Formative Upper-Flow Regimes for Bedforms in Submarine Environments
Event details
| Date | 17.04.2015 |
| Hour | 15:15 › 16:15 |
| Speaker | Prof. Svetlana Kostic, Computational Science Research Center, San Diego State University, USA |
| Location | |
| Category | Conferences - Seminars |
Our knowledge on submarine upper-flow regime bedforms, which are quite common on the ocean floor of Earth, is very limited. There is as yet no complete phase diagram that can be used to quantify their formative flow regimes and characteristics. I will discuss how physically-based numerical modeling in combination with the field information can be used to: a) examine the hydrodynamic response of a bed consisting of fine-grained sediment waves to a wide span of turbidity current conditions; b) demonstrate that fine-grained sediment waves in various submarine environments most likely form and evolve as upper-flow regime bedforms, i.e., cyclic steps, transitional bedforms between cyclic steps and antidunes, or antidunes; and c) provide a basis for the first complete phase diagram of deep-sea bedforms. I will also discuss how our knowledge on submarine upper-flow regime bedforms on Earth can be used to test the Mars ocean hypothesis.
Practical information
- General public
- Free
Organizer
- Prof. Anton Schleiss and Dr. Mário Franca
Contact
- Mário Franca