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20010413: AMDAR data on NOAAPORT


  • Subject: 20010413: AMDAR data on NOAAPORT
  • Date: Fri, 13 Apr 2001 15:13:11 -0600

Celia,

The data sets are not the same. The FSL files are NetCDF format.
NOAAPORT carries text bulletins.

The NOAAPORT data is global and contains both AMDAR and AIREP. 
I found KAL/JAL planes in an AIREP bulletin. Australian in an AMDAR. 

UAAS11 RJTD 131900^M
AIREP^M
KAL012 4223N 14729E 1828 F370 MS42 240/86=^M
PAL102 42N 160E 1858 F350 MS50 240/85=^M
JAL607 4943N 15921E 1901 F340 MS45 210/120=^M
NCA115 4943N 15921E 1904 F360 MS44 220/85=^M
^M
^C^A^M
580 ^M
UDXX02 EGRR 131918^M
AMDAR 1318^M
LVR EU1795   3956N 05446W 131813 F329 MS485 324/099 TB0 S031=^M
LVR EU1795   3917N 05541W 131820 F329 MS477 324/099 TB0 S031=^M
LVR EU1795   3837N 05636W 131827 F329 MS477 327/095 TB0 S031=^M
LVR EU1795   3757N 05730W 131834 F329 MS475 319/085 TB0 S031=^M
LVR EU1795   3717N 05822W 131841 F329 MS470 318/076 TB0 S031=^M
LVR EU1795   3637N 05913W 131848 F329 MS455 315/084 TB0 S031=^M
LVR EU1795   3557N 06002W 131855 F329 MS455 304/058 TB0 S031=^M
LVR EU1795   3520N 06053W 131902 F349 MS497 315/080 TB0 S031=^M
LVR EU1795   3442N 06144W 131909 F349 MS495 302/077 TB0 S031=^M
LVR EU1795   3406N 06234W 131916 F349 MS492 303/074 TB0 S031=^M


UDAU01 AMMC 131900^M
AMDAR 1319^M
DES AU0033 3741S 14450E 131851 F004 PS167 355/015 TB0 S031^M
  333 F/// VG015=^M
DES AU0033 3741S 14450E 131852 F001 PS123 008/007 TB1 S031^M
  333 F/// VG033=^M
DES AU0027 3337S 14944E 131848 F266 MS305 271/010 TB0 S031^M
  333 F/// VG006=^M
DES AU0027 3341S 14956E 131850 F236 MS232 254/012 TB0 S031^M
  333 F/// VG007=^M
DES AU0027 3345S 15006E 131851 F209 MS190 212/009 TB0 S031^M
  333 F/// VG007=^M


Steve Chiswell
Unidata User SUpport


On Fri, 13 Apr 2001, Celia Chen wrote:

> Chiz,
> 
> Thanks for the explanation on the data latency I saw in FSL's AMDAR
> netCDF data stream.  
> 
> So, is the AMDARS from the NOAAPORT the same dataset as FSL's AMDAR feed?
> It seems we have only seen aircraft observations of the European and 
> Australian region from NOAAPORT data stream.  Have  you seen any that are 
> from the asia/pacific area?
> 
> Celia
> 
> > 
> > 
> > Celia,
> > 
> > GEMPAK decodes the in-situ aircraft observations (including AMDARS) from
> > the NWSTG NOAAPORT data stream using the dcacft decoder. The data is decoded
> > into a ship format GEMPAK file. The LDM pattern action from the GEMPAK 
> > decoders
> > web page examples looks like:
> > 
> > # Decoder for Aircraft Observations
> > WMO     (^U[ABDR].... ....|^XRXX84 KAWN|^YIXX84 KAWN) 
> > ([0-3][0-9])([0-2][0-9])
> >         PIPE    dcacft data/gempak/acft/YYYYMMDDHH_acf.gem
> > 
> > 
> > In regards to the FSL NetCDF data stream, you will find that every 10 
> > minutes,
> > FSL sends all observations collected over the previous hour. As a result, 
> > the
> > FSL files contain a 1 hour window of data, with duplication of observations
> > sent in the previous 5 data files as well as new data which they processed
> > since the previous file was transmitted.
> > 
> > 
> > Steve Chiswell
> > Unidata User Support
> > 
> > 
> > 
> > 
> > On Fri, 13 Apr 2001, Linda Miller wrote:
> > 
> > > Chiz,
> > > 
> > > Here's the one from yesterday.  See any similarities?
> > > 
> > > Linda
> > > 
> > > ---------- Forwarded Message ----------
> > > Date: Thursday, April 12, 2001 3:39 PM -0600
> > > From: Unidata Support <address@hidden>
> > > To: Celia Chen <address@hidden>
> > > Subject: 20010412: netcdf-to-wmo format utility
> > > 
> > > >From: Celia Chen <address@hidden>
> > > >Organization: NCAR/RAP
> > > >Keywords: 200104112303.f3BN34L23087 encoder
> > > 
> > > Hi Celia-
> > > 
> > > >I am pretty sure what I need is the WMO FM42 format.  I have been 
> > > >receiving
> > > >the AMDAR data from FSL via the LDM.  The files are in netCDF format
> > > >and we would like to see if we can convert them into (back to?) the
> > > >WMO FM42 format.
> > > 
> > > We have nothing like that.  I would think it would be easier to write
> > > a decoder to take the netCDF data to whatever format your FM42 decoder
> > > puts out, rather than encoding and running it through a separate decoder.
> > > 
> > > >I just learned that we get the AMDAR data as a WMO product.  Do you
> > > >happen to know if the data we receive from FSL is the same?  I do
> > > >notice that the FSL data is about 2 hrs late.
> > > 
> > > We were not aware that the AMDAR data are available as a WMO product.
> > > these products on the NOAAPort feed?
> > > 
> > > As to the delay, we know there is some processing occurring at FSL and
> > > you may be seeing some latency due to that process.  Can you give an
> > > example of a late product?
> > > 
> > > Also, are you saying that the WMO AMDARs are 2 hours ahead of the FSL 
> > > data,
> > > or just that the FSL data is late.  If the latter, are the WMO AMDARs
> > > on time?
> > > 
> > > I'm cc'ing this to Linda Miller who has been our contact with FSL on
> > > the ACARS and AMDAR data.
> > > 
> > > Don Murray
> > > 
> > > ---------- End Forwarded Message ----------
> > > 
> > > 
> > > 
> > > Linda Miller - address@hidden
> > > External Liaison, Unidata
> > > University Corporation for Atmospheric Research
> > > P.O. Box 3000
> > > Boulder, CO 80307-3000
> > > 303 497-8646 fax: 303-497-8690
> > > URL:  http://www.unidata.ucar.edu/staff/lmiller/un.act.html
> > > 
> > > 
> > 
> > 
> 
> 
> -- 
> Celia Chen
> RAP/NCAR
> 
> "Nothing is as strong as gentleness or as gentle as strength."
>                                       - Dove Milk Promises
> 
> 
>