historical data access
DESCRIPTION
Historical Data Access. Basic Calibration Workshop March 10-13, 2009 LMRFC. Historical Data Analysis. MAPX 1. ‘Poor man’s” reanalysis. Sources of Data for Calibration. National Climatic Data Center (NCDC) Hourly precipitation (thru Feb, 2008 for legacy programs, 2005 for Browser) - PowerPoint PPT PresentationTRANSCRIPT
NWS Calibration Workshop, LMRFC March, 2009 1
Historical Data Access
Basic Calibration Workshop
March 10-13, 2009
LMRFC
NWS Calibration Workshop, LMRFC March, 2009 2
Historical Data AnalysisGeneral Information Needed
Analysis of PrecipitationInformation needed
Non Mountainous Mountains
PXPP
1 check consistency2 compute monthy means
MAP
1 recheck consistency2 generate time series of MAP
MAT
TAPLOT
MAT
MAPE
1. Station data2. Station history info: obs times, changes, location, moves3. Topographic data
1 isohyetal map2 station weights-basin boundary
Mountains
- check consistency
- get mean max/min for mean zone elev.
- generate time series of MAT.
- area vs elev. curve-basin boundary
1 evaporation maps2 station weights3 mean monthly evap.
1 check consistency2 generate daily time series of MAPE
- evap. vs elev. curve
Non Mountainous Non Mountainous Mountains
-compute 12monthy ETdemand values
Analysis of TemperatureInformation needed
Analysis of EvaporationInformation needed
MAPX1. ‘Poor man’s” reanalysis
NWS Calibration Workshop, LMRFC March, 2009 3
Sources of Data for Calibration• National Climatic Data Center (NCDC)
– Hourly precipitation (thru Feb, 2008 for legacy programs, 2005 for Browser)– Daily precipitation (through May, 2008 for legacy programs, 2005 for Browser)– Max, min temperature– Snow on Ground – Synoptic Data– Evaporation data.
• U.S. Geological Survey (USGS)– Mean daily flow– Peak flow– Lake elevation– Pool elevation– Storage– Measurements (note: recently removed due to concerns)
– Hourly Discharge (provisional) http://ida.water.usgs.gov/ida/
NWS Calibration Workshop, LMRFC March, 2009 4
Sources of Data for Calibration, cont’d
• RFC Archives from NOAA Hydrologic Data System– NEXRAD– OFS Processed Data Base (PRD)– Point data and other Postgres data
• RFC Archived Data Base• Natural Resources Conservation Service
(NRCS)– Snotel data
• IFLOWS (higher elevation data)
NWS Calibration Workshop, LMRFC March, 2009 5
Accessing Data for Calibration
• Legacy programs on NHDS web site– Station Inventory– Daily Transfer– Hourly Transfer– Syntran (evaporation data)
• Historical Data Browser (HDB)– GUI replacement of legacy programs
NWS Calibration Workshop, LMRFC March, 2009 6
Meta Data(station inventory,history, on flat file,
2008)
OHD RFC
Data on NOAA1 Server (2008)
Meta Data(station inventory, history)
on Postgres ‘OB9_Histdata’, to1999, soon to be updated
Web AccessLegacy programs(stand alone)
Historical Data Browser(AWIPS)
FTP
Historical Data Access for CalibrationData Flow: Current System
NWS Calibration Workshop, LMRFC March, 2009 7
Accessing Data for Calibration
• In future we hope to have:– Updated Calibration System within CHPS
• Incorporate – CAP– ICP– OPT3– HDB– GIS
– Access to NCDC and USGS directly
NWS Calibration Workshop, LMRFC March, 2009 8
Station History Information
• No source is complete
• New on-line resource: scanned versions of all NCDC B-44 forms reporting station information– Contact [email protected] at NCDC– www.noaa.imcwv.com
• metadata– cooperative station history forms– Document Coop Station Id Number ‘094648’
NWS Calibration Workshop, LMRFC March, 2009 9
NWS Calibration Workshop, LMRFC March, 2009 10
NWS Calibration Workshop, LMRFC March, 2009 11
RFC Data
• A recent request for old NWSRFS data triggered an effort to retrieve all archived NWSRFS data for the period from 1996-Sept 2005. The data has been extracted from tape and placed on an OHD server. An inventory of NWSRFS files was then created on a RFC-by-RFC basis and can be found at: http://amazon.nws.noaa.gov/hdsb/data/nwsrfs/nwsrfs.html.
• If you would like to request any old NWSRFS data, please email your request to [email protected].