Special Issue on Amazonian Mars: Climate & Processes
• 大类 : 地学天文 - 4区
• 小类 : 天文与天体物理 - 4区
Papers are solicited which describe the climate history as well as geological and environmental processes that pertain to the Amazonian period of Mars’ history which includes the present-day. The Amazonian period encompases the most recent 3 billion years of Mars history, which has strongly shaped the evolution of the surface that we observe. On average, the Amazonian climate was dryer and cooler than the climate of ancient Mars; however, atmospheric, chemical, and surface processes continue to shape the martian landscape. Understanding the Amazonian climate is critical to linking present-day observations of the atmosphere, surface/subsurface volatile reservoirs, and related landforms to models of Mars’ present, recent past, and ancient climates. As our observation baseline lengthens and our ability to interpret surface geomorphic and spectral features improves, our ability to link modern surface and atmospheric processes to features of the Amazonian climate improves as well. Additionally, observations of Mars’ present-day climate lead to more constrained and refined climate models, which can then be used to connect relict landforms on the surface to environmental conditions in the past. The papers presented in this special issue will outline recent results that advance our understanding of the Amazonian Climate, as well as reviews of our current understanding of key cycles and trends through the Amazonian that have left geologic and atmospheric records. In addition, as we prepare for the next Planetary Science Decadal Survey, this special issue will highlight research that makes the case for the continued exploration of Amazonian-age landforms and present-day climate and environmental processes on Mars; such results are especially timely as many new discoveries have occurred since the writing of the current Planetary Science Decadal Survey (released in 2011), that have altered our interpretation of the Amazonian Climate.