Surface Airways Observations (SAO) Hourly Data (1965-1981) (CDMP)

CDMP SAO 65-81 Hourly

The dataset consists primarily of U.S. surface airways observations (SAO) data beginning in 1965 and extending through 1981.

Note that a few stations have already had certain years within this 1965-81 period re-keyed as hourly. For these stations, only a subset of the period was keyed. In addition, other stations did not have data keyed at all during this period, or during the periods immediately before or after the 1965-81 range. These stations data have been keyed to as thoroughly as possible complete their entire period of record back to July, 1948.

The major data variables are as follows: WBAN Identification Station Number, observational type, ceiling and cloud, visibility, present weather, temperature, relative humidity, wind, pressure and precipitation. The observations are generally recorded for the 24 hour period midnight to midnight.

The keying format was designed to reflect the data as entered on the page to make keying easier for the key entry personnel, who were not trained meteorological technicians. The "raw" observations which comprise this dataset will be quality checked to include data adjustments and converted to NCDC's Integrated Surface Hourly (ISH) format.
  • Cite this dataset when used as a source.
  • NCEI DSI_3853_01
  • gov.noaa.ncdc:C01309
Other Access
  • NCEI Customer Support (offlineAccess)
    Data in this archival information package are not currently available for public download from NCEI. Please contact NCEI Information Services directly for access to these data.
Distribution Formats
  • CSV
Distributor Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
1-828-271-4800
ncei.orders@noaa.gov
Dataset Point of Contact Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
1-828-271-4800
ncei.orders@noaa.gov
Time Period 1965-01-01 to 1981-12-31 (time interval: 1-hour)
Spatial Bounding Box Coordinates
N: 72.0
S: 18.0
E: -66.0
W: 172.0
Spatial Coverage Map
Dataset Information
  • CDMP web page
    Web page describing the program that created this dataset
General Documentation
Associated Resources
Publication Dates
  • publication: 2006-03-09
  • creation: 2006-03-09
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Not planned
Purpose Due to budgetary constraints the 1965-1981 SAOs were originally digitized in three-hourly intervals, even though they were available hourly in manuscript form. This presented problems for users who were conducting research using the pre-65 and post-81 hourly data in conjunction with the 65-81 data. In order to create a more homogenous dataset, the National Climatic Data Center (NCDC) re-digitized the 65-81 in an hourly fashion. As part of the mission of the National Climatic Data Center's (NCDC) Climate Database Modernization Program (CDMP), NCDC embarked upon a massive project to preserve these paper records, and make their data more accessible. To that end, these records were keyed, leading to this dataset. These observations may be integrated with hourly in-situ datasets to extend the period of record.
Dataset Citation
  • Cite this dataset when used as a source.
Cited Authors
  • Joe Elms
    NCDC Climate Database Modernization Program
  • Jason Cooper
    DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Originators
  • Joe Elms
    NCDC Climate Database Modernization Program
Collaborators
  • Jason Cooper
    DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature
  • Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Dew Point Temperature
  • Earth Science > Atmosphere > Air Quality > Visibility
  • Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Fraction
  • Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Height
  • Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Speed
  • Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Direction
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Use Constraints
  • Cite this dataset when used as a source.
  • NCEI cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NCEI makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Fees
  • In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Lineage Statement Data in this dataset were keyed by contract staff under the Climate Database Modernization Program (CDMP), sent to NCDC via FTP. Data were also sent to the Northeast Regional Climate Center (NeRCC) in Ithaca, New York, where staff applied automated quality control (QC) routines and sent QC'd data files back to NCDC. The period was chosen because the Weather Bureau/Weather Service forms were more consistent during this time period, allowing for faster keying of data.
Source Datasets
  • Surface Weather Observations Hourly
    • Surface Weather Observations Hourly
      More information about the actual forms used are available in the Surface Weather Observations Hourly landing page.
    • Description of Source: A subset of stations from the Surface Weather Observations Hourly collection was used in the keyed dataset.
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Last Modified: 2018-05-04
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