These data provide an accurate high-resolution shoreline compiled from imagery of Port of Galveston, TX . This vector shoreline data is based on an office interpretation of imagery that may be suitable as a geographic information system (GIS) data layer. This metadata describes information for both the line and point shapefiles. The NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)' was developed to conform the attribution of various sources of shoreline data into one attribution catalog. C-COAST is not a recognized standard, but was influenced by the International Hydrographic Organization's S-57 Object-Attribute standard so the data would be more accurately translated into S-57. This resource is a member of https://inport.nmfs.noaa.gov/inport/item/39808

These data provide an accurate high-resolution shoreline compiled from imagery of PORT OF GALVESTON, TEXAS . This vector shoreline data is based on an office interpretation of imagery that may be suitable as a geographic information system (GIS) data layer. This metadata describes information for both the line and point shapefiles. The NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)' was developed to conform the attribution of various sources of shoreline data into one attribution catalog. C-COAST is not a recognized standard, but was influenced by the International Hydrographic Organization's S-57 Object-Attribute standard so the data would be more accurately translated into S-57. This resource is a member of https://www.fisheries.noaa.gov/inport/item/39808

The purpose of this map is to show General Election - Early Voting and Election Day Voting Locations. Click on the Early Voting or Election Day symbols for poll locations, addresses, dates, & times.

This application serves as a general view of proposed CIP Streets, Water, Sewer, and Drainage projects for FY 2021-2025.

NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and modeling efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEM ranges from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).This DEM includes the Galveston, Texas area encompassing Brazoria, Galveston, Harris, Chambers, and Jefferson Counties.While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.The dataset is provided "as is," without warranty to its performance, merchantable state, or fitness for any particular purpose. The entire risk associated with the results and performance of this dataset is assumed by the user. This dataset should be used strictly as a planning reference and not for navigation, permitting, or other legal purposes.

These data provide an accurate high-resolution shoreline compiled from imagery of Galveston Bay, Clear Lake to La Porte, TX . This vector shoreline data is based on an office interpretation of imagery that may be suitable as a geographic information system (GIS) data layer. This metadata describes information for both the line and point shapefiles. The NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)' was developed to conform the attribution of various sources of shoreline data into one attribution catalog. C-COAST is not a recognized standard, but was influenced by the International Hydrographic Organization's S-57 Object-Attribute standard so the data would be more accurately translated into S-57. This resource is a member of https://www.fisheries.noaa.gov/inport/item/39808

Sidescan sonar data were collected using a 200 khz Teledyne Benthos C3D by TPWD staff from 2008-2016. This survey extent did NOT fully cover all of Galveston Bay and thus should not be used to make direct comparisons to Powell 1991 estimates without properly subsetting by overlapping survey area! Oyster habitat was manually delineated to a MMU of 1 acre. See metadata for survey date for specific areas of the bay - the survey was completed as a mosaic over a long period of time (8 years) and thus does not have a single publication date: Use caution when interpreting data for temporal trendsGround truthing was completed; overall map accuracy is 73%.

This layer depicts Hurricane Risk Areas as designated by the Federal Emergency Management Administration (FEMA). This theme originated using transportation maps as a base.

© COH OEM This layer is sourced from www.gis.hctx.net.

This layer depicts Hurricane Risk Areas as designated by the Federal Emergency Management Administration (FEMA). This theme originated using transportation maps as a base.

© COH OEM

These data provide an accurate high-resolution shoreline compiled from imagery of Galveston Bay, San Leon to Texas City, TX . This vector shoreline data is based on an office interpretation of imagery that may be suitable as a geographic information system (GIS) data layer. This metadata describes information for both the line and point shapefiles. The NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)' was developed to conform the attribution of various sources of shoreline data into one attribution catalog. C-COAST is not a recognized standard, but was influenced by the International Hydrographic Organization's S-57 Object-Attribute standard so the data would be more accurately translated into S-57. This resource is a member of https://inport.nmfs.noaa.gov/inport/item/39808

These data provide an accurate high-resolution shoreline compiled from imagery of Calcasieu To Galveston, TX . This vector shoreline data is based on an office interpretation of imagery that may be suitable as a geographic information system (GIS) data layer. This metadata describes information for both the line and point shapefiles. The NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)' was developed to conform the attribution of various sources of shoreline data into one attribution catalog. C-COAST is not a recognized standard, but was influenced by the International Hydrographic Organization's S-57 Object-Attribute standard so the data would be more accurately translated into S-57. This resource is a member of https://www.fisheries.noaa.gov/inport/item/39808

Supplemental GIS Data for Status and Trends of Wetland and Aquatic Habitats on Barrier Islands, Upper Texas Coast, Galveston and Christmas Bays A report of the Coastal Coordination Council pursuant to National Oceanic and Atmospheric Administration Award No. NA17OZ2353

Seagrass habitat was manually delineated with a MMU of 100m2 from aerial imagery. The digital orthophotography and color infrared digital orthos composed of 24 bit natural color and color infrared digital orthos at a scale of 1 to 840 with a 0.10 meter pixel resolution. Imagery acquired on February 9, 2015. The map was ground-truthed in 2015 with greater than 80% accuracy.Metadata document: Seagrass West Galveston and Christmas Bay TPWD 2015

Geospatial data about Texas General Land Office Three Nautical Mile Line. Export to CAD, GIS, PDF, CSV and access via API.

Initially created between February and April 2019. Routes 1 - 7 are the weekday routes. Routes 1342 and 567 are the weekend routes. (Weekend routes are officially 1-3-4-2 and 5-6-7. A domain is used to properly stylize the weekend routes' names.)The route numbers are used to link the route features to the schedule tables.

