[ferret_users] calcuting RMSE

To: ferret_users <ferret_users@xxxxxxxx>

Subject: [ferret_users] calcuting RMSE

From: afwande juliet <afwandej965@xxxxxxxxx>

Date: Mon, 10 Oct 2016 17:35:29 +0300

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Dear ALL, I am trying to calculate RMSE for two datasets over a box for MAM seasons for 1997 only. I have re-gridded the data so that have same grid information. But I get the error below. Could some help me. Also attached are two datasets am using

yes? set region/x=32E:40E/y=8N:18S
yes? let p=pre[d=2]-pr[d=1]
yes? let q = p^2
yes? let r = q[l=1:3@sum]
yes? let s = r/3
yes? let m = s^0.5
yes? list m
           *** NOTE: Ambiguous coordinates on T axis: PRE[D=2]-PR[D=1]
**ERROR: illegal limits: PR is not in the range T=35488:35579
          Axis extremes are T=19970301:19970532
yes? set region/x=32E:40E/y=8N:18S
yes? let p=pre[d=2]-pr[d=1]
yes? let q = p^2
yes? let r = q[l=1:3@sum]
yes? let s = r/3
yes? let m = s^0.5
yes? list m
           *** NOTE: Ambiguous coordinates on T axis: PRE[D=2]-PR[D=1]
**ERROR: illegal limits: PR does not exist at T=19970516
          Axis extremes are T=19970516

Attachment: CRU_MAM_1997.nc
Description: Cdf file

Attachment: wrf_precip_MAM_97_BML.nc
Description: Cdf file