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NCDC TD3505 Integrated Surface Hourly Data


This worldwide collection of surface weather observations is produced at the National Climatic Data Center (NCDC) from NCDC Surface Airway Hourly Observations (TD3280), U.S.A.F. DATSAV3 Surface Hourly Observations (TD9956), and NCDC Cooperative Hourly Precipitation (TD3240). Observations are all in the same ASCII format.

Mandatory data includes pressure, temperature, dew-point, visibility, sky condition, and wind observation, but there may also be additional data, data remarks, or data element quality sections.

The earliest data is for 1901. The earliest years have the least volume of data, a few hundred megabytes; the volume in the 1950s-early 1960s increased by a factor of 10-20; 1965-1972 shows a decrease because of a loss of data; beginning in 1973 with about 5 gigabytes of data, volume has gradually increased to about 20 gigabytes per year. There are now about 10,000 active stations.

Temporal Range:
1901-01-01 to 2011-12-31
Air Temperature Cloud Ceiling Cloud Frequency Cloud Height
Cloud Types Dew Point Temperature Geopotential Height Hail
Icebergs Ice Growth/Melt Ice Growth/Melt Maximum/Minimum Temperature
Precipitation Amount Pressure Tendency Sea Ice Age Sea Ice Concentration
Sea Level Pressure Sea Surface Temperature Skin Temperature Snow
Snow Depth Snow Water Equivalent Sunshine Surface Pressure
Surface Winds Swells Visibility Wave Height
Wave Period
Data Types:
Platform Observation
Data Contributors:
National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
Air Force Combat Climatology Center, U.S. Air Force, U.S. Department of Defense
 |  DOD/USAF/557WW
557th Weather Wing, U.S. Air Force, U. S. Department of Defense
Total Volume:
503.59 GB
Data Formats:
Related RDA Datasets:
NCDC TD9685 Global Surface Observations (from USAF DATSAV), hourly 1967-1980
U.S.A.F. DATSAV Surface Observations, 1973-1981
U.S.A.F. DATSAV3 Surface Observations, 1901-continuing
AWS TD13 Global Surface Observations, daily 1901-1973
Metadata Record:
Data License:
Citation counts are compiled through information provided by publicly-accessible APIs according to the guidelines developed through the project. If journals do not provide citation information to these publicly-accessible services, then this citation information will not be included in RDA citation counts. Additionally citations that include dataset DOIs are the only types included in these counts, so legacy citations without DOIs, references found in publication acknowledgements, or references to a related publication that describes a dataset will not be included in these counts.