These data were automated to provide an accurate high-resolution historical shoreline of Galveston, Texas suitable as a geographic information system (GIS) data layer. These data are derived from shoreline maps that were produced by the NOAA National Ocean Service including its predecessor agencies which were based on an office interpretation of imagery and/or field survey. The NGS attribution scheme 'Coastal Cartographic Object Attribute Source Table (C-COAST)' was developed to conform the attribution of various sources of shoreline data into one attribution catalog. C-COAST is not a recognized standard, but was influenced by the International Hydrographic Organization's S-57 Object-Attribute standard so the data would be more accurately translated into S-57. This resource is a member of https://www.fisheries.noaa.gov/inport/item/39808

This digital elevation model (DEM) is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Coastal Services Center's Sea Level Rise and Coastal Flooding Impacts Viewer. The DEM includes the 'best available' lidar data known to exist at the time of DEM creation that meets project specifications for those counties within the boundary of the Houston/Galveston TX Weather Forecast Office (WFO), as defined by the NOAA National Weather Service. The counties within this boundary are: Jackson, Matagorda, Brazoria (portion), Harris (portion), Galveston, and Chambers. For all the counties listed, except for Harris, the DEM is derived from LiDAR data sets collected for the Texas Water Development Board (TWDB) in 2006 with a point density of 1.4 m GSD. LiDAR data for Harris County was collected in October 2001 by the Harris County Flood Control District Tropical Storm Allison Recovery Project (TSARP) with a point density of 2.0 m GSD. Hydrographic breaklines used in the creation of the DEM were delineated using LiDAR intensity imagery generated from the data sets. The DEM is hydro flattened such that water elevations are less than or equal to 0 meters.The DEM is referenced vertically to the North American Vertical Datum of 1988 (NAVD88) with vertical units of meters and horizontally to the North American Datum of 1983 (NAD83). The resolution of the DEM is approximately 10 meters.

Sidescan sonar survey was collected by TPWD staff from 204-2016 using a 200 kHz Teledyne Benthos C3D. Singlebeam echosounder (120 kHz Biosonics DTX) data were also collected and are available for download from TPWD. Habitat was was delineated with a MMU of 2500 square meters. Ground truthing assessment shows the 88.6% overall map accuracy.

Geospatial data about Texas Seagrass. Export to CAD, GIS, PDF, CSV and access via API.

Oyster data sets were taken by Texas A&M University's Dr. Eric Powell. A dual frequency acoustic monitor was used to determine bottom type. This acoustic equipment is designed to return echo sounds from the bottom of the bay. Fathometer accuracy declined at depths less than 0.8 m so extensive shallow areas were surveyed by pole to maintain bathymetric data.

City, town, village, and place boundaries within the 13-county region H-GAC. The cities, towns, and villages include: Alvin, Ames, Anahuac, Angleton, Arcola, Bailey's Prairie, Barrett, Bay City, Bayou Vista, Baytown, Beach City, Beasley, Bellaire, Bellville, Bonney, Brazoria, Brazos Country, Brookshire, Brookside Village, Bunker Hill Village, Clear Lake Shores, Cleveland, Clute, Columbus, Conroe, Cove, Cut and Shoot, Daisetta, Danbury, Dayton, Dayton Lakes, Deer Park, Devers, Dickinson, Eagle Lake, East Bernard, El Campo, El Lago, Fairchilds, Freeport, Friendswood, Fulshear, Galena Park, Galveston, Hardin, Hedwig Village, Hempstead, Hillcrest, Hilshire Village, Hitchcock, Holiday Lakes, Houston, Humble, Hunters Creek Village, Huntsville, Industry, Iowa Colony, Jacinto City, Jamaica Beach, Jersey Village, Jones Creek, Katy, Kemah, Kendleton, Kenefick, La Marque, La Porte, Lake Jackson, League City, Liberty, Liverpool, Magnolia, Manvel, Meadows Place, Missouri City, Mont Belvieu, Montgomery, Morgan's Point, Nassau Bay, Needville, New Waverly, North Cleveland, Oak Ridge North, Old River-Winfree, Orchard, Oyster Creek, Palacios, Panorama Village, Pasadena, Pattison, Patton Village, Pearland, Pine Island, Piney Point Village, Pleak, Plum Grove, Prairie View, Quintana, Richmond, Richwood, Riverside, Roman Forest, Rosenberg, San Felipe, Sandy Point, Santa Fe, Seabrook, Sealy, Shenandoah, Shoreacres, Simonton, Sourh Frydek, South Houston, Southside Place, Splendora, Spring Valley Village, Stafford, Stagecoach, Sugar Land, Surfside Beach, Sweeny, Taylor Lake Village, Texas City, Thompsons, Tiki Island, Tomball, Waller, Wallis, Webster, Weimar, West Columbia, West University Place, Weston Lakes, Wharton, Willis, Woodbranch, Woodloch. The census designated places (CDPs) include: Aldine, Atascocita, Bacliff, Barrett, Big Thicket Lake Estates, Blessing, Boling, Bolivar Peninsula, Channelview, Cinco Ranch, Cloverleaf, Crosby, Cumings, Damon, Deerwood, East Columbia, Fifth Street, Four Corners, Fresno, Garwood, Glidden, Grangerland, Highlands, Hull, Hungerford, Iago, Louise, Markham, Mataforda, Midfield, Mission Bend, Nada, New Ulm, Oak Island, Pecan Grove, Pinehurst, Porter Heights, Rock Island, Rosharon, San Leon, Sargent, Sheldon, Sheridan, Sienna, Spring, Stowell, The Woodlands, Van Vleck, Wadsworth, Wild Peach Village, Winnie.