Balloon Group Projects, Ideas

Laramie

1) Administration

a. complete archiving of recent flights

b. compare newby, jupiter, to ata6

c. progress report NSF

2) Papers

a. compare UW and SAGE II/III (Laramie & Arctic) – extinction (Mahesh)

b. compare surface area UW new and old measuremetnts (Mahesh?)

i. Compare Sfc/Vol(Ext(N(r))) vs Sfc/Vol(N(r)).

ii. Method to empirically correct satellite data?

c. tropical contamination problem (td)

d. histroy of aerosol size distribution parameters (td)

e. Apply optimal estimation analysis to retrieval of Laramie size distributions.

f. Discrepancy between OPC and backscattersonde - mid latitude comparison, e.g. Rosen,

g. Tmatrix calculations to compare OPC measurements with independent optical scattering measurements.

McMurdo

1) Administration

a. organize/archive all cn/psc data – for Arctic as well

b. 2008 ozone data to archive

2) Ozone papers

a. Stoichiometry of ozonesonde KI solutions (Leslie)

b. Cause of recent diminishment of Antarctic ozone loss - Energy deoposiont in stratosphere (Stephanie)

c. Dual solution (1.0% vs 0.5%) Antarctic ozone flights (JM)

d. 20 year climatology (JM)

3) PSC/Aerosol papers

a. Recent PSC measurement (JM)

b. CN layer (Patrick?)

i. Compare measurements with models in the literature.

ii. What is the altitude of the top of the CN layer in Antarctica, can we get through it with a summertime flight?

c. Large particles in Antarctic winter/spring (td)

d. Wintertime measurements (td/jm)

e. Model growth of PSC particles (using Larsen's model) and compare with observations on a case by case basis - Arctic and Antarctic. Requires temperature history along back trajectory and some assumptions about nucleation.

f. Analyze SAGE III data in terms of Poole's method and OPC measurements to infer more information from SAGE III measurements. Define limitations of satellite data.

Concordiasi

1) Communicate with French

2) Lab work to characterize/assess problems

Laboratory/Engineering/Instrument characterization:

1) Comparison of OPC with nephelometer (lab work).

2) Investigate pressure dependent counting efficiency of: CN, OPC, New OPC, Small particle OPC.

3) Tmatrix calculations to compare OPC measurements with independent optical scattering measurements.

Glimpse – pending

Black Carbon UW – complete proposal - submit