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Re: 20020515: NEXRAD feed question

Subject: NEXRAD feed question
Organization: UCAR/Unidata

Patrick, 

Splitting the feed is AOK by us...

Maybe requesting half the regions from one and half from the other..

http://www.unidata.ucar.edu/packages/ldm/feedtypes/howto-nnexrad.html

and

http://205.156.54.206/cgi-bin/chg_show.pl?fn=XR-06ii-state.txt

You are correct in that this will ease the load on both the upstream
sites, but do not ~expect better performance on your end..bandwidth will
still be the limiting factor.

You may also want to sub-set the products...You mentioned that you were
doing a precip study, so maybe you do not need the vel products or maybe
you just want the precip prods, that you will need to evaluate and answer,
but could increase performance if you could determine if prods were wanted
or not..just a suggestion.

Sounds like an interesting project..real science, I wish you success.

Again, let us know if we can help further,

-Jeff
____________________________                  _____________________
Jeff Weber                                    address@hidden
Unidata Support                               PH:303-497-8676 
NWS-COMET Case Study Library                  FX:303-497-8690
University Corp for Atmospheric Research      3300 Mitchell Ln
http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000
________________________________________      ______________________

On Wed, 15 May 2002, Patrick O'Reilly wrote:

> Hi Jeff,
> 
> Things are fine here....well, fine for Iowa.  A semi-unrelated question,
> though.  The last few months, the connection to stokes has been poor.  Ping
> times around 100ms are common.  Papagayo seems to stay around 50-60ms.  I
> tried requesting a couple feeds from stokes and a couple from papagayo, and
> there was rarely a large latency.  Is it a possibility to set up this way,
> i.e. splitting my requests between both hosts?  It seems much faster on my
> end, and the load will be less on if it were one machine upstream.  If you
> would prefer to me feed from one machine for some reason, let me know.
> 
> If you are at the Gempak training this summer, I'll see you there, if I am
> accepted.  Thanks!
> 
> Patrick
> 
> ----- Original Message -----
> From: "Jeff Weber" <address@hidden>
> To: "Patrick O'Reilly" <address@hidden>
> Cc: <address@hidden>
> Sent: Wednesday, May 15, 2002 1:37 PM
> Subject: Re: 20020515: NEXRAD feed question
> 
> 
> > Subject: NEXRAD feed question
> > Organization: UCAR/Unidata
> > Keywords: 200205151757.g4FHvUa03233
> > ----------------------------------
> > Hi Patrick,
> >
> > Hows things? Hope all is well...
> >
> > I suggest contacting both
> >
> > stokes:
> >
> > Mark
> > Laufersweiler
> > address@hidden
> > ---------------
> >
> > and papagayo:
> >
> > Clint Rowe
> > address@hidden
> >
> >
> > To see if they have any objections, as the impact will be felt at the feed
> > site as well. I would also suggest opening up your request for NNEXRAD to
> > ".*" for a trial period to be certain of no catastrophic overloading at
> > either site. i suspect this will be no problem, but better safe than in a
> > data void..
> >
> >
> > If I can help further please let me know,
> >
> > -Jeff
> > ____________________________                  _____________________
> > Jeff Weber                                    address@hidden
> > Unidata Support                               PH:303-497-8676
> > NWS-COMET Case Study Library                  FX:303-497-8690
> > University Corp for Atmospheric Research      3300 Mitchell Ln
> > http://www.unidata.ucar.edu/staff/jweber      Boulder,Co 80307-3000
> > ________________________________________      ______________________
> >
> > On Wed, 15 May 2002, Unidata Support wrote:
> >
> > >
> > > ------- Forwarded Message
> > >
> > > >To: Unidata Support <address@hidden>
> > > >From: "Patrick O'Reilly" <address@hidden>
> > > >Subject: NEXRAD feed question
> > > >Organization: UCAR/Unidata
