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You are here: Home / GIS Geographic Information Systems / metadata / Arroyo-Colorado Watershed: 30-Meter Land Use Land Cover

Arroyo-Colorado Watershed: 30-Meter Land Use Land Cover

ArcView shapefile which delineates the land use and land cover (LULC) of the Arroyo-Colorado watershed (LULC metadata).
Sample Graphic

Table of Contents

The following text conforms with the hierarchy of data elements in the FGDC Content Standards for Digital Geospatial Metadata. This GIS layer supersedes all earlier copies, translations or coverages of the Air Quality Monitoring Stations coverage which may have been made by the Texas Commission on Environmental Quality (TCEQ).

1 IDENTIFICATION_INFORMATION:
Citation:
Citation_Information:
Originator: Texas Commission on Environmental Quality
Publication_Date: 20010606
Title: Arroyo-Colorado Watershed: 30-Meter Land Use Land Cover
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Austin, TX
Publisher: TCEQ
Description:
Abstract:
This is an ArcView shapefile which delineates the land use and land cover (LULC) of the indicated watershed. Attribution of the polygons is based on a modified Anderson classification schema. A detailed description of this schema can be found in the "Supplemental Information" Section. All LULC data were collected from high-resolution (1:40,000-scale) aerial photography. The minimum mapping unit used for delineating a polygon is 5 acres.

Please Note: This dataset has not been ground-truthed for attribute accuracy. See the "attribute accuracy report" below for more information.

Purpose:
Through a USGS interdivisional agreement between NMD and the Water Resources Division (WRD), NMD has collected the LULC data set for the available watersheds. The WRD Texas District Office intends to use the LULC data to monitor the effects of agricultural pollutants on water quality in the watershed study area.
Supplemental_Information:

