Dear Ferreters,
G'day
I am having very strange problem in computation of trend (slope). I am replotting my data after 1 year or so and I want to compute trend from it. I am having my data from 2005-2015.
Here is the attached data.
from ferret I used this script
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use ohc-ferret.nc
let p=t[gt=ohcg1]
let q=ohcg1
go regresst
fill/lev=(-inf)(-20,20,4)(inf)/pal=blue_orange slope*10^-7*12
frame/file=test-ferret.png
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from CDO i used this command
here b.nc is the slope, then I plotted this slope.
use b.nc
fill/lev=(-inf)(-20,20,4)(inf)/pal=blue_orange ohcg1*10^-7*12
frame/file=test-cdo.nc
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Now you can see the difference in both the plots. I don't understand why it is happening. Then I checked with NCL also and it is matching with the plot from CDO. Computation of slope from ferret is messing up my calculation and I dont understand why it is so because it never happened before. I am simply modifying my previous plots but it is showing wrong results now with the same old data and scripts.
Any suggestions that what is I am doing wrong with ferret ?
Cheers, Saurabh
Saurabh Rathore
Research Scholar (PhD.)
Centre For Oceans, Rivers, Atmosphere & Land Science Technology
Indian Institute Of Technology, Kharagpur
contact :- 91- 8345984434