[ RadSafe ] Modeling Atmospheric Transport and Dispersion

[Dan McCarn]

Yikes Ahmad:

I sincerely hope you never need such software!

Dan ii

On Tue, Mar 6, 2012 at 9:19 PM, Ahmad Al-Ani <ahmadalanimail at yahoo.com> wrote:
>
> Hi Dan, this is very close to what I was looking for,
> https://narac.llnl.gov/HotSpot/HotSpot.html
>
> and was described well on page 135 of this document:
> http://www.acq.osd.mil/ncbdp/narp/pdf/NARP_InternetSupplement_010512.pdf
>
> The "HPAC" mentioned in the above file is not for public use according to this:
> http://tinyurl.com/76593gk
>
> Ahmad
>
> ------------------------------
> On Tue, Mar 6, 2012 12:03 PM AST (Arabian) Dan McCarn wrote:
>
>>Hi Ahmad:
>>
>>There are Gauss Plume / Puff models available...
>>
>>*CALPUFF* Is a non-steady state Gaussian *puff* model, suitable for long
>>range transport, atmospheric chemistry...
>>*PUFF*-*PLUME* - A *Gaussian* chemical/radionuclide dispersion model
>>
>>Which leads me to the overwhelming question - to borrow a line from T.S.
>>Elliot:
>>
>>I have a project in which there are 6-8,000 release points which are 200m
>>radius central pivot spray irrigation systems.  The area is quite flat with
>>only 30-50 meters of relief over 10s of kilometers. Given a 'Q' for each
>>release point and known atmospheric conditions, I'd like to calculate the
>>average dose of radon & daughters being released.  The total release in a
>>season is about 3-5 KCi of radon activity in an area about 3,000 km^2.  The
>>release is fairly uniform throughout the irrigated area.  Several
>>communities are present in the 'middle' of the irrigated area. Wind rose is
>>well characterized and the vertical temperature change is uniform.  There
>>are seldom, if any, temperature inversions.  The typical radon
>>concentrations in the irrigation water are 1,500 -10,000 pCi/L. Outliers
>>may exceed 1 million pCi/L in the vicinity of a uranium feature.
>>
>>Are their any 'magic bullets' already developed to handle this kind of
>>problem?
>>
>>Dan ii
>>
>>Dan W McCarn, Geologist
>>108 Sherwood Blvd
>>Los Alamos, NM 87544-3425
>>+1-505-672-2014 (Home – New Mexico)
>>+1-505-670-8123 (Mobile - New Mexico)
>>HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
>>
>>
>>On Tue, Mar 6, 2012 at 12:30 AM, Ahmad Al-Ani <ahmadalanimail at yahoo.com>wrote:
>>
>>>
>>>
>>> Are there publicly accessible tools for modeling atmospheric transport and
>>> dispersion similar to US Department of Defense's "HPAC" – Hazard Prediction
>>> Assessment Capability?
>>>
>>> Disregarding the intended message of the report, "HPAC" was used to create
>>> this report "What if the Fukushima nuclear fallout crisis had happened here
>>> (US)?" link http://www.nrdc.org/nuclear/fallout/
>>>
>>> Ahmad
>>>
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