Click here to see a status map showing the locations of available LULC datasets

LAND USE/LAND COVER CLASSIFICATION DEFINITIONS
Modified Anderson Classification

August 31, 1998
Version 1.1
Applied to: Arroyo Colorado Watershed Project and the Brazos Colorado Coastal Watershed Project
1.0 WATER - area covered by water, snow, or ice with less than 25% vegetated or developed cover, unless specifically included in another category
1.1 Open Water - all areas of open water with less than 25% vegetative or developed cover
1.11 Stream/river - a natural body of flowing water. Includes streams and rivers that have been channelized in order to control flooding or erosion or to maintain flow for navigation.
1.12 Canal/ditch - a man-made open waterway constructed to transport water, to irrigate or drain land, to connect two or more bodies of water, or to serve as a waterway for water craft
1.13 Lake/pond - a non-flowing, naturally-existing, body of water. Includes water impounded by natural occurrences and artificially regulated natural lakes. The delineation of a lake is based on the areal extent of water at the time the imagery was acquired.
1.14 Reservoir - any artificial body of water, unless specifically included in another category. It can lie in a natural basin or a man-constructed basin. The delineation of a reservoir is based on the areal extent of water at the time the imagery was acquired. (The water control structures are classified as Communications/Utilities)
1.15 Bay/estuary - the inlets or arms of the sea that extend inland
1.16 Sea/ocean - an area of the great body of salt water that covers much of the earth
1.2 Perennial Ice/Snow - areas covered year-round with snow and ice
1.21 Snowfield - permanent snow not underlain by a glacier
1.22 Glacier - a body of ice and snow, showing evidence of past or present flow
2.0 DEVELOPED - Areas of the earth which have been improved by man. Includes all "built up" and urban areas of the landscape. Does NOT include mining lands, crop lands, or waste-disposal areas (dumps). This land use category takes precedence over a land cover category when the criteria for more than one category are met.
2.1 Residential - lands containing structures used for human habitation
2.11 Single-family Residential - Lands used for housing residents in single-family dwelling units. Includes trailer parks, mobile home parks, and entire "farmsteads" when where is a home in the complex. ( If no home is in the complex, it should be classified as Agricultural Business.) Single-family residential buildings located within another category, such as military family housing, should be identified in this category.
2.12 Multi-family Residential - All lands devoted to housing more than one family on a permanent or semi-permanent basis, group living situations, and their associated grounds. Includes apartments, apartment complexes, duplexes, triplexes, attached row houses, condominiums, retirement homes, nursing homes, and residential hotels. Residential building located within another category such as barracks and dormitories, should be identified in this category when possible.
2.2 Non-residential Developed - Any "developed" area or feature which is used for a purpose other than havitation.
2.21 Commercial/Light Industry - structures and associated grounds used for the sale of products and services, for business, or for light industrial activities. Includes all retail and wholesale operations. Include "industrial parks" and other features which cannot be clearly classified as either a retail service or light industry, such as heavy equipment yards, machinery repair, and junkyards.
2.22 Heavy Industry - structures and their associated grounds used for heavy fabrication, manufacturing and assembling parts which are, in themselves, large and heavy; or for processing raw materials such as iron ore, timber, and animal products. Accumulated raw materials are subject to treatment by mechanical, chemical, or heat processing to render them suitable for further processing, or to produce materials from which finished products are created. Heavy industries generally require large amounts of energy and raw materials and produce a significant amount of waste products. Indicators of heavy industry may be stock piles of raw materials, energy producing sources and fuels, waste disposal areas and ponds, transportation facilities capable of handling heavy materials, smokestacks, furnaces, tanks, and extremely large buildings which are complex in outline and roof structure. Include associated waste piles and waste ponds. Heavy industry is usually located away from residential areas. Includes steel mills, paper mills, lumber mills, chemical plants, cement and brick plants, smelters, rock crushing machinery, and ore-processing facilities associated with mining.
2.23 Communications and Utilities - structures or facilities and associated grounds used for the generation and transfer of power and communications, the treatment or storage of drinking water, waste management, flood control, or the distribution and storage of gas and oil not associated with a unique feature. Includes pumping stations (oil, gas, or water), tank farms, power plants, electric substations, sewage treatment facilities and ponds, garbage collection facilities (not the final dumping ground - these are included in Bare), dams, levees, and spillways of appropriate dimensions, filtration plants, and heavy concentrations of antennas or satellite dishes; along with the related operational buildings.
