About this Dataset

Data From: Sediment Transport And Bed Topography For Realistic Unsteady Flow Hydrographs Of Varying Length In A Laboratory Flume

This is the dataset that was used to make the figures for the publication entitled "Sediment transport and bed topography for realistic unsteady flow hydrographs of varying length in a laboratory flume."

The citation for the publication is: Wren, D. G., Kuhnle, R. A., McAlpin, T. O., Langendoen, E. L. Sediment transport and bed topography for realistic unsteady flow hydrographs of varying length in a laboratory flume. Journal of Hydraulic Engineering. 10.1061/JHEND8/HYENG-13769

How the dataset was generated: Experiments were conducted at the USDA-ARS National Sedimentation Laboratory in a 30-meters long x 1.22-meters wide x 0.61-meter-deep flume channel with a frequency-controlled pump motor and adjustable slope. The sand for the bed was purchased from a local source and had a median particle size of 0.43 mm. The bed load transport rate was measured by a Sedflux system that operated at 1 Hz (Hertz, cycles per second) using two drums suspended from load cells over 1.2 meters wide by 0.57 meters long sediment trap that was 28.5 meters from the channel origin. The mass of sand accumulated in the drums was recorded continuously, and the drums were dumped after the mass of sediment reached 30 kilograms. After leaving the drums, the sand particles were circulated through a 0.152-meter diameter pipeline and re-entered the flume at the upstream end. Material that bypassed the trap entered the main return pipe and was sampled from the center of the return pipe just downstream of the pump impellor using a 10.6-millimeter diameter sampling nozzle. Flow velocity into the nozzle was matched to the mean return line flow velocity to avoid biasing the concentration measurements. Discharge in the sampling line was checked by measuring the mass of water accumulated over time. Sediment-laden water was passed through a 0.062 mm sieve that retained sand particles and allowed the water to return to the flume channel. The mean sediment concentration from the physical samples was used to calculate the load that bypassed the Sedflux system. Bed surface elevations were measured acoustically at a rate of 10 Hertz using 32 transducers with an acoustic frequency of 5-million cycles per second, fired sequentially. The transducers were spaced at 3.7-centimeter intervals in a PVC bar with a blunt face and narrow trailing edge to minimize flow separation and drag. The transducers were held at a constant distance from the bottom of the flume and were always in contact with the water surface. The range data measured in the experiments was subtracted from the measured distance to the flume bottom to result in bed elevations. The working section of the flume, which took 3.85 minutes to scan, extended from 7.7 meters to 22.7 meters from the origin at the flume headbox. Position data recorded along with the acoustic range data was used to assign streamwise positions relative to the flume origin.

Why the dataset was generated: Relative to the research into sediment transport in unsteady flows for gravel and gravel/sand mixtures, less research has focused on sand-bedded channels and the evolution of sand bedforms in response to changing flows. Even less research has combined sand load with detailed topographic measurements to arrive at a comprehensive picture of the adjustment processes for topography and transport rate caused by unsteady flow conditions. Additional research is needed to provide the data necessary for investigating relationships between unsteady flow rates, sediment transport, and bed topography. The dataset expands on previous research into sediment transport and bed topography in unsteady flows by having detailed, real-time measurements of bed topography over the width of a 15-m section of a laboratory flume, continuous measurements of sediment transport rate throughout the experiments, and continuous measurements of water-surface slope at 10 points along the test section. These measurements allowed for interactions between changing flow rates, bed topography, water surface slope, and sediment transport to be evaluated before, during, and after the flow hydrographs. The results include detailed analysis of data collected during non-symmetric flow hydrographs of 1-, 2-, 3-, 4-, 5-, and 6-hour duration over a sand bed in a laboratory flume at the USDA-ARS National Sedimentation Laboratory.

Data resources: Each file contains the data used to generate the figure corresponding to the figure number in the filename for the publication (to be updated with accepted and published): Wren, D. G., Kuhnle, R. A., McAlpin, T. O., Langendoen, E. L. Sediment transport and bed topography for realistic unsteady flow hydrographs of varying length in a laboratory flume. Journal of Hydraulic Engineering. DOI:10.1061/JHEND8/HYENG-13769.

