NASA Postdoctoral Program Opportunities

Trace gas retrievals from ground, air and satellite remote sensing

Opportunity ID	19325
Opportunity URL	https://npp.usra.edu/opportunities/details/?ro=19325
Center	Ames Research Center Moffett Field, CA 94035
Location	location of advisor
Field of Science	Earth Science
Advisors	Meloe Kacenelenbogen, Primary Advisor 650-604-3374 meloe.s.kacenelenbogen@nasa.gov Stephen Broccardo 650-604-5404 stephen.p.broccardo@nasa.gov Thomas Hanisco 301-614-6598 thomas.hanisco@nasa.gov
Citizenship Requirement	U.S. Citizens Accepted Lawful Permanent Residents Accepted Foreign Nationals Accepted - Applications with citizens from Designated Countries will not be accepted at this time, unless they are Legal Permanent Residents of the United States. A complete list of Designated Countries can be found at: https://www.nasa.gov/oiir/export-control.
Description	Applicants are invited for a post-doctoral position within the Sunphotometer/Satellite (sunsat) team at the NASA-Ames Research Center in Moffett Field, CA (https://airbornescience.nasa.gov/sunsat). The team develops and operates airborne sunphotometers. The operational instrument is hyperspectral (4STAR: Spectrometers for Sky-Scanning, Sun-Tracking Atmospheric Research), and is used to make observations of trace-gas integrated column density, as well as aerosol and cloud properties by measuring the direct and diffuse solar radiation components. 4STAR data acquired during national and international airborne field campaigns (e.g., TCAP, SEAC4RS, ARISE, NAAMES, KORUS-AQ, ORACLES) is used in synergy with space-borne (e.g. MODIS, OMI, CALIPSO, POLDER), ground-based (e.g., NASA Ames' polarized AERONET, https://aeronet.gsfc.nasa.gov/, and Pandora, https://pandora.gsfc.nasa.gov/index.html, instruments) and/ or chemical transport and radiative transfer models. We are looking for a candidate that has expertise in the use of hyperspectral trace gas retrievals (absorption spectroscopy) to quantify atmospheric column densities of e.g., NO2, O3, H2O, SO2, HCHO. The candidate will be co-advised by two key team members: one from the NASA Ames Sunphotometer/Satellite team and one from the NASA GSFC Pandora team. The candidate will be a key member of both ARC and GSFC teams: placing the sunsat team at the forefront of airborne hyperspectral sunphotometry for direct-sun trace gas measurements in upcoming airborne field campaigns and connecting the two teams, building similar and cohesive trace gas retrieval capabilities for 4STAR and Pandora, and complementing ground- with airborne measurements of trace gas integrated column.

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