[ncl-talk] Era-Interim daily precipitation
Ehsan Taghizadeh
ehsantaghizadeh at yahoo.com
Thu May 31 08:42:16 MDT 2018
Thank you so much for your nice replies.With you comment, it seems work correctly. However I've added some changes to the script to have an output file same as input file, I mean about dimensions, attributes, and so on.However I have some difficulties about it and I'll be thankful if I could have your help, again.For example aboutfout->tp24_1!1 = tp!1fout->tp24_1!2 = tp!2I encountered error. It seems they have conflict with following lines:fout->latitude = fin->latitudefout->longitude = fin->longitude
Beside that I want to have "tp24_1" with dimension "Geo2D" to plot.I attached new version of script, and I'll be thankful if I hear from you.
SincerleyEhsan On Thursday, May 31, 2018, 6:44:48 PM GMT+4:30, Dennis Shea <shea at ucar.edu> wrote:
The golden rule of data processing is look at your data
You have:
tp=f->tp ; <=== type 'short' [ packed data]
However, your file has:
short tp ( time, latitude, longitude )
scale_factor : 5.505649013956001e-06
add_offset : 0.1803980955369768
_FillValue : -32767
missing_value : -32767
units : m
long_name : Total precipitation
You *MUST* unpack the variable before computing the sums.
tp = short2flt(f->tp)
printVarSummary(tp)
printMinMax(tp,0)
===
https://www.ncl.ucar.edu/Document/Functions/Contributed/short2flt.shtml
On Thu, May 31, 2018 at 7:19 AM, Ehsan Taghizadeh <ehsantaghizadeh at yahoo.com> wrote:
Dears,
I've tried sum 12 hour precipitation to obtain 24 hour precipitation using attached script.However it seems doesn't work correctly!I had to sum tp(0,:,:)+tp(1,:,:), also tp(2,:,;)+tp(3,;,:), and so on.I uploaded "2_2_ERAI_Prec_2015_Jan_00_12_12.nc" in ftp.cgd.ucar.edu.I'll be thankful if I hear from you.
SincerelyEhsan
On Wednesday, May 16, 2018, 8:23:32 AM GMT+4:30, Dennis Shea <shea at ucar.edu> wrote:
This is book keeping. Something like:
loop each year
loop each month
loop each day
sum all values occurring between 00:00 and 11:59 inclusive ==>PRC(time,lat,lon,0)
sum all values occurring between 12:00 and 23:59 inclusive ==>PRC(time,lat,lon,1)
end day
end month
end year
On Sun, May 13, 2018 at 9:07 AM, Ehsan Taghizadeh <ehsantaghizadeh at yahoo.com> wrote:
Hi every body;Could I have any help to get daily precipitation from Era-Interim, please?I mean, a way to sum "accumulated precipitation from 00:00 to 12:00" with "accumulated precipitation from 12:00 to 24:00"?
SincerelyEhsan
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