Contribute your Data to the Wetlands Master Geodatabase

Introduction

Organizations or individuals have the opportunity to contribute wetlands data to the wetlands geospatial data layer maintained by the U.S. Fish and Wildlife Service. The wetlands data layer is the featured layer on the Wetlands Mapper, forms a catalog component to The National Map and is registered through the Geospatial One-Stop.

The Service will provide proper acknowledgement of all data contributors and maintain data integrity consistent with DOI policy.

FGDC Non-Compliance Wavier for Wetlands Geodatabase Data Contributions

The Wetlands Geodatabase is a Federal Geographic Data Committee (FGDC) compliant contributor to the National Spatial Data Infrastructure (NSDI). Any data contributions to the Wetlands Geodatabase that do not meet the Wetlands Subcommittee FGDC data standards must complete the Wetlands Geodatabase FGDC non-compliance wavier.

Data Submission

Because the Wetlands Master Geodatabase is a national dataset, certain standards must be met before the data can be added. However, if you do not have the ability or resources to make your data meet these standards the Service may be able to assist in data conversions or modification.

The Wetlands data standards for acceptance into the Wetlands Master Geodatabase (MGD) are as follows:

• The data should comply with the Wetlands Mapping Standards.
• Properly project all data. The projection for wetlands is the Albers Equal Area Conic Projection and the North American Datum of 1983. Click here for additional projection information.
• ESRI shapefiles and Personal Geodatabases are the preferred spatial data formats for submission.
• The Wetlands Master Geodatabase consists of wetland polygon and linear features only. All point data should be buffered and added to the polygon feature class.
• Ideally, data should be classified and attributed using Cowardin et al., which is the FGDC standard. Failing that, a crosswalk should be provided to convert the contributor's code to the Cowardin code. For more information on wetlands classification refer to the following documents:
  • Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al.)
  • Wetlands and Deepwater Habitats Classification Hierarchy
• All upland attributes and delineations should be removed from the data before submission.
• A wetlands mapping project area boundary should be included with the submission. This area should be a polygon(s) or definition that defines the geographic area that is mapped (e.g. county, quadrangle, township, refuge, parcel, wetland). ALL wetlands within this area should be mapped up to but not extending beyond the boundary of the defined mapped area.
• All internal edge ties within the project area boundary are the responsibility of the data collectors. This ensures a seamless dataset.
• Each submission should be accompanied by a Wetlands Digital Data Submission Form.
• Both the National Standards and Support Team (NSST) and Services’ Regional Wetland Coordinators will conduct technical and ecological reviews prior to final acceptance. The Service will notify you as to data disposition.
• You will be notified once your data has been received.
• Send all questions related to your data submission to the Wetlands Database Administrator (email gs-w-capp_nwidba@USGS.gov).