2011050909

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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2011043009

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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2011042909

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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2011041809

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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2011041609

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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2011041309

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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2011041109

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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10 April PM Forecast

Weather: Today’s winds, snow, and whiteout seem likely to continue through tomorrow and on through Tuesday morning. Wind and clouds are expected to continue throughout the week, although by Tuesday afternoon the overcast may ease into partly cloudy conditions for some parts of the following days.

Chemical: Surges in NO2 (~40mg/m2) expected today and Thursday (14 April). By the 14th it looks like there may be a tendril of SO4-laden air mass (~40mg/m2) reaching toward Svalbard from the UK and France, but it isn’t clear if it will arrive intact. It looks like the 14th (thursday) may also herald the next surge in CO, with a large proportion from biomass burning sources.

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2011041009

FLEXPART 24-hr Forecasts for CO, SO4, and BC

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9 April PM Forecast

Weather: Todays fairly heavy snowfall and fairly calm winds (at least around town – weather was reportedly considerably worse just a short ways up the mountains) will probably continue through tomorrow night. Periods of snow may continue through Monday night. The temperature may continue to rise, possibly close to freezing, until falling again on Tuesday or Wednesday.

Chemical: Sunday and Monday look interesting because it seems a large portion (50% or greater) of the predicted CO transport has a biomass burning source. In terms of volume of species, there aren’t really any significant plumes within the beginning of the week.

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