Asset Details
Do you wish to reserve the book?
Mars Methane Sources in Northwestern Gale Crater Inferred From Back Trajectory Modeling
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Mars Methane Sources in Northwestern Gale Crater Inferred From Back Trajectory Modeling
Do you wish to request the book?
Mars Methane Sources in Northwestern Gale Crater Inferred From Back Trajectory Modeling
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Mars Methane Sources in Northwestern Gale Crater Inferred From Back Trajectory Modeling
2021
Overview
During its first seven years of operation, the Sample Analysis at Mars Tunable Laser Spectrometer (TLS) on board the Curiosity rover has detected seven methane spikes above a low background abundance in Gale crater. The methane spikes are likely sourced by surface emission within or around Gale crater. Here, we use inverse Lagrangian modeling techniques to identify upstream emission regions on the Martian surface for these methane spikes at an unprecedented spatial resolution. Inside Gale crater, the northwestern crater floor casts the strongest influence on the detections. Outside Gale crater, the upstream regions common to all the methane spikes extend toward the north. The contrasting results from two consecutive TLS methane measurements performed on the same sol point to an active emission site to the west or the southwest of the Curiosity rover on the northwestern crater floor. The observed spike magnitude and frequency also favor emission sites on the northwestern crater floor, unless there are fast methane removal mechanisms at work, or either the methane spikes of TLS or the non‐detections of ExoMars Trace Gas Orbiter cannot be trusted. Key Points Back trajectory analyses are performed for the methane spikes detected by the Mars Science Laboratory at Gale crater Upstream emission regions are mapped out at unprecedented spatial resolutions If the lifetime of methane is not overestimated, the methane spikes must be sourced by very nearby emission in northwestern Gale crater
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,American Geophysical Union (AGU)
Subject
/ Atmospheric Composition and Structure
/ Lasers
/ Mars
/ Methane
/ MSL
/ Planetary Atmospheres, Clouds, and Hazes
/ Planetary Mineralogy and Petrology
/ Planetary Sciences: Astrobiology
/ Planetary Sciences: Comets and Small Bodies
/ Planetary Sciences: Fluid Planets
/ Planetary Sciences: Solid Surface Planets
/ Sensors
/ TGO
/ TLS
/ Upstream
