Hi,
I tried to derive spatial average of KD490 from four
different files (
1.nc,
2.nc,
3.nc
and
4.nc downloaded from giovanni database)
\\I used the following stpes
yes? sh da
currently SET data sets:
name title I J
K L M N
MODISA_L3M_KD_2014_KD_490
Diffuse attenuation coefficient 1:156 1:96
... ... ... ...
name title I J
K L M N
MODISA_L3M_KD_2014_KD_490
Diffuse attenuation coefficient 1:156 1:96
... ... ... ...
name title I J
K L M N
MODISA_L3M_KD_2014_KD_490
Diffuse attenuation coefficient 1:156 1:96
... ... ... ...
name title I J
K L M N
MODISA_L3M_KD_2014_KD_490
Diffuse attenuation coefficient 1:156 1:96
... ... ... ...
yes? fill MODISA_L3M_KD_2014_KD_490[d=1]
yes? frame/file=Figure1.gif
//Figure1 in the attachement
yes? fill MODISA_L3M_KD_2014_KD_490[d=2]
yes? frame/file=Figure2.gif
//Figure2 in the attachement
yes? fill MODISA_L3M_KD_2014_KD_490[d=3]
yes? frame/file=Figure3.gif
//Figure3 in the attachement
yes? fill MODISA_L3M_KD_2014_KD_490[d=4]
yes? frame/file=Figure4.gif
//Figure4 in the attachement
yes? fill (MODISA_L3M_KD_2014_KD_490[d=1]+MODISA_L3M_KD_2014_KD_490[d=2]+MODISA_L3M_KD_2014_KD_490[d=3]+MODISA_L3M_KD_2014_KD_490[d=4])/4
yes? frame/file=Figure5.gif
//Figure5 in the attachement
//In the image, most of the regions were empty while taking
the average (the method read from ferret user group).
//It was because of the missing data in any of the file
(eg.
4.nc), led the empty regions, though
other files having values.
I should take the average from these files.
How can I solve this?
Is it possible to replace the 'no data (....)' as 'zero
(0)'?
or Is it possible to feed K and L axis with some values
like L value = 1,2,3 and 4 for each .nc files, respectively?
May it be useful to take average like
"yes? fill MODISA_L3M_KD_2014_KD_490 [l=1:4@AVE]".
The sample data files attached here.
Thanks.
--
C. Karnan, CSIR - SRF
National Institute of Oceanography (CSIR)
India.