HR Clinic

Email announcing the Clinic (sent 30-Jan-2009)

Dear all,

We would like to announce a "clinic" for the analysis of high-resolution ToF-AMS data (also including unit-resolution analyses). The idea is to provide a forum to discuss the analysis of high-resolution spectra (PIKA) in detail, and also including other topics such as PMF, APES (elemental analysis) and also unit-resolution analysis (Squirrel) in a format for which we don't have time in the regular Users Meetings.

Doug Worsnop, Donna Sueper, James Allan, Manjula Canagaratna, Qi Zhang, Jesse Kroll, Pete DeCarlo, and Jose Jimenez will be there. Ingrid Ulbrich will be there at least during the PMF discussions. The format will be something like:

• first day with presentations of new features in PIKA and overview of analysis
• Users bring up problems or special cases they have encountered in their work
• Next several days: we intermittently break up and everyone works in their own data and we discuss interesting questions or problems as a group. We will also cover the other topics (PMF, APES, Squirrel) as appropriate, in a flexible way decided by consensus of the attendees.

The people who should attend are students, postdocs, and researchers who are currently actively analyzing high-resolution (and also unit-resolution) AMS data.

The location will be the University of Colorado-Boulder, and the dates will be Sat June 6 to Wed June 10, 2009. (Doug will only be present Sat to Mon, all the other organizers should be there the whole time). The dates are set because of Doug's other commitments.

Please let us know of your intention to attend, we are imagining about 25-30 people in attendance. Let us know if you have any suggestions about the content or the format.

Thanks,

-Jose et al.

Attendees

• We expect 25-30 attendees. Maximum is 40-45 attendees, due to the capacity of the rooms available. Please let us know if you plan to attend.

• Confirmed (21):
  • Doug Worsnop (ARI), Donna Sueper (ARI & Colorado), Manjula Canagaratna (ARI)
  • James Allan (Manchester), Niall Robinson (Manchester)
  • Qi Zhang (SUNY-Albany)
  • Jesse Kroll (MIT)
  • Pete DeCarlo (PSI)
  • Jose-Luis Jimenez (Colorado), Ingrid Ulbrich (Colorado), Carly Robinson (Colorado), Amber Ortega (Colorado), Mike Cubison (Colorado)
  • Steve Howell (U. Hawaii)
  • Taehyoung Lee (Colorado State), Laurie Mack (Colorado State)
  • Puneet Chhabra (Caltech), Jill Craven (Caltech)
  • Lea Hildebrandt (Carnegie Mellon)
  • Samara Carbone (FMI)
  • Qi Chen (Harvard)
  • Toshihide Hikida (Sanyu)

• Tentative (4):
  • Dara Salcedo (U Morelos)
  • Rami Alfarra (Manchester)
  • Delphine Farmer (Colorado)
  • Akinori Takami (NIES)

Some topics for discussion

• New features in Squirrel

• PIKA
  • Discuss features in the new version, including error bars
  • How to evaluate whether a fit is good enough for your purposes (large vs. small vs. tiny peaks, O/C vs N/C)
  • How to use mass accuracy to estimate uncertainty

• Basis of elemental analysis in APES (was very confusing in Users Meeting)

• Contributing spectra to HR database
  • Encourage users to give to Michael directly during meeting. Need peak shape function, sigma parameters, m/z cal.

• Users bring up doubts, examples of problems or unusual data and we discuss as a group

• Discuss suggestions from Users for short and long term improvements to the software

Logistics

• Directions to CIRES in Boulder
• On Sat & Sun we will meet in Ekeley E1B20
• On Mon-Wed we will meet on Hale 260
• We will provide plug strips for laptops. We hope to be able to provide wireless internet access through UCB-guest accounts.

Related Links

• ToF-AMS web page
• Squirrel Home Page
• Pika Home Page
• APES Wiki (Elemental Analysis of OA)
• AMS PMF Resources Page
• AMS Users Meetings
• High-resolution AMS database
• List of AMS papers
• AMS page at Aerodyne
• J-Group at CU-Boulder

To Do

• outlets for laptops
• Contact IT to see if we can pre-create ~30 UCB guest accounts