#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!
comment:7 Changed 6 years ago by mdmulder
Petra, do you mean mailing list or ticket system? Because to my understanding this question is not suitable for the mailing list.
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.