CSV variable output from Figure_1.csv CSV variable output from Figure_2.csv CSV variable output from Figure_3.csv CSV variable output from Figure_4.csv CSV variable output from Figure_5.csv CSV variable output from Figure_6.csv CSV variable output from Figure_7.csv CSV variable output from Figure_8.csv CSV variable output from Figure_9.csv CSV variable output from Figure_10.csv CSV variable output from Figure_11.csv CSV variable output from Figure_12.csv CSV variable output from Figure_13.csv CSV variable output from Figure_14.csv
Organization: Department of Agriculture
Last updated: 2024-03-30T11:24:18.486230
Tags: bedforms, non-equilibrium-sediment-transport, sediment-transport, unsteady-flows

Tables

Table 1

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_1

2.69 KB
21 rows
2 columns


CREATE TABLE table_1 (
  "particle_size_mm" DOUBLE,
  "percent_finer" DOUBLE
);

Table 10

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_10

35.3 KB
214 rows
24 columns


CREATE TABLE table_10 (
  "bedform_time_hr_1" DOUBLE,
  "height_length_cm_1" DOUBLE,
  "flow_time_hr_1" DOUBLE,
  "flow_rate_l_s_1" DOUBLE,
  "bedform_time_hr_2" DOUBLE,
  "height_length_cm_2" DOUBLE,
  "flow_time_hr_2" DOUBLE,
  "flow_rate_l_s_2" DOUBLE,
  "bedform_time_hr_3" DOUBLE,
  "height_length_cm_3" DOUBLE,
  "flow_time_hr_3" DOUBLE,
  "flow_rate_l_s_3" DOUBLE,
  "bedform_time_hr_4" DOUBLE,
  "height_length_cm_4" DOUBLE,
  "flow_time_hr_4" DOUBLE,
  "flow_rate_l_s_4" DOUBLE,
  "bedform_time_hr_5" DOUBLE,
  "height_length_cm_5" DOUBLE,
  "flow_time_hr_5" DOUBLE,
  "flow_rate_l_s_5" DOUBLE,
  "bedform_time_hr_6" DOUBLE,
  "height_length_cm_6" DOUBLE,
  "flow_time_hr_6" DOUBLE,
  "flow_rate_l_s_6" DOUBLE
);

Table 11

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_11

17.38 KB
36 rows
18 columns


CREATE TABLE table_11 (
  "bedform_time_hr_1" DOUBLE,
  "stoss_slope_1" DOUBLE,
  "lee_slope_1" DOUBLE,
  "bedform_time_hr_2" DOUBLE,
  "stoss_slope_2" DOUBLE,
  "lee_slope_2" DOUBLE,
  "bedform_time_hr_3" DOUBLE,
  "stoss_slope_3" DOUBLE,
  "lee_slope_3" DOUBLE,
  "bedform_time_hr_4" DOUBLE,
  "stoss_slope_4" DOUBLE,
  "lee_slope_4" DOUBLE,
  "bedform_time_hr_5" DOUBLE,
  "stoss_slope_5" DOUBLE,
  "lee_slope_5" DOUBLE,
  "bedform_time_hr_6" DOUBLE,
  "stoss_slope_6" DOUBLE,
  "lee_slope_6" DOUBLE
);

Table 12

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_12

22.19 KB
108 rows
16 columns


CREATE TABLE table_12 (
  "experiment_time_hr_1" DOUBLE,
  "mean_migration_rate_at_equilibrium_for_peak_flow_rate_cm_min_1" DOUBLE,
  "experiment_time_hr_2" DOUBLE,
  "migration_rate_cm_min_for_equilbrium_conditions_at_peak_flow" DOUBLE,
  "experiment_time_hr_3" DOUBLE,
  "migration_rate_cm_min_1_hour_hydrograph" DOUBLE,
  "experiment_time_hr_4" DOUBLE,
  "migration_rate_cm_min_2_hour_hydrograph" DOUBLE,
  "experiment_time_hr_5" DOUBLE,
  "migration_rate_cm_min_3_hour_hydrograph" DOUBLE,
  "experiment_time_hr_6" DOUBLE,
  "migration_rate_cm_min_4_hour_hydrograph" DOUBLE,
  "experiment_time_hr_7" DOUBLE,
  "migration_rate_cm_min_5_hour_hydrograph" DOUBLE,
  "experiment_time_hr_8" DOUBLE,
  "migration_rate_cm_min_6_hour_hydrograph" DOUBLE
);

