Daily Summary Observations, First Order - United States
SOD First Order
This collection consists of data that has been quality controlled through both an automated and manual QC processes. The dataset consisted of summary of the day data from approximately 500 First Order stations (primarily major airports) in the U.S. and its possessions. Included variables are: daily summaries of hourly data for temperature, precipitation, pressure, observed weather, and wind speed and direction. The primary source of this information is from the Automated Surface Observation System (ASOS), however other collections are also included, such as SRRS, keyed data, and others -- see documentation for a complete list. Data were incorporated into the GHCN-Daily dataset as of 2013.
- Cite this dataset when used as a source.
- NCEI DSI 3210_01
- gov.noaa.ncdc:C01318
| Other Access |
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NCEI Customer Support (offlineAccess)
This dataset is not currently available for public download from NCEI. Please contact NCEI to request access to these data.
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| Distribution Formats |
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| Ordering Instructions |
Contact NCEI for other distribution options and instructions. |
| Distributor |
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
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| Dataset Point of Contact |
Customer Engagement Branch
NOAA National Centers for Environmental Information
1-828-271-4800
ncei.orders@noaa.gov
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| Time Period |
1871 to 2013 (time interval: 1-day) |
| Spatial Bounding Box Coordinates |
West: 134.0
East: -64.0
South: -15.0
North: 72.0
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| Spatial Coverage Map |
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| General Documentation |
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| Associated Resources |
- GHCN-D
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GHCN-D
These data are available in the GHCN-D
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| Publication Dates |
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| Data Presentation Form |
Digital table - digital representation of facts or figures systematically displayed, especially in columns
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| Dataset Progress Status |
Complete - production of the data has been completed |
| Data Update Frequency |
Not planned |
| Purpose |
Provides the surface summary of the day climate record at major airports and other first order locations in the U.S. and its territories. |
| Dataset Citation |
- Cite this dataset when used as a source.
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| Cited Authors |
- DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce
- DOD/USAF/AFCCC > Air Force Combat Climatology Center, U.S. Air Force, U.S. Department of Defense
- DOD/USNAVY/FNMOC > Fleet Numerical Meteorology and Oceanography Center, U.S. Navy, U. S. Department of Defense
- DOT/FAA > Federal Aviation Agency, U.S. Department of Transportation
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| Originators |
- DOC/NOAA/NWS > National Weather Service, NOAA, U.S. Department of Commerce
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| Collaborators |
- DOD/USAF/AFCCC > Air Force Combat Climatology Center, U.S. Air Force, U.S. Department of Defense
- DOD/USNAVY/FNMOC > Fleet Numerical Meteorology and Oceanography Center, U.S. Navy, U. S. Department of Defense
- DOT/FAA > Federal Aviation Agency, U.S. Department of Transportation
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| Processors |
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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| Publishers |
- NOAA National Centers for Environmental Information
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| Theme keywords |
Global Change Master Directory (GCMD) Science Keywords
- Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature
- Earth Science > Atmosphere > Precipitation
- Earth Science > Climate Indicators > Cryospheric Indicators > Snow Depth
- Earth Science > Land Surface > Surface Radiative Properties
- Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Speed
- Earth Science > Atmosphere > Atmospheric Winds > Surface Winds > Wind Direction
- Earth Science > Atmosphere > Atmospheric Pressure
- Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow
Global Climate Observing System (GCOS) Essential Climate Variables (ECVs)
- Atmospheric - Surface - Air Temperature
- Atmospheric - Surface - Precipitation
- Terrestrial - Snow Cover
- Atmospheric - Surface - Surface Radiation Budget (including Solar Irradiance)
- Atmospheric - Surface - Wind Speed And Direction
- Atmospheric - Surface - Air Pressure
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| 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
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| Platform keywords |
Global Change Master Directory (GCMD) Platform Keywords
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| Instrument keywords |
Global Change Master Directory (GCMD) Instrument Keywords
- Thermometers
- Rain Gauges
- Wind Vanes
- Barometers
- Snow Measuring Rod
- Earth Remote Sensing Instruments > Passive Remote Sensing > Photon/Optical Detectors > Sunshine Recorders
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| Place keywords |
Global Change Master Directory (GCMD) Location Keywords
- Continent > North America > United States Of America
- Ocean > Pacific Ocean > Western Pacific Ocean > Micronesia
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| Data Resolution keywords |
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
Global Change Master Directory (GCMD) Temporal Data Resolution Keywords
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| Stratum keywords |
Global Change Master Directory (GCMD) Location Keywords- Vertical Location > Land Surface
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| Use Constraints |
- Cite this dataset when used as a source.
- Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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| Access Constraints |
- Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, 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.
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| Fees |
- In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
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| Lineage information for: dataset |
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| Lineage Statement |
These data were collected by National Weather Service and FAA personnel. Data were transmitted to NCDC, compiled, quality controlled and reformatted. The data were incorporated into GHCN-Daily in 2013 and continue to be updated and maintained in GHCN-D. |
| Processing Environment |
The data are available in ASCII flat files. The format is described in the DSI-3210 documentation. |
| Source Datasets |
- Summary of Day - First Order - ASOS
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Summary of Day - First Order - ASOS
Source dataset landing page with general information and access links for that dataset.
- Description of Source: Source dataset
- Temporal extent used: 2000-10-01 to 2005-12-31
- U.S. Daily Surface Data (COOP Daily/Summary of Day)
- SRRS
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AFOS NWS SRRS Data
Source dataset landing page with general information and access links for that dataset.
- Description of Source: Source dataset
- SRRS
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Gateway NWS SRRS Data
Source dataset landing page with general information and access links for that dataset.
- Description of Source: Source dataset
- Surface Weather Observations (Original Manuscripts)
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| Lineage information for: repository |
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| 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.
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Last Modified: 2023-06-23
For questions about the information on this page, please email:
ncei.info@noaa.gov
