Geoscience Reference
In-Depth Information
5.2.4.
Heterogeneous measurement units
Finally, one of the last obstacles was the number of
different norms used to measure radiation. The main units
were the Gray (gy) or the Sievert (Sv) also declined in
millisievert (mSv) and microsievert (µSv). The absence of a
single norm among the official sources resulted in the
radiation data being presented in different formats. Even
within a single source, the radiation units were far from
being consistent, as highlighted by Fleepcom, who took part
in modeling the data:
Dear TEPCO/NISA, Please use consistent levels
in your documents. Switching from µSv/h to
mSv/h half way thru a document is dumb.
19
[
sic
]
Message on Fleepcom Twitter account, March 29,
2011
Marian Steinbach summarizes as follows the problems
that accompanied the publication of radiation data by official
sources:
They [
the official sources
] did not publish [
the
radiation readings
] in real time, they did not
publish [
them
] in structured format, and they
published [
them
] whenever they wanted to.
Interview with Marian Steinbach, August 25,
2011
In response to the lack of transparency on the situation
post-March 11, 2011, several Web maps appeared to organize
emergency relief and collect information on the missing
people. In addition to the maps related to the earthquake,
other maps focused on visualizing radiation in Japan. The
latter were grouped together into a corpus in order to
analyze how they were created and used by Web users.
19 See: https://twitter.com/fleepcom.
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