variables: 819607

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id name unit description createdAt updatedAt code coverage timespan datasetId sourceId shortUnit display columnOrder originalMetadata grapherConfigAdmin shortName catalogPath dimensions schemaVersion processingLevel processingLog titlePublic titleVariant attributionShort attribution descriptionShort descriptionFromProducer descriptionKey descriptionProcessing licenses license grapherConfigETL type sort dataChecksum metadataChecksum
819607 Area that can be destroyed by nuclear weapons in a first strike square kilometers   2024-01-30 09:03:09 2024-07-08 18:13:01     1945-2010 6365   km² 
{
    "unit": "square kilometers",
    "shortUnit": "km\u00b2"
}
 0     nuclear_warheads_area grapher/war/2024-01-30/strategic_nuclear_forces/strategic_nuclear_forces_monadic#nuclear_warheads_area   2 major           Measured in square kilometers.   
[
    "This data refers to the destruction of unprotected structures, such as building and factories.",
    "For reference, the world's current total urban land area is around 1.9 million square kilometers.",
    "We calculate the destroyable area by multiplying the equivalent megatonnage of all warheads with the approximate area destroyed by one megaton (20 square miles) and then converting it into square kilometers.",
    "A \"megaton\" is the explosive energy released by one million tons of TNT. For comparison, the bombs dropped on Hiroshima and Nagasaki were 0.015 and 0.021 megatons, respectively.",
    "An equivalent megaton is a way of making the explosive energy of different warheads comparable. It weighs small warheads \u2014 in this case those with at most one megaton \u2014 more than large ones, because they are relatively more destructive.",
    "The warheads included here are strategic ones \u2014 those designed for use away from the battlefield, such as against military bases, arms industries, or infrastructure.",
    "Only those strategic warheads are included that could be deployed \u2014 those that could be carried by ballistic missiles, bombers, and submarines in one strike.",
    "The exact number of countries' warheads is secret, and the estimates are based on publicly available information, historical records, and experts' estimates."
]
 - The area that can be destroyed by nuclear weapons of a certain yield is calculated based on Richelson, Jeffrey. 1980. Evaluating the Strategic Balance. American Journal of Political Science 24(4): 782. We assume each equivalent megaton can destroy 20 square miles, which is equivalent to 51.8 square kilometers.       float 
[]
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