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NEXRAD data feeds



Hi David,

Basically it breaks down like this:

NNEXRAD
FT27, NEXRAD
NOAAport NEXRAD

and

NEXRD2
FT28, CRAFT
Reserved for CRAFT level 2 radar data distribution


and

FNEXRAD
FT13, NMC
NOAAPORT NEXRAD Floater


[this is the feed that contains the 1km nat'l mosaic which is in GINI
format...gridded]


NNEXRAD is the level III (NIDS) data "products".

These products are derived from the level II data.

The NIDS products include:

DPA     N0S     N0Z     N1R     N1V     N2S     N3S     NET     NVL
N0R     N0V     N1P     N1S     N2R     N3R     NCR     NTP     NVW


which translates to:


    Base Relectivity
    Composite Reflectity
    Layer Composite Reflectivity
    Echo Tops
    Vertically Integrated Liquid
    One-Hour Precipitation
    Three-Hour Precipitation
    Storm Total Precipitation
    Hourly Digital Rainfall Array
    Radial Velocity
    Velocity Azimuth Display Wind
    Free Text Message


The level II data is volumetric and contains all tilts in its scan...but
parameters such as 1 hr precip, are not represented. You can create your
own algorithm to determine rain rates based upon reflectivity values.




I suspect you would want the level III data as it more accurately delivers
what I think you want ( 1 & 3 hour storm totals, and storm total precip)

and also the floater FNEXRAD to get the 1 Km mosaic of base reflectivity.


So in a nutshell

FNEXRAD

and

NNEXRAD ( and a list of sites, or do you want ALL of them)

Thoughts....


Jeff
---------------------------------------------------------------------
Jeff Weber                                    address@hidden        :
Unidata Program Center                        PH:303-497-8676        :
University Corp for Atmospheric Research      3300 Mitchell Ln       :
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000  :
---------------------------------------------------------------------

On Thu, 9 Sep 2004, Unidata Support wrote:

