G001-15
The NASA Mass Change Designated Observable Study: Status Update

Monday, 7 December 2020: 04:42
Virtual
David N Wiese1, Bernard J Bienstock2, Dave Bearden2, Carmen Boening3, Kelley Elizabeth Case4, Jon Chrone5, Scott Horner6,7, Bryant D Loomis8, Scott B Luthcke9, Matthew Rodell10, Jeanne M Sauber8, Lucia Tsaoussi11, Frank Webb12 and Victor Zlotnicki3,13, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (2)California Institute of Technology, Jet Propulsion Laboratory, Pasadena, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (4)California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA, United States, (5)NASA Langley Research Center, Hampton, VA, United States, (6)NASA Ames Research Center, Moffett Field, CA, United States, (7)Self Employed, Sunnyvale, CA, United States, (8)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (9)NASA Goddard Space Flight Center, Geodesy and Geophysics Lab, Greenbelt, MD, United States, (10)NASA GSFC HSL, Greenbelt, MD, United States, (11)NASA Headquarters, Washington, DC, United States, (12)JPL, Pasadena, CA, United States, (13)Jet Propulsion Laboratory, Pasadena, CA, United States
Abstract:
The 2017-2027 US National Academy of Sciences Decadal Survey for Earth Science and Applications from Space classified mass change as one of five designated observables having the highest priority in terms of Earth observations required to better understand the Earth system over the next decade. In response to this designation, NASA initiated multi-center studies with an overarching goal of defining observing system architectures for each designated observable. Here, we discuss the progress made and future plans for the Mass Change Designated Observable study. Progress includes the development of a Science and Applications Traceability Matrix (SATM), the definition of three different architectural classes that have potential to be responsive to the designated science objectives, and a framework to quantitatively link the performance of specific architectures to the SATM. We will describe the Value Framework that has been developed to assess the value of each architecture in terms of science return, cost, risk, and technical maturity. Results assessing the value of 50+ architecture variants will be shown and discussed, and high value observing systems will be identified. Finally, the current status of the study process, and future plans will be discussed.
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