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

[IDD #UTE-334804]: LDM upstream data feeds

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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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 #UTE-334804]: LDM upstream data feeds
  • Date: Mon, 19 Dec 2011 17:15:21 -0700
Hi Marty,

re: want upstream feed site(s) for
> PPD, DDS, IDS, CONDUIT, FNEXRAD, LIGHTNING, WSI, FNMOC
> NIMAGE

You should already be able to get most of these feeds from
UCSD (machine aeolus.ucsd.edu).  Comments follow:

LIGHTNING - lightning data is only available as point-to-point
            feeds from upstream providers:

            NLDN - UAlbany
            USPLN - WSI

            Please review the information in the Unidata lightning
            pages:

            Unidata HomePage
            http://www.unidata.ucar.edu
              Data
              http://www.unidata.ucar.edu/data
                Lightning Data
                http://www.unidata.ucar.edu/data/#lightning

WSI      - WSI provides NEXRAD Level III data and composites in the
           WSI feed.  The problem is that this is _not_ free.  If
           you are interested, nonetheless, you should ask about the
           feed if/when you talk to WSI about the USPLN lightning
           data (which _is_ free to Unidata universities)

CONDUIT  - the CONDUIT datastream is a very high volume service; it
           contains upwards of 6 GB/hour for hours of heaviest volume.
           The NGRID feed might have most if not all of the things you
           are looking for.

           The following listing will give you and idea of the volumes
           of each datastream available in the IDD:

Data Volume Summary

Maximum hourly volume  12034.756 M bytes/hour
Average hourly volume   6224.844 M bytes/hour

Average products per hour     226051 prods/hour

Feed                           Average             Maximum     Products
                     (M byte/hour)            (M byte/hour)   number/hour
CONDUIT                3050.341    [ 49.003%]     6272.319    67638.923
NEXRAD2                1148.165    [ 18.445%]     1801.791    43562.538
NGRID                   818.945    [ 13.156%]     1548.874    16639.615
NEXRAD3                 414.746    [  6.663%]      599.432    41963.154
FNMOC                   248.996    [  4.000%]     1679.598     2168.808
HDS                     243.070    [  3.905%]      414.900    16604.615
NIMAGE                  145.391    [  2.336%]      327.920      196.731
FNEXRAD                  52.569    [  0.845%]       62.029       69.538
IDS|DDPLUS               41.855    [  0.672%]       54.182    36328.846
EXP                      30.511    [  0.490%]       65.493      338.269
UNIWISC                  23.294    [  0.374%]       33.865       25.885
DIFAX                     3.229    [  0.052%]       12.716        4.577
FSL2                      1.767    [  0.028%]        2.107       21.654
GEM                       1.122    [  0.018%]       13.108      156.846
LIGHTNING                 0.749    [  0.012%]        1.391      329.731
GPS                       0.093    [  0.001%]        1.094        1.000

PPD,DDS,IDS  - I think you mean PPS,DDS,IDS.  These are all part of the
               IDS|DDPLUS datastream.  It is available from UCSD.

FNMOC        - UCSD is not receiving this datastream.  You can feed
               it from idd.unidata.ucar.edu

FNEXRAD      - this is available from UCSD

NIMAGE       - this is available from UCSD

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: UTE-334804
Department: Support IDD
Priority: Normal
Status: Closed