Reference to important concepts

Concept	Description
`Central pressure range`	In the Verisk hurricane model, `central pressure` is the primary intensity variable. All else being equal `wind speed` increases as `central pressure` decreases.
`Forward speed`	`Forward speed or translational speed` is the rate at which a hurricane moves from point to point along its track.
`Radius`	The `radius of maximum winds, Rmax` is the radial distance from the storm's center, or eye, to the radius where the highest cyclonic wind speeds occur. `Rmax` tends to be larger at latitudes farther from the equator and smaller for more intense storms.
`Wind speed`	The `Wind speed` profile in Verisk models was developed based on the radial variation of wind speed described in Willoughby et al. (2006). The `wind speed` at any particular location is dependent on `Rmax`, the distance between the eye of the storm, the location of interest, the `gradient wind reduction factor`, and the `peak weighting factor`.
`Warm sea surface temperature catalog`	`Warm sea surface temperature catalog (WSST)` catalogs of simulated hurricanes reflect hurricane risk under warmer than average sea-surface temperature conditions.
`Standard catalog`	The `Standard catalogs` of simulated hurricanes reflect hurricane risk under average climate conditions.
`Number of landfalls`	The total number of times the center of the eye crosses the coastline.
`Landfall longitude`	It is the `longitude` at which the center of the eye crosses the coastline.
`Landfall latitude`	It is the `latitude` at which the center of the eye crosses the coastline.
`Angle (degrees)`	The measure of `storm track angle` measured clockwise (+) or counter-clockwise, where zero represents due north.
`Tide height (ft)`	It is the `astronomical tide` in feet.
`Gradient wind reduction factor (GWRF)`	`Gradient wind reduction factor (GWRF)` translates `upper-level wind speeds` to `surface wind speeds`. `GWRF` depends on `distance from the eye (r)` and the `peak weighting factor`.
`Industry loss`	The `industry loss` at the event level gives you an insight into potential industry losses on event occurrence. Currently, this data is only available for the US region.
`NOAA advisory data`	This includes the `projected tropical cyclone data` issued by NOAA.
`Global tropical cyclone data`	This includes `real-time global data` from both North Atlantic and Pacific regions.
`Parametric filters`	`Parametric filters` are ranges of values for the consistently measurable characteristics of an event, for example, `central pressure` and `forward speed`.
`Spatial filters`	`Spatial filters` are map layers that you can create or retrieve in Catalog Viewer and use for event filtering.
Parametric study	Parametric study (also known as Sensitivity Analysis) is a study of the influence of one or more physical parameters on the parameter under consideration.
Metropolitan statistical area	In the United States, a metropolitan statistical area (MSA)https://en.wikipedia.org/wiki/United_States is a geographical region with a relatively high population density at its core and close economic ties throughout the zone. These are the regions where most of the exposure of the insurance firms lies.

Central pressure range

In the Verisk hurricane model, central pressure is the primary intensity variable. All else being equal wind speed increases as central pressure decreases.

Forward speed

Forward speed or translational speed is the rate at which a hurricane moves from point to point along its track.

Radius

The radius of maximum winds, Rmax is the radial distance from the storm's center, or eye, to the radius where the highest cyclonic wind speeds occur. Rmax tends to be larger at latitudes farther from the equator and smaller for more intense storms.

Wind speed

The Wind speed profile in Verisk models was developed based on the radial variation of wind speed described in Willoughby et al. (2006). The wind speed at any particular location is dependent on Rmax, the distance between the eye of the storm, the location of interest, the gradient wind reduction factor, and the peak weighting factor.

Warm sea surface temperature catalog

Warm sea surface temperature catalog (WSST) catalogs of simulated hurricanes reflect hurricane risk under warmer than average sea-surface temperature conditions.

Standard catalog

The Standard catalogs of simulated hurricanes reflect hurricane risk under average climate conditions.

Number of landfalls

The total number of times the center of the eye crosses the coastline.

Landfall longitude

It is the longitude at which the center of the eye crosses the coastline.

Landfall latitude

It is the latitude at which the center of the eye crosses the coastline.

Angle (degrees)

The measure of storm track angle measured clockwise (+) or counter-clockwise, where zero represents due north.

Tide height (ft)

It is the astronomical tide in feet.

Gradient wind reduction factor (GWRF)

Gradient wind reduction factor (GWRF) translates upper-level wind speeds to surface wind speeds. GWRF depends on distance from the eye (r) and the peak weighting factor.

Industry loss

The industry loss at the event level gives you an insight into potential industry losses on event occurrence. Currently, this data is only available for the US region.

NOAA advisory data

This includes the projected tropical cyclone data issued by NOAA.

Global tropical cyclone data

This includes real-time global data from both North Atlantic and Pacific regions.

Parametric filters

Parametric filters are ranges of values for the consistently measurable characteristics of an event, for example, central pressure and forward speed.

Spatial filters

Spatial filters are map layers that you can create or retrieve in Catalog Viewer and use for event filtering.

Parametric study

Parametric study (also known as Sensitivity Analysis) is a study of the influence of one or more physical parameters on the parameter under consideration.

Metropolitan statistical area

In the United States, a metropolitan statistical area (MSA)https://en.wikipedia.org/wiki/United_States is a geographical region with a relatively high population density at its core and close economic ties throughout the zone. These are the regions where most of the exposure of the insurance firms lies.