>
> ------- Forwarded Message
>
> >To: General Support <address@hidden>
> >From: Ben Domenico <address@hidden>
> >Subject: RE: NexRad Data (fwd)
> >Organization: UCAR/Unidata
> >Keywords: 200409091630.i89GU7nK011179
>
> Hi,
>
> I'm forwarding this note from David Maidment to our support email list, so
> we can get the mail into the tracking system and have the proper experts
> respond.
>
> -- Ben
>
> ---------- Forwarded Message ----------
> Date: Thursday, September 09, 2004 11:17 AM -0500
> From: David Maidment <address@hidden>
> To: Ben Domenico <address@hidden>
> Subject: RE: NexRad Data
>
>
> Ben:
>
> Can you help us to understand what we are dealing with concerning Nexrad
> data feeds from
> Unidata.   Tomislav is trying to build up a data collection at the Texas
> Advanced Computation
> Center of Nexrad information that we can use for flood analysis and
> forecasting.   We are a
> bit bewildered by the plethora of Nexrad products that you have.
>
> David
>
>
>
>
> -----Original Message-----
> From: Tomislav Urban [mailto:address@hidden
> Sent: Thursday, September 09, 2004 9:47 AM
> To: David Maidment
> Cc: address@hidden
> Subject: NexRad Data
>
>
>
> David --
>
>
>
> I would need to know which data products we would like to include in the TG
> collection.  This is the list provided by UniData, it seems that there are
> 3 NexRad related streams:
>
>
>
> NNEXRAD
>
> FT27, NEXRAD
>
> NOAAport NEXRAD
>
>
> NEXRD2
>
> FT28, CRAFT
>
> Reserved for CRAFT level 2 radar data distribution
>
>
> NXRDSRC
>
> FT29
>
> Reserved for NCDC use for archiving NEXRAD level 2 data.
>
>
>
> Please let me know which would be most appropriate.  Thanks!
>
>
>
> Primary Name
>
> Alternate Names*
>
> Description
>
>
> PPS
>
> FT0
>
> Public Products Service
>
> DDS
>
> FT1, DOMESTIC
>
> Domestic Data Service
>
> HDS
>
> FT2, HRS
>
> High resolution Data Service
>
>
> IDS
>
> FT3, INTNL
>
> International Data Service
>
>
> SPARE
>
> FT4
>
> Spare, available for IDD use.
>
>
> UNIWISC
>
> MCIDAS, FT5
>
> Satellite imagery and derived products from the Unidata/Wisconsin Broadcast
>
>
> PCWS
>
> FT6, ACARS
>
> ACARS data, from commercial aircraft
>
>
> FSL2
>
> FT7, PROFILER
>
> Wind profiler data from FSL
>
>
> FSL3
>
> FT8
>
> Reserved for FSL use
>
>
> FSL4
>
> FT9
>
> Reserved for FSL use
>
>
> FSL5
>
> FT10
>
> Reserved for FSL use
>
>
> AFOS
>
> FT11, NMC1, GPSSRC
>
> National Weather Service AFOS
>
>
> NMC2
>
> FT12, NCEPH
>
> CONDUIT model data
>
>
> FNEXRAD *
>
> FT13, NMC3
>
> NOAAPORT NEXRAD Floater
>
> NLDN
>
> FT14
>
> National Lighting Data Network
>
>
> WSI
>
> FT15
>
> NIDS radar products
>
>
> DIFAX
>
> FT16
>
> Unidata community-generated replacement for defunct DIFAX feed
>
>
> FAA604
>
> FT17, FAA, 604
>
> FAA604 products for NWS use (private network), but available for IDD use.
>
>
> GPS
>
> FT18
>
> Reserved for use in SuomiNet
>
>
> FNMOC *
>
> FT19, SEISMIC, NOGAPS
>
> NOGAPS and COAMP model data from FNMOC
>
> GEM
>
> FT20, CMC
>
> Canadian Meteorological Center GEM model outputs.
>
>
> NIMAGE
>
> FT21, IMAGE
>
> NOAAport imagery (for future use)
>
>
> NTEXT
>
> FT22, TEXT
>
> NOAAport text products (for future use)
>
>
> NGRID
>
> FT23, GRID
>
> NOAAport gridded binary (GRIB, GRID) products (for future use)
>
>
> NPOINT
>
> FT24, POINT, NBUFR, BUFR
>
> Reserved for NOAAport point products (for future use)
>
>
> NGRAPH
>
> FT25, GRAPH
>
> NOAAport Redbook Graphics (for future use)
>
>
> NOTHER
>
> FT26, OTHER
>
> Reserved for other NOAAport data (for future use)
>
>
> NNEXRAD
>
> FT27, NEXRAD
>
> NOAAport NEXRAD
>
>
> NEXRD2
>
> FT28, CRAFT
>
> Reserved for CRAFT level 2 radar data distribution
>
>
> NXRDSRC
>
> FT29
>
> Reserved for NCDC use for archiving NEXRAD level 2 data.
>
> EXP
>
> FT30
>
> For testing, experiments, and transient or low-interest data streams
>
>
> ANY
>
> FT0 | FT1 | FT2 | ... | FT31
>
> Predefined feed set name for any feed type
>
>
> NONE
>
> -
>
> Predefined feed set name for no feed types (will not match anything)
>
>
> DDPLUS
>
> FT0 | FT1
>
> Predefined feed set name for PPS or DDS.
>
>
> WMO
>
> FT0 | FT1 | FT2 | FT3
>
> Predefined feed set name for PPS, DDS, HDS, or IDS.
>
>
> UNIDATA
>
> FT0 | FT1 | FT2 | FT3 | FT5
>
> Predefined feed set name for PPS, DDS, HDS, IDS, or MCIDAS.
>
>
> FSL
>
> FT6 | FT7 | FT8 | FT9 | FT10
>
> Predefined feed set name for PCWS, FSL2, FSL3, FSL4, or FSL5.
>
>
> NMC
>
> FT11 | FT12 | FT13
>
> Predefined feed set name for AFOS, NMC2, or NMC3.
>
>
> NPORT
>
> FT22 | FT23 | FT24 | FT25 | FT26
>
> Predefined feed set name for NTEXT, NGRID, NPOINT, NGRAPH, or NOTHER.
>
>
>
>
>
>
> ---------- End Forwarded Message ----------
>
>
>
> --
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