#189 closed Support (fixed)
FLEXPART Release - Consistent Cs-137 isotope releases and output interpretation
Reported by: | acheloni | Owned by: | |
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Priority: | major | Milestone: | |
Component: | FP other | Version: | FLEXPART 9.0.2 |
Keywords: | Flexpart release | Cc: |
Description
Hello everyone,
I'm trying to correctly set releases to simulate a nuclear plant incident.
I tried with masses (Kg) to specify the release.
An incident such as Fukushima or Chernobyl with about 1016 Bq Cs-137 radionuclide activity, the corresponding mass released in the atmosphere is about 3.2Kg.
With "3.2" set for masses and a 12hr release, the resulting Cs-137 forecasted concentrations are lower than 10-13 (Kg/m3 ?).
Is that a sounding result or I'm missing something?
Generally, what's the "best" way to configure a nuclear plant incident?
Thank you in advance
Alessandro Cheloni
Change History (7)
comment:1 Changed 6 years ago by pesei
comment:2 Changed 6 years ago by pesei
Are you satisfied? Can we close the ticket?
comment:3 Changed 6 years ago by acheloni
Hello,
sure, sorry for the late response.
Thank you so much
comment:4 Changed 6 years ago by pesei
- Resolution set to fixed
- Status changed from new to closed
comment:5 Changed 6 years ago by acheloni
Hello, excuse me but where do I find the option to set sources as TBq? I'm running flexpart 9.0.
thank you again
comment:6 Changed 6 years ago by pesei
You don't need an option. The ratio TBq / Bq is 10e12. As you can see from the FLEXPART manual, if sources are given as kg, output fields will contain concentration in 1e-12 kg/m3 (a factor of 1e-12 is built into FLEXPART for forward runs).
btw, this type of question is what the mailing list is intended for!
Hello Allessandro,
why do you think that <1e-13 kg/m3 would be too low? If 1e16 Bq is about 1 kg, then this is is about 1 kbq/m3 which is not too low.
By the way, if you express your source as TBq, you will obtain concentrations in Bq/m3.