Physics Colloquium - Matt DeLand

This is a past event.

Thursday, April 5, 2018 4 pm to 5 pm

This is a past event.

Small Satellite Instruments for Stratospheric Aerosols at NASA GSFC

Abstract:

Matthew DeLand (SSAI), Peter Colarco (NASA/GSFC), Matthew Kowalewski (USRA/GESTAR), Luis Ramos-Izquierdo (NASA/GSFC), Nick Gorkavyi (SSAI)

Aerosol particles in the stratosphere (~15-25 km altitude), produced by volcanic eruptions and anthropogenic emissions, can offset some of the warming effects caused by greenhouse gases.  These aerosols are currently monitored using measurements from the Ozone Mapping and Profiling Suite (OMPS) Limb Profiler (LP) instrument on the Suomi NPP satellite.  We are developing a compact version of the OMPS LP sensor at NASA Goddard Space Flight Center called Multi-Angle Stratospheric Aerosol Radiometer (MASTAR) in order to improve the sensitivity and spatial coverage of these aerosol data.  This project is using a NASA Instrument Incubator Program (IIP) grant, and is designed for a 3U Cubesat satellite bus.  The MASTAR instrument will make limb viewing measurements of the atmosphere in multiple directions simultaneously, and uses selected wavelengths in the visible and near-IR (670 nm, 850 nm) to reduce size and cost.  Additional measurements are made at 350 nm to validate satellite pointing, which is a critical parameter for limb measurements.  This presentation will discuss the scientific benefits of MASTAR and the status of the project.

Bio:

Matt DeLand received his B.A. in Physics from Washington University (St. Louis), and an M.A. in Physics from Johns Hopkins University.  He has been supporting NASA Goddard Space Flight Center in Greenbelt, Maryland as a contractor for various companies since 1989.  His main focus has been on the long-term characterization of satellite instruments that measure stratospheric and total column ozone (SBUV/2, TOMS, OMI, OMPS).  He has also used data from these instruments to do research on solar UV irradiance variability and polar mesospheric clouds.  His latest project involves the development of a Cubesat-scale instrument to measure stratospheric aerosols.

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