Sarah Wroblewski is a 2005 graduate of the University of Massachusetts Lowell where she earned her bachelor's degree in Atmospheric Science  At UML Sarah was a four year varsity athlete on the women's soccer team; 2000-2004 and was the captain of the team during the 2003-2004 season.  Sarah currently works at Weather Services International in Andover, MA and is a freelance meteorologist for WBZ-TV News. Sarah is a member of the American Meteorological Society (AMS).

Below is a short description of the research, presentations, publications she made as a UML student.

Research


Theoretical line shape calculations to determine the half-width and line shift for methane transitions in the Earth’s atmosphere in support of measurement campaigns on NASA’s Earth Observing System (EOS) satellites Aqua and Aura.   In particular, the Atmospheric Infrared Sounder (AIRS) on Aqua, and the Tropospheric Emission Spectrometer (TES) and the High Resolution Dynamics Limb Sounder (HIRDLS) on AURA will measure both H2O and CH4.  The calculations are for the systems CH4-N2 and CH4-O2. 

The spectral region covered by the instruments is 3.2 to 17.76 mm (AIRS, TES, HIRDLS), here we focus on the range 1000 to 3200 cm-1 for methane which contains 23 951 transitions.  For methane the dominant bands are the 00011001ß00000000 (10-17), 00000111ß00000000 (10-18), 01100001ß00000000 (10-19), and 01100112ß00000000 (10-19) bands, where the intensity units in parenthesis are in HITRAN units.  Calculations will be made for all strong and intermediate intensity transitions.

Sarah has done much work studying different sets of wavefunctions for methane that were obtained from the University of Dijon. The wavefunctions were from both isolated and interacting band models. Sarah also did a considerable amout of work on adjusting the CH4-N2 intermolecular atom-atom potential.

For a short description of the CRB formalism  click here

Presentations

  • April 25, 2006

Danielle Niles, Sarah Wroblewski and Robert R. Gamache, "ADJUSTING THE INTERMOLECULAR POTENTIAL FOR THE CH4-N2 SYSTEM," The Ninth Annual Student Research Symposium, University of Massachusetts Lowell, Lowell, MA

  • April 29, 2008

Caitlin M. Humphrey, Robert R. Gamache, Bobby Antony, Danielle L. Niles, Sarah B. Wroblewski, Tony Gabard , "N2-, O2- and Air-broadened Half-widths and Line Shifts for Transitions in the ?3 Band of Methane in the 2726-3200 cm-1 Spectral Region," the 11th Annual Student Research Symposium, The University of Massachusetts Lowell, April 29, 2008

  • June 17, 2008

Robert R. Gamache, Bobby Antony, Danielle L. Niles, Sarah B. Wroblewski, Caitlin M. Humphrey, Tony Gabard, "Line Shape Parameters for ?3 Transitions of 12CH4," the 19th International Conference on Spectral Line Shapes, Valladolid, Spain, June 15-20, 2008

  • June 23, 2008

Robert R. Gamache, Bobby Antony, Danielle L. Niles, Sarah B. Wroblewski, Caitlin M. Humphrey, Tony Gabard , "Half-widths and Line Shifts for Transitions in the ?3 Band of Methane in the 2726-3200 cm-1 Spectral Region for Atmospheric Applications," the 10th Biennial HITRAN Database Conference, Harvard-Smithsonian Center for Astrophysics, June 22-24, 2008

Publications

Bobby K. Antony, Danielle L. Niles, Sarah B. Wroblewski, Caitlin M. Humphrey, Tony Gabard and Robert R. Gamache , "N2-, O2- and air-broadened half-widths and line shifts for transitions in the v3 band of methane in the 2726-3200 cm-1 spectral region," J. Mol. Spectrosc., 251, 268-281, 2008. PDF of article or JMS archive