cache valley sample locations - earth system research ...€¦ · 13/07/2017 · jan/feb 2016...
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• EPAtrailerlocatednearUSUcampusinLogan,UT– Picarro @EPAtrailer– NH3,CO2,CH4
• ≈5secdata– Sampled1-16-17to2-14-
17• UDAQCVmonitoringsite
locatedinSmithfield– approx.9.8kmfromEPA
trailer– approx.28melevation
difference(SMlower)
CacheValleySampleLocations
UDAQ24-hrPM2.5
Picarro capturedpartsof3inversionevents
Picarro Data(CO2 andCH4)
10dayinversionevent
Picarro Data(NH3)10dayinversionevent
WhytheNH3 depletion??
Jan/Feb2016PassiveNH3 (NADPtalk)
WasatchFront2016NH3:14.2µg/m3(≈20ppb)
CV2016NH3:106.6µg/m3(≈153ppb)− five7-daysampleperiodsin2016− 2006winterNH3:29.1µg/m3(≈42ppb)
USUsite≈50µg/m3
(72ppb)
2107PassiveNH3 SamplingNetworks• Ogawapassive
NH3 samplers
• ICanalysis(USDA,Dr.PhilSilva)
• 25sitesinCacheValley– Somesites
intentionallocatednearprobablehighemissionareas
• 11siteslocatedalongtheWasatchFront
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