Table 13

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_13

21.3 KB
183 rows
12 columns


CREATE TABLE table_13 (
  "flow_rate_l_s_1" DOUBLE,
  "transport_rate_kg_hr_1" DOUBLE,
  "flow_rate_l_s_2" DOUBLE,
  "transport_rate_kg_hr_2" DOUBLE,
  "flow_rate_l_s_3" DOUBLE,
  "transport_rate_kg_hr_3" DOUBLE,
  "flow_rate_l_s_4" DOUBLE,
  "transport_rate_kg_hr_4" DOUBLE,
  "flow_rate_l_s_5" DOUBLE,
  "transport_rate_kg_hr_5" DOUBLE,
  "flow_rate_l_s_6" DOUBLE,
  "transport_rate_kg_hr_6" DOUBLE
);

Table 14

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_14

66.83 KB
361 rows
24 columns


CREATE TABLE table_14 (
  "flow_rate_l_s_1_hour_hydrograph" DOUBLE,
  "bedform_length_cm_1_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_1_hour_hydrograph_acaf9b" DOUBLE,
  "bedform_height_cm_1_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_2_hour_hydrograph" DOUBLE,
  "bedform_length_cm_2_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_2_hour_hydrograph_0dbe55" DOUBLE,
  "bedform_height_cm_2_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_3_hour_hydrograph" DOUBLE,
  "bedform_height_cm_3_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_3_hour_hydrograph_514728" DOUBLE,
  "bedform_height_cm_3_hour_hydrograph_1" DOUBLE,
  "flow_rate_l_s_4_hour_hydrograph" DOUBLE,
  "bedform_length_cm_4_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_4_hour_hydrograph_1" DOUBLE,
  "bedform_height_cm_4_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_5_hour_hydrograph" DOUBLE,
  "bedform_length_cm_5_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_5_hour_hydrograph_76d457" DOUBLE,
  "bedform_height_cm_5_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_6_hour_hydrograph" DOUBLE,
  "bedform_length_cm_6_hour_hydrograph" DOUBLE,
  "flow_rate_l_s_6_hour_hydrograph_1" DOUBLE,
  "bedform_height_cm_6_hour_hydrograph" DOUBLE
);

Table 15

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_15

33.47 KB
40 rows
36 columns


CREATE TABLE table_15 (
  "q_l_s_1" DOUBLE,
  "height_hysteresis1_cm" DOUBLE,
  "q_l_s_2" DOUBLE,
  "height_hysteresis2_cm" DOUBLE,
  "q_l_s_3" DOUBLE,
  "height_hysteresis3_cm" DOUBLE,
  "q_l_s_4" DOUBLE,
  "height_hysteresis4_cm" DOUBLE,
  "q_l_s_5" DOUBLE,
  "height_hysteresis5_cm" DOUBLE,
  "q_l_s_6" DOUBLE,
  "height_hysteresis6_cm" DOUBLE,
  "q_l_s_1a" DOUBLE,
  "length_hysteresis1_cm" DOUBLE,
  "q_l_s_2a" DOUBLE,
  "length_hysteresis2_cm" DOUBLE,
  "q_l_s_3a" DOUBLE,
  "length_hysteresis3_cm" DOUBLE,
  "q_l_s_4a" DOUBLE,
  "length_hysteresis4_cm" DOUBLE,
  "q_l_s_5a" DOUBLE,
  "length_hysteresis5_cm" DOUBLE,
  "q_l_s_6a" DOUBLE,
  "length_hysteresis6_cm" DOUBLE,
  "q_l_s_1b" DOUBLE,
  "load_hysteresis1_kg_hr" DOUBLE,
  "q_l_s_2b" DOUBLE,
  "load_hysteresis2_kg_hr" DOUBLE,
  "q_l_s_3b" DOUBLE,
  "load_hysteresis3_kg_hr" DOUBLE,
  "q_l_s_4b" DOUBLE,
  "load_hysteresis4_kg_hr" DOUBLE,
  "q_l_s_5b" DOUBLE,
  "load_hysteresis5_kg_hr" DOUBLE,
  "q_l_s_6b" DOUBLE,
  "load_hysteresis6_kg_hr" DOUBLE
);

Table 2

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_2

2.68 KB
25 rows
2 columns


CREATE TABLE table_2 (
  "time" VARCHAR,
  "flow_rate_m_3_s" DOUBLE
);

