Search for tropical cyclone events using attribute filters

You can find events in the stochastic catalog data and historical data that meet your specific set of event attributes.

With Catalog Viewer, you can find events in the catalog that affect specific regions or pass through selected geographic areas. It also helps meet a specified set of criteria of industrial losses at the event level and a specified set of parametric filters having a defined range of central pressure range, forward speed, radius, and wind speed. You can specify up to three filters at one time. Each filter set can include a range of industry losses, parametric filters, and up to three spatial filters.

You can also now leverage on the parameters of the North Atlantic historical tracks to better assess upcoming events and query tropical cyclone tracks from the Verisk’s catalog. For each historical event set, you will have access to Full Tracks, Intensity Footprints of wind speed, Hourly Point Data, and Event Summaries. You may also create your own collection of events of your interest for further visualization on maps.

Only for events in North Atlantic Historical Hurricane Catalogs, the search for events using attribute filters will now yield both stochastic event sets and historical event sets. For others, it will only yield stochastic event sets.

Note: Industrial losses are only available for the U.S. Region 10k catalogs.
Steps to search for events using attribute filters:

Procedure

  1. Click on the add symbol next to TROPICAL CYCLONE
  2. Click on the Event Catalog.
    Query By Event Catalog search window opens enabling Select a Catalog Region and Filter Set 1 options. Additionally, for US Tropical Cyclone 10K Stochastic Catalog, the search will also enable Industry Loss at Event-level(USD) option. .
  3. In the Select a Catalog Region drop-down list, select the catalog that contains the events of your interest, for example, US Tropical Cyclone 10K Stochastic Catalog.
    You will get your licensed peril as the default.
  4. Click on Modify to update the Touchstone version and Catalog Size.
    The Modify button will be greyed out, if there is only one set of event catalogs for the peril region.
  5. Optionally, provide the industry loss range that is exclusive to 10K U.S. Catalogs for use as a filter.
    • You can either manually drag the scroll bar within the desired limits.
    • Or you can input the maximum and minimum numerical values.
  6. Optionally, name the parametric filter set.
    1. Click on to Edit Filterset Name to provide a name to the parametric filter set.
    2. In the text box, type a new name for the filter.
    3. Optionally, you could click on the Clear Filterset Name to clear the text box.
  7. Optionally, enable the Only return events that meet attribute criteria at landfall option.

    If you do not enable the option, the application returns events that meet the filter criteria at any hourly point in the event trajectory.

  8. Optionally, specify the range for the event parameters used as filter criteria. For each parameter, you can:
    • Either manually drag the scroll bar within the desired limits.
    • Or input the maximum and minimum numerical values.
  9. Optionally, specify the spatial data to be used as filter criteria:
    1. Click on the + Add a Spatial Filter button.
    2. Optionally, enable the Only Return events that meet spatial criteria at landfall option.
      If you do not enable the option, the application returns events that meet the filter criteria at any hourly point in the event trajectory.
    3. From the Select Map Layer drop-down list, select a map layer.
    4. Optionally, click on the Include Buffer icon to include additional locations positioned within the buffer limit. Input the distance information in absolute numbers in the Distance field and select the unit of measurement from the drop-down list
      A shape corresponding to the buffer size measurements will be visible on the map. You can add up to three buffer extents on recently added map layers, with each extent overlaying the additional spatial filter selected during your event search.
    5. Alternatively, click on the Remove Spatial Filter button to remove the selected map layer from the filter criteria.
    6. To include additional spatial filters, click Add Another Spatial Filter and repeat the previous steps.

      You can add up to three spatial filters in each filter set.

  10. Optionally, to add another set of filters inclusive of a range of industry losses, parametric and spatial filters, you need to:
    1. Click on the context menu icon and then select Add New Filterset.
    2. Repeat steps 4 through 7.
  11. Click the Search Events button .
  12. Alternatively, click the Reset button to clear all the input in the text box and the results table.
  13. Optionally, select a new stochastic catalog from the Select a Catalog Region drop-down list to explore Event Ids from alternate target catalogs.

Results

The application retrieves both stochastic and historical events that meet the criteria specified in all filter sets. But for each filter set, the application searches for events that pass through any of the spatial filters.

Next Steps

Click on Close to get back to the main search window.
Note: Note that whenever you navigate from one peril search to another, you will receive a warning message informing you that all of your current peril data and related map layers will be cleared.