2.24 Institutional - specialized government or private features which meet the educational, religious, medical, governmental, protective, and correctional needs of the public. Parking lots and associated grounds are included with these features. Includes public and private schools (not day care), cemeteries, state capitols, city halls, courthouses, libraries, churches, convents, monasteries, hospitals and training hospitals, post offices, police and fire departments, prisons, and military bases. Only the military-business areas of a military base are classified here; residential, airport, athletic fields, and vegetated areas are classified in the appropriate category. 2.25 Agricultural Business - structures and all associated grounds used for raising plants or animals for food or fiber. Includes fish farms and hatcheries, feedlots, poultry farms, dairy farms, temporary shipping and holding pens, animal breeding or training facilities, and greenhouses. (Farmsteads including a dwelling are classified as Residential, not Agricultural Business.)
2.26 Transportation - Roads, railroads, airports, port facilities, and their associated lands. Roads and railroads include the right-of-way, interchanges, and median strips. Category includes railroad stations, railroad yards, bus stations, highway maintenance yards, school bus parking and service yards, and park-and-ride lots. Port facilities include loading and unloading facilities, docks, locks and, temporary storage areas. Associated warehousing and transfer stations for truck or rail are included only if they appear to be an integral part of the airport or port facility. Nearby but separate warehouses will be classified as light industry.
2.27 Entertainment and Recreational - areas and structures used predominantly for athletic or artistic events, or for leisure activities, and all associated lands and developed parking areas. Includes outdoor amphitheaters, drive-in theaters, campgrounds, zoos, sports arenas (including indoor arenas), developed parks and playgrounds, community recreation centers, museums, amusement parks, public swimming pools, fairgrounds, and ski complexes (not the ski slopes). Marinas with over 25% of water surface covered by docks and boats are included here.
2.3 Mixed Urban - developed areas which have such a mixture of residential and non-residential features where no single feature meets the minimum mapping unit specification. This category is used when more than one-third of the features in an area do not fit into a single category. Often applicable in the central, urban-core area of cities.
3.0 BARE - undeveloped areas of the earth not covered by water which exhibit less than 25% vegetative cover or less than 5% vegetative cover if in an arid area. The earth's surface may be composed of bare soil, rock, sand, gravel, salt deposits, or mud.
3.1 Transitional Bare - areas dynamically changing from one land cover/land use to another, often because of land use activities. Includes all construction areas, areas transitioning between forest and agricultural land, and urban renewal areas which are in a state of transition.
3.2 Quarries/Strip Mines/Gravel Pits - areas of extractive mining activities with significant surface disturbance. Vegetative cover and overburden are removed for the extraction of deposits such as coal, iron ore, limestone, copper, sand and gravel, or building and decorative stone. Current mining activity does not need to be identifiable. Inactive or unreclaimed mines and pits are included in this category until another land cover or land use has been established. Includes strip mines, open-pit mines, quarries, borrow pits, oil and gas drilling sites, and gravel pits with their associated structures, waste dumps,and stockpiles.
3.3 Bare Rock/Sand - includes bare bedrock, natural sand beaches, sand bars, deserts, desert pavement, scarps, talus, slides, lava, and glacial debris.
3.4 Flats - A level landform composed of unconsolidated sediments of mud, sand, gravel, or salt deposits. Includes coastal tidal flats and interior desert basin flats and playas.
3.5 Disposal - designated areas where refuse is dumped or exists, such as landfills, trash dumps, or hazardous-waste disposal sites. Reclaimed disposal areas or those covered with vegetation do not qualify.
4.0 VEGETATED - areas having generally 25% or more of the land or water with vegetation. Arid or semi-arid areas may have as little as 5% vegetation cover.
4.1 Woody Vegetation - land with at least 25% tree and (or) shrub canopy cover
4.11 Forested - land where trees form at least 25% of the canopy cover
4.12 Shrub land - areas where trees have less than 25% canopy cover and the existing vegetation is dominated by plants that have persistent woody stems, a relatively low growth habit, and which generally produce several basal shoots instead of a single shoot. Includes true shrubs, trees that are small or stunted because of environmental conditions, desert scrub, and chaparral. In the eastern US, include former cropland or pasture lands which are now covered by brush to the extent that they are no longer identifiable or usable as cropland or pasture. Clear-cut areas will exhibit a stage of shrub cover during the regrowth cycle. Some common species which would be classified as shrub land are mountain mahogany, sagebrush, and scrub oaks.
