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NOAA’s National Climatic Data Center. Thomas Karl Climate Working Group Climate Observations & Analysis Program Review. April 11-13, 2007. 1. National Climatic Data Center (NCDC) Asheville, North Carolina. NCDC is the steward of the Nation’s in-situ

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NOAA’s National ClimaticData Center

Thomas Karl

Climate Working Group

Climate Observations & Analysis Program Review

April 11-13, 2007

1


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.


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.


Archive access and assessment highlights 2006
Archive, Access, and AssessmentHighlights: 2006

Safe Storage of more than 2,100 terabytes of climate data

  • 120 terabytes of data added to the archive in 2006

  • 25 terabytes of data delivered monthly to customers via web and ~ 4 million unique user hosts in 2006

  • 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

  • International Panel on Climate Change report


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


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


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


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


Two 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

  • #2 Long-term economic, societal, and scientific value

  • Recommendations from:

    • National Research Council committee reports

    • Data Archive & Access Requirements Working Group (SAB)



Non-Digital Data Archive (Data Variety and Growth)

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


Climate Database Modernization Program: (Data Variety and Growth)2000-2006

Over 7 terabytes of Climate data now only a mouse click away

  • Fifty 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

North Carolina Cooperative

Observer Images -Online

Missing images 1950-1980 will be available later in 2007

African Records

Rescue Project


Mandated Functions of NCDC’s Mission (Data Variety and Growth)

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


Climate Data Access via the Web (Data Variety and Growth)

NEXRAD= Radar CLASS =Currently Satellite NOMADS= Models CDO = Climate In-Situ

Climate data access by user type


Climate Data Access (Data Variety and Growth)

NCDC: On the Forefront of E-Business

Offline Access (telephone, letters, etc.)

Continues to exhibit

a sharp decline

Online (Web) Access

Continues to exhibit a

rapid increase


Mandated Functions of NCDC’s Mission (Data Variety and Growth)

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


Examples of Climate Assessments (Data Variety and Growth)


Monitor and Describe the Climate (Data Variety and Growth)

Climate Monitoring Web Access

(Examples Highlight the Global Products Page)


Tropical Cyclone Intensity Reanalysis (Data Variety and Growth)

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


Tours individual visits 2 45 3 45pm
Tours / Individual Visits 2:45-3:45PM (Data Variety and Growth)

NCDC – Asheville Floor Layout

SSD(IT & Finance)

ScSD

RSAD

(Analysis/ Monitoring)

Air Force

&

Navy

CSD

(Access)

5

DOD

(Ingest)

4

DO

DOD(Archive)

IT Communications

& Hardware

(Tour only)

NCDC Service Contractor

Air Force

Cafeteria

3

2

Non-digital Archives

(Tour only)

Non-digital Archives

(Tour only)

CDMP

(Data Rescue / Access)

1

B

Museum

CSD = Climate Services Division RSAD = Remote Sensing & Applications Div

CDMP = Climate Data Modernization Project SSD= Support Services Division

DO = Director’s Office ScSD = Scientific Services Div.

DOD = Data Operations Division


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