[ferret_users] open ascii file question

[Otacilio Leandro <otaciliomneto@xxxxxxxxx>]

Hello,

I've got a data with 2D (x and y) climatological monthly temperature
over continental areas and i got some trouble at using it on ferret.
The data are separated by one file per year and i used the function
scat2gridgauss_xy to correctly read the data over the continent.
My goal with this data is create a cdf file varing at time (each
"timestep" is one month of the data).

I defined the axis this way:

define axis/x=-179.8:179.8:0.5/units=degrees xlon	
define axis/y=-89.75:89.75:0.5/units=degrees ylat
define axis/t=1:1:1 axist

define grid/x=xlon/y=ylat/t=axist mygrid

But when i used

file=/g=mygrid/var= lon, lat, value01, value02 ... etc , ascii-file.txt

all values of the orignal data are exchanged for 12.8 as you can see below.

Here is the stat of my variable:

             temp-1900-02
             LONGITUDE: 179.9E(-180.1) to 179.9E(179.9)
             LATITUDE: 90S to 90N
             Z:  N/A
             T: 1
             DATA SET: air_temp2009/air_temp.1900

 Total # of data points: 259200 (720*360*1*1)
 # flagged as bad  data: 259194
 Minimum value: 12.8
 Maximum value: 12.8
 Mean    value: 12.8 (unweighted average)
 Standard deviation: 7.178999E-07


I also tryed to regrid the variable using

let temp = tmp[g=mygrid]

but it also showed problems because the time axis is missing at temp variable.

The way i defined the t axis is correct? The reason that i want a time
axis on my variable is to use NCO to concatened all cdfs that im going
to create. I tested using file without time axis and got an error from
NCO.

I'm using:

	FERRET v6.64
 	Linux rh5 (gfortran) 2.6.18-164.11.1.el5 - 09/20/10

Thanks for the help.

-- 
Otacilio Leandro de Menezes Neto
Instituto Nacional de Pesquisas Espaciais
Doutorando em Meteorologia
Contato: (12) 3186-9537 / (12) 8194-1455
Email alternativo: otacilio.neto@xxxxxxxxxxxxx