colomn average and griding of ACSII file

["Yogesh K. Tiwari" <ktiwari@xxxxxxxxxxxxxxx>]

Hello Ferret Users,

Sorry for posting this question again on ferret list. .

After discussing with Ansley personally, I decided
to put this question on the list again in some more
clear and easy way.

I have scattered aircraft observations, look at
the aatched part of the data with this mail.

Let me explain what I want to do.


Actually my main aim with this aircraft data is to compare it with the 
column averaged satellite CO2 concentrations.

Therefore first I want to compute column average of flight data
and then I want to grid it on the same grid as satellite data to
solve my another problem(explained below).

The flight data has vertical profiles as well as horizontal
profiles, I want to exclude horizontal profiles beause I need
only vertical column averages.

So is it possible to take the vertical column average and then grid
the flight data as following :-


1> ./flight.nc  (default)

 name     title           I         J         K         L
 CO2     flight CO2      1:360     1:180     ...       ...


MY SECOND PROBLEM :_

Now I have the satellite data on the same grid :-

2> ./satellite.nc  (default)

 name     title              I         J         K         L
 CO2     satellite CO2      1:360     1:180     ...       ...


SO now is it possible that I can subsample this satellite data on the
same locations as above flight data.

Because both the data are on the same grid now so it should be
possible to subsample in ferret.

Am I right ?

I will welcome your suggations on the above problems.

Many many thanks in advance.

Regards,
Yogesh

--

===========================================
Yogesh K. Tiwari,
Max-Planck Institute for Biogeochemistry,
Beutenberg Campus, Hans-Knoell-Strasse 10,
D-07745 Jena,
Germany

Office   : 0049 3641 576376
Home     : 0049 3641 223163
Fax      : 0049 3641 577300
Handy    : 0049 173 698 8789
e-mail   : yogesh.tiwari@bgc-jena.mpg.de
===========================================
time        yr mo  dy hr min sec   lat    lon      ht  co2_flight sigma    co2_model 
2003.3938  2003 05 23 17 14 30    39.91 -105.11   1696  378.180 -999.000    373.90976
2003.3938  2003 05 23 17 14 40    39.91 -105.12   1716  378.900 -999.000    373.90976
2003.3938  2003 05 23 17 14 50    39.91 -105.13   1757  379.430 -999.000    373.90976
2003.3938  2003 05 23 17 15 00    39.92 -105.14   1839  379.650 -999.000    373.90976
2003.3938  2003 05 23 17 15 10    39.92 -105.14   1934  378.810 -999.000    373.90976
2003.3938  2003 05 23 17 15 20    39.93 -105.15   2030  377.960 -999.000    373.90976
2003.3938  2003 05 23 17 15 30    39.94 -105.15   2128  377.830 -999.000    374.11523
2003.3938  2003 05 23 17 15 40    39.95 -105.16   2235  378.650 -999.000    374.19318
2003.3938  2003 05 23 17 15 50    39.96 -105.16   2346  377.820 -999.000    374.19318
2003.3938  2003 05 23 17 16 00    39.96 -105.16   2404  377.210 -999.000    374.28653
2003.3938  2003 05 23 17 16 10    39.97 -105.16   2430  377.370 -999.000    374.28653
2003.3938  2003 05 23 17 16 20    39.98 -105.16   2443  377.590 -999.000    374.28653
2003.3938  2003 05 23 17 16 30    39.99 -105.16   2480  377.440 -999.000    374.28653
2003.3938  2003 05 23 17 16 40    40.00 -105.16   2549  377.900 -999.000    374.28653
2003.3938  2003 05 23 17 16 50    40.01 -105.15   2623  378.020 -999.000    375.32010
2003.3938  2003 05 23 17 17 00    40.02 -105.14   2698  377.920 -999.000    375.32010
2003.3938  2003 05 23 17 17 10    40.03 -105.13   2757  377.980 -999.000    375.32010
2003.3938  2003 05 23 17 17 20    40.04 -105.12   2774  378.090 -999.000    375.32010
2003.3938  2003 05 23 17 17 30    40.05 -105.12   2774  377.990 -999.000    375.32010
2003.3938  2003 05 23 17 17 40    40.05 -105.11   2766  378.030 -999.000    375.32010
2003.3938  2003 05 23 17 17 50    40.06 -105.10   2776  378.140 -999.000    375.32010
2003.3938  2003 05 23 17 18 00    40.07 -105.09   2782  378.170 -999.000    375.32010
2003.3938  2003 05 23 17 18 10    40.08 -105.08   2781  378.310 -999.000    375.32010
2003.3938  2003 05 23 17 18 20    40.09 -105.07   2783  378.220 -999.000    375.32010
2003.3938  2003 05 23 17 18 30    40.09 -105.06   2783  378.120 -999.000    375.32010
2003.3938  2003 05 23 17 18 40    40.10 -105.05   2780  378.090 -999.000    375.32010
2003.3938  2003 05 23 17 18 50    40.11 -105.04   2778  378.050 -999.000    375.32010
2003.3938  2003 05 23 17 19 00    40.12 -105.03   2779  378.010 -999.000    375.32010
2003.3938  2003 05 23 17 19 10    40.12 -105.02   2780  377.880 -999.000    375.32010
2003.3938  2003 05 23 17 19 20    40.13 -105.01   2778  377.830 -999.000    375.32010
2003.3938  2003 05 23 17 19 30    40.13 -105.00   2779  377.850 -999.000    375.32010
2003.3938  2003 05 23 17 21 00    40.17 -104.89   2777  377.580 -999.000    375.21353
2003.3938  2003 05 23 17 21 10    40.18 -104.88   2775  377.650 -999.000    375.21353
2003.3938  2003 05 23 17 21 20    40.18 -104.87   2777  377.760 -999.000    375.21353
2003.3938  2003 05 23 17 21 30    40.18 -104.85   2779  377.780 -999.000    375.21353
2003.3938  2003 05 23 17 21 40    40.19 -104.84   2783  377.810 -999.000    375.21353
2003.3938  2003 05 23 17 21 50    40.19 -104.83   2782  377.820 -999.000    375.21353
2003.3938  2003 05 23 17 22 00    40.18 -104.81   2781  377.850 -999.000    375.21353
2003.3938  2003 05 23 17 22 10    40.18 -104.80   2780  377.830 -999.000    375.21353