Wind-wave and suspended-sediment data from Liberty Island and Little Holland Tract, Sacramento-San Joaquin Delta, California (ver. 2.0, September 2019)
Dates
Publication Date
2016-12-21
Start Date
2015-08-04
End Date
2017-02-07
Revision
2019-09-16
Citation
Lacy, J.R., Carlson, E.M., and Ferreira, J.C.T., 2016, Wind-wave and sediment-transport time-series data from Liberty Island and Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015-2017 (ver. 2.0, September 2019): U.S. Geological Survey data release, https://doi.org/10.5066/F73R0R07.
Summary
Data were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center to investigate the influence of wind waves on sediment dynamics in two flooded agricultural tracts in the northern Sacramento-San Joaquin Delta: Little Holland Tract and Liberty Island. This effort is part of a large interdisciplinary study led by the USGS California Water Science Center and funded by the U.S. Bureau of Reclamation to investigate how shallow-water habitats in the Sacramento-San Joaquin Delta function and whether they provide good habitat for native fish species, including the Delta smelt. Elevated turbidity is a requirement for Delta smelt habitat, and turbidity is largely comprised of suspended sediment. Wind waves develop [...]
Summary
Data were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center to investigate the influence of wind waves on sediment dynamics in two flooded agricultural tracts in the northern Sacramento-San Joaquin Delta: Little Holland Tract and Liberty Island. This effort is part of a large interdisciplinary study led by the USGS California Water Science Center and funded by the U.S. Bureau of Reclamation to investigate how shallow-water habitats in the Sacramento-San Joaquin Delta function and whether they provide good habitat for native fish species, including the Delta smelt. Elevated turbidity is a requirement for Delta smelt habitat, and turbidity is largely comprised of suspended sediment. Wind waves develop in large open-water regions with large fetch, and can increase turbidity by mobilizing bottom sediments.
Data were collected from several sites in Little Holland Tract (LHT) and Liberty Island (LI), including the Liberty Island Conservation Bank (LICB), from 2015 to 2017. Table 1 (below) lists the deployment name (DLXXX) and dates for each sampling station location. Station names starting with ‘H’ are in LHT; station names starting with ‘L’ are in LI, and the station name starting with ‘W’ is in LICB. At stations with a ‘W’ as the second character of the station name, we collected water-level, wind-wave, and turbidity time-series data. At stations with a ‘V’ as the second character of the station name, we collected water-level, wind-wave, and turbidity, as well as velocity time-series data. The turbidity sensors were calibrated to suspended-sediment concentration measured in water samples collected on site (tables 2a,b) for LHT and LI. Details on instrumentation and sampling are included on the individual pages for each station (see links below). Data were sequentially added to this data release as they were retrieved and post-processed.
Table 1: Deployment dates for all stations
HWA
HVB
HWC
HVD
HVE
LWA
LVB
WVA
DL115:
Aug. 4, 2015 – Oct. 7, 2015
X
X
X
X
DL215:
Oct. 8, 2015 – Dec. 7, 2015
X
X
X
X
DL315:
Dec. 7, 2015 – Feb. 4, 2016
X
X
X
X
DL415:
Feb. 4, 2016 – Apr. 12, 2016
X
X
X
X
DL516:
Apr. 12, 2016 – Jun. 8, 2016
X
X
X
X
DL616:
Jun. 8, 2016 – Aug. 9, 2016
X
X
X
X
DL716:
Aug. 9, 2016 – Oct. 12, 2016
X
X
X
X
DL816:
Oct. 12, 2016 – Dec. 7, 2016
X
X
X
X
X
DL916:
Dec. 7, 2016 – Jan. 30, 2017
X
X
X
X
DL107:
Jan. 30, 2017 – Mar. 30, 2017
X
X
X
X
DL117:
Mar. 30, 2017 – May 31, 2017
X
X
X
DL127:
May 31,2017 – Jul. 28, 2017
X
X
X
X
DL137:
Jul. 28, 2017 – Oct. 3, 2017
X
X
X
X
Table 2a: OBS calibration parameters for turbidity sensors recorded on Nortek loggers
slope
y_cross
R2
n
SN11843
64.368
5.4793
0.85636
11
SN11772
85.439
0.44228
0.96735
13
SN12141
54.925
4.4359
0.93726
18
SN11771
57.911
5.3504
0.84066
11
SN11844
62.997
3.7569
0.98157
11
Table 2b: OBS calibration parameters for turbidity sensors recorded on RBR loggers
These data will be used to determine the range of turbidity and suspended-sediment concentration (SSC) in Liberty Island and Little Holland Tract and the extent to which wind waves contribute to turbidity, to investigate physical attributes of flooded habitats that promote enhanced turbidity, and to evaluate the potential for flooded agricultural tracts to contribute to elevated turbidity in adjacent waters.
Preview Image
Map of Liberty Island and Little Holland Tract in the Sacramento-San Joaquin Delta showing locations of sampling stations.