coopdaily announcement 042011
TRANSCRIPT
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April20,2011IMMEDIATEChangestoCOOP/DailyFormAccess
NCDCisimplementingmajorchangesthathaveadirectimpactontheCOOP/Dailyformgeneratedproduct.TheDS3200dataset,whichprovidesthedatausedtopopulatetheCOOPform,isbeingdiscontinuedbeginningwiththeJanuary2011datamonthandisbeingreplacedwiththeGlobalHistoricalClimatologyNetworkDaily(GHCND)data.ImmediateImpact:
1. TheexistingCOOP/Dailysystemwillremainonline.However,therewillbelimitedformsavailableafterDecember2010datamonth(onlyASOSstationswillbeuploaded,noCOOPstations).ToaccessCOOPdataformsfromJanuary2011forward,pleasevisittheImage&PublicationsystemFREECOOPformsathttp://www7.ncdc.noaa.gov/IPS/coop/coop.html.
2. OnlinepurchasesofindividualstationdatapriortoJanuary2011datamonthandtheabilitytoorderonlineforcertificationremainavailable.
3. RequestsforcertifiedCOOPdatabeginningwiththeJanuary2011datamonthMUSTbemadeofflinebycontactingCustomerService.PleasevisitOrderingNCDCData&Productsathttp://www.ncdc.noaa.gov/oa/about/ncdcordering.htmlforphone,fax&emailinformation.
4. Currentsubscriptionuseraccesswillremainavailable;nonewsubscriptionsorrenewalsmaybepurchased.IfaneworrenewedsubscriptionwaspurchasedafterJanuary1,2011arefundwillbeprocessedandemailnotificationsent.
FutureAvailability:1. Withinthenextcoupleofmonths,theGHCNDdatawillbecomeapartoftherevisedClimate
DataOnline(CDO)system.2. OncetherevisedCDOsystemisonline,theGHCNDdatawillbeavailableinbothASCIIformat
andageneratedform(muchliketheonlinedigitalCOOPformlooksnow).3. AccesstotheGHCNDdatainthenewCDOsystemwillbeavailabletoallusersatNOCHARGE.4. Theabilitytoorderonlineforcertifiedcopieswillbeavailablefortheformgeneratedproduct
producedfromtheGHCNDdataset.Thesechangesarebeingmadeinacontinuingefforttoconsolidateourdatasetsandproductline,andimproveuserservices.Pleaseemailquestions/[email protected].(SeethefollowingpageforadescriptionoftheGlobalHistoricalClimatologyNetworkDailydatabase)
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AbouttheGlobalHistoricalClimatologyNetworkDaily(GHCND)dataset:GHCNDisadatabasethataddressesthecriticalneedforhistoricaldailytemperature,precipitation,andsnowrecordsovergloballandareas.Likeitsmonthlycounterpart,GHCNDisacompositeofclimaterecordsfromnumeroussourcesthatweremergedandthensubjectedtoasuiteofqualityassurancereviews.Thearchiveincludesthefollowingmeteorologicalelements:
Dailymaximumtemperature Dailyminimumtemperature Temperatureatthetimeofobservation Precipitation(i.e.,rainfallandsnowwaterequivalent) Snowfall Snowdepth Otherelementsarereportedbyselectedstations
TheformatoftheGHCNDdataisdifferentfromthe3200datasetandmaynecessitatesomechangesforuserswhoaredownloadingdataelectronically.TheformatdocumentationandlistofcountrycodescanbefoundintheGHCNDReadMefileontheftpserver(http://www1.ncdc.noaa.gov/pub/data/ghcn/daily/readme.txt).Thedatafilesarelocatedonourftpserveratftp://ftp.ncdc.noaa.gov/pub/data/ghcn/daily/.TheformatoftheGHCNDfileisarrangedsimilartothe3200formatwitheachrowcontainingthestationidentifier,theyearandmonth,theobservationtype,followedby31daysofobservationsandflags.ThereisNOTimeofObservation(TOBS)containedinthisfile.TheGHCNDdataarecurrentlyavailabletoALLusersatnocharge.(Note:thecurrentfilesareentireperiodofrecordforeachstation,updateddaily,andareextremelylargefiles).Wewillbecreatingdirectoriesontheftpserver,withinthe/ghcn/directory,thatwillcontainsubsetsoftheGHCNDdatainayearlyfilethatwillbeupdateddaily.Theyearlyfilewillbeformattedsothateveryobservationisonanewrow:stationidentifier,date,observationtype,observation,andtimeofobservation.Thesefilesshouldbeavailableinthenearfuture.Separatedocumentationforthisfileformatdoesno'texist;however,thedefinitionsofelement,flags,andotheritems,willbethesamewiththeexceptionoftimeofobservation.Alluserswillhaveaccesstodirectoriesforftp/ghcn/andftp3/3200&3210/dataatnocharge.FordetailedinformationonthisnewdatasetvisittheGHCNDailywebpageathttp://www.ncdc.noaa.gov/oa/climate/ghcndaily/