0 - 1m Elevation Contour for the Central Texas Coast
Summary
County- wide DEMs at 5m resolution were provided by TNRIS and mosaicked clipped to the study area. This DEM was then used to develop 1- and 2- meter contours to assist in evaluating potential sea level rise scenarios in areas not covered by the SLAMM model run. A low-pass filter was first applied to the DEM to remove any major outliers within the elevation raster. The DEM was then reclassified according to elevation, separating the DEM into 4 classes: minimum elevation up to 0 m, between 0 m and 1m, between 1 m and 2m, and above 2 m. This reclassified raster was then converted to a polygon feature class. Polygons representing 0-1 m and 1 – 2 m were then exported separately, and these were used as 1 and 2 meter elevation contour lines. [...]
Summary
County- wide DEMs at 5m resolution were provided by TNRIS and mosaicked clipped to the study area. This DEM was then used to develop 1- and 2- meter contours to assist in evaluating potential sea level rise scenarios in areas not covered by the SLAMM model run. A low-pass filter was first applied to the DEM to remove any major outliers within the elevation raster. The DEM was then reclassified according to elevation, separating the DEM into 4 classes: minimum elevation up to 0 m, between 0 m and 1m, between 1 m and 2m, and above 2 m. This reclassified raster was then converted to a polygon feature class. Polygons representing 0-1 m and 1 – 2 m were then exported separately, and these were used as 1 and 2 meter elevation contour lines. For examining the potential changes to land-cover types under various sea level rise scenarios, the 1- and 2- meter polygons were used as clipping masks to separate the habitat data into elevation classes for further analysis.
This polygon feature class was generated by the Harte Research Institute for the purpose of investigation potential sea level rise impacts on the central Texas coast for the project ICF2012 (CGP LCC 2012-002 Employing the Conservation Design Approach on Sea-Level Rise Impacts on Coastal Avian Habitats along the Central Texas Coast).
Rights
Although this dataset has been produced and processed from sources believed to be reliable, no warranty, expressed or implied, is made regarding accuracy, adequacy, completeness, legality, reliability or usefulness of any information. This disclaimer applies to both isolated and aggregate uses of the information. This data is provided on an "as is" basis. All warranties of any kind, express or implied, including but not limited to the implied warranties of merchantability, or fitness for a particular purpose are disclaimed. Changes may be periodically made to the information herein; these changes may or may not be incorporated in any new version of the publication. Be aware that electronic data can be altered subsequent to original distribution. Data can also quickly become out of date. It is recommended that careful attention be paid to the contents of any data associated with a file, and that the originator of the data or information be contacted with any questions regarding appropriate use. It is strongly advised that in-situ verification of land cover or habitat type data be performed at the onset of any conservation planning activities.