Map Viewers on the THMP Site utilize ArcIMS technology.
ArcIMS is an Internet-based tool that enables users to view (map), access, analyze, print and save geographic data. The data sets are organized in layers and shown as maps, but also include tabular (text) data about the mapped data layers.
The Map Viewers on this Site are organized as Summary-level hazard maps, Detail-level (2 types) hazard maps and Vulnerability maps:
1. SUMMARY-LEVEL HAZARD MAPS
Includes maps of all hazard occurrences by county for Texas and other summarized data
2. DETAIL-LEVEL HAZARD MAPS
Includes maps of hazard occurrences by actual location (if possible), hazard risk zones and other significant data for Texas
Includes: Hurricanes, Coastal Erosion, Tornadoes, Floods, Other Storms, Outdoor Fires, Drought, Extreme Temperatures
Includes: Earthquakes, Hazardous Materials, Subsidence
3. VULNERABILITY to HAZARD MAPS
Includes: Exposure (Population and Property Value), Hazard Risk Zones (from Detail Viewers above), and the combination -- Vulnerability of exposure to specific hazard risk zones
Note that a variety of Base Map data layers are also included in each of the three Map Viewers listed above
For more information on how to utilize the features of the ArcIMS Map Viewer, please click Toolbar Help. This can also be accessed directly from the Map Viewers.
For a tutorial on how to use these Map Viewers and Data Layers, please click Quick Start Tutorial. This can also be accessed from the Map Viewers and User Resources section.