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Geospatial analysis
Geospatial analysis enables you to perform a deterministic risk analysis with your own view of risk on accumulations of property exposures and workers' compensation information in given areas exposed to natural and man-made catastrophes.
Configuring a new geospatial analysis
Configuring the analysis is the second step in the process.

Using Touchstone online Help
You can access the top-level or context-sensitive Touchstone online help from within the application or from the Client Portal. You can then search for content, bookmark pages, and generate output to other formats.
Import data from external sources
You can import exposure data, map layers, projects, and reinsurance packages from external sources into Touchstone databases.
Projects and exposure views
Projects are a useful way to organize your data. They contain exposure views that contain the data that you want to focus on.
Geospatial analysis
Geospatial analysis enables you to perform a deterministic risk analysis with your own view of risk on accumulations of property exposures and workers' compensation information in given areas exposed to natural and man-made catastrophes.
- Business use cases for geospatial analysis
  Here are potential business use cases for geospatial analyses.
- Licensing considerations in geospatial analysis
  We offer great flexibility in how you manage licenses for Touchstone software.
- Overview of creating a new geospatial analysis
- Choosing the analysis type in geospatial analysis
  Choosing the analysis type is the first step in configuring a geospatial analysis.
- Configuring a new geospatial analysis
  Configuring the analysis is the second step in the process.
  - Zonal accumulations
  - Zone Set Manager (Geospatial analysis)
  - Adding and configuring a new zone
  - Ring accumulations
    Accumulating by rings is useful when you want to analyze your property exposure workers' compensation data for terrorism risks. However, you can use this method of accumulation for any peril when you want to understand areas of high concentration of risk in a small geographical area.
  - Ring placement criteria
  - Dynamic ring option
    A dynamic ring analysis enables you to identify the optimal location for placing a ring of a given size so that you can determine the area of maximum possible accumulation of potential losses within a given set of exposures/data.
  - Ring content
  - Ring definition
  - Event accumulation
    You can accumulate property exposures based on event footprints that we provide. The footprints are based on the perils and regions that you license.
  - Custom boundaries
  - Hazards and intersections
    Use this analysis type to "intersect" your exposure data with any GIS layer so that you can aggregate or filter any of the exposure data attributes, including total replacement value (TRV), risk count, etc., by the legend values associated with the GIS hazard layer.
- Modifying settings and reinsurance
  Step 3 in a geospatial analysis allows you to modify financial reinsurance, and analysis management settings,
- Running the analysis
  This is an overview of running a geospatial analysis.
- Creating and Saving Geospatial Analysis Templates
- Viewing geospatial analysis results
  The analysis results and the spatial analysis functions that you can perform depend on the analysis configuration.
- Display modes in geospatial analysis results
  There are two display modes—Accumulation Display mode and Interactive Browser mode. You can switch between the two modes.
- Spatial analysis options
  There are various spatial analysis options available to use on the analysis results, including the use of widgets to filter all the results that are visible on the screen into a chart or table.
- Filtering widgets by shape
  In Interactive Browser results mode, you can filter chart and table widgets by one or more shapes. Drawing tools, which are available only when you license Geospatial Analysis, enable you to draw shapes, save them, and use them on Touchstone maps.
- Using map layers in geospatial analysis results
  You can display AIR-provided layers or user-created layers on geospatial analysis results. You can also create different tables and charts using widgets. Geospatial Analysis requires a license.
- Widgets
- Maps in geospatial analysis
  Maps are available in many locations in Touchstone.
- Map tools
  Map tools appear along the right side of the map.
- Working with web map layers in Touchstone
  You can import web map layers into Touchstone using various web map servers. This allows users in the same business unit to visualize the web map layers on any map in Touchstone.
- Importing map layers into Touchstone
  Use Map Layer Import to import map layers (custom GIS data) from raster or vector files into Touchstone.
Exposure data validation
Verisk provides a reference containing information about Touchstone exposure data.
Data Quality analysis
The most effective way to assess and enhance portfolio-level or contract-level catastrophe exposure data is to use Touchstone's Data Quality diagnostics. These diagnostics enable you to determine the strengths and weaknesses of the exposure data you are using for analyses and supplement that data when it is missing or weak.
Hazard analysis
Hazard analysis enable you to identify the relevant catastrophe hazards for locations in your exposure data.
About loss analyses
Touchstone enables you to model catastrophic (CAT) events to estimate property and workers' compensation losses.
Reinsurance
The Reinsurance Program Manager enables you to create, import, and manage reinsurance programs.
Touchstone data export types
Touchstone enables you to export different types of data.
Activity Monitor
The Activity Monitor displays the status of all activities.
Managing data sources
Use Data Source Management to manage Touchstone databases.
User model management
Use User Model Management to build custom non-Verisk models and seamlessly integrate them into Touchstone.
Model Builder
Administration Console
User interface
Reference: Common Help topics

Configuring a new geospatial analysis

Configuring the analysis is the second step in the process.

In the New Geospatial Analysis pane, after selecting the analysis target or targets and choosing the exposure and analysis type, click Step 2 - Configure.

You can search for items by typing characters or words in the Search field.

For an event accumulation, typing Andrew in the Search field on the Accumulate tab retrieves "Andrew 1992" and "Andrew 1992 GoM". (The Search field appears only for zonal and event accumulation types.)

For an event accumulation only, you can use the Filter option to filter items by type, peril, and region. Click Reset to restore the default filters.

Selecting World Scenarios (Type), Storm Surge (Peril), and then North America (Region) lists three US Storm Surge items.

Important: Peril codes are different in Geospatial analysis than they are in Detailed Loss analysis. We do not support the new sub-peril set code for the Verisk Severe Thunderstorm Model for the United States, which is 11534336. Instead, we are still using the old sub-peril code, which is 2. This mismatch creates an issue when a user tries to join detailed loss results with geospatial analysis accumulation output.

The following table summarizes the configuration options based on your choices in Step 1. The tab columns describes the tabs for each specified exposure and analysis type.


Exposure Type	Analysis Type	Accumulate Tab	Intersection Tab
Property	Zonal accumulations	Custom Zones, AIR Zones	Hazard, Detailed Loss
Property	Ring accumulations	Ring Placement, Ring Content, Ring Definition	Hazard, Detailed Loss
Property	Event accumulation	Event List	Hazard, Detailed Loss
Property	Custom boundaries	Map Layers, Shapes	Hazard, Detailed Loss
Property	Hazards and intersections	Hazard Layers, Detailed Loss Results	Not applicable
Workers' Compensation	Ring accumulations	Ring Placement, Ring Content, Ring Definition	Not applicable
Property and Workers' Compensation	Ring accumulations	Ring Placement, Ring Content, Ring Definition	Not applicable