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September 17-19, 2008

NOAA’s National Climatic Data Center. John Bates Chief Remote Sensing Applications Division NAEDEX-21. September 17-19, 2008. 1. National Climatic Data Center (NCDC) Asheville, North Carolina. NCDC is the steward of the Nation’s in-situ and satellite data and information.

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September 17-19, 2008

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  1. NOAA’s National ClimaticData Center John Bates Chief Remote Sensing Applications Division NAEDEX-21 September 17-19, 2008 1

  2. National Climatic Data Center (NCDC) Asheville, North Carolina • NCDC is the steward of the Nation’s in-situ and satellite data and information. • Collocated with the U.S. Air Force and Navy Climatology offices. • The three agencies fulfill much of the Nation’s climate data & information • requirements.

  3. Mission Statement To provide access and stewardship to the Nation’s resource of global climate and weather related data and information, and assess and monitor climate variation and change.

  4. Archive, Access, and AssessmentHighlights: 2008 Safe Storage of more than 3,000 terabytes of climate data • 150 terabytes of data added to the archive in 2008. • Over 300 terabytes of data delivered online in 2008, with over 450 million unique web hits. • Production/distribution of 5 monthly serial climate publications to more than 100K users. Critical Scientific Assessments • Climate Change Science Program (CCSP) Assessments • Weekly/Monthly/Annual “State of the Climate” Reports

  5. Mandated Functions of NCDC’s Mission Acquire and Ingest data Archive and scientific stewardship of the Nation’s meteorological data - national & international Provide access to data, metadata, and products Monitor & describe the national & global climate

  6. Data Received From Many Sources Forecast Warning Analysis NWS Coop Observers Global Synoptic Reports NCEP Charts Ship, Buoy Reports Rocketsonde Radiosonde Storm Data Doppler Radar (GOES, POES, NPOESS, many other) Satellites Aircraft Profiler ASOS USCRN

  7. Data Received on Many Types of Media • Digitally (Now majority of data ingested) • NWS Cooperative Observer Data & Hourly Precipitation Data • Original manuscripts, Punched paper tapes • Small amount of data • Analyzed charts • Original manuscripts • Autographic charts & rolls

  8. Mandated Functions of NCDC’s Mission Acquire & Ingest data Archive and scientific stewardship of the Nation’s meteorological data – national and international Provide access to data, metadata, and products Monitor & describe the national & global climate

  9. Basic Archive Considerations #1 Data required by law to be archived Public Law 81-754 (1951): NCDC established as an Agency Records Center for US weather & climate records with responsibilities of archiving & servicing NOAA Policy (2008):Government-wide policy for ‘What to Archive’ • #2 Long-term economic, societal, and scientific value • Recommendations from: • National Research Council committee reports • Data Archive & Access Requirements Working Group (SAB)

  10. The National Environmental Data Archive NESDIS OSD NCDC and NOAA Data Centers Development Content, Operations, User Focus & Access Comprehensive Large Array-data Stewardship System

  11. Non-Digital Data Archive Percent digitized (Keyed or imaged) 50% (50 million) 1.7% (2,105 reels) 1.0% (8,600 fiche) Manuscript / Autograph* 100 Million Pages stored in 125K boxes * Located at Asheville; additional paper records located at the Federal Records Center in Georgia that will be inventoried and prioritized for digitization 35mm & 16mm Film 125,129 Rolls Microfiche 860K fiche containing 51 million pages

  12. Climate Database Modernization Program: 2000-2008 Over 9 terabytes of Climate data now only a mouse click away • 52 million weather & environmental images online • Hundreds of million of records digitized & now online • International data access and rescue activities 1842 Hourly Weather Data from Washington, DC Imaged and Digitized through the CDMP Program Imaged Records Example: Glacial Pairs – Muir Glacier, Alaska 2004 1941

  13. Mandated Functions of NCDC’s Mission Acquire & Ingest data Archive and scientific stewardship of the Nation’s meteorological data - national & international Provide accessto data, metadata,and products Monitor & describe the national & global climate

  14. Climate Data Access via the Web Climate data access by user type

  15. Climate Data Access NCDC Business Practices Offline Access (telephone, letters, etc.) Continues to exhibit a sharp decline Online (Web) Access Continues to exhibit a rapid increase

  16. Mandated Functions of NCDC’s Mission Acquire & Ingest data Archive and scientific stewardship of theNation’s meteorological data - national & international Provide access to data, metadata, and products Monitor and describe the national and global climate

  17. An early warning & forecast system for drought. Drought impact and causation education. Information for drought mitigation. An interactive, web-based drought portal. Improved observational capabilities. Monitoring Drought (drought.gov) National Integrated Drought Information System (NIDIS) An integrated, interagency national drought monitoring and forecasting system that provides:

  18. Monitor and Describe the Climate 2007 Anomalies over Land and Sea NOAA/NCDC Climate Monitoring Web Access (Examples Highlight the Global Products Page) 7

  19. Develop High-Quality Datasets U.S. Historical Climatology Network (Version 2 – 1,219 Stations) Homogeneity-Adjusted Data Inhomogeneity Types STEP TREND RAW ADJUSTED STEP AND/OR TREND CHANGE • Automated homogenization algorithm • Addresses undocumented / documented changepoints • Identifies trend and step inhomogeneities • No base period / data completeness requirements STEP CHANGE WITHIN TREND

  20. Tropical Cyclone Intensity Reanalysis NCDC Data Base Build • Reanalysis effort to develop a homogeneous 23-year satellite record • Tropical cyclone intensity historically estimated from “best track” data • many inherent temporal heterogeneities • New data set - from > 20 satellites;14 formats • Removed intra-series & temporal biases • 1983-2005 data: ~169K images; ~2000 storms • Annual update after “Best Track” data released • working to fill in 1981-1983 Example images from New Data set PDI=Power Dissipation Index Combined measure of Frequency & Intensity Univ. of Wis. Analysis Partnership • Objective algorithm develop to work with new data set • Principal components of azimuthally averaged Tb used to estimate intensity • Similar to objective Dvorak technique; valid in all ocean basins • Observed Results • PDI increasing in North Atlantic • No significant global trends • “UWis / NCDC” intensities have little temporal bias

  21. Director’s Office IDEA Center NCDC – Organization

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