[Imc-makerspace] AIRNow - Homepage

[Stewart Dickson]

I would expect it more to be an effect of the Atlanta, Augusta, GA, 
Charlotte, NC and Columbia, SC Metropolitan areas after Meteorology 
happens.  I know there's a stinky plastics factory just NorthWest of 
Charlotte.  Coal-fired power plants in Alabama cause acid rain in New 
England.  That's just the way the weather goes.

-Stewart


On 7/6/2011 12:26 PM, William V. Johnston wrote:
> A lot of that red and orange around Fayetteville looks like it could 
> be from training in Fort Bragg's back forty.  I've been there, done 
> that, so it wouldn't surprise me.
>
> On Wed, Jul 6, 2011 at 10:07 AM, Stewart Dickson 
> <s-dickson at hdfgroup.org <mailto:s-dickson at hdfgroup.org>> wrote:
>
>     Does everyone know this one?
>     http://www.airnow.gov
>>     The air quality data used in these maps and to generate forecasts
>>     are collected using either federal reference or equivalent
>>     monitoring techniques or techniques approved by the state, local
>>     or tribal monitoring agencies. Since the information needed to
>>     make maps must be as "real-time" as possible, the data are
>>     displayed as soon as practical after the end of each hour.
>>     Although some preliminary data quality assessments are performed,
>>     the data as such are not fully verified and validated through the
>>     quality assurance procedures monitoring organizations use to
>>     officially submit and certify data on the EPA AQS(Air Quality
>>     System). Therefore, data are used on the AIRNow Web site only for
>>     the purpose of reporting the AQI. Information on the AIRNow web
>>     site is not used to formulate or support regulation, guidance or
>>     any other Agency decision or position.
>     We're in the dog days of summer now. Fayetteville, NC
>     <http://www.airnow.gov/index.cfm?action=airnow.local_city&cityid=111>
>     -- Yuck!
>
>     I wasn't sure whether the map was from monitored or modeled
>     data.   Sounds like it's monitored.
>     The models (monitored data is only past-tense, you can only create
>     a forecast from a model) are amazingly
>     accurate.  At the UNC-A NEMAC http://nemac.unca.edu  I used to run
>     the Community Model for Air
>     Quality (CMAQ). http://www.cmaq-model.org    It is old.   The new
>     version is called WRF-CHEM.   CMAQ
>     used MET as its meteorology input.  WRF is the newer Meterology
>     model which is actually used by the NOAA-NWS to predict the
>     weather.   CMAQ/WRF-CHEM adds atmospheric chemistry to the
>     Meteorology model.  It consists of emission sources plus
>     light-driven reactions like NOX+Sunlight->O3
>
>
>
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