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Climate Data Tools: xmACIS, NOWData and ThreadEx. Keith Eggleston Regional Climatologist Northeast RCC. Applied Climate Information System (ACIS). xmACIS. CLIMOD. ThreadEx. ACIS Maps. NOWData. AgACIS. ACIS Database. ACIS Database. NCDC archive. ACIS Database. NCDC archive.

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keith eggleston regional climatologist northeast rcc
Climate Data Tools:

xmACIS, NOWData and ThreadEx

Keith Eggleston

Regional Climatologist

Northeast RCC

applied climate information system acis
Applied Climate Information System (ACIS)

xmACIS

CLIMOD

ThreadEx

ACIS Maps

NOWData

AgACIS

ACISDatabase

acis database
ACIS Database

NCDC archive

acis database1
ACIS Database

NCDC archive

acis database2
ACIS Database

NCDC archive –

Data from Climate Database Modernization Program

acis database3
ACIS Database

Daily Summary Messages for ASOS stations added as received, beginning around 4am ET

acis database4
ACIS Database

Daily CLI Messages from NWS added as received, beginning 4am ET

acis database5
ACIS Database

Preliminary COOP station data from NWS added as received throughout the day

acis database6
ACIS Database

Some data is keyed and QC’ed at the Regional Climate Centers – about 2-3 weeks after the end of the data month

acis database7
ACIS Database

Unique data contributed by NWS offices allows extension of record back in time

acis database8
ACIS Database

NCDC datasets updated as data are released – preliminary keyed, preliminary quality control, final quality control

acis database9
ACIS Database

Other Networks:

High Plains automated network

acis database10
ACIS Database

Other Networks:

USDA SNOTEL and SCAN networks

acis database11
ACIS Database

Flexible architecture allows for future expansion

buffalo acis data
Buffalo ACIS Data

Jan 1871 - Dec 1921 CRB

Jan 1922 - Dec 1945 DSI-3200 (COOP id 301012)

Jan 1946 - Apr 2007 DSI-3210 (WBAN id 14733)

May - June 2007 Extracted from CLI

DSI-3210 updated monthly as received from NCDC.

CLI statements added to database every morning.

Datzilla updates added as processed.

ithaca acis data
Ithaca ACIS Data

Jan 1893 - Dec 1925 DSI-3206 (COOP id 304174)

Jan 1926 - Jan 2007 DSI-3200 (COOP id 304174)

Feb 2007 DSI-3202 NCDC Prelim

Mar - Apr 2007 NRCC Keyed

May - June 2007 Extracted from RR3

DSI-320x updated 3/month as received from NCDC.

SHEF-encoded data added to database every morning.

Datzilla updates added as processed.

nowdata
NOWData
  • Public interface to ACIS database.
  • Available on all NWS climate web pages.
  • Subset of data and products available on xmACIS interface.
  • Station lists can be modified upon request through the Regional CSPMs.
nowdata2
NOWData
  • Station list
  • All real-time stations with normals
  • Other stations as requested by NWS offices
threadex the issue
ThreadEx - The Issue
  • What climatological records should be used as the basis for U.S. daily climate extremes that are reported by the media, NWS, and others?
  • Current extreme records reporting are inconsistent, based on varying combinations of multiple observing sites.
example chicago
Example - Chicago

1872-1970

Chicago Weather Bureau City Office

1916-95

University of Chicago

1928-Present

Chicago Midway Airport

1958-Present

Chicago O’Hare Airport

1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000

threading process
Threading Process
  • Target Stations: Published LCD sites (~260)
  • Starting Point: Current ASOS Site
  • Consideration of Historical Precedent

1) NWS / WB

2) COOP

  • Overlaps: Yield to the More Recent Site
  • No Adjustments for Inhomogeneities!
  • Station Threads Vetted by Partners:
    • Northeast Regional Climate Center (Developer)
    • NWS Field, State Climatologists (Reviewers)
back to chicago example
Back to Chicago Example

Threaded Record

Unused Portion of Record

Unused Portion of Record

1871-95

1. Chicago CRB

1896-1925

2. Chicago WB Office

1926-41

3. University of Chicago

1942-58

4. Chicago Midway Airport

1958-Present

1958-Present

5. Chicago O’Hare Airport

1870 1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000

threadex extremes
ThreadEx Extremes
  • Station tables are available on the web
    • Will be updated at least annually
    • http://threadex.rcc-acis.org
  • Daily top three records and years for:
    • Highest Maximum Temperature
    • Lowest Maximum Temperature
    • Highest Minimum Temperature
    • Lowest Minimum Temperature
    • Greatest Precipitation
threadex benefits
ThreadEx Benefits
  • ThreadEx will provide…
    • Maximized
    • Consistent
    • Routinely updated
    • Freely available

… daily climate records for principal observing stations

in the United States.

  • ThreadEx is for general public use, NOT for research (no homogeneity adjustments).
additions to acis database
Additions to ACIS Database
  • NOAA’s Climate Database Modernization Program (CDMP) has keyed a large amount of pre-1948 data – data that has not been consistently used before.
  • NRCC, in cooperation with the National Weather Service, has obtained a significant amount of historical data digitized by local NWS offices that was not part of the NCDC archives.
  • NRCC is performing quality control of historical data from the CDMP Climate Record Books project. This will add as much as 75 years to the beginning of station records.
san francisco thread
San Francisco Thread

