3. Configure the TRACK product:
Product Type and Product Name
Select the input product type and then the product name that corresponds to the
selected type. Note that there must be a product configuration file for the type of
product you pick.
In the case of products received over the network, you can make a product
configuration file or copy the file over the network.
Centroid Threshold Level
The TRACK product considers only those centroids whose values meet or exceed
this threshold level.
The units of measure depend on the selected product. For example, a TOPS
threshold is specified in km, while a VIL threshold is specified in mm.
If you are uncertain about the units of measure, check the appropriate
Product Configuration menu.
Threshold Area in Sq Km
Enter the minimum size of a centroid region (in sq km). Areas that do not meet or
exceed this size are not tracked.
For example, for a 3 km by 3 km (1.9 × 1.9 mi) size area, enter "9".
Max Time Span
Enter the maximum time allowed between the newest and oldest track points to
be included in the TRACK product.
When a new input product is processed, points that are older than this time span
are removed.
You set the time using the plus and minus button to increase and decrease the
hours or minutes. Select Ok to exit the window. The time you specify is inserted
into the field.
You may also type a time value directly in the Time window and select Ok.
Max Time Step
Enter the amount of time that can elapse between two points in the same track. If
more than this amount of time has elapsed between the last point in a track and a
new point coming in, the new point is considered the beginning of a new track.
Max Forecast Time
Enter the amount of time to project ahead for forecast points.
The forecast time should be comparable to the lifetime of the feature that you are
tracking.
For example, for an isolated severe storm, a forecast time of 30 minutes would be
typical. For a squall line, a period of 1 hour could be used.
You need some experience with the types of weather in your part of the world.
Max Velocity
Enter the maximum velocity allowed between two points in the same track.
If this velocity would be exceeded by a new point coming in, that point is
considered the beginning of a new track.
A typical value for this field is 100 km/hr (62.1 mi/hr).
IRIS Product and Display User Guide M211319EN-H
90 RESTRICTED
To Next Page
Loading...