Section: 3.7.9 Objective Analysis of Point Data

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3.7.9 Objective Analysis of Point Data

The IDV can create gridded data fields from point data using Barnes Objective Analysis.

Leave the metar.csv point data source from the prior exercise.
In the Field Selector open the "Gridded Fields" tab. This lists the numeric fields in the data.
Choose "T" and create a Contour Plan View display.
In the Grid Parameters tab check off Use Default and change the number of passes to 6 and create another Contour Plan View display.
Toggle the visibility to compare the differences.
Create a Point Data Plot display and change its Layout Model to "Temperature" and compare the values to the grid values.
Change other values and create display to see what effect they have on the resulting grid.

Unidata IDV Workshop for version 3.0u2 > Accessing and Displaying Data > Point Observations