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Summary
| Description |
English: This chart from September 1949 shows the United States Weather Bureau's prediction for where the Soviet Union first tested its atomic bomb in 1949. Each colored zone indicates the probability that the bomb was detonated within that area. This is one of several maps, each one showing slightly different probabilities depending on the exact date the bomb was assumed to have gone off (this one uses the date now known to be correct). The analysis was done by extrapolating backwards from assumed wind patterns. |
| Date | |
| Source | US National Archives website: Harry S. Truman Presidential Library, Collection HST-PSF: President's Secretary's Files (Truman Administration), Series: Subject Files, File Unit: National Security Council - Atomic File, 1945-1952: Atomic Bomb: Reports: "Report, United States Weather Bureau Report on Alert Number 112 of the Atomic Detection System." |
| Author | United States Weather Bureau |
Licensing
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:37, 4 April 2024 | | 4,332 × 3,337 (26.91 MB) | NuclearSecrets | Uploaded a work by United States Weather Bureau from [https://catalog.archives.gov/id/310987319?objectPage=7 US National Archives website]: Harry S. Truman Presidential Library, Collection HST-PSF: President's Secretary's Files (Truman Administration), Series: Subject Files, File Unit: National Security Council - Atomic File, 1945-1952: Atomic Bomb: Reports: "Report, United States Weather Bureau Report on Alert Number 112 of the Atomic Detection System." with UploadWizard |
File usage
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