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Title Creator Institution Body Date Last Updated Resource Type Coverage Related Resources Contributors Keywords Rights management Data & Papers Related Wikis
Experimental alluvial-river and landsliding response to base-level fall Beaulieu, Olivia P., Wickert, Andrew D., Witte, Elizabeth D., Tofelde, Stefanie University of Minnesota, Saint Anthony Falls Laboratory
We observed the incisional response of an alluvial river to base-level fall. We conducted the experiment in a 3.9 × 2.4 × 0.4 m box that we filled with uniform 0.140±0.04 mm sand. We dropped base level by lowering the elevation of an "ocean" pool at the river outlet. As the initial condition, we cut a 10±2 cm wide channel to a steadily increasing depth, from 3±0.5 cm at the inlet, where we supplied water and sediment, to 10±1 cm at the outlet. Input water and sediment discharge were 0.1 L/s and 0.0022 L/s (including pore space), respectively. As base level fell, the river incised and migrated laterally, forming a valley with abandoned terrace surfaces and walls that failed in mass-wasting events as they were undercut. We include a control case with no base-level fall, as well as experiments with 25 mm/hr, 50 mm/hr, 200 mm/hr, 300 mm/hr, and 400 mm/hr of base-level fall. We supply georeferenced overhead photos (0.89 mm resolution, every 20 seconds), digital elevation models (DEMs, 1 mm horizontal resolution, every 15–30 minutes), videos generated from the overhead photos, mapped landslides in GIS vector area (polygon) format, and landslide attributes. Relevant code to process and plot the data, as well as further information on grain size, is available from GitHub and Zenodo.
 
The data set contains the following items. All files with time-dependent data contain 7-digit time stamps that provide the number of seconds since the start of each experiment.
  • Georeferenced overhead photos in GeoTIFF format within a Tape ARchive (tar).
  • Digital elevation models in GeoTIFF format within a GZipped Tape ARchive (tar.gz).
  • Landslide GIS vector areas (polygons) organized by experiment and time as ESRI Shapefiles stored within a GZipped Tape ARchive (tar.gz). Each subfolder is labeled <TIMESTAMP>.shx (the ".shx" is spurious) and contains the shp, shx, dbf, and prj files associated with each set of landslides at each time in the experiment.
  • Landslide attributes as comma-separated variables (csv) files for each experiments, stored within an XZipped Tape ARchive (tar.xz). Each CSV includes (in order): the x and y positions of the landslide center, the width (y-directed – i.e., cross-valley – distance from one end to the other) and length (x-directed – i.e., down-valley – distance from one end to the other) of the landslide, mean landslide depth, landslide area measured in the x-y (i.e., horizontal) plane, the semi-major and semi-minor axes of an ellipse fit to the landslide, the angle from the semi-major axis to the "horizontal" (confusingly meaning the x orientation, since I was thinking in x-y space while writing the analysis code), landslide volume calculated by subtracting the valley-bottom elevation from that of the DEM surface in the landslide area, the runtime at which the landslide occurs, and the wait time between landslide events.
  • Movies at 15 fps (5 minutes experiment time per 1 second watch time) for the full series of images from each experiment, stored within an XZipped Tape ARchive (tar.xz). I did not adjust for occasional skipped images (e.g., around the time of the laser scans), which will cause minor deviations from the 5-minutes-runtime-to-1-second-video conversion.
  • Schematic image (png) of a georeferenced overhead photo (ImgSec_0043168) atop a shaded-relief map (DEM_fullextent_0043188) with hatched landslide locations from runtimes after 0043168. Shadows running along the x axis show zones near the outlet where the basin walls prevented the angled laser-topography scanner from casting light on the the valley bottom. All images are from the 25 mm/hr base-level fall experiment.
Friday, April 24, 2020 dataset
Dates Collected: 
Monday, September 19, 2016 to Wednesday, March 15, 2017
Name: 
Andrew D. Wickert
Institution: 
University of Minnesota
contributor_email: 
fluvial terraces, landsliding, base level, channel incision CC-BY-SA 3.0 St. Anthony Falls Laboratory at The University of Minnesota
Floc growth rate and size as a function of sediment concentration Kyle Strom Virginia Tech

All data in this repository is associated with the following paper:

Data from the paper: Tran, D. and Strom, K. (2017). Suspended clays and silts: Are they independent or dependent fractions when it comes to settling in a turbulent suspension? Continental Shelf Research, 138, 81-94, doi: 10.1016/j.csr.2017.02.011.