Table 3

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_3

165.44 KB
1500 rows
36 columns


CREATE TABLE table_3 (
  "x_1_hour_pre_m" DOUBLE,
  "z_1_hour_pre_cm" DOUBLE,
  "x_1_hour_trough_m" DOUBLE,
  "z_1_hour_trough_cm" DOUBLE,
  "x_1_hour_peak_m" DOUBLE,
  "z_1_hour_peak_cm" DOUBLE,
  "x_3_hour_pre_m" DOUBLE,
  "z_3_hour_pre_cm" DOUBLE,
  "x_3_hour_trough_m" DOUBLE,
  "z_3_hour_trough_cm" DOUBLE,
  "x_3_hour_peak_m" DOUBLE,
  "z_3_hour_peak_cm" DOUBLE,
  "x_6_hour_pre_m" DOUBLE,
  "z_6_hour_pre_cm" DOUBLE,
  "x_6_hour_trough_m" DOUBLE,
  "z_6_hour_trough_cm" DOUBLE,
  "x_6_hour_peak_m" DOUBLE,
  "z_6_hour_peak_cm" DOUBLE,
  "x_1_hour_max_m" DOUBLE,
  "z_1_hour_max_cm" DOUBLE,
  "x_1_hour_trough_max_m" DOUBLE,
  "z_1_hour_trough_max_cm" DOUBLE,
  "x_1_hour_peak_max_m" DOUBLE,
  "z_1_hour_peak_max_cm" DOUBLE,
  "x_3_hour_max_m" DOUBLE,
  "z_3_hour_max_cm" DOUBLE,
  "x_3_hour_trough_max_m" DOUBLE,
  "z_3_hour_trough_max_cm" DOUBLE,
  "x_3_hour_peak_max_m" DOUBLE,
  "z_3_hour_peak_max_cm" DOUBLE,
  "x_6_hour_max_m" DOUBLE,
  "z_6_hour_max_cm" DOUBLE,
  "x_6_hour_trough_max_m" DOUBLE,
  "z_6_hour_trough_max_cm" DOUBLE,
  "x_6_hour_peak_max_m" DOUBLE,
  "z_6_hour_peak_max_cm" DOUBLE
);

Table 4

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_4

31.16 KB
214 rows
24 columns


CREATE TABLE table_4 (
  "transport_time_hr_1" DOUBLE,
  "qs_kg_hr_1" DOUBLE,
  "flow_time_hr_1" DOUBLE,
  "flow_rate_l_s_1" DOUBLE,
  "transport_time_hr_2" DOUBLE,
  "qs_kg_hr_2" DOUBLE,
  "flow_time_hr_2" DOUBLE,
  "flow_rate_l_s_2" DOUBLE,
  "transport_time_hr_3" DOUBLE,
  "qs_kg_hr_3" DOUBLE,
  "flow_time_hr_3" DOUBLE,
  "flow_rate_l_s_3" DOUBLE,
  "transport_time_hr_4" DOUBLE,
  "qs_kg_hr_4" DOUBLE,
  "flow_time_hr_4" DOUBLE,
  "flow_rate_l_s_4" DOUBLE,
  "transport_time_hr_5" DOUBLE,
  "qs_kg_hr_5" DOUBLE,
  "flow_time_hr_5" DOUBLE,
  "flow_rate_l_s_5" DOUBLE,
  "transport_time_hr_6" DOUBLE,
  "qs_kg_hr_6" DOUBLE,
  "flow_time_hr_6" DOUBLE,
  "flow_rate_l_s_6" DOUBLE
);

Table 5

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_5

46.35 KB
214 rows
24 columns


CREATE TABLE table_5 (
  "time_1_hr" DOUBLE,
  "total_load_1_kg_hr" DOUBLE,
  "time_1a_hr" DOUBLE,
  "engelund_hansen_predicted_load_1_kg_hr" DOUBLE,
  "time_2_hr" DOUBLE,
  "total_load_2_kg_hr" DOUBLE,
  "time_2a_hr" DOUBLE,
  "engelund_hansen_predicted_load_2_kg_hr" DOUBLE,
  "time_3_hr" DOUBLE,
  "total_load_3_kg_hr" DOUBLE,
  "time_3a_hr" DOUBLE,
  "engelund_hansen_predicted_load_3_kg_hr" DOUBLE,
  "time_4_hr" DOUBLE,
  "total_load_4_kg_hr" DOUBLE,
  "time_4a_hr" DOUBLE,
  "engelund_hansen_predicted_load_4_kg_hr" DOUBLE,
  "time_5_hr" DOUBLE,
  "total_load_5_kg_hr" DOUBLE,
  "time_5a_hr" DOUBLE,
  "engelund_hansen_predicted_load_5_kg_hr" DOUBLE,
  "time_6_hr" DOUBLE,
  "total_load_6_kg_hr" DOUBLE,
  "time_6a_hr" DOUBLE,
  "engelund_hansen_predicted_load_6_kg_hr" DOUBLE
);

