Re: [ferret_users] FERRET erroneously reports '0' for values of field

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi Gary,
Yes, if you could put an example file on an FTP server or something, I'd be happy to have a look.  We can take this off-line and then report back to the Users List when we have a resolution.

Ansley


On 4/22/2011 10:22 AM, Gary Strand wrote:

I've got a meridional overturning circulation netCDF file ('ncks -M' reports as "NC_FORMAT_64BIT") from CESM that FERRET 6.67 reports as being all zeroes:

prompt> ferret

        NOAA/PMEL TMAP

        FERRET v6.67  

        Linux(gfortran) 2.6.18-238.1.1.el5 - 02/11/11

        22-Apr-11 11:19     

yes? use b40.rcp6_0.1deg.002.pop.h.MOC.2005_cat_2100.nc 

 *** NOTE: netCDF bounds variable definition error

 *** NOTE: Bounds definition "time_bound" points to no existing axis

 *** NOTE: Ignoring BOUNDS attribute

 *** NOTE: unsupported ordering of axes in variable MOC

 *** NOTE: The default ordering will be used

 *** NOTE: unsupported ordering of axes in variable N_HEAT

 *** NOTE: The default ordering will be used

 *** NOTE: unsupported ordering of axes in variable N_SALT

 *** NOTE: The default ordering will be used

yes? stat moc

 

             Meridional Overturning Circulation

             X (degrees_north): -79.8 to 90.3

             Y (centimeters): -500 to 562498.1

             Z: 0.5 to 3.5

             T: 0.5 to 2.5

             DATA SET: ./b40.rcp6_0.1deg.002.pop.h.MOC.2005_cat_2100.nc

 

 Total # of data points: 144570 (395*61*3*2)

 # flagged as bad  data: 0

 Minimum value: 0

 Maximum value: 0

 Mean    value: 0 (unweighted average)

 Standard deviation: 0

However, 'ncdump' reports reasonable values:

[...]

data:

 MOC =

  0, 0, 0, 7.293151e-06, 4.586829e-05, 0.0001086234, 0.0001981362, 

    0.0002739704, 0.0003523373, 0.0004428429, 0.0004798292, 0.0005148678, 

    0.0005606969, 0.0006546164, 0.000795023, 0.0009868621, 0.00122963, 

    0.001515764, 0.001819286, 0.002128776, 0.002427572, 0.002738651, 

    0.003056958, 0.003357567, 0.00365741, 0.00398666, 0.004283821, 

    0.00448254, 0.004651815, 0.004769182, 0.004882107, 0.005036599, 

    0.005236071, 0.005393064, 0.005440708, 0.005509655, 0.005650571, 

    0.005892823, 0.006150202, 0.006350448, 0.006449249, 0.00643103, 

    0.006318389, 0.006150256, 0.00599448, 0.005882651, 0.005883407, 

    0.005989434, 0.006155382, 0.006353982, 0.00656924, 0.00703707, 

    0.007635636, 0.008280867, 0.008880544, 0.009361924, 0.009679574, 

    0.009875401, 0.009994681, 0.01002666, 0.01002231, 0.01004133, 0.01010167, 

    0.01010119, 0.01001718, 0.009645671, 0.009257617, 0.008819528, 

    0.008371484, 0.007981695, 0.007516319, 0.007163189, 0.006798618, 

    0.006286634, 0.00575909, 0.005276864, 0.004866853, 0.004454923, 

    0.003998751, 0.00368809, 0.003507458, 0.003490006, 0.003492805, 

    0.003589784, 0.003553376, 0.003458555, 0.003237247, 0.002961536, 

    0.002665177, 0.002289429, 0.001770442, 0.001108691, 0.0003436009, 

    -0.0004126777, -0.001207883, -0.001983767, -0.0027295, -0.00339968, 

    -0.003985971, -0.004459063, -0.004838814, -0.005160118, -0.005424341, 

    -0.005659973, -0.005883003, -0.00612476, -0.006343444, -0.006598587, 

    -0.006885111, -0.007209664, -0.007573003, -0.007915352, -0.008281161, 

    -0.008651982, -0.009012814, -0.009346967, -0.009662102, -0.009967417, 

    -0.01024216, -0.01050867, -0.01075578, -0.01098034, -0.01119084, 

    -0.01137487, -0.01152514, -0.01165392, -0.01175673, -0.01182987, 

    -0.01187923, -0.01189193, -0.01186688, -0.01181171, -0.01172199, 

    -0.01158732, -0.01143288, -0.01126568, -0.01109347, -0.01091641, 

[...]

Would you like me to make an example file available?

Thanks!

Gary Strand

strandwg@xxxxxxxx