A multi-proxy assessment of terrace formation in the lower Trinity River valley, Texas

Hassenruck-Gudipati, Hima J.; Ellis, Thaddeus; Goudge, Timothy A.; Mohrig, David

doi:https://doi.org/10.5194/esurf-10-635-2022

Articles | Volume 10, issue 3

https://doi.org/10.5194/esurf-10-635-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/esurf-10-635-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 10, issue 3

Research article

|

28 Jun 2022

Research article |

| 28 Jun 2022

A multi-proxy assessment of terrace formation in the lower Trinity River valley, Texas

Hima J. Hassenruck-Gudipati, Thaddeus Ellis, Timothy A. Goudge, and David Mohrig

Supplement

https://doi.org/10.5194/esurf-10-635-2022-supplement

Data sets

Jefferson, Liberty, and Chambers Counties Lidar Strategic Mapping Program (StratMap) https://data.tnris.org/collection/12342f12-2d74-44c4-9f00-a5c12ac2659c

East Texas Lidar Strategic Mapping Program (StratMap) https://data.tnris.org/collection/f09f36b9-12b1-4c88-bccb-017afa9bc3d8

Upper Coast Lidar Strategic Mapping Program (StratMap) https://data.tnris.org/collection/b5bd2b96-8ba5-4dc6-ba88-d88133eb6643

FEMA 2011 1m Liberty Lidar FEMA https://data.tnris.org/collection?c=2407d7a6-c33a-4095-915d-ac464293ef50#8.85/30.188/-94.875

Model code and software

Figure generating code Hima Hassenruck-Gudipati https://doi.org/10.5281/zenodo.6620600

Short summary

During the late Pleistocene, the incision of the Trinity River valley left behind terraces. Elevation data and measurements of abandoned channels preserved on terraces are used to evaluate how terraces formed. We find a transition in the style of terraces with age from those associated with external environmental forcings to those produced by internal river migration changes. This result shows the importance of several indicators (i.e., channel bends, elevations) in determining terrace form.