SAN FRANCISCO INTL AP (DSI-3210) 07/1945 to 12/2005

SAN FRANCISCO CITY (DSI-3210) 01/1921 to 06/1945

SAN FRANCISCO CITY (CRB) 01/1871 to 12/1920

SAN FRANCISCO CITY (supplied by NWS) 10/1849 to 12/1870

nws contributed data
NWS-Contributed Data
  • Daily data - max and min temperature, precipitation, snowfall and snow depth
  • Variety of formats
    • XMClimate netCDF
    • Excel spreadsheet
    • Text file
  • Data has been contributed for 70 stations to date
  • Contact Keith Eggleston ([email protected])
slide31
ATL 090456: 10/1878-08/1928 090451: 09/1928-12/2005
  • ATT 410420: 09/1891-08/1942 410428: 09/1942-11/2005
  • BDL 063451: 10/1904-12/1948
  • BHM 010836: 04/1895-11/1945 010831: 12/1945-12/2005
  • BIL 240807: 08/1934-11/2005
  • BIS 320819: 10/1874-09/2005
  • BOS 190775: 01/1872-12/1919
  • BRO 413259: 01/1878-10/1916 …411136: 04/1942-11/2005
  • BTV 431081: 01/1893-05/2005
  • BWI 180470: 01/1871-07/1950 180465: 07/1950-11/2005
  • CNK 141769: 05/1885-04/1962 141767: 05/1962-01/2005
  • CRP 412010: 02/1887-10/1942 412015: 10/1942-12/2005
  • DCA 189290: 01/1871-06/1929 448906: 07/1929-11/2005
  • DRT 412357: 01/1906-04/1951 …412360: 03/1963-11/2005
  • DSM 132208: 08/1878-11/2005
  • DTW 202118: 12/1894-12/1933 …202103: 04/1966-12/2005
  • EKA 042910: 12/1886-04/2003
  • ELP 412799: 01/1879-11/1942 412797: 12/1942-12/2004
  • FAI 509641: 09/1904-11/1929 502968: 12/1929-12/2002
  • FLG 023007: 09/1898-12/1949 023010: 01/1950-11/2005
  • FSD 397667: 01/1893-01/2006
  • FSM 032580: 06/1882-12/1900
  • GEG 457938: 02/1881-11/2005
  • GJT 053485: 01/1893-04/1946 053488: 05/1946-01/2006
  • GRI 253395: 10/1895-12/1899
  • GRR 203337: 04/1892-12/1940 …203333: 12/1963-12/2005
  • GTF 243749: 12/1891-03/1937 243751: 04/1937-11/2005
  • HLN 244057: 04/1880-04/1940 244055: 05/1940-11/2005
  • HON 394135: 07/1881-02/1939 394127: 02/1939-01/2006
  • HSV 014976: 02/1894-12/1936 …014064: 09/1958-11/2005
  • HVR 243994: 01/1880-01/1961 243996: 02/1961-11/2005
  • IND 124264: 02/1871-12/1942 124259: 01/1943-11/2004
  • IPT 369733: 02/1895-12/1944 369728: 01/1945-12/2004
  • LAN 202394: 04/1863-04/1948 …204641: 05/1959-10/2005
slide32
LBF 256070: 09/1874-12/1947 256065: 01/1948-12/2005
  • LIT 034248: 07/1879-12/1897
  • LMK 154958: 11/1995-12/2005
  • LOT 117457: 01/1992-08/1997
  • LSE 474375: 10/1872-12/1950 474370: 01/1951-08/2004
  • LWS 105230: 09/1881-12/1947 105241: 08/1948-11/2005
  • LYH 445121: 01/1893-01/1930 445120: 02/1930-01/2005
  • MCI 234370: 07/1888-12/1893
  • MDT 363711: 01/1889-05/1939 …365703: 10/1991-12/2004
  • MEM 405964: 01/1872-12/1939 405954: 01/1940-12/2005
  • MGM 015555: 09/1892-06/1948 015550: 07/1948-12/2005
  • MIA 085668: 12/1900-01/1939 085663: 02/1939-12/1945
  • MSP 217386: 01/1871-06/1933
  • OMA 256220: 01/1871-05/1935 …256255: 01/1994-11/2005
  • ORD 111582: 01/1871-12/1896
  • ORF 446144: 01/1874-12/1945 446139: 01/1946-04/1951
  • ORH 199928: 01/1904-12/1947
  • PBI 084471: 01/1888-12/1899 …089520: 01/1930-12/1945
  • PHL 366909: 01/1872-6/1940 366889: 06/1940-01/1999
  • PHX 026486: 08/1895-09/1963 026481: 10/1963-11/2005
  • PVD 376703: 11/1904-05/1932 376698: 06/1932-12/1947
  • RAP 396937: 08/1942-12/1948
  • RIC 447206: 01/1887-12/1929 447201: 01/1930-04/1951
  • RST 217004: 07/1886-02/1893
  • SAT 417950: 03/1885-12/1940 …417945: 07/1942-11/2005
  • SDF 154956: 08/1872-06/1945 154954: 07/1945-12/2005
  • SFO 047772: 10/1849-01/1871
  • SPI 118184: 07/1879-12/1879
  • SUX 137712: 07/1889-04/1941 137708: 05/1941-01/2006
  • TOP 148172: 06/1887-07/1946 148167: 08/1946-01/2005
  • TUL 348987: 08/1893-12/1930 348992: 01/1931-12/1992
  • TUP 229000: 01/1930-04/1969 229003: 05/1969-12/2005
  • TUS 028815: 10/1894-12/1929 028820: 01/1930-11/2005
  • UNR 396947: 01/1888-04/1972 396948: 01/1996-11/2005
  • YUM 029662: 01/1893-07/1949 …029646: 12/1995-11/2005
slide33
Climate Record Books
  • Daily data
    • Maximum, minimum and average temperature
    • Precipitation
    • Snowfall
  • Monthly summarized data
    • Totals, means
    • Extremes
    • Number of days
  • Period of record
    • Back to late-1800s for many locations
slide41
Number of Corrections

(~99% of corrections are key-entry errors)

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