Re: [ferret_users] list/file=xxx.dat from north to south

[Xiaoyu Bai <xbai1@xxxxxxxx>]

Hi Ansley,

The interesting part is, if I use list to list my data, it's from north to south:

list/X=-30:75 pr_curved_4CO2_MPAS_clim
             VARIABLE : PR_CURVED_4CO2_MPAS_SEASONAL[L=@SUM]/12
             SUBSET   : 43 by 96 points (LONGITUDE-LATITUDE)
             TIME     : 01-JAN 00:00 to 01-JAN 00:00 NOLEAP
      ... listing every   3th point
              30W    22.5W  15W     7.5W   0E     7.5E   15E    22.5E  30E    37.5E  45E    52.5E  60E    67.5E  75E  
              -11     -8     -5     -2      1      4      7     10     13     16     19     22     25     28     31
 90N   / 96:   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1   66.1
 88.1N / 95:   65.6   65.7   65.7   65.8   65.9   65.9   65.8   65.8   65.7   65.7   65.7   65.7   65.5   65.3   65.2
 86.2N / 94:   65.1   65.1   65.1   65.5   65.6   66.2   66.2   66.2   65.7   65.7   65.7   65.7   65.6   65.4   65.2
 84.3N / 93:   65.8   65.9   65.6   65.4   65.8   66.4   66.6   67.3   67.5   67.1   67.1   67.0   66.8   66.4   66.4
 82.4N / 92:   66.3   66.6   66.6   67.0   67.1   67.9   68.7   68.5   68.6   67.7   67.7   68.2   68.0   68.6   68.0
 80.5N / 91:   65.9   67.8   67.7   68.3   68.6   69.0   70.1   70.0   70.3   70.6   70.6   69.8   70.6   70.7   71.6
 78.6N / 90:   70.2   70.1   70.2   70.1   70.3   71.5   71.8   72.7   73.2   73.5   73.4   72.5   74.0   73.9   74.1
 76.7N / 89:   74.0   73.4   73.9   73.7   74.0   74.0   75.3   76.0   76.2   76.1   76.2   76.4   77.3   77.4   77.2
 74.8N / 88:   76.6   76.6   77.1   77.8   77.7   76.9   78.2   78.4   78.8   79.3   79.9   80.8   81.0   81.5   81.6
 72.9N / 87:   80.8   81.1   81.5   82.5   82.3   81.3   82.9   82.7   83.0   83.3   84.6   85.5   85.3   85.9   85.8
 71.1N / 86:   86.9   87.6   87.9   88.0   87.0   86.8   88.3   88.5   88.1   88.7   90.0   90.2   90.8   90.7   90.6

But if I use list to write them out as a .dat file, it looks like:

             VARIABLE : PR_CURVED_4CO2_MPAS_SEASONAL[L=@SUM]/12
             BAD FLAG : -1.E+34      
             SUBSET   : 43 by 96 points (LONGITUDE-LATITUDE)
             TIME     : 01-JAN 00:00 to 01-JAN 00:00 NOLEAP
  30W   27.5W 25W   22.5W 20W   17.5W 15W   12.5W 10W   7.5W 5W   2.5W 0E   2.5E 5E   7.5E 10E   12.5E 15E   17.5E 20E   22.5E 25E   27.5E 30E   32.5E 35E   37.5E 40E   42.5E 45E   47.5E 50E   52.5E 55E   57.5E 60E   62.5E 65E   67.5E 70E   72.5E 75E  
90S 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.6 46.6 46.59 46.59 46.59 46.59 46.59 46.59 46.59 46.6 46.6 46.6 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.61 46.62 46.64 46.65 46.66 46.67 46.67 46.68
88.1S 46.74 46.7 46.68 46.65 46.62 46.59 46.55 46.5 46.44 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.4 46.45 46.55 46.63 46.7 46.76 46.8 46.85 46.88 46.94 47.24 47.25 47.26 47.26 47.27 47.27 47.28 47.28 47.29 47.31 47.32 47.33 47.33 47.33
86.2S 47.27 47.34 47.4 47.46 47.5 47.54 47.58 47.45 47.13 46.86 46.58 46.43 46.46 46.48 46.49 46.48 46.46 46.43 46.62 46.97 47.3 47.74 47.93 47.9

It looks like it's from South to North. Is there a reason for this difference?

Have a nice day.

Xiaoyu

On Thu, Jun 27, 2019 at 8:52 PM Ansley C. Manke <ansley.b.manke@xxxxxxxx> wrote:

Hi Xiaoyu,

The listings are ordered from north to south, I suppose so that north is at the top as it is on a map (with apologies to those using maps oriented for the Southern Hemisphere!)

yes? use etopo20
yes? list/x=134.5/y=-5.5:0.5 rose
             VARIABLE : RELIEF OF THE SURFACE OF THE EARTH (METERS)
             FILENAME : etopo60.cdf
             FILEPATH : /home/users/tmap/ferret/linux/fer_dsets/data/
             SUBSET   : 7 points (LATITUDE)
             LONGITUDE: 134.5E
             134.5E
             115
 0.5N / 91: -4030.
 0.5S / 90: -1831.
 1.5S / 89:  -564.
 2.5S / 88:  -120.
 3.5S / 87:   298.
 4.5S / 86: -1108.
 5.5S / 85:  -565.

It turns out that this sort of ordering is done only for listings of a single variable.  So, perhaps list the latitudes with your data, or any other variable you choose.

yes? let/units=degrees_north latitudes = y[gy=rose]
yes?list/x=134.5/y=-5.5:0.5 latitudes, rose
             DATA SET: /home/users/tmap/ferret/linux/fer_dsets/data/etopo60.cdf
             LATITUDE: 5.5S to 0.5N
             LONGITUDE: ???
 Column  1: LATITUDES is Y[GY=ROSE] (degrees_north)
 Column  2: ROSE is RELIEF OF THE SURFACE OF THE EARTH (METERS)
        LATITUDES   ROSE
5.5S / 85:  -5.500  -565.
4.5S / 86:  -4.500 -1108.
3.5S / 87:  -3.500   298.
2.5S / 88:  -2.500  -120.
1.5S / 89:  -1.500  -564.
0.5S / 90:  -0.500 -1831.
0.5N / 91:   0.500 -4030.

or, perhaps use the /NOROW qualifier to remove the coordinates and index numbers from each line, leaving you with the latitudes and data values:

yes? list /norow/y=-5.5:0.5 latitudes, rose[x=134.5]
             DATA SET: /home/users/tmap/ferret/linux/fer_dsets/data/etopo60.cdf
             LATITUDE: 5.5S to 0.5N
             LONGITUDE: ???
 Column  1: LATITUDES is Y[GY=ROSE] (degrees_north)
 Column  2: ROSE is RELIEF OF THE SURFACE OF THE EARTH (METERS)
          ROSE
  -5.500  -565.
  -4.500 -1108.
  -3.500   298.
  -2.500  -120.
  -1.500  -564.
  -0.500 -1831.
   0.500 -4030.

On 6/27/2019 10:49 AM, Xiaoyu Bai wrote:

Dear ferreters,

I am trying to write out .dat files and find that if I use list/file=xxx.dat, the output file will start with South grid (for example, 88.9S). I am wondering whether I can use some qualifiers maybe like /order to change the starting grid from North to South.

Thank you very much and have a good one.

--

Xiaoyu

--
Ansley Manke
NOAA/PMEL Science Data Integration Group
7600 Sand Point Way NE
206-526-6246

--

Xiaoyu