Aug 19, 2017 13:55
6 yrs ago
3 viewers *
English term

Downwind

English Other Military / Defense
CBRN vulnerability analysis specifically focuses on casualty estimates. The basic steps for casualty estimation are estimating the delivery capability, generating effects information, and estimating casualty effects downwind.

Discussion

Herbmione Granger Aug 19, 2017:
this should help '816,207 are distributed in 5,554 separate areas, each approximately 1 km square, within 5 km of the release, and the remainder are in 198,456 approximately 1 km squares in the 45o downwind arc' (PDF) https://www.ida.org/idamedia/Corporate/Files/Publications/ID...
Masoud Kakouli Varnousfaderani (asker) Aug 19, 2017:
The text is US English ..
Herbmione Granger Aug 19, 2017:
@Helena For a non-native speaker, perhaps 'casualties found away from the source, where the wind spread the chemical/fallout/pathogen'. 'In the former case, groundbursts generate vast clouds of radioactive fallout which are likely to cause severe civilian casualties downwind.' https://news.usni.org/2013/10/02/floating-shell-game-tom-cla...
Helena Chavarria Aug 19, 2017:
@herbalchemist I'm from the UK and I had never heard the word until today, though I could imagine what it meant. 'In the direction of the wind/downwind' is more precise.
Herbmione Granger Aug 19, 2017:
further down the line I would understand "casualties further down the line." Is "casualties downwind" the British phrase?
My other interpretation is "further out". Just thinking aloud in case it helps.

Responses

+4
55 mins
Selected

in the direction of the wind

Upwind is an antonym of downwind. Downwind is an antonym of upwind.
As adverbs the difference between downwind and upwind is that downwind is in the same direction as the wind is blowing while upwind is in the direction from which the wind is blowing.

http://wikidiff.com/downwind/upwind

1.)Down Wind = The wind is blowing away from you. You are moving with the direction of the wind/current.
2.)Upwind = Toward or against the wind or the direction from which it is blowing. You are moving into/against the wind/current. It is in your face.

http://www.fieldandstream.com/answers/quick-tips/ok-may-soun...

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Note added at 1 hr (2017-08-19 14:57:25 GMT)
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There's quite a lot of information in the following reference:

http://www.njsp.org/division/homeland-security/pdf/hrmu/0608...

is this related to chemical wind-borne hazards?

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Note added at 4 hrs (2017-08-19 17:59:59 GMT)
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On page 2 of the last link I posted (New Jersey Hazmat Emergency Response Course), under Course Goals it says:

'...The classes that follow are designed to increase the depth of knowledge of responders who may be confronted with the challenges created if a terrorist incident were to involve the employment of nuclear, biological, chemical (NBC) agents.'

At the top of page 2 of Module 3 it says:

Biological Agents

'...Sverdlovsk (now Ekaterinburg) was located about two and one-half miles from a then Soviet military facility. On this particular day, the wind was blowing such that Sverdlovsk was downwind from the military facility when an explosion occurred'.

There are more references to 'downwind' but it would take me ages to copy all the fragments where the word appears.
Note from asker:
It is about chemical, biological, radiological, nuclear agents but the text does not explicitly speak about wind-borne/airborne particles at all.
Peer comment(s):

agree Daryo : anything that ends up in the air will be spread "downwind" - in the direction where the wind is blowing - as simple as ...
3 hrs
Thank you, Daryo :-)
agree Rachel Fell
4 hrs
Thank you, Rachel :-)
agree Herbmione Granger
5 hrs
Thank you, herbalchemist :-)
agree acetran
18 days
Thank you, acetran :-)
Something went wrong...
4 KudoZ points awarded for this answer.

Reference comments

32 mins
Reference:

Downstream?

It is easy to confuse the words upwind (upstream) and downwind (downstream). Suppose you are driving from the West toward the East. From your current position on the road, West is upstream and East is downstream. In forecasting, reference to upstream and downstream is important when describing the wind flow associated with the jet stream or explaining the trajectory of air along a trough or ridge. A way to remember the difference between the terms is to remember the word downstairs. Both downwind and downstairs lead you to your destination.

http://www.theweatherprediction.com/habyhints/32/

If CBRN involvement suspected / confirmed: - personal protection (also command responsibility)
(minimum: respirator and gloves, up to MOPP4)
- casualties are to wear their protective mask at all time
- concentrate casualties downwind from uninvolved personnel - report

http://ciomr.org/download/omc/CBRN_Med/v1.1/1/v1.1CBRNmedper...


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Note added at 36 mins (2017-08-19 14:32:40 GMT)
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Russia can be expected to challenge the US at the UN security council over the legality of the US attack. Tillerson attempted to sketch out an argument that it was a preventative strike to stop chemical weapons getting into the hands of terrorists who could use them against the US. But that tenuous self-defence justification was weakened by the Pentagon’s insistence that the goal of the strike was not to destroy chemical weapons. In fact, it took great pains to avoid bombing any sites where chemical weapons may have been stored, for fear of causing civilian casualties downwind.

https://www.theguardian.com/us-news/2017/apr/07/by-bombing-a...
Peer comments on this reference comment:

agree acetran
19 days
Thank you, acetran :-)
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