[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

20010413: AMDAR data on NOAAPORT



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
> 
> 
>