4.13 Planted/Cultivated Woody (Orchards/Vineyards/Groves) - areas containing plantings of evenly spaced trees, shrubs, bushes, or other cultivated climbing plants usually supported and arranged evenly in rows. Includes orchards, groves, vineyards, cranberry bogs, berry vines, and hops. Includes tree plantations planted for the production of fruit, nuts, Christmas tree farms, and commercial tree nurseries. Exclude pine plantations and other lumber or pulp wood plantings which will be classified as Forest.
4.132 Citrus - trees or shrubs cultivated in orchards or groves that bear edible fruit such as orange, lemon, lime, grapefruit, and pineapple.
4.133 Non-managed Citrus - orchards or groves containing fruit bearing trees or shrubs which are no longer maintained or harvested by humans. Evidence of non-managed citrus includes the growth of non citrus shrubs, trees, and grasses within a orchard or grove.
4.2 Herbaceous Vegetation - areas dominated by non-woody plants such as grasses, forbs, ferns and weeds, either native, naturalized, or planted. Trees must account for less than 25% canopy cover while herbaceous plants dominate all existing vegetation.
4.21 Natural Herbaceous - areas dominated by native or naturalized grasses, forbs, ferns and weeds. It can be managed, maintained, or improved for ecological purposes such as weed/brush control or soil erosion. Includes vegetated vacant lots and areas where it cannot be determined whether the vegetation was planted or cultivated such as in areas of dispersed grazing by deral or domesticated animasl. Includes landscapes dominated by grass-like plants such as bunch grasses, palouse grass, palmettoprairie areas, and tundra vegetation, as well as true prairie grasses.
4.22 Planted/Cultivated Herbaceous - areas of herbaceous vegetation planted and/or cultivated by humans for agronomic purposes in developed settings. The majority of vegetation in these areas is planted and/or maintained for the production of food, feed, fiber, pasture, or seed. Temporarily flooded are included in this category. Do not include harvested areas of naturally occurring plants such as wild rice and cattails.
4.223 Row Crops - areas used for the production of crops or plants such as corn, soybeans, vegetables, tobacco, flowers and cotton. Fields which exhibit characteristics similar to row crops, but that do not have any other distinguishing features for a more specific category may be included.
4.2232 Sugar Cane - a very tall tropical grass up to 15 feet high with thick tough stems that is cultivated as the main source of sugar. It can be found in tropical and sub-tropical areas of the United States such as Louisiana, Florida, Hawaii, and Texas.
4.224 Cultivated grasses - areas of herbaceous vegetation, including perennial grasses, legumes, or grass-legume mixtures that are planted by humans and used for erosion control, for seed or hay crops, for grazing animals, or for landscaping purposes
4.2241 Pasture/Hay - areas of cultivated perennial grasses and/or legumes (e.g., alfalfa) used for grazing livestock or for seed or hay crops. Pasture lands can have a wide range of cultivation levels. It can be managed by seeding, fertilizing, application of herbicides, plowing, mowing, or baling. Pasture land has often been cleared of trees and shrubs, is generally on steeper slopes than cropland, is intended to graze animals at a higher density than open rangeland, and is often fenced and divided into smaller parcels than rangeland or cropland. Hay fields may be more mottled than small grain fields as they are not plowed annually and may be harvested and baled two or three times a year in some locations. On the Arroyo Colorado Project, this category also contains turf farms and maintained lawn grasses.
4.3 Vegetated Wetland - areas where the water table is at, near, or above the land surface for a significant part of most years and vegetation indicative of this covers more than 25% of the land surface. Wetlands can include marshes, swamps situated on the shallow margins of bays, lakes, ponds, streams, or reservoirs; wet meadows or perched bogs in high mountain valleys, or seasonally wet or flooded low spots or basins. Do not include agricultural land which is flooded for cultivation purposes.
4.31 Woody Wetland - areas dominated by woody vegetation. Includes seasonally flooded bottom land, mangrove swamps, shrub swamps, and wooded swamps including those around bogs. Wooded swamps and southern flood plains contain primarily cypress, tupelo, oaks, and red maple. Central and northern flood plains are dominated by cottonwoods, ash, alder, and willow. Flood plains of the Southwest may be dominated by mesquite, saltcedar, seepwillow, and arrowweed. Northern bogs typically contain tamarack or larch, black spruce, and heath shrubs. Shrub swamp vegetation includes alder, willow, and buttonbush.
4.32 Emergent Herbaceous Wetlands - areas dominated by wetland herbaceous vegetation which is present for most of the growing season. Includes fresh-water, brackish-water, and salt-water marshes, tidal marshes, mountain meadows, wet prairies, and open bogs.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19950115