> > > >Keywords: 200205151757.g4FHvUa03233
> > >
> > > This is a multi-part message in MIME format.
> > >
> > > ------=_NextPart_000_0027_01C1FC10.058568B0
> > > Content-Type: text/plain;
> > > charset="iso-8859-1"
> > > Content-Transfer-Encoding: quoted-printable
> > >
> > > Greetings,
> > >
> > > I (or more accurately, blizzard.storm.uni.edu) currently receive NEXRAD
> =
> > > data for 3 stations in my area.  This is usually fine, but for 2 weeks =
> > > in June/July, we are hosting a forecasting workshop.  Precip =
> > > verification is one of many tasks, and I would like to get all the =
> > > NEXRAD data for CONUS for this time period.  We feed from stokes and =
> > > papagayo.  Is this a feasible request?  It would be possible to reduce =
> > > other feeds to reduce the load for that time period.  We are looking at
> =
> > > June 23-July 5.  Thought I would get this out there so's I can plan =
> > > things.  Thanks!
> > >
> > > Patrick
> > >
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > Patrick O'Reilly                               Support Scientist
> > > The STORM Project            address@hidden
> > > 208 Latham Hall                             ph: 319-273-3789
> > > University of Northern Iowa
> > > Cedar Falls, IA 50614            =20
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  =20
> > >
> > >
> > > ------=_NextPart_000_0027_01C1FC10.058568B0
> > > Content-Type: text/html;
> > > charset="iso-8859-1"
> > > Content-Transfer-Encoding: quoted-printable
> > >
> > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
> > > <HTML><HEAD>
> > > <META http-equiv=3DContent-Type content=3D"text/html; =
> > > charset=3Diso-8859-1">
> > > <META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR>
> > > <STYLE></STYLE>
> > > </HEAD>
> > > <BODY bgColor=3D#efefef>
> > > <DIV><FONT face=3D"MS Sans Serif" size=3D2>Greetings,</FONT></DIV>
> > > <DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT>&nbsp;</DIV>
> > > <DIV><FONT face=3D"MS Sans Serif" size=3D2>I (or more accurately,=20
> > > blizzard.storm.uni.edu) currently receive NEXRAD data for 3 stations in
> =
> > > my=20
> > > area.&nbsp; This is usually fine, but for 2 weeks in June/July, we are =
> > > hosting a=20
> > > forecasting workshop.&nbsp; Precip verification is one of many tasks, =
> > > and I=20
> > > would like to get all the NEXRAD data for CONUS for this time =
> > > period.&nbsp; We=20
> > > feed from stokes and papagayo.&nbsp; Is this a feasible request?&nbsp; =
> > > It would=20
> > > be possible to reduce other feeds to reduce the load for that time =
> > > period.&nbsp;=20
> > > We are looking at June 23-July 5.&nbsp; Thought I would get this out =
> > > there so's=20
> > > I can plan things.&nbsp; Thanks!</FONT></DIV>
> > > <DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT>&nbsp;</DIV>
> > > <DIV><FONT face=3D"MS Sans Serif" size=3D2>Patrick</FONT></DIV>
> > > <DIV>&nbsp;</DIV>
> > > <DIV><FONT face=3D"MS Sans Serif"=20
> > > size=3D2>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<BR>Patrick=20
> > >
> O'Reilly&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
> > >
> ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
> > > &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
> > > Support Scientist<BR>The STORM=20
> > >
> Project&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
> > >  <A=20
> > >
> href=3D"mailto:address@hidden";>address@hidden</A><BR>20=
> > > 8 Latham=20
> > >
> Hall&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
> > >
> sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
> > > p;&nbsp;&nbsp;&nbsp;&nbsp;=20
> > > ph: 319-273-3789<BR>University of Northern Iowa<BR>Cedar Falls, IA=20
> > >
> 50614&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
> > > bsp;=20
> > > <BR>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~&nbsp;&nbsp;=20
> > > <BR></FONT></DIV></BODY></HTML>
> > >
> > > ------=_NextPart_000_0027_01C1FC10.058568B0--
> > >
> > >
> > > ------- End of Forwarded Message
> > >
> > >
> >
> 
>