IDD and NOAAPort
Status Report: October 2012 - April 2013
Mike Schmidt, Jeff Weber, Tom Yoksas
Strategic Focus Areas
The IDD/NOAAPort group's work supports the following Unidata funding proposal focus areas:
- Enable widespread, efficient access to geoscience data
A project like the IDD demonstrates how sites can employ the LDM to move data in their own environments. - Develop and provide open-source tools for effective use of
geoscience data
The IDD is powered by the Unidata LDM-6 which is made freely available to all. The Unidata NOAAPort ingest package is being used by a variety of university and non-university community members. Both the LDM and NOAAPort ingest packages will be bundled by Raytheon with AWIPS-II. - Provide cyberinfrastructure leadership in data discovery,
access, and use
The community-driven IDDs provide push data services to users an ever increasing community of global educators and researchers - Build, support, and advocate for the diverse geoscience
community
Providing access to data in real-time is a fundamental Unidata activity.
The IDD-Brasil, the South American peer of the North American IDD operated by the UPC, is helping to extend real-time data delivery outside of the U.S. to countries in South America and Africa. The Universidad de Costa Rica is experimenting with relaying data received in the IDD to Colombia.
IDD Activities Since the Last Status Report
- Unidata continues to act as a toplevel relay in NEXRAD Level II data distribution for university sites and others that were receiving data from the MAX GigaPoP that was decommissioned by the NWS. The other toplevel relay sites for Level II data are the ERC (Education and Research Consortium), IRaDS (Integrated Robust Assured Data Services), and Purdue University.
- Unidata is receiving High Resolution Rapid Refresh (HRRR) grids (both 2D and 3D fields) in an LDM/IDD feed from NOAA/GSD. The intention is to make these products available very soon from the Unidata-operated toplevel IDD relay, idd.unidata.ucar.edu. The challenge in making the data routinely available is its large data volume which is on the order of ~8GB for the pressure level output and ~10 GB/hour for the sigma level output. We have a test ingest of this data and soon the FIM output going to our LDM on gale.unidata.ucar.edu
- The UPC continues to relay FNMOC and the CMC data model output directly to the community. FNMOC provides the COAMPS and NAVGEM model output and the CMC provides the GEM model output. Unidata has provided access to these data for the past 8 years, but on a "point-to-point" basis. GEM model output was converted from GRIB1 to GRIB2 in January. The CMC is now relaying output of there new hi-resolution (15km) GEM model to Unidata. The 60 km output is going away permanently once the CMC is confident with the 15 km output.
NOAAPort Data Ingest
- NOAAPort ingest has been functioning near-flawlessly since the NWS transitioned the SBN from DVB-S to DVB-S2 in April/May 2011. The switchover was smooth enough that end-users should have never noticed the change.
- The NOAAPort ingest package has been bundled with the LDM as of LDM version 6.10. The current LDM releases is 6.11.4.
- Raytheon bundles a modified version LDM-6 with AWIPS-II and is actively managing NOAAPort ingest at a variety of NOAA offices using the Unidata NOAAPort ingest package. Raytheon's LDM modifications are evaluated by the UPC LDM developer and incorporated into Unidata releases when possible
Relevant IDD Metrics
- Approximately 520 machines at 230 sites are running LDM-6 and
reporting real time statistics to Unidata. Unidata staff routinely assist in the
installation of LDM-6 at user sites as a community service.
A number organizations/projects use the LDM to move substantial amounts of data that do not report statistics to Unidata: NOAA, NASA, USGS, USACE, Governments of Spain, South Korea, private compaines, etc.). - IDD toplevel relay node, idd.unidata.ucar.edu
The cluster approach to toplevel IDD relay, has been operational at the UPC since early summer 2005.The cluster, described in the June 2005 CommunitE-letter article Unidata's IDD Cluster, routinely relays data to more than 680 downstream connections. Data input to the cluster nodes now routinely averages over 12 GB/hr (~0.3 TB/day); average data output from the entire cluster is approx. 1.1 Gbps (~13 TB/day); peak rates routinely exceed 2.2 Gbps (which would be ~24 TB/day if the rate was sustained).
The following shows a snapshot by feedtype of the data being received one node of the Unidata toplevel IDD relay, idd.unidata.ucar.edu.Data Volume Summary for uni18.unidata.ucar.edu Maximum hourly volume 19828.723 M bytes/hour Average hourly volume 11667.719 M bytes/hour Average products per hour 281928 prods/hour Feed Average Maximum Products (M byte/hour) (M byte/hour) number/hour CONDUIT 3328.114 [ 28.524%] 5269.075 73736.773 NEXRAD2 3077.665 [ 26.378%] 3714.055 48861.636 NEXRAD3 1256.441 [ 10.769%] 1478.044 76113.500 NGRID 1118.158 [ 9.583%] 2086.498 20125.886 FNMOC 1082.579 [ 9.278%] 6351.885 3116.750 FSL2 1057.268 [ 9.061%] 2539.983 1254.886 HDS 329.436 [ 2.823%] 507.528 18251.182 NIMAGE 148.282 [ 1.271%] 253.169 189.318 GEM 76.773 [ 0.658%] 466.329 977.568 FNEXRAD 73.161 [ 0.627%] 91.272 71.818 IDS|DDPLUS 48.819 [ 0.418%] 61.076 38494.500 EXP 38.953 [ 0.334%] 66.279 351.341 UNIWISC 25.664 [ 0.220%] 33.948 29.568 DIFAX 3.593 [ 0.031%] 12.966 4.977 LIGHTNING 2.687 [ 0.023%] 6.380 347.636 GPS 0.126 [ 0.001%] 0.992 1.068Currently six real server nodes operating in one location on the UCAR campus (in the UCAR co-location facility in FL-2) and two directors comprise idd.unidata.ucar.edu. The cluster approach to IDD relay has been adopted by NOAA/GSD, Penn State and Texas A&M.