Antarctic-IDD System
Antarctic-IDD SystemTalk and Group DiscussionMatthew A. Lazzara1, Gabe Langbauer2, Kevin Manning3, RobertRedinger4, Mark Seefeldt5, Robert Vehorn6, and Tom Yoksas71AntarcticMeteorological Research Center (AMRC), SpaceScience and Engineering Center (SSEC), University ofWisconsin-Madison, Madison, WI2ByrdPolar Research Center (BPRC), The Ohio StateUniversity (OSU), Columbus, OH3Mesoscale& Microscale Meteorology (MMM), NationalCenter for Atmospheric Research (NCAR, Boulder, CO4ColumbiaScientific Balloon Facility (CSBF), NASA,Palestine, TX5University6SPAWARof Colorado (UC), Boulder, COOffice of Polar Programs (Code 66B)SPAWAR System Center, Charleston, SC7Unidata Program Center, University Corporation forAtmospheric Research Boulder, CO
The Antarctic-IDD
Background Initial discussion of Unidata helping the US AntarcticProgram (several years back - circa 2000)– Cliff Jacobs/NSF & Unidata & SPAWAR (& AMRC) Antarctic meteorology meeting synergy discussion 2004:– Al Sutherland/NSF Start of the “antdiscussion” e-mail list, 2004:– Matthew Lazzara/AMRC “Data sharing” topic chosen:– Using Unidata Local Data Manager (LDM) software– Hence birth of the Antarctic-Internet Data Distribution(Antarctic-IDD) system
Why do this? Improved exchange and availability of Antarcticmeteorological data– Internal community need and interest– Wider audience reaching the external community Establish a better data exchange network Redundancy and Reliability System with potential for:– Throttling data selection– Coupling with future advanced data compressionmethods “The price is right”, and will have long termsupport
What isLDM? Get data from one or more upstream data sourcesRelay data to one or more downstream data sinksStore selected data products in local filesPass data through local decoder programsFreely available software– Used by the Unidata community Internet Data Distribution (IDD)– Used in private sector, government & internationally
What data are we sharing? AMRC– Satellite Composites Infrared, Water Vapor, Experimental Visible, and Pseudo-color– Automatic Weather Station (AWS) Observations Received at Palmer, McMurdo, Gilmore Creek (AK), & WallopsIsland (VA) ground stations– Miscellaneous Observations Aircraft, METAR, Synoptic, Radiosonde, Ship/Buoy, etc. NCAR– Antarctic Mesoscale Prediction System (AMPS) Hemispheric, Antarctic continental, South Pole, Ross Island, andMcMurdo grid domains SPAWAR– AWS and McMurdo Area Wind Sensor networks– Terminal Aerodrome Forecasts AWI (Alfred Wegener Institute - Germany)– Via FTP to AMRC for insertion into the Antarctic-IDD Radiosonde and Synoptic data from Neumayer Station
File Naming Convention Using the experimental (EXP) data feed in LDM– Issue with need to share feed with other data flows Hence file names are prefixed as:USAP.Center.Data.Day.Time.etc.etc.– USAP Antarctic-IDD product prefix– Center Originating group or source e.g. AMRC, NCAR, SSCC, etc.– Data Type of Data e.g. AWS, Composite, GRIB, etc.– Day, time, model level, forecast hour, spectral band, etc. Test model for the Unidata community Least specific to most specific
Antarctic-IDDStatus of 7 June :CUCSBF/LDBPhase I - In progressSPAWARCharlestonPhase II – Field Season 2005-2006Phase III - Field Season 2006-2007Key:Two-way, full data stream (Possible)CSBF/LDBAt WilliamsFieldMcMurdoStationSPAWAR& AMRCOne-way, full data stream &Firewall limited data insert returnLimited two-way data streamFTP Insert to Antarctic-IDDTested transmission
Antarctic-IDDWhere we need to DBSPAWARCharlestonKey:Two-way, full data stream (Possible)NSBF/LDBAt WilliamsFieldMcMurdoStationSPAWAR& AMRCOne-way, full data stream &Firewall limited data insert returnLimited two-way data streamFuture, Planned or Unknown
Reducing duplication of moveddata out of McMurdo Mixed Data Formats– Satellite Data, primarily McIDASGeoTIFFTDFCosts Bandwidth & Compression– Making use of the exiting T1 USESInternet in/out of McMurdo ( 1.544Mbs)– Test out compression methods Unix CompressGZIPAREA2PNGWavelet ?Others ?Issues
Future Plans Continue implementation– Especially to/from McMurdo AMRC to convert some items from ADDE to Antarctic-IDD/LDM Share/complement SPAWAR’s efforts Add users/relay sites– Domestic– International Strengthen the network topology!– Add secondary feed site links Add data––––Polar winds .Possible future special products from Colorado/Ohio?Polar LAPS?Others?
Acknowledgements National Science Foundation– Atmospheric Sciences (ATM)– Office Of Polar Programs (OPP) & US AntarcticProgram (USAP)– Grant #OPP-0126262– Grant #OPP-0229645 German Antarctic Program– Ralf Brauner, Gert Koenig-Langlo, and MathiasZoellnerContact Matthew Lazzara if you wish to join the Antarctic-IDD:mattl@ssec.wisc.edu
“Scientific endeavor in Antarctica distinguishesitself from similar activities in other parts of theworld by the auspicious development of friendly andfruitful international cooperation on a broad base international understanding again and again hasbeen an important stimulus as well as a fortunateby-product of scientific work of Antarctica.May it continue to be so.”W. Schwerdtfeger, 1970World Survey of Climatology
– Network Topology Robustness & Testing– Satellite Transmission Format Discussion JPEG and/or TDF or “raw”? Can we do both?– Adding products to the stream Polar Winds AMPS - Polar MM5 & Polar WRF?Anything from Colorado/Ohio?Anything else? Polar LAPS?Topics for– Compression (bzip2, GRIB2, etc.)– File naming convention (AMPS/GRIB) Discussion– Adding to the network: RPSC, Palmer Station, LDB at Willie, Anyone else?– Archive of the data stream?– Coordination in McMurdo between SPAWAR & AMRC Feeding LDB at Willie Field– Monitoring software (big brother/nagios)?
Matthew A. Lazzara1, Gabe Langbauer2, Kevin Manning3, Robert Redinger4, Mark Seefeldt5, Robert Vehorn6, and Tom Yoksas7 Antarctic-IDD System Talk and Group Discussion 1Antarctic Meteorological Research Center (AMRC), Space Science and Engineering Ce
CU AMRC/Wisconsin BRPC/OSU SPAWAR Charleston Antarctic-IDD Two-way, full data stream (Possible) One-way, full data stream & Firewall limited data insert return Limited two-way data stream FTP Insert to Antarctic-IDD Tested transmission Key: Phases: Phase I - In use Phase II –
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