobile
Place_Keyword: Spring Hill
Place_Keyword: Tanner Williams
Place_Keyword: Hurley
Place_Keyword: Hollingers Island
Place_Keyword: Theodore
Place_Keyword: St. Elmo
Place_Keyword: Big Point
Place_Keyword: Bellefontaine
Place_Keyword: Coden
Place_Keyword: Grand Bay
Place_Keyword: Kreole
Place_Keyword: Little Dauphin Island
Place_Keyword: Heron Bay
Place_Keyword: Isle Aux Herbes
Place_Keyword: Grand Bay SW
Place_Keyword: Fort Morgan
Place_Keyword: Fort Morgan NW
Place_Keyword: Petit Bois Island
Access_Constraints:
It is strongly recommended that these data are directly acquired from the distributor described in the distribution section of this metadata record or from another USGS server and not indirectly through other sources which may have changed the data in some way. The distributor makes no claim as to the data's suitability for other purposes.
Use_Constraints:
Acknowledgement of the USGS, National Wetlands Research Center as a data source would be appreciated in products developed from these data, and such acknowledgement as is standard for citation and legal practices for data sources is expected by users of these data. 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 these 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: U.S. Geological Survey, National Wetlands Research Center
Contact_Person: Larry Handley
Contact_Position: 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: 337 266-8691
Contact_Facsimile_Telephone: 337 266-8513
Contact_Electronic_Mail_Address: larry_handley@usgs.gov
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.1.0.722
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. 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:
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:
For the cartographic process (photointerpretation), accordance with nationally accepted mapping standards and conventions are followed. For the digital conversion process, conventions and standard check list methodologies in place for the time period were followed.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The accuracy of the horizontal positions is based on the accuracy of the georeferenced data source (which can be USGS DOQQs, DEMS, flight line center points, and/or calibration reports). The sources used vary from project to project. All USGS Mapping products adhere to the National Mapping Accuracy Standard.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Originator: National Aerial Photography Program
Publication_Date: 2002
Title: 2002 NAPP CIR Aerial photography
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: USGS
Source_Scale_Denominator: 40000
Type_of_Source_Media: Stable-based material
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2002
Source_Currentness_Reference: Date of source photography
Source_Contribution:
The primary data source for photo-interpretation and identification of habitat data
Source_Information:
Source_Citation:
Citation_Information:
Originator: U. S. Geological Survey
Publication_Date: 2002
Title: 2002 Mobile County Digital Orthophoto Quadrangles
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey, Mapping Division
Source_Scale_Denominator: 24000
Type_of_Source_Media: raster data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Contribution: Served as base maps for the transfer of habitat linework
Process_Step:
Process_Description:
Cartographic Process - After acquiring aerial photography for the project area, stereo pairs were created and packaged according to the project boundaries. Maps for cartographic transformation were generated, using the same aerial photography, through means of rectification and mosaicking. The photos were interpreted using a Bausch and Lomb stereoscope at 10x magnification. Cartographic work was performed using a Zoom Transfer Scope, and magnification varied according to the scale of the source data (photography). All cartographic and photointerpretation processes adhere to National Wetlands Inventory (NWI) standards
Process_Date: 2004
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, National Wetlands Research Center
Contact_Person: Larry Handley
Contact_Position: 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: 337 266-8500
Contact_Facsimile_Telephone: 337 266-8616
Contact_Electronic_Mail_Address: larry_handley@usgs.gov
Process_Step:
Process_Description:
Digital conversion - The mylar-based, hard copy maps were scanned, georeferenced and vectorized at the US Geological Survey, National Wetlands Research Center using an Ideal FCS 8010 scanner, ArcGIS georeferencing module and ArcScan vector conversion software.
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, National Wetlands Research Center
Contact_Person: Steve Hartley
Contact_Position: 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: 337 266-8500
Contact_Facsimile_Telephone: 337 266-8616
Contact_Electronic_Mail_Address: steve_hartley@usgs.gov
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Coastal Louisiana
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: 23115
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 0
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 8332
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 0
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 16
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -87.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000404
Ordinate_Resolution: 0.000404
Planar_Distance_Units: meters
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:
Overview_Description:
Entity_and_Attribute_Overview:
Along with the associated topological attributes, the main attribute in this data set is the Habitat - This is the habitat classification for the area (to include polygonal and linear features). Wetlands are lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface of the land is covered by shallow water. Uplands are terrestrial systems that do not exhibit wetland characteristics. The wetland classification system is hierarichial, with wetlands and deepwater habitats divided among 5 major systems at the broadest level. The five system 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.
Entity_and_Attribute_Detail_Citation:
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 upland classification modified from and 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: U.S. Geological Survey, National Wetland Research Center
Contact_Position: Spatial Analysis 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 usage 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 USGS 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. NWRC 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 expressed or implied warranties, including, without limitation, the implied warranties or merchantability and fitness for a particular purpose. Also, use of trade names or commerical products in this metadata is solely for the purpose of providing specific information, and does not imply recommendation or endorsement by the U.S. Government. Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the NWRC Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and NWRC interests.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Version_Number: 8+
File_Decompression_Technique: zipped
Transfer_Size: 9.189
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://sabdata.nwrc.gov>
Fees: None, if available on line
Ordering_Instructions:
To obtain the habitat data through the sabdata.nwrc.gov server, search on the title of the data set and use the download option.
Custom_Order_Process: None
Technical_Prerequisites: None
Metadata_Reference_Information:
Metadata_Date: 20050808
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, National Wetlands Research Center
Contact_Position: Metadata Specialist
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: 337 266-8616
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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 when creating a similar record for slightly altered data (such as reprojection.)
Generated by mp version 2.8.6 on Tue Aug 16 13:36:14 2005