File Geodatabase Feature Class
Tags
Playa, playas, wetland, wetlands, lake, lakes, saline lakes, impoundments, riparian, Texas, Ogallala aquifer, Oklahoma panhandle, west central New Mexico
This layer contains wetlands and similar features in the Texas Panhandle and Eastern New Mexico. This boundary file was specifically designed for large scale thematic mapping and analysis.
The spatial data were obtained from the
US Fish and Wildlife Service and National Wetlands Inventory
and were processed further by the Texas Tech Center for Geospatial Technology.
The attributes were modified to include information regarding modifications to the wetland, land use, soil type, and a unique wetland identification number.
The Playas and Wetlands GeoDatabase (PWD) was developed as a comprehensive resource for mapping playa-lake and wetland features in 52 counties overlying the Ogallala Aquifer on the Southern High Plains of the United States. The primary data source was the National Wetlands Inventory (NWI) geodatabase. The NWI wetlands were developed using SSURGO soil data to identify hydric soils and air photo interpretation using 2004 NAIP imagery. In addition, the Playa Lakes Digital Database (Texas Tech University, Department of Natural Resources) was used to incorporate features that were not included in the NWI. Lastly, wetland features not identified in either the NWI or PLDD were incorporated by the Center for Geospatial Technology.
In the original NWI database, wetland features were classified based on the Cowardin Classification System and multiple polygons were frequently used to map a single wetland. In the PWD geodatabase, these polygons were merged to create unique playa or wetland features and selected features were edited to refine feature geometry. A simplified classification system was developed to assess the functional condition of playas and physical environment of wetlands.
Data are available in separate layers according to the PWD major wetland classifications: Playas, Lakes, Saline Lakes, Impoundments and Manmade Features, Riparian Features, Scrub and Other Features. All of the features in the PWD are also available in the AllWetlands layer.
Center for Geospatial Technology, Texas Tech University U.S. Fish and Wildlife Service National Wetlands Inventory
The wetland features are not intended for use at a scale larger than 1:5,000
Extent
| West | -104.129548 | East | -99.996177 |
| North | 37.001337 | South | 31.646952 |
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:5,000,000 |
Center for Geospatial Technology, Texas Tech University U.S. Fish and Wildlife Service National Wetlands Inventory
Playas and wetlands features are represented in the Southern High Plains region of Texas, Oklahoma and New Mexico.
The wetland features are not intended for use at a scale larger than 1:5,000
The wetland features are not intended for use at a scale larger than 1:5000
Acknowledgement of the Texas Tech University Center for Geospatial Technology would be appreciated in products derived from these data. By acceptance of this data, the user agrees to include a copy of this metadata record, including the liability disclaimer, whenever the user transmits or provides the GIS Data (or any portion of it) to another user.
Playas and wetlands over the Ogallala Aquifer region of Texas, Oklahoma and New Mexico
Texas Tech University, Center for Geospatial Technology
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Feature geometry.
ESRI
Coordinates defining the features.
Unique value generated for each WetType value by county
Texas Tech University, Center for Geospatial Technology
Values represent a classification of playas and wetlands developed by TTU
Texas Tech University, Center for Geospatial Technology
Two character code representing the classification of wetland types
Texas Tech University, Center for Geospatial Technology
Indicates if playa or wetland was farmed
Texas Tech University, Center for Geospatial Technology
Restricted list of comments to further characterize local impact to the wetland
Texas Tech University, Center for Geospatial Technology
Indicates whether wetland was excavated, diked or drained
Texas Tech University, Center for Geospatial Technology
Indicates if farming is identified within a half mile of the wetland, or if the wetland is in a built-up or urban area, if there is no farming within a half mile of the wetland, or if the wetland is directly impacted by farming
Texas Tech University, Center for Geospatial Technology
This field stores the SSURGO map unit symbol for playa wetland types only (Playa, Playa No Indicator Soil Mapped, Road Modified Playa, and Significantly Modified Playa).
Texas Tech University, Center for Geospatial Technology
Name of County
Texas Tech University, Center for Geospatial Technology
Area of wetland in square meters
Texas Tech University, Center for Geospatial Technology
Area of wetland in acres
Texas Tech University, Center for Geospatial Technology
Two character state abbreviation
National Institute of Standards and Technology
County Federal Information Processing Standard code
National Institute of Standards and Technology
State Federal Information Processing Standard code
National Institute of Standards and Technology
Longitude of feature centroid in NAD 1983 decimal degrees
Texas Tech University, Center for Geospatial Technology
Longitude of feature centroid in NAD 1983 decimal degrees
Texas Tech University, Center for Geospatial Technology
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
Unique identifier for each playa and wetland feature consisting of the State FIPS, County FIPS and five digit unique value from the UniqueIDByCnty field.
Texas Tech University, Center for Geospatial Technology
Unique identifer of playas incorporated from the Playa Lakes Digital Database. This identifier represents the concatenation of the latitude and longitude of the centroid for features incorporated from the PLDD.
Texas Tech University, Natural Resources Management
The soil type associated with the playa at the time of development of the Playa Lakes Digital Database.
Texas Tech University, Natural Resources Management
Acknowledgement of the Texas Tech University Center for Geospatial Technology would be appreciated in products derived from these data. The user agrees to include a copy of this metadata record, including the liability disclaimer, whenever the user transmits or provides the GIS data (or any portion of it) to another user.
The spatial data were obtained from the US Fish and Wildlife Service and National Wetlands Inventory and were processed further by the Texas Tech Center for Geospatial Technology. The attributes were modified to include information regarding modifications to the wetland, land use, soil type, and a unique wetland identification number.The Playas and Wetlands GeoDatabase (PWD) was developed as a comprehensive resource for mapping playa-lake and wetland features in 52 counties overlying the Ogallala Aquifer on the Southern High Plains of the United States. The primary data source was the National Wetlands Inventory (NWI) geodatabase. The NWI wetlands were developed using SSURGO soil data to identify hydric soils and air photo interpretation using 2004 NAIP imagery. In addition, the Playa Lakes Digital Database (Texas Tech University, Department of Natural Resources) was used to incorporate features that were not included in the NWI. Lastly, wetland features not identified in either the NWI or PLDD were incorporated by the Center for Geospatial Technology.In the original NWI database, wetland features were classified based on the Cowardin Classification System and multiple polygons were frequently used to map a single wetland. In the PWD geodatabase, these polygons were merged to create unique playa or wetland features and selected features were edited to refine feature geometry. A simplified classification system was developed to assess the functional condition of playas and physical environment of wetlands. Data are available in separate layers according to the PWD major wetland classifications: Playas, Lakes, Saline Lakes, Impoundments and Manmade Features, Riparian Features, Scrub and Other Features. All of the features in the PWD are also available in the AllWetlands layer.
This layer contains wetlands and similar features in the Texas Panhandle and Eastern New Mexico. This boundary file was specifically designed for large scale thematic mapping and analysis.
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REQUIRED: Restrictions and legal prerequisites for accessing the data set.
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Dataset copied.
Dataset copied.
Dataset copied.
Dataset copied.