Dr. Kelly Chance

Smithsonian Astrophysical Observatory
Harvard-Smithsonian Center for
Astrophysics Cambridge, MA
Reino Unido

• Resumen curricular:

Dr. Kelly Chance has been a recognized leader in atmospheric science and particularly in the area of space based UV/visible spectroscopy for over 25 years. Examples of his leadership role include:

• Dr. Chance and colleagues from the Max Planck Institute for Chemistry (D. Perner, J. Burrows, W. Schneider, P. Crutzen) first proposed space-based UV/visible spectroscopy as a method to measure the troposphere (gases, clouds, and aerosols) in 1985.
• Chaired Scientific Advisory subgroup for algorithm development and data usage for the SCIAMACHY project
• Chair of the Data and Algorithm Subgroup (and USA representative) for the ESA GOME project
• U.S. Member of the ESA Ozone Monitoring Instrument User Advisory group, developing mission objectives, user requirements, and system requirements for the ozone monitoring instrument (now GOME-2) for Metop.
• Serves as a U.S. Science Team member on the OMI on NASA Aura, with responsibility for H2CO, C2H2O2, BrO, and chlorine dioxide (OClO) data products.

Dr. Chance has made numerous scientific contributions in Atmospheric Science as evidenced by his more than 150 publications in the field. His UV/visible studies in proposing SCIAMACHY included measurements of O3, NO₂, SO₂, H₂CO, H₂O, BrO, and OClO (IO and C2H₂O₂ have been added, as first measurements from space by SAO; SCIAMACHY infrared capability includes CO₂, CO, CH₄, and N₂O). Dr. Chance performed radiative transfer and fitting studies to determine sensitivities and develop algorithms for SCIAMACHY, and later for GOME and OMI. He invented tropospheric ozone retrievals from nadir UV measurements. He developed most of the algorithm physics for UV/visible gas measurements from space. This includes an improved high-resolution solar reference spectrum, the method for wavelength and spectral resolution calibration using this solar reference (adapted from the SAO galactic redshift measurement program), quantum-mechanical formulation and quantitative implementation of the Ring effect (rotational Raman scattering by air molecules), and correction for spectral undersampling (lack of Nyquist sampling) of spectra. These developments enable precision gas measurements to be made from space in the UV/visible; they are used in scientific data products and in operational processing on the GOME instruments, SCIAMACHY, OMI, and OMPS.

[Español]
El Dr. Chance es Profesor Investigador en el Harvard-Smithsonian Center for Astrophysics. Es un reconocido líder en las ciencias atmosféricas, particularmente en el área de espectroscopía por más de 25 años. Su contribución científica en las ciencias atmosféricas se evidencia en las más de 150 publicaciones, en su colaboración en instituciones como el Instituto Max Planck  y ser miembro de grupos de investigación de reconocido prestigio en el monitoreo y desarrollo de algoritmos en el área de la espectroscopía.