Tuesday, May 22, 2018 dataset
Location: 

Geolocation is 37.2301063, -80.42421339999999

Dates Collected: 
Tuesday, May 22, 2018
Name: 
Kyle Strom
Institution: 
Virginia Tech
contributor_email: 
Flocculation, Mud CC-BY Virginia Tech
TDB_15_1, Tulane Delta Basin Yu, Liz, Straub, Kyle M. Tulane University

TDB-15-1: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.17 l/s), sediment (0.00017 l/s), and long term sea-level rise rate (0.25 mm/hr). Experiment run time was 1170 hr. Experiment used a strongly cohesive sediment that had a wide grain size distribution with a median diameter of 65 microns. Superimposed on the long term sea-level rise were sea-level cycles. The experiment was split into 2 stages. The first stage had sea-level cycles with periods of 98 hrs and amplitudes of 3.06 mm. The second stage had sea-level cycles with periods of 24.5 hrs and amplitudes of 12.25 mm. Experiment performed to explore interaction of autogenic sediment transport with sea-level cycles and resulting stratigraphy with topography monitored every 1 hour of run time.

Yu, L., and Straub, K.M., 2017, TDB_15_1, SEAD, http://doi.org/10.5967/M00V89W1.

Friday, August 18, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Friday, August 18, 2017
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, flume CC0 Tulane University
TDB_14_2, Tulane Delta Basin Li, Qi, Straub, Kyle M. Tulane University

TDB-14-2: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.17 l/s), sediment (0.00017 l/s), and long term sea-level rise rate (0.25 mm/hr). Experiment run time was 1170 hr. Experiment used a strongly cohesive sediment that had a wide grain size distribution with a median diameter of 65 microns. Superimposed on the long term sea-level rise were sea-level cycles. The experiment was split into 2 stages. The first stage had sea-level cycles with periods of 24.5 hrs and amplitudes of 6.125 mm. The second stage had sea-level cycles with periods of 24.5 hrs and amplitudes of 3.06 mm. Experiment performed to explore interaction of autogenic sediment transport with sea-level cycles and resulting stratigraphy with topography monitored every 1 hour of run time.

Li., Q., and Straub, K.M., 2017, TDB_14_2, SEAD, http://doi.org/10.5967/M0RF5S4H.

Friday, August 18, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Friday, August 18, 2017
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, flume CC0 Tulane University
TDB_14_1, Tulane Delta Basin Li, Qi, Straub, Kyle M. Tulane University

TDB-14-1: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.17 l/s), sediment (0.00017 l/s), and long term sea-level rise rate (0.25 mm/hr). Experiment run time was 630 hr. Experiment used a strongly cohesive sediment that had a wide grain size distribution with a median diameter of 65 microns. Superimposed on the long term sea-level rise were sea-level cycles with periods of 98 hrs and amplitudes of 24.5 mm. Experiment performed to explore interaction of autogenic sediment transport with sea-level cycles and resulting stratigraphy with topography monitored every 1 hour of run time.

Li., Q., and Straub, K.M., 2017, TDB_14_1, SEAD, http://doi.org/10.5967/M0MP51D5.

Friday, August 18, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Friday, August 18, 2017
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, flume CC0 Tulane University
TDB_13_1, Tulane Delta Basin Li, Qi, Straub, Kyle M. Tulane University

TDB-13-1: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.17 l/s), sediment (0.00017 l/s), and sea-level rise rate (0.25 mm/hr). Experiment run time was 1000 hr. Experiment was divided into 2 stages. The first stage used a weakly cohesive sediment while the second stage used a moderately cohesive sediment. Both sediment mixtures had wide grain size distributions with a median diameter of 65 microns. Experiment performed to explore autogenic sediment transport and stratigraphy with topography monitored every 1 hour of run time.

