[ncl-talk] NARR regridded plots

[Samar Minallah]

Hi Dennis,

Here it is:


netcdf uwnd.mon.mean {
dimensions:
        time = UNLIMITED ; // (476 currently)
        level = 29 ;
        y = 277 ;
        x = 349 ;
        nbnds = 2 ;
variables:
        double time(time) ;
                time:axis = "T" ;
                time:long_name = "Time" ;
                time:standard_name = "time" ;
                time:units = "hours since 1800-1-1 00:00:0.0" ;
                time:delta_t = "0000-01-00 00:00:00" ;
                time:avg_period = "0000-01-00 00:00:00" ;
                time:coordinate_defines = "start" ;
                time:actual_range = 1569072., 1916040. ;
        float level(level) ;
                level:GRIB_id = 100s ;
                level:GRIB_name = "hPa" ;
                level:actual_range = 1000.f, 100.f ;
                level:axis = "Z" ;
                level:coordinate_defines = "point" ;
                level:long_name = "Level" ;
                level:positive = "down" ;
                level:standard_name = "level" ;
                level:units = "millibar" ;
        float lat(y, x) ;
                lat:axis = "Y" ;
                lat:coordinate_defines = "point" ;
                lat:long_name = "Latitude" ;
                lat:standard_name = "latitude" ;
                lat:units = "degrees_north" ;
        float lon(y, x) ;
                lon:axis = "X" ;
                lon:coordinate_defines = "point" ;
                lon:long_name = "Longitude" ;
                lon:standard_name = "longitude" ;
                lon:units = "degrees_east" ;
        float y(y) ;
                y:long_name = "northward distance from southwest corner of
domain in projection coordinates" ;
                y:standard_name = "projection_y_coordinate" ;
                y:units = "m" ;
        float x(x) ;
                x:long_name = "eastward distance from southwest corner of
domain in projection coordinates" ;
                x:standard_name = "projection_x_coordinate" ;
                x:units = "m" ;
        int Lambert_Conformal ;
                Lambert_Conformal:false_easting = 5632642.22547 ;
                Lambert_Conformal:false_northing = 4612545.65137 ;
                Lambert_Conformal:grid_mapping_name =
"lambert_conformal_conic" ;
                Lambert_Conformal:latitude_of_projection_origin = 50. ;
                Lambert_Conformal:longitude_of_central_meridian = -107. ;
                Lambert_Conformal:standard_parallel = 50., 50. ;
        float uwnd(time, level, y, x) ;
                uwnd:GRIB_id = 33s ;
                uwnd:GRIB_name = "UGRD" ;
                uwnd:coordinates = "lat lon" ;
                uwnd:grid_mapping = "Lambert_Conformal" ;
                uwnd:level_desc = "Pressure Levels" ;
                uwnd:standard_name = "eastward_wind" ;
                uwnd:units = "m/s" ;
                uwnd:valid_range = -280.f, 350.f ;
                uwnd:var_desc = "u-wind" ;
                uwnd:missing_value = -9.96921e+36f ;
                uwnd:_FillValue = 9.96921e+36f ;
                uwnd:statistic = "Mean" ;
                uwnd:dataset = "NARR Monthly Means" ;
                uwnd:long_name = "Monthly U-wind on Pressure Levels" ;
                uwnd:parent_stat = "Mean" ;
                uwnd:actual_range = -24.33829f, 77.45517f ;
        double time_bnds(time, nbnds) ;

// global attributes:
                :_NCProperties =
"version=1|netcdflibversion=4.4.1|hdf5libversion=1.8.16" ;
                :Conventions = "CF-1.2" ;
                :centerlat = 50. ;
                :centerlon = -107. ;
                :comments = "" ;
                :institution = "National Centers for Environmental
Prediction" ;
                :latcorners = 1.000001f, 0.897945f, 46.3544f, 46.63433f ;
                :loncorners = -145.5f, -68.32005f, -2.569891f, 148.6418f ;
                :platform = "Model" ;
                :standardpar1 = 50. ;
                :standardpar2 = 50.000001 ;
                :title = "NARR Monthly Means" ;
                :dataset_title = "NCEP North American Regional Reanalysis
(NARR)" ;
                :history = "created 04/12/2016 by NOAA/ESRL/PSD" ;
                :references = "
https://www.esrl.noaa.gov/psd/data/gridded/data.narr.html" ;
                :source = "
http://www.emc.ncep.noaa.gov/mmb/rreanl/index.html" ;
}


--
Samar




On Sat, Sep 29, 2018 at 1:04 PM Dennis Shea <shea at ucar.edu> wrote:

> Hi Samar
>
> The script: *NARR_Regrid_0.5_weight.ncl*
> has
> srcFileName  = "*uwnd.mon.mean.nc <http://uwnd.mon.mean.nc>*"   ; <===
> Source file
>
> Can you please provide the output from
>
> %> ncdump -h uwnd.mon.mean.nc
>
>
> <http://uwnd.mon.mean.nc>* <http://uwnd.mon.mean.nc>*
>
>
>
>
> On Sat, Sep 29, 2018 at 12:31 AM Samar Minallah <minallah at umich.edu>
> wrote:
>
>> Hello,
>>
>> I am battling with NARR regridding and creating comparison plots. I have
>> regridded the NARR data using available scripts (have attached my scripts
>> to produce weight files and the regridded netcdf+comparison plots).
>>
>> I am unable to plot the original and regridded variables correctly and
>> cannot seem to identify where it is going wrong (I have attached the output
>> image).
>>
>> Can anyone please assist with this issue.
>>
>> Thank you
>> [image: ESMF_wgts_test.png]
>>
>>
>>
>> --
>> Samar
>>
>>
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>
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