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[IDD #MTL-429470]: FW: ECMWF
- Subject: [IDD #MTL-429470]: FW: ECMWF
- Date: Tue, 04 Dec 2012 14:33:23 -0700
Hi Jim and Steve,
re: Steve Decker wrote:
> I am not sure if that would violate the various Unidata terms and
> conditions. I've sent this to the Unidata folks for clarification.
A Unidata's site's willingness to feed an individual data available in the
Unidata
IDD does not violate any Unidata-imposed terms or conditions per se, but there
are
some restrictions on the data itself:
1) WMO Resolution 40 restrictions
There are data products that are broadcast in NOAAPort and then relayed
through the IDD that are subject to WMO Resolution 40 restrictions.
One important part of WMO Resolution 40 is that products designated
as being restricted by the country that produces them may not be
re-imported into their country of origin or used for particular purposes.
The difficult part in complying with WMO Resolution 40 is that there is
no easily obtainable, definitive list of the products that are subject
to WMO Resolution 40 restrictions. Unidata educational organizations
typically do not have to worry about these restrictions (except for
facilitating re-importation into the country of origin) since WMO
Resolution 40 explicitly allows use by educational organizations.
2) data whose re-distribution and use is explicitly restricted by the data
provider
Examples of data whose redistribution and use is explicitly restricted
are:
- lightning data in the LIGHTNING feed that is made available from UAlbany
(NLDN) and WSI Corporation (USPLN)
- ACARS data available in the PCWS feed
- products in the WSI datastream
Unidata university participants are allowed to relay all non-restricted data to
individuals/sites if they so choose, but it is their responsibility to support
the non-Unidata sites that they feed, not the Unidata Program Center's. It is
also the responsibility of the site acting in this capacity to make sure that
the folks receiving data from them understand and agree to abide by data
redistribution and use restrictions as spelled out in WMO Resolution 40.
For Jim specifically:
Question:
- if Kearny High School is not interested in operating an LDM-based data ingest
capability as a Unidata associate member, are you sure that you want to do
this as an individual?
The reason I ask is mainly because the volumes of data that is available
in the IDD are daunting. The following real-time statistics listing will
give you an idea of the volumes that are flowing in each IDD datastream:
Data Volume Summary for shemp.unidata.ucar.edu
Maximum hourly volume 14338.807 M bytes/hour
Average hourly volume 8887.262 M bytes/hour
Average products per hour 266560 prods/hour
Feed Average Maximum Products
(M byte/hour) (M byte/hour) number/hour
CONDUIT 3371.287 [ 37.934%] 5400.211 72973.574
NEXRAD2 1951.544 [ 21.959%] 3107.763 46759.426
NGRID 884.460 [ 9.952%] 1446.086 19320.149
NEXRAD3 799.953 [ 9.001%] 1212.365 66111.894
FSL2 668.576 [ 7.523%] 1386.980 825.872
HDS 331.668 [ 3.732%] 506.504 18169.064
SPARE 256.770 [ 2.889%] 883.902 9.532
FNMOC 223.008 [ 2.509%] 1662.387 2410.574
NIMAGE 127.709 [ 1.437%] 241.462 182.128
GEM 76.182 [ 0.857%] 410.555 939.000
FNEXRAD 55.818 [ 0.628%] 66.329 70.468
EXP 49.343 [ 0.555%] 97.932 400.319
IDS|DDPLUS 46.203 [ 0.520%] 62.264 38009.553
UNIWISC 25.310 [ 0.285%] 37.260 28.404
PCWS 14.392 [ 0.162%] 20.102 21.957
DIFAX 3.694 [ 0.042%] 12.963 4.872
LIGHTNING 1.246 [ 0.014%] 4.110 322.149
GPS 0.097 [ 0.001%] 0.935 0.957
If you are not looking to receive data in real-time and 24x7, then remote
access to data hosted on ADDE, RAMADDA and THREDDS servers via an application
like the Unidata IDV may be more useful to you. I must follow this up
by letting you know that the amount of ECMWF data that is available through
these servers is even less than is available in the IDD. The reason for
this is that making the data available on a server violates WMO Resolution
40 restrictions, so we (and others) can not make products so restricted.
Cheers,
Tom
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Ticket Details
===================
Ticket ID: MTL-429470
Department: Support IDD
Priority: Normal
Status: Closed