Monday, July 09, 2012

Via @bruces: Asian Smoke Reaches the Pacific Northwest

"The NOAA Air Resources Lab has a wonderful facility online-their HYSPLIT model in which you can compute air trajectories in time.   Well, I tried this for a point over Seattle at 5000 meters...and traced back the air parcel trajectory back in time over the past 180 hr.

Here is what I got using HYSPLIT.   The air over us can be traced back to Asia at low levels. (Think about that when that next coal-ship leaves a Northwest port to Asia--we ship the coal one way and pollution comes right back!)"

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