[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[IDD #QTY-167283]: data feed
- Subject: [IDD #QTY-167283]: data feed
- Date: Thu, 10 Sep 2009 17:31:39 -0600
Hi Bobby,
re: where are you located
> greeneville tn
OK.
> i'm amture meteorlogist, plus i take rainfall measurements
> for nws and i'm a ema volunteer, i have a weather station,
> i have my own web page http://greenevilleweather.net
OK.
> penn state is alright, but like to have all the models and satellite and
> radar.
> that's what i'm looking for?
My previous comment still holds: Penn State is one of the top level
relay nodes for data flowing in the IDD. By this I mean that they
_have_ all of the model data, all of the satellite data, and all
of the radar data. Art's concern was that your broadband Internet
connection would likely not be able to handle all of this data, and
I would agree in principle.
The full suite of data flowing in the IDD is best illustrated by the
following real time IDD statistics listing for the data that is available
via the Penn State relay:
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
As you can see from this listing, there is an average of ~6 GB/hour of
data available, and volumes can be as high as ~11.8 GB/hour. For reference,
6 GB/hour is 13 Mb/second and 11.8 GB/hour is 26 Mb/second.
Given your desire for "all" data, you might consider the option of
installing a NOAAPort reception system at your house. This would require
a large Cband satellite dish (3.8m or larger) a high quality PLL LNB,
a DVB-S converter (NOAAPort uses DVB-S broadcast), high quality coax
cable from the LNB to the DVB-S converter (e.g., quad shielded RG-6),
a PC running Linux or Solaris Unix that has two Ethernet interfaces,
and the software to ingest the NOAAPort datastream. Satellite dishes
can sometimes be found for free (people getting rid of old installations),
but it is likely that you would have to purchase the PLL LNB. You
would definitely have to purchase the DVB-S converter (we use the same
as the NWS, Novra S75), cabling and computer. The software for doing
the ingest can be gotten for free (we make our NOAAPort ingest software
available for free, but with the Big Boy warranty (i.e., do not expect
support from us)).
While installing and running a NOAAPort ingest site is not cheap, it
is likely to allow you to get more data than you could through a
commodity Internet connection.
The IDD datastreams that are populated by the NOAAPort broadcast are:
IDS|DDPLUS - global observational data
HDS - lower resolution NCEP model output
NGRID - higher resolution NCEP model output
NEXRAD3 - Nexrad Level III radar products
NIMAGE - GOES satellite images
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