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20050907:NEXRAD Data



Hi Heath,


Comments in text....

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  :
---------------------------------------------------------------------
>
> Hello,
> We are setting up an LDM connection to access NEXRAD data, and am unsure
> about which data stream I should be looking at. I am not handling the tech
> side of the connection, but will be the user of the data. I am thinking that
> the stream I need is the NOAAPORT NEXRAD, but have a couple of questions:
>


Please see:

http://my.unidata.ucar.edu/content/software/ldm/ldm-current/basics/feedtypes/index.html

Level II NEXRAD = NEXRAD2
FT28, CRAFT, NEXRD2
Reserved for distribution of NEXRAD Level-II radar data

and

Level III (NIDS)
NNEXRAD
FT27, NEXRAD
NOAAport NEXRAD


> 1. I have been working with Archived NEXRAD StageIV data in GRIB2 format
> (http://www.joss.ucar.edu/cgi-bin/codiac/fgr_form/id=21.093) and am hoping
> to find something similar (except in near real time). Which data stream most
> closely resembles the Stage IV GRIB2 data? (The links on the NGrid page
> aren't working for me so I couldn't see which products are available from
> that stream).

We do not distribute Stage IV data (assimilated with rain gauge), but the
NIDS products can offer precip values for 1 hour, 3 hour, and storm
total..data, not images...


>
> 2. I really just need hourly precipitation totals (4km resolution is ok, 2
> would be better),

Nominal res of NIDS products are 1km...


 so if you wanted to recommend an easier stream to use for
> that, I'd certainly appreciate the heads up. The key is that imagery alone
> won't be useful necessarily; I am looking for the data.
>
> 3. Are there also digital forecast data from the National Digital Forecast
> Center available through the LDM?


I suspect you mean the NDFD National Digital Forecast Database, and that
is currently being test broadcast on the NGRID feed.

>
> Thanks very much for your help or a point in the right direction. I
> appreciate the assistance.



My pleasure, apologies for the delay..hectic week!



You will need to be assigned an "upstream" feed to begin ingesting data,
please let me know when you are ready (have the LDM up and running with a
fully qualified domain name) and I will get you a host...


Cheers and welcome aboard!



>
> Heath Kelsey
>
> R. Heath Kelsey
> Arnold School of Public Health and
> Baruch Institute GIP Lab
> University of South Carolina
> 800 Sumter Street Rm 311
> Columbia, SC 29208
> p. 803.576.6183
> f.  803.777.8769
> e. address@hidden
>
>
>
>
>
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> <BODY>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial=20
> size=3D2>Hello,</FONT></SPAN></DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial size=3D2>We are =
> setting up an=20
> LDM connection to access NEXRAD data, and am unsure about which data =
> stream I=20
> should be looking at. I am not handling the tech side of the connection, =
> but=20
> will be the user of the data.&nbsp;I am thinking that the stream I need =
> is the=20
> NOAAPORT NEXRAD, but have a couple of questions:</FONT></SPAN></DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial=20
> size=3D2></FONT></SPAN>&nbsp;</DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial size=3D2>1. I =
> have been=20
> working with Archived NEXRAD StageIV data in GRIB2 format&nbsp;(<A=20
> href=3D"http://www.joss.ucar.edu/cgi-bin/codiac/fgr_form/id=3D21.093";>htt=
> p://www.joss.ucar.edu/cgi-bin/codiac/fgr_form/id=3D21.093</A>)=20
> and am hoping to find something similar (except in near real time). =
> Which data=20
> stream most closely resembles the Stage IV GRIB2 data? (The links on the =
> NGrid=20
> page aren't working for me so I couldn't see which products are =
> available from=20
> that stream).</FONT></SPAN></DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial=20
> size=3D2></FONT></SPAN>&nbsp;</DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial size=3D2>2. I =
> really just=20
> need hourly precipitation totals (4km resolution is ok, 2 would be =
> better), so=20
> if you wanted to recommend an easier stream to use for that, I'd =
> certainly=20
> appreciate the heads up. The key is that imagery alone won't be useful=20
> necessarily; I am looking for the data. </FONT></SPAN></DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial=20
> size=3D2></FONT></SPAN>&nbsp;</DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial size=3D2>3. Are =
> there also=20
> digital forecast data from the National Digital Forecast Center =
> available=20
> through the LDM?</FONT></SPAN></DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial=20
> size=3D2></FONT></SPAN>&nbsp;</DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial size=3D2>Thanks =
> very much for=20
> your help or a point in the right direction. I appreciate the=20
> assistance.</FONT></SPAN></DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial=20
> size=3D2></FONT></SPAN>&nbsp;</DIV>
> <DIV><SPAN class=3D842301102-30082005><FONT face=3DArial size=3D2>Heath=20
> Kelsey</FONT></SPAN></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>R. Heath =
> Kelsey</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>Arnold School of Public =
> Health and=20
> </FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>Baruch Institute GIP =
> Lab</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>University of South=20
> Carolina</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>800 Sumter Street Rm =
> 311</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>Columbia, SC =
> 29208</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>p. =
> 803.576.6183</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>f.&nbsp; =
> 803.777.8769</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2>e. =
> address@hidden</FONT></DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV align=3Dleft><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV>&nbsp;</DIV></BODY></HTML>
>
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