Ending_Date: 19960112
Currentness_Reference: Date of aerial photography
Status:
Progress: complete
Maintenance_and_Update_Frequency: None planned for the existing LULC datasets, however, additional basins will be added at a later date.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -106.0588
East_Bounding_Coordinate: -89.9298
North_Bounding_Coordinate: 37.6584
South_Bounding_Coordinate: 23.9762
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Land Use
Theme_Keyword: Land Cover
Theme_Keyword: LULC Theme_Keyword: Land Characterization Program
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Arroyo Colorado
Place_Keyword: Hidalgo County
Place_Keyword: Willacy County
Place_Keyword: Cameron County
Place_Keyword: Texas
Place_Keyword: Harlingen
Place_Keyword_Thesaurus: None
Place_Keyword: Brazoria Colorado
Place_Keyword: Matagorda County
Place_Keyword: Wharton County
Place_Keyword: Fort Bend County
Place_Keyword: Austin County
Place_Keyword: Colorado County
Place_Keyword: Texas
Place_Keyword: Harlingen
Access_Constraints: None
Use_Constraints:
These data were compiled for government use and represent the results of data collection for a specific activity of Water Resources Division. USGS makes no representation as to the suitability or accuracy of the data for any other purpose and disclaims any liability for errors that the data may contain. As such, it is only valid for its intended use, content, time, and accuracy specifications. While there are no explicit constraints on the use of the data, please exercise appropriate and professional judgment in the use and interpretaion of these data. Acknowledgement of the US Geological Survey would be appreciated for products derived from this data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Mike Stier
Contact_Organization: USGS, National Mapping Division, Rocky Mountain
Mapping Center
Contact_Address:
Address_Type: mailing address
Address: Box 25046
MS 509
City: Denver
State_or_Province: Colorado
Postal_Code: 80225 Country: USA
Contact_Voice_Telephone: (303) 202-4105
Contact_Electronic_Mail_Address: mpstier@usgs.gov
Data_Set_Credit: Data was compiled by USGS cartographers Jamie Schubert, Paul Braun, and David Hughes.
Native_Data_Set_Environment:
dgux, 5.4R3.10, AViiON UNIX
ARC/INFO version 7.0.4
Cross_Reference:
Citation_Information:
Originator: USDA, Agricultural Research Station, Remote Sensing Research Unit
Publication_Date: 199612
Title: Citrus, 1996
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Weslaco, Texas
Publisher: USDA
Citation_Information:
Originator: Rio Grande Valley Sugar Growers, Inc
Title: Sugar cane field locations
Edition: 1995 - 1996 growing season
Geospatial_Data_Presentation_Form: maps, plats
Other_Citation_Details: Obtained from Norman Rozeff (956) 636-1412
2 Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribution was obtained through the visual inspection of aerial photographs and the interpretation and application of the classification schema. No ground checks were performed after compilation. NMD strives for a 90% attribution accuracy rate. Since citrus groves and sugar cane fields were attributed with the aid of ancillary data, NMD anticipates a 95% attribution accuracy rate on those features.
Logical_Consistency_Report:
Completeness_Report:
The minimum polygon size for compilation is 5 acres. The minimum polygon width for compilation is 125 feet. Some ground features, if deemed mapworthty, are slightly exaggerated in area or width to meet the minimum size requirements. For classification definitions, see the Supplemental_ Information Section. An effort was made to keep the LULC data set vertically integrated with the hydrography coverage. However, due to the minimum polygon size and width, some water bodies had to be covered with a land use polygon other than water.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The LULC data was collected from a base map of a Digital Orthophoto Quarter Quad with a resolution of 1 meter and a horizontal accuracy of 0.1 meter.
Lines and polygons which follow a distinct ground feature are drawn within 40 feet of the feature. Lines and polygons which are interpretive in nature (i.e. a line drawn between an area of scrub and of forest) are considered to be relatively accurate in horizontal position.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: National Mapping Division, US Geological Survey (USGS)
Publication_Date: 199809
Title: The Land Use and Land Cover of the Arroyo Colorado Watershed, Texas Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Denver, CO
Publisher: Rocky Mountain Mapping Center, National Mapping Division (NMD),USGS
Source_Scale_Denominator: 1:40,000
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: unknown
Ending_Date: 199809
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: USGS
Source_Contribution:
Source of Arroyo Colorado dataset.
Source_Citation:
Citation_Information:
Originator: National Mapping Division, US Geological Survey (USGS)
Publication_Date: 199809
Title: The Land Use and Land Cover of the Brazos Colorado Watershed, Texas
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Denver, CO
Publisher: Rocky Mountain Mapping Center, National Mapping Division (NMD),USGS
Source_Scale_Denominator: 1:40,000
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: unknown
Ending_Date: 20000426
