FLEXPART air mass histories for NOMADSS

Operational trajectory calculations have ended on 07-26-2013. I am happy to support you with additional calculations to investigate specific questions! Just let me know.

Choose a release point:

Methods

All simulations done using FLEXPART 9.0, driven by 3 hourly NCEP GFS wind fields (analyses and +03 hrs forecast interlaced for past periods) on a 0.5 deg lat-lon grid.
10000 particles released for the first 3 hours at each release point between 0 and 100 m AGL (unless noted otherwise in release name), and followed back in time for 72 hours on a 0.1 deg lat-lon grid.
Resulting footprints (airmass between 0 and 100 m AGL), are then convolved with emission inventories (0.5 deg) to create loading plots:

anthro: MACCcity anthropogenic NO emissions
isoprene/terpenes: MEGAN BVOC emissions as calculated online in a MOZART simulation with realistic meteorology
fire: FINN CO emissions from fires, data from day before
stacks_so2: NEI SO2 stack emissions (all point sources). We use the 100 - 500m AGL footprint for convolution to account for the fact that stacks emit aloft, not at the surface.
mercury: NEI mercury emissions (courtesy of A. Giang, MIT). We use the 100 - 500m AGL footprint for convolution to account for the fact that stacks emit aloft, not at the surface.

All of them are passive air tracers: no chemistry, no (wet/dry) deposition. However, we consider a 2 day e-folding lifetime in emissions (except for mercury).

See also this presentation: forecaster dry run (05/23/2013)

Hints and references

Use arrow keys to navigate:
left arrow - previous date/release, right arrow - next date/release, up arrow - up to higher index, down arrow - go to first child node

FLEXPART is developed at NILU, and released under the GNU General Public License 3.0. Some postprocessing tools used are courtesy of Stephan Henne at Empa.

Please send questions, suggestions, comments to Christoph Knote, knote@ucar.edu.
Last refresh at Fri Jul 26 16:19:25 2013 LT