Table 6

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_6

20.46 KB
183 rows
12 columns


CREATE TABLE table_6 (
  "flow_rate_l_s_1" DOUBLE,
  "slope1" DOUBLE,
  "flow_rate_l_s_2" DOUBLE,
  "slope2" DOUBLE,
  "flow_rate_l_s_3" DOUBLE,
  "slope3" DOUBLE,
  "flow_rate_l_s_4" DOUBLE,
  "slope4" DOUBLE,
  "flow_rate_l_s_5" DOUBLE,
  "slope5" DOUBLE,
  "flow_rate_l_s_6" DOUBLE,
  "slope6" DOUBLE
);

Table 7

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_7

6.64 KB
6 rows
6 columns


CREATE TABLE table_7 (
  "hydrograph_length_hr" BIGINT,
  "measured_cumulative_load_over_hydrograph_kg" DOUBLE,
  "hydrograph_length_hr_1" BIGINT,
  "engelund_hansen_method_cumulative_load_over_hydrograph_kg" DOUBLE,
  "hydrograph_length_hr_2" BIGINT,
  "integrated_shear_stress_method_cumulative_load_over_hy_f6c5149c" DOUBLE
);

Table 8

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_8

34.93 KB
214 rows
24 columns


CREATE TABLE table_8 (
  "bedform_time_hr_1" DOUBLE,
  "height_cm_1" DOUBLE,
  "flow_time_hr_1" DOUBLE,
  "flow_rate_l_s_1" DOUBLE,
  "bedform_time_hr_2" DOUBLE,
  "height_cm_2" DOUBLE,
  "flow_time_hr_2" DOUBLE,
  "flow_rate_l_s_2" DOUBLE,
  "bedform_time_hr_3" DOUBLE,
  "height_cm_3" DOUBLE,
  "flow_time_hr_3" DOUBLE,
  "flow_rate_l_s_3" DOUBLE,
  "bedform_time_hr_4" DOUBLE,
  "height_cm_4" DOUBLE,
  "flow_time_hr_4" DOUBLE,
  "flow_rate_l_s_4" DOUBLE,
  "bedform_time_hr_5" DOUBLE,
  "height_cm_5" DOUBLE,
  "flow_time_hr_5" DOUBLE,
  "flow_rate_l_s_5" DOUBLE,
  "bedform_time_hr_6" DOUBLE,
  "height_cm_6" DOUBLE,
  "flow_time_hr_6" DOUBLE,
  "flow_rate_l_s_6" DOUBLE
);

Table 9

@usgov.usda_gov_data_from_sediment_transport_and_bed_topograp_71452f62.table_9

34.5 KB
214 rows
24 columns


CREATE TABLE table_9 (
  "bedform_time_hr_1" DOUBLE,
  "length_cm_1" DOUBLE,
  "flow_time_hr_1" DOUBLE,
  "flow_rate_l_s_1" DOUBLE,
  "bedform_time_hr_2" DOUBLE,
  "length_cm_2" DOUBLE,
  "flow_time_hr_2" DOUBLE,
  "flow_rate_l_s_2" DOUBLE,
  "bedform_time_hr_3" DOUBLE,
  "length_cm_3" DOUBLE,
  "flow_time_hr_3" DOUBLE,
  "flow_rate_l_s_3" DOUBLE,
  "bedform_time_hr_4" DOUBLE,
  "length_cm_4" DOUBLE,
  "flow_time_hr_4" DOUBLE,
  "flow_rate_l_s_4" DOUBLE,
  "bedform_time_hr_5" DOUBLE,
  "length_cm_5" DOUBLE,
  "flow_time_hr_5" DOUBLE,
  "flow_rate_l_s_5" DOUBLE,
  "bedform_time_hr_6" DOUBLE,
  "length_cm_6" DOUBLE,
  "flow_time_hr_6" DOUBLE,
  "flow_rate_l_s_6" DOUBLE
);