Re: [idvusers] aircraft track data

• To: "Larry D. Oolman" <ldoolman@xxxxxxxx>
• Subject: Re: [idvusers] aircraft track data
• From: Don Murray <Don.Murray@xxxxxxxx>
• Date: Mon, 11 Apr 2011 10:44:31 -0600

Don

On 4/11/11 10:42 AM, Larry D. Oolman wrote:

Don Murray wrote:

I'm not sure the IDV handles the 2D dimensions. I would suggest
sending a note to support-idv@xxxxxxxxxxxxxxxx.

Don

If the file is RAF/Nimbus, the second dimension is not required for
one sample per second data.

On 4/10/11 12:39 PM, Sebastian Engelstaedter wrote:

Hi all,

I am new to IDV but it looks like a powerful tool. I want to plot
aircraft track data which come in netCDF format. However, IDV is unable
to read in the current netcdf file I have. Can someone point me to the
correct format. At the moment the netcdf file looks something like this:


dimensions:
data_point = UNLIMITED ; // (28980 currently)
sps01 = 1 ;
variables:
int Time(data_point) ;
Time:long_name = "time of measurement" ;
Time:units = "seconds since 2011-04-04 00:00:00 +0000" ;
Time:_FillValue = -1 ;
Time:standard_name = "time" ;
float IAS_RVSM(data_point, sps01) ;
IAS_RVSM:long_name = "Indicated air speed from the aircraft RVSM (air
data) system. " ;
IAS_RVSM:units = "m s-1 " ;
IAS_RVSM:_FillValue = -9999.f ;
IAS_RVSM:Frequency = 1s ;
IAS_RVSM:Number = 516s ;
byte IAS_RVSM_FLAG(data_point, sps01) ;
IAS_RVSM_FLAG:long_name = "Flag for Indicated air speed from the
aircraft RVSM (air data) system. " ;
IAS_RVSM_FLAG:units = 1s ;
IAS_RVSM_FLAG:_FillValue = -1b ;
IAS_RVSM_FLAG:Frequency = 1s ;
float TAS_RVSM(data_point, sps01) ;
TAS_RVSM:long_name = "True air speed from the aircraft RVSM (air data)
system and deiced temperature. " ;
TAS_RVSM:units = "m s-1 " ;
TAS_RVSM:_FillValue = -9999.f ;
TAS_RVSM:Frequency = 1s ;
TAS_RVSM:Number = 517s ;
TAS_RVSM:standard_name = "platform_speed_wrt_air" ;
byte TAS_RVSM_FLAG(data_point, sps01) ;
TAS_RVSM_FLAG:long_name = "Flag for True air speed from the aircraft
RVSM (air data) system and deiced temperature. " ;
TAS_RVSM_FLAG:units = 1s ;
TAS_RVSM_FLAG:_FillValue = -1b ;
TAS_RVSM_FLAG:Frequency = 1s ;
float TAT_DI_R(data_point, sps01) ;
TAT_DI_R:long_name = "True air temperature from the Rosemount deiced
temperature sensor. " ;
TAT_DI_R:units = "degK " ;
TAT_DI_R:_FillValue = -9999.f ;
TAT_DI_R:Frequency = 1s ;
TAT_DI_R:Number = 520s ;
TAT_DI_R:standard_name = "air_temperature" ;
....




Any help is much appreciated.

Best wishes,
Sebastian

--
Don Murray
NOAA/ESRL/PSD and CIRES
303-497-3596
http://www.esrl.noaa.gov/psd/people/don.murray/

• Follow-Ups:
  • Re: [idvusers] aircraft track data
    • From: Yuan Ho

• References:
  • [idvusers] aircraft track data
    • From: Sebastian Engelstaedter
  • Re: [idvusers] aircraft track data
    • From: Don Murray
  • Re: [idvusers] aircraft track data
    • From: Larry D. Oolman