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Climatic Data (Computer Files)

Identifier: ACC 2013-061:

Scope and Contents

From the Series: This series contains computer files containing climatic readings taken during the course of the Division of Weather Modification’s cloud seeding activities, as well as historic readings from South Dakota and surrounding states for comparison (ca 1931-1975). The series also contains 135 film reels documenting radar readings at the Bowdle, Chamberlain, Mitchell, Rapid City, and Webster sites from 1974. Also included is a folder of correspondence, information regarding the computer programs used to record the readings, and reference manuals.


  • 1931 - 1976


From the Series: 1 Cubic Feet (0.578 GB)

Language of Materials

From the Record Group: English

Container Summary

(0.578 GB)

Processing Note

The climatic readings were originally transferred to the Archives on computer data tapes. In November 2013, the data tapes were sent to Muller Media for conversion. The resulting EBC and TXT files were saved with the Archives' Digital Collections. Muller Media produced an Excel spreadsheet detailing the data recovery success rates for each tape. Archives staff also created an Excel spreadsheet to document the information written on each tape. These spreadsheets are available on the Archives server. The obsolete data tapes were destroyed.

Repository Details

Part of the South Dakota State Archives Repository

900 Governors Dr
Pierre South Dakota 57501 USA
605-773-6041 (Fax)