Flow-velocity data collected in the wetlands adjacent to canal C-111 in south Florida during 1997 and 1999

Abstract

Acidity is given in pH units. Acoustic signal strength is given in decibels (dB). Conductivity is given in microsiemens ftiS). Dissolved Oxygen (DO) is given in parts per million (ppm). Frequency of velocity measurement is given in hertz (Hz). Salinity is given in parts per thousand (ppt).Velocity coordinates are given in earth coordinates of magnetic east, north, and up.

Low flow regime measurements with an automatic pulse tracer velocimeter (APTV) in heterogeneous aquatic environments

“…Through hydrodynamic processes, wetlands and marshes have been shown as effective treatment methods in reducing several pollutants from surface waters including phosphorus [22], suspended solids [23] as well as metals [24]. Furthermore, several studies have been conducted in these environments to further characterize various fluid motion properties [8][9][10][11]. A summary of these studies for low velocity measurements in surface water environments in Table 1 presents the holistic advancement in this field.…”

“…Flow velocities in the Florida Everglades have generally been recorded within a 0.0 to 3.5 cm s À 1 range [8,9,11,25] while flow velocities in estuaries have been recorded as ranging from 0 to 28 cm s À 1 [26,27]. Velocities within wetland and marshes typically follow a spatially heterogeneous nature which may be explained by several reasons.…”

“…Acoustic Doppler velocimeters (ADV) Ball and Schaffranek [8] Wetland 0.15 to 0.66 USGS (2004) [31] Wetland 0.26 to 2.43 Schaffranek and Riscassi [25] Wetland 0.53 to 0.62 Lee and Carter [11] Wetland 0.2 to 1.2 Lightbody and Nepf [26] Wetland/estuary 1.2 to 3.7 Chanson et al [27] Estuary 0 to 28 Nepf [21] Hydraulic flume 2.2 to 15 Nepf [1] Hydraulic flume N/A Rehmel (2007) [32] Streamflow gauging stations 13 to 60 Acoustic Doppler current meters (ADCP) Genereux and Slater [12] Canal 9 to 40 Irish et al (1995) [33] Tidal bay 0 to 22 Vermeyen [13] Lake 0.1 to 5 Laser Doppler velocimeter (LDV)…”

“…Inexpensive current meters utilizing mechanical propellers have been found useful at higher flow rates, however begin to become infeasible at flows o6 cm s À 1 [7]. Acoustic Doppler velocitimeters (ADV) have found popularity in wetland applications and have been shown to measure down to 0.02 cm s À 1 in the Everglades [8][9][10][11], however come with inherent drawbacks including depth limitations, single point volume locations, signal aliasing, Doppler noise, and high costs ranging from $10,000-$20,000. Acoustic Doppler current profilers (ADCPs) have been found to operate effectively to produce current profiles in oceans, canals and rivers [12][13][14], but become infeasible in shallow water applications due to side lobe interferences and blanking distances.…”

Flow Velocity, Water Temperature, and Conductivity in Shark River Slough, Everglades National Park, Florida: August 2001-June 2002

“…Editing and filtering criteria used to process the ADV data for the 2001-2002 wet season include those suggested by the instrument manufacturer to detect suspect data attributed to poor signal quality (SonTek, 2001) and those developed during the processing and concurrent analysis of past ADV data (Ball and Schaffranek, 2000;Riscassi and past ADV data (Ball and Schaffranek, 2000;Riscassi and past ADV data (Ball and Schaf Schaffranek, 2002). The equipment manufacturer suggests minimum signal-to-noise-ratio (SNR) and statistical-correlation values of 5 dB and 70 percent, respectively, as indicative of good acoustic signal quality (SonTek, 2001).…”