 |
| Titel |
Mid-latitude Glaciers on Mars: Estimating water ice volumes using simple ice-flow models and inverse methods |
| VerfasserIn |
Nanna B. Karlsson, Louise S. Schmidt, Christine S. Hvidberg |
| Konferenz |
EGU General Assembly 2015
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250111497
|
| Publikation (Nr.) |
 EGU/EGU2015-11626.pdf |
|
|
|
|
|
| Zusammenfassung |
| Numerous glacier-like forms have been identified at the mid-latitudes of Mars, and within recent years the acquisition of radar sounding data has revealed that the features are chiefly composed of water ice. The glacier-like forms are probably several million years old and currently covered in a layer of dust, that inhibit mass exchange with the atmosphere.
Here we apply simple ice-flow models and inverse methods to estimate the ice thickness and volume present at the mid-latitudes of the planet. We find that our method can estimate ice volume with an uncertainty of 25% when compared to observations from radar. Furthermore, we find that the yield stress at the ice-bedrock interface is comparable to that observed for terrestrial glaciers, indicating a similarity between the governing physical processes. |
|
|
|
|
|
|