MOSAIC: A Satellite Constellation to Enable Groundbreaking Mars Climate System Science and Prepare for Human Exploration
Open Access
- 1 October 2021
- journal article
- research article
- Published by American Astronomical Society in The Planetary Science Journal
- Vol. 2 (5), 211
- https://doi.org/10.3847/psj/ac0538
Abstract
The Martian climate system has been revealed to rival the complexity of Earth's. Over the last 20 yr, a fragmented and incomplete picture has emerged of its structure and variability; we remain largely ignorant of many of the physical processes driving matter and energy flow between and within Mars' diverse climate domains. Mars Orbiters for Surface, Atmosphere, and Ionosphere Connections (MOSAIC) is a constellation of ten platforms focused on understanding these climate connections, with orbits and instruments tailored to observe the Martian climate system from three complementary perspectives. First, low-circular near-polar Sun-synchronous orbits (a large mothership and three smallsats spaced in local time) enable vertical profiling of wind, aerosols, water, and temperature, as well as mapping of surface and subsurface ice. Second, elliptical orbits sampling all of Mars' plasma regions enable multipoint measurements necessary to understand mass/energy transport and ion-driven escape, also enabling, with the polar orbiters, dense radio occultation coverage. Last, longitudinally spaced areostationary orbits enable synoptic views of the lower atmosphere necessary to understand global and mesoscale dynamics, global views of the hydrogen and oxygen exospheres, and upstream measurements of space weather conditions. MOSAIC will characterize climate system variability diurnally and seasonally, on meso-, regional, and global scales, targeting the shallow subsurface all the way out to the solar wind, making many first-of-their-kind measurements. Importantly, these measurements will also prepare for human exploration and habitation of Mars by providing water resource prospecting, operational forecasting of dust and radiation hazards, and ionospheric communication/positioning disruptions.Funding Information
- National Aeronautics and Space Administration (80NSSC20K0578)
This publication has 188 references indexed in Scilit:
- Pumping out the atmosphere of Mars through solar wind pressure pulsesGeophysical Research Letters, 2010
- Shallow radar (SHARAD) sounding observations of the Medusae Fossae Formation, MarsIcarus, 2009
- Yearly comparisons of the martian polar caps: 1999–2003 Mars Orbiter Camera observationsIcarus, 2005
- Nightglow in the Upper Atmosphere of Mars and Implications for Atmospheric TransportScience, 2005
- Formation of convective carbon dioxide clouds near the south pole of MarsJournal of Geophysical Research, 2003
- Two Mars years of clouds detected by the Mars Orbiter Laser AltimeterJournal of Geophysical Research, 2003
- Modeling the Martian dust cycle, 1. Representations of dust transport processesJournal of Geophysical Research, 2002
- Carbon dioxide snow storms during the polar night on MarsJournal of Geophysical Research, 2002
- Martian North Polar Cap Recession: 2000 Mars Orbiter Camera ObservationsIcarus, 2001
- Variability of Mars' North Polar Water Ice Cap I. Analysis of Mariner 9 and Viking Orbiter Imaging DataIcarus, 2000