On the dynamics and morphology of extensive tidal mudflats: Integrating remote sensing data with an inundation model of Cook Inlet, Alaska |
| |
| Authors: | Tal Ezer Hua Liu |
| |
| Institution: | (1) Center for Coastal Physical Oceanography, Old Dominion University, 4111 Monarch Way, Norfolk, VA 23508, USA;(2) Department of Political Science and Geography, Old Dominion University, Norfolk, VA 23529, USA |
| |
| Abstract: | A new method of integrating satellite remote sensing data and inundation models allows the mapping of extensive tidal mudflats
in a sub-Arctic estuary, Cook Inlet (CI), Alaska. The rapid movement of the shorelines in CI due to the large tides (~10 m
range) is detected from a series of Landsat imagery taken at different tidal stages, whereas GIS tools are used to identify
the water coverage in each satellite image and to extract the coordinates of the shoreline. Then, water level along the shoreline
for each satellite image is calculated from the observed water level at Anchorage and the statistics of an inundation model.
Several applications of the analysis are demonstrated: 1. studying the dynamics of a tidal bore and the flood/ebb processes,
2. identifying climatic changes in mudflats morphology, and 3. mapping previously unobserved mudflat topographies in order
to improve inundation models. The method can be used in other regions to evaluate models and improve predictions of catastrophic
floods such as those associated with hurricane storm surges and tsunamis. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
