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Earth Surface Mineral Dust Source Investigation: An Earth Science Imaging Spectroscopy Mission

Green, Robert O. and Mahowald, Natalie and Ung, Charlene and Thompson, David R. and Bator, Lori and Bennet, Matthew and Bernas, Michael and Blackway, Natalie and Bradley, Christine and Cha, Jeff and Clark, Pamela and Clark, Roger and Cloud, Deborah and Diaz, Ernesto and Ben Dor, Eyal and Duren, Riley and Eastwood, Michael and Ehlmann, Bethany L. and Fuentes, Lisa and Ginoux, Paul and Gross, Johannes and He, Yutao and Kalashnikova, Olga and Kert, William and Keymeulen, Didier and Klimesh, Matt and Ku, Daniel and Kwong-Fu, Helenann and Liggett, Elliott and Li, Longlie and Lundeen, Sarah and Makowski, Maciej D. and Mazer, Alan and Miller, Ron and Mouroulis, Pantazis and Oaida, Bogdan and Okin, Greg S. and Ortega, Alberto and Oyake, Amalaye and Nguyen, Hung and Pace, Theresa and Painter, Thomas H. and Pempejian, Jack and Garcia-Pando, Carlos Perez and Pham, Thang and Phillips, Benjamin and Pollock, Randy and Purcell, Richard and Realmuto, Vincent and Schoolcraft, Josh and Sen, Amit and Shin, Simon and Shaw, Lucas and Soriano, Manny and Swayze, Gregg and Thingvold, Erik and Vaid, Afsheen and Zan, Jason (2020) Earth Surface Mineral Dust Source Investigation: An Earth Science Imaging Spectroscopy Mission. In: 2020 IEEE Aerospace Conference. IEEE , Piscataway, NJ, pp. 1-15. ISBN 9781728127347.

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The Earth Surface Mineral Dust Source Investigation, EMIT, is planned to operate from the International Space Station starting no earlier than the fall of 2021. EMIT will use visible to short wavelength infrared imaging spectroscopy to determine the mineral composition of the arid land dust source regions of the Earth to advance our knowledge of the radiative forcing effect of these aerosols. Mineral dust emitted into the atmosphere under high wind conditions is an element of the Earth system with many impacts to the Earth's energy balance, atmosphere, surface, and oceans. The Earth's mineral dust cycle with source, transport, and deposition phases are studied with advanced Earth System Models. Because the chemical composition, optical and surface properties of soil particles vary strongly with the mineral composition of the source, these models require knowledge of surface soil mineral dust source composition to accurately understand dust impacts on the Earth system now and in the future. At present, compositional knowledge of the Earth's mineral dust source regions from existing data sets is uncertain as a result of limited measurements. EMIT will use spectroscopically-derived surface mineral composition to update the prescribed boundary conditions for state-of-the-art Earth System Models. The EMIT-initialized models will be used to investigate the impact of direct radiative forcing in the Earth system that depends strongly on the composition of the mineral dust aerosols emitted into the atmosphere. These new measurements and related products will be used to address the EMIT science objectives and made available to the science community for additional investigations. An overview of the EMIT science, development, and mission is presented in this paper.

Item Type:Book Section
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Green, Robert O.0000-0001-9447-3076
Thompson, David R.0000-0003-1100-7550
Ehlmann, Bethany L.0000-0002-2745-3240
Additional Information:© 2020 IEEE. The authors gratefully acknowledge NASA and the Earth System Science Pathfinder program office as well as the broad set of contributors to the EMIT mission. A portion of this work was carried out at the Jet Propulsion Laboratory / California Institute of Technology, Pasadena, California, under contract with the National Aeronautics and Space Administration.
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Record Number:CaltechAUTHORS:20200831-122814684
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Official Citation:R. O. Green et al., "The Earth Surface Mineral Dust Source Investigation: An Earth Science Imaging Spectroscopy Mission," 2020 IEEE Aerospace Conference, Big Sky, MT, USA, 2020, pp. 1-15, doi: 10.1109/AERO47225.2020.9172731
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105171
Deposited By: Tony Diaz
Deposited On:08 Sep 2020 18:48
Last Modified:16 Nov 2021 18:40

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