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

[IDD #QTY-167283]: data feed

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [IDD #QTY-167283]: data feed
  • Date: Thu, 10 Sep 2009 18:18:19 -0600
Hi Bobby,

re:
> what about hughes net speed, they have a fast 5.0 Mbps speeds, would
> that work better?

Please take a close look at the data volume listing I sent in my last
email and do some calculations to determine what data your or another
Internet connection could handle.

For instance, a 5 Mbps connection would allow for a theoretical maximum
of 2.25 GB/hour. No ISP that I know of provides the full amount of their
stated speed continuously, so a rated 5 Mbps feed is likely to support
much less throughput.  If I was to guess, I would estimate as little as
half of the advertised speed (or 1.135 GB/hour).  On top of that, HughesNet
used to cap the total amount of bandwidth that one could use in a 24 hour
period (I don't know if that is still the case, however).

Given this, I am skeptical that you could receive over the Internet
anywhere close to the volume of data that you are interested in getting.
That is why I suggested that you consider the possibility of installing
a NOAAPort ingest system.

> Data Volume Summary for ldm.meteo.psu.edu
> 
> Maximum hourly volume  11875.355 M bytes/hour
> Average hourly volume   6090.258 M bytes/hour
> 
> Average products per hour     212518 prods/hour
> 
> Feed                           Average             Maximum     Products
>                      (M byte/hour)            (M byte/hour)   number/hour
> NEXRAD2                2230.144    [ 36.618%]     3211.188    60756.660
> CONDUIT                1777.390    [ 29.184%]     5507.293    49197.220
> NGRID                   656.709    [ 10.783%]     1025.174    15458.380
> NEXRAD3                 400.446    [  6.575%]      497.226    33513.880
> HDS                     228.410    [  3.750%]      481.509    18788.260
> FNMOC                   195.984    [  3.218%]     1238.285     2042.660
> NIMAGE                  160.161    [  2.630%]      338.640      183.940
> FSL3                    148.790    [  2.443%]      240.512       35.760
> FSL2                    109.747    [  1.802%]      186.737      271.540
> FNEXRAD                  86.425    [  1.419%]      119.030       52.120
> IDS|DDPLUS               33.012    [  0.542%]       39.296    30073.980
> WSI                      24.339    [  0.400%]       33.306     1821.180
> UNIWISC                  22.016    [  0.362%]       30.037       25.360
> PCWS                      9.308    [  0.153%]       11.248       22.600
> DIFAX                     3.446    [  0.057%]       12.277        4.680
> GEM                       2.947    [  0.048%]       29.473      202.100
> LIGHTNING                 0.983    [  0.016%]        2.024       67.320

Cheers,

Tom
--
****************************************************************************
Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
----------------------------------------------------------------------------
Unidata HomePage                       http://www.unidata.ucar.edu
****************************************************************************


Ticket Details
===================
Ticket ID: QTY-167283
Department: Support IDD
Priority: Normal
Status: Closed