Li, Q., and Straub, K.M., 2017, TDB_13_1, SEAD, http://doi.org/10.5967/M07D2S7Q.

Friday, August 18, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Friday, August 18, 2017
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, flume CC0 Tulane University
TDB_12_1, Tulane Delta Basin Li, Qi, Straub, Kyle M. Tulane University

TDB-12-1: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.17 l/s), sediment (0.00017 l/s), and sea-level rise rate 0.25 (mm/hr). Experiment run time was 1285 hr. Experiment used a strongly cohesive sediment that had a wide grain size distribution with a median diameter of 65 microns. Experiment performed to explore autogenic sediment transport and stratigraphy with topography monitored every 1 hour of run time.

Li, Q., and Straub, K.M., 2017, TDB_12_1, SEAD, http://doi.org/10.5967/M03N21GX.

Friday, August 18, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Friday, August 18, 2017
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, flume CC0 Tulane University
TDB-11-1, Tulane Delta Basin Wang, Yinan, Straub, Kyle M. Tulane University

TDB-11-1: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.902 l/s), sediment (0.011 l/s), and sea-level rise rate 5 mm/hr). Experiment run time was 77.2 hr. Experiment used non-cohesive sediment that was 70% by volume well sorted quartz sand with a median diameter of 110 microns and 30% by volume crushed coal with a median diameter of 400 microns. Experiment performed to explore autogenic sediment transport and stratigraphy with topography monitored every 2 minutes of run time.

Wang, Y., and Straub, K.M., 2017, TDB-11-1, SEAD, http://doi.org/10.5967/M0D50K3T.

Monday, August 7, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Wednesday, July 6, 2011 to Sunday, January 15, 2012
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, Conveyor belt flume CC0 Tulane University
TDB-10-2, Tulane Delta Basin Wang, Yinan, Straub, Kyle M. Tulane University

TDB-10-2: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.902 l/s), sediment (0.022 l/s), and sea-level rise rate 10 mm/hr). Experiment run time was 39.3 hr. Experiment used non-cohesive sediment that was 70% by volume well sorted quartz sand with a median diameter of 110 microns and 30% by volume crushed coal with a median diameter of 400 microns. Experiment performed to explore autogenic sediment transport and stratigraphy with topography monitored every 2 minutes of run time.

Wang, Y., and Straub, K.M., 2017, TDB-10-2, SEAD, http://doi.org/10.5967/M0W37TFH.

Monday, August 7, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Monday, December 20, 2010 to Friday, March 18, 2011
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, flume CC0 Tulane University
TDB-10-1, Tulane Delta Basin Wang, Yinan, Straub, Kyle M. Tulane University

TDB-10-1: Fan-delta experiment performed in Tulane University Delta Basin. Experiment evolved under constant forcings of water (0.451 l/s), sediment (0.011 l/s), and sea-level rise rate 5 mm/hr). Experiment run time was 78.2 hr. Experiment used non-cohesive sediment that was 70% by volume well sorted quartz sand with a median diameter of 110 microns and 30% by volume crushed coal with a median diameter of 400 microns. Experiment performed to explore autogenic sediment transport and stratigraphy with topography monitored every 2 minutes of run time.

Wang, Y., and Straub, K.M, 2017, TDB-10-1, SEAD, http://doi.org/10.5967/M0HX19TT.

Monday, August 7, 2017 dataset
Location: 

Geolocation is 29.9403477, -90.12072790000002

Dates Collected: 
Tuesday, August 5, 2008 to Monday, September 22, 2008
Name: 
Straub, Kyle M.
Institution: 
Tulane University
contributor_email: 
experiment, delta, flume CC0 Tulane University
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