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Along-channel velocity and calculated total suspended sediment measurements using an acoustic doppler velocimeter (ADV) in the Gulf Intracoastal Waterway at Larose, Louisiana from 2022-04-21 to 2022-05-01 (NCEI Accession 0276517)
An acoustic doppler velocimeter (ADV) was deployed in the Gulf Intracoastal Waterway (GIWW) near Larose (LA) using a 6000 kHz Nortek Acoustic Doppler Velocimeter (ADV). The cross section is about 75 m wide, with a depth of ~4.5 m toward the center and ~4 m toward the side. The instrument was deployed about 3 m from the bank, where the water depth is about 4 m. The three-dimensional velocity was recorded 0.4 m above the bed. Both the 3-dimensional velocity and the backscatter was recorded continuously at a frequency of 8 Hz. In post-processing, data were converted into bursts of 16 seconds, which were then averaged to give a single measurement per burst. The backscatter signal-to-noise ratio (S) [dB] was converted to TSS [mg/l] using a laboratory-calibrated formula (TSS=10^(0.052S+0.04).
A text file of the calculated TSS (mg/l) and along channel velocity (m/s) at depth is provided along with a .hdr that describes the headers of each file provided, a .dat that describes the data configuration from the instrument, and a .sen file that describes the instrument set up.
Complete Metadata
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| description | An acoustic doppler velocimeter (ADV) was deployed in the Gulf Intracoastal Waterway (GIWW) near Larose (LA) using a 6000 kHz Nortek Acoustic Doppler Velocimeter (ADV). The cross section is about 75 m wide, with a depth of ~4.5 m toward the center and ~4 m toward the side. The instrument was deployed about 3 m from the bank, where the water depth is about 4 m. The three-dimensional velocity was recorded 0.4 m above the bed. Both the 3-dimensional velocity and the backscatter was recorded continuously at a frequency of 8 Hz. In post-processing, data were converted into bursts of 16 seconds, which were then averaged to give a single measurement per burst. The backscatter signal-to-noise ratio (S) [dB] was converted to TSS [mg/l] using a laboratory-calibrated formula (TSS=10^(0.052S+0.04). A text file of the calculated TSS (mg/l) and along channel velocity (m/s) at depth is provided along with a .hdr that describes the headers of each file provided, a .dat that describes the data configuration from the instrument, and a .sen file that describes the instrument set up. |
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|
| identifier | gov.noaa.nodc:0276517 |
| issued | 2023-02-03T00:00:00.000+00:00 |
| keyword |
[
"0276517",
"SOUND VELOCITY",
"suspended solids",
"WATER DEPTH - AVERAGE",
"Acoustic Doppler Velocimeter (ADV)",
"pressure sensor",
"in situ",
"Louisiana State University",
"Coastal Waters of Louisiana",
"oceanography",
"QUANTIFYING MARSH EDGE ERODIBILITY AS A FUNCTION OF SALINITY AND WATER CHEMISTRY, AND ASSESSING POSSIBLE EFFECTS OF THE GULF INTRACOASTAL WATERWAY IN BARATARIA BAY",
"EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH",
"EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY",
"EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SUSPENDED SOLIDS",
"Along-channel velocity 0.4 m above bed",
"Total Suspended Sediment 0.4 m above bed",
"PRESSURE SENSORS > PRESSURE SENSORS",
"OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA",
"OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO",
"73T472"
]
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| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2023-02-14T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
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|
| rights | otherRestrictions |
| spatial | -90.380757,29.577382,-90.380757,29.577382 |
| temporal | 2022-04-21T00:00:00+00:00/2022-05-01T00:00:00+00:00 |
| title | Along-channel velocity and calculated total suspended sediment measurements using an acoustic doppler velocimeter (ADV) in the Gulf Intracoastal Waterway at Larose, Louisiana from 2022-04-21 to 2022-05-01 (NCEI Accession 0276517) |
