Case Study: Measuring Nitrate in Puget Sound Using Optical Sensors

Case Study: Measuring Nitrate in Puget Sound Using Optical Sensors

Case Study, Sensors, Water Quality
Download the Case Study Now! Learn how the King County Dept. of Natural Resources and Parks in Seattle, Washington conducts long-term marine monitoring to assess baseline conditions and trends in Central Puget Sound, especially nitrate. In this case study, Sea-Bird SUNA measurements from Puget Sound, corrected for bromide, match the accuracy of measurements made with traditional wet chemistry techniques to within ±0.0025 mgN/L. About Sea-Bird SUNA V2 The SUNA V2 is the ultimate solution for real-time nutrient monitoring. This sensor measures nitrate with industry leading accuracy and stability over a wide range of environmental conditions (including extremely turbid and high CDOM conditions), from blue-ocean nitraclines to storm runoff in rivers and streams. The SUNA V2 incorporates the proven MBARI-ISUS nitrate measurement technology, which is based on the absorption characteristics of nitrate in…
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OTT Hydromet sensors play a critical role during Hurricane Harvey

OTT Hydromet sensors play a critical role during Hurricane Harvey

Case Study, Company News, Sensors, Water Level
  OTT Hydromet sensors for measuring water level in creeks and bayous, played a critical role during Hurricane Harvey. Hurricane Harvey, and the subsequent flooding, was an unprecedented and devastating event in eastern Texas. Harvey produced an average of 33.7 inches of rainfall over the 1,777 square miles of Harris County throughout a 4-day period which equates to 1 trillion gallons of water and is also 68% of the yearly annual rainfall. Of the 22 watersheds across Harris County, 13 established new record water levels during Harvey surpassing previous records by Tropical Storm Allison (2001), Tropical Claudette (1979) and the 2016 Tax Day flooding. The Harris County Flood Control District was first established in 1937 following two major floods within six years and started installing their Flood Warning System in…
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Hydromet Cloud Case Study: Thompson’s Mills

Hydromet Cloud Case Study: Thompson’s Mills

Case Study, Data Management/Software
    Download the case study! Thompson's Mills is a unique survivor of times past, chronicling 150 years of Oregon rural life, and honoring the owners who adapted the mill to the changing world around it. It is the last water-powered mill in the state and its turbines can be seen in action today. Currently, water level is monitored at one station and by the Fall of 2017, at two stations, to inform decisions on how to manage the gates in order to maintain water levels within a specific threshold Hydrologic products and data management services offered by Sutron and OTT Hydromet play a critical part in the management Thompson’s Mills water resources. Want to read more about how Hydromet Cloud is making a difference at Thompson’s Mills? Download the…
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Case Study: Long-Term Water Quality Monitoring with the Sea-Bird HydroCAT-EP

Case Study: Long-Term Water Quality Monitoring with the Sea-Bird HydroCAT-EP

Case Study, Water Quality
Download the Sea-Bird HydroCAT-EP Case Study Now! The Sea-Bird Scientific HydroCAT-EP is ideally suited for extended deployments in remote, biologically rich environments. Factory calibrated, field proven sensors ensure long term data stability. Depending on the application, the HydroCAT-EP can collect high quality data for several months up to a year. As part of HydroCAT-EP field tests, an extended deployment was carried out at Shilshole Bay, Puget Sound, Washington. In conjunction with the field tests, an SBE 37 MicroCAT with Dissolved Oxygen was deployed and a water sampling program was conducted. Intercomparisons between the data sets show the HydroCAT-EP is an accurate and stable instrument. These results also highlight the lack of maintenance required to sustain high quality data return. The HydroCAT-EP was deployed for 3.5 months from July 1, 2015…
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Visual Case Study: HYDROLAB Sonde Survivor – HYDROLAB DS5

Visual Case Study: HYDROLAB Sonde Survivor – HYDROLAB DS5

Case Study, Water Quality
  The HYDROLAB DS5 multiparameter water quality sonde offers for maximum capability and flexibility the choice of any of HYDROLAB's 17 superior sensors for either profiling or unattended monitoring. DS5 Features:  Seven universal sensor ports that allow custom configuration Measures up to 16 parameters simultaneously (some sensors provide multiple parameters) Capable of measurements using any of HYDROLAB'S 17 sensors Flexible design for use in either profiling or long-term deployments   Tetra Tech, a premier worldwide consulting and engineering firm, focusing on water, environment, infrastructure, resource management, energy, and international development services, shared their experience with HYDROLAB DS5 sondes
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Harris County Flood Warning System Case Study

Harris County Flood Warning System Case Study

Case Study, Sensors, Water Level
OTT RLS & CBS Water Level Sensors Making a Difference in Harris County. Download the Case Study! The Harris County Flood Control District in Texas was created in 1937 in response to the devastating floods that struck Downtown Houston and Harris County between 1929 and 1935. Currently, the District's boundaries include 3.7 million people in 34 jurisdictions one of which is the City of Houston. In just one year Harris County endured two massive rainfall events with totals of 8-16 inches in 3 to 12 hours. A total of 9800 homes were flooded and 9 persons died. The District is using its "Flood Warning System" (FWS) to measure rainfall and water level amounts in real-time, to provide up-to-date flood information.
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