[gradsusr] Fwd: Socorrooooo/ HELP

[RafaelCB]

---------- Forwarded message ----------
From: Venize Teixeira <nizeteixeira at gmail.com>
Date: 2011/4/5
Subject: Socorrooooo/ HELP
To: RafaelCB <rafael.ciram at gmail.com>


I have data level pressure at sea and would like to create a script that
generates a text file that selects only the cyclones with the following
characteristics:

The suggestion is as follows:

Create a script that, within the area of ​​lat -80 -20 and lon -100 -80,
finds the minimum value of pressure and then check if this value is:

-  the central sea level pressure cannot be higher than
1,015 hPa; and

-  the mean pressure gradient, estimated for an area of 5°lat×
7°lon around the minimum pressure, has to be of at least 0.55 hPa/250 km.


if the condition is satisfied, write to a file. "txt" latitude, longitude,
date, time, months.

if the condition is not met, run the scan in the next "t".


You could give me a hint how to do this?

Thank you for your attention
-- 
Venize A. Teixeira
Meteorologista
Msc: Ciência Ambientais
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