water temperature profiler Articles

  • Why are we monitoring nutrients at different depths?

    Recently, LG Sonic introduced the MPC-Lab, an innovative monitoring buoy that can monitor algae, physico-chemical variables, and even nutrients such as nitrogen and phosphorus in near real-time and at different depths in a body of water. Combined with our other monitoring tools, this system offers a unique way to detect the spatial and temporal patterns of nutrient concentrations which play a ...


    By LG Sonic

  • Mind the bandgap | A temperature profiling technology comparison

    When it comes down to determining temperature in environmental media, there are many options—from fiber-optic to infrared sensing technologies—to observe and quantify the relative kinetic energy of a material. For single point data acquisition and a given specific temperature range and target medium, of course certain technologies are more optimal than others.  When it comes to ...


    By BeadedStream

  • Case study - Buoy-based temperature profiling in the Bavarian Lakes

    In summertime a temperature stratification occurs in deep lakes – the surface water is warm, but deep down the water is cold.  This has considerable influence on the nutrient balance and the biological habitat in these lakes. Due to generally higher air temperatures induced by the climate change, both change and have effects on the life conditions of the ecosystems in the lakes. ...


    By The OTT Hydromet Group

  • What is an `IAQ Profile`?

    The 'IAQ Profile' is a visual presentation of indoor air quality. PPM Technology's range of IAQ Monitors enable continuous monitoring of Indoor Air Quality; this precisely describes changes in concentration levels of selected air quality parameters over a period of time.  The IAQ Profile provides the knowledgebase and database for improving indoor air quality efficiently and ...


    By PPM Technology

  • Ramah NM Project Profile