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: USGS
Source_Contribution:
Source of Brazos Colorado dataset.
Source_Citation:
Citation_Information:
Originator: USGS
Publication_Date: 1995 and 1996
Title: aerial photographs
Geospatial_Data_Presentation_Form: aerial photographs
Series_Information:
Series_Name: National Aerial Photography Program (NAPP)
Publication_Information:
Publication_Place: Souix Falls, SD Publisher: EROS Data Center, USGS
Other_Citation_Details: Infra-red photography
Source_Scale_Denominator: 1:40,000
Type_of_Source_Media: 9" x 9" paper color print
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19950115
Ending_Date: 19960112
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: NAPP
Source_Contribution:
Sets of stereo photographs were used to interpret and classify all categories of land use and land cover except for citrus groves, non-managed citrus groves, and sugar cane fields.
Source_Information:
Source_Citation:
Citation_Information:
Originator: USGS, Western Mapping Center
Publication_Date: 1996
Title: Digital Orthophoto Quarter Quad (DOQQ)
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Menlo Park, Ca
Publisher: USGS, Western Mapping Center
Type_of_Source_Media: raster digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19950115
Ending_Date: 19960112
Source_Currentness_Reference: date of aerial photography
Source_Citation_Abbreviation: DOQQ
Source_Contribution: DOQQs were used as a base map to delineate land use polygons.
Process_Step:
Process_Description:
SITE VISIT - Forty hours were spent on site in McAllen and Harlingen, Texas. Information was gathered on the local natural vegetation, agricultural products and practices, and irrigation districts. Images on the aerial photographs were related to actual ground features to aid in the interpretation of various natural and manmade features. Local data was gathered regarding the exact location and status of citrus groves and sugar cane fields.
Process_Date: 199802
Process_Step:
Process_Description:
DATA COMPILATION - Data is compiled using RevPG (Revision-Product Generation) software. RevPG is a set of custom Arc Macro Language (AMLs) based on ARC/INFO GIS software. It is designed to simplify and standardize commonly used actions and procedures. Compilation is performed using the color-infrared DOQQs as positional base maps. LULC is photointerpreted using stereo aerial photographs. Land use polygons and label points are entered into the dataset in an ARCEDIT session, producing a standard arc coverage. Data is collected in 7.5-minute, USGS quadrangle-based blocks. Portions of twenty-one (21) 7.5-minute quadrangles were involved in the project. Only those portions of the quadrangles which were within the boundaries of the Arroyo Colorado watershed were compiled. The boundary of the Arroyo Colorado watershed was provided to NMD by WRD. Because of the date of photography (January) the sugar cane fields could not be identified from the imagery. Each sugar cane field was identified and located from detailed plats provided by the sugar refinery. Citrus groves were generally photoidentifiable, but the location of active groves and non-managed groves had to be verified by the data provided by the USDA Texas Agricultural Research Station in Weslaco. A revised hydrography coverage provided by WRD was viewed as a backcover at all times during compilation to ensure vertical integration between the hydrography coverage and the land use coverage.
Process_Date: 199807 thru 199808
Process_Step:
Process_Description:
DATA PROCESSING - ARC/INFO software was used to append the 21 individual coverage portions into a single coverage for the entire drainage basin. The complete data set was checked for polygon topology and consistency.
Process_Date: 199809
Process_Step:
Process_Description:
Coverage was converted to a shapefile by TCEQ. All non-essential fields were dropped. The field Minor1 indicating LULC was renamed LULC_code.
Process_Date: 20010606
3 Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count:
4 Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 34d 55m 00s
Standard_Parallel: 27d 25m 00s
Longitude_of_Central_Meridian: -100d 00m 00s
Latitude_of_Projection_Origin: 31d 10m 00s
False_Easting: 1,000,000 meters
False_Northing: 1,000,000 meters
Other_Projection's_Definition:
The projection system used corresponds to the Texas State-wide Mapping System (TSMS) defined in the Texas GIS Planning Council's GIS Data Standards. TSMS uses measurement units of meters.
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1983
Ellipsoid_Name: Geodetic Reference System 80
5 Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: basinname.shp
Entity_Type_Definition: ArcView Shapefile
Entity_Type_Definition_Source: Environmental Systems Research Institute, Inc.
Attribute:
Attribute_Label: Code
Attribute_Definition:
Land Use Land Cover Code. This 6-digit code indicates the land use land cover classification as defined by the modified Anderson classification described in the supplemental section above.
Attribute_Definition_Source: TCEQ
Attribute_Domain_Values:
Entity_and_Attribute_Detail_Citation:
100000 WATER
110000 Open Water
111000 Stream/River
112000 Canal/Ditch
113000 Lake/Pond
114000 Reservoir
115000 Bay/Estuary
116000 Sea/Ocean
120000 Perennial Ice/Snow
121000 Snowfield
122000 Glacier

200000 DEVELOPED
210000 Residential
211000 Single-family Residential
212000 Multi-family Residential
220000 Non-residential Developed
221000 Commercial/Light Industy
220000 Heavy Industry
223000 Communication and Utilities
224000 Institutional
225000 Agricultural Business
226000 Transportation
227000 Entertainment and Recreation
230000 Mixed Urban

300000 Bare
310000 Transitional
320000 Quarries/Strip Mines/Gravel Pits
330000 Bare Rock/Sand
340000 Flats
350000 Disposal

400000 VEGETATED
410000 Woody Vegetation
411000 Forested/Trees
412000 Shrubland
413000 Orchards/Vinyards
413200 Citrus Groves
413300 Non-Managed Citrus Groves
420000 Herbaceous Vegetation
421000 Natural Herbaceous
422000 Planted/Cultivated Herbaceous (Cropland)
422320 Sugar Cane Fields
422410 Pasture/Hay
430000 Wetlands
431000 Woody Wetlands
432000 Emergent Wetlands

6 Distribution_Information:
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS, National Mapping Division
Contact_Position: Supervisor, Land Characterization Unit
Contact_Address:
Address_Type: mailing address
Address: Box 25046
MS 509
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Address_Type: physical address
Address: Denver Federal Center Bldg 810
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: (303) 202-4105
Contact_Electronic_Mail_Address: mpstier@usgs.gov
Distribution_Liability:
Although these data have been processed successfully on a computer system at the US Geological Survey, 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 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. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein.
7 Metadata_Reference_Information:
Metadata_Date: 20010606
Metadata_Review_Date: 20010606
Metadata_Future_Review_Date: Unknown
Metadata_Contact:
Contact_Person_Primary: Greg Smithhart
Contact_Organization_Primary:
Texas Commission on Environmental Quality
Contact_Address:
Address_Type: mailing address
Address: P. O. Box 13087 (Mail Code 197)
City: Austin
State_or_Province: TX
Postal_Code: 78711-3087
Country: USA
Contact_Voice_Telephone: 512-239-0859
Contact_Facsimile_Telephone: 512-239-0888
Contact_Electronic_Mail_Address: gsmithha@tceq.texas.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 199704017
Metadata_Time_Convention: Local Time
Metadata_Access_Constaints: None
Metadata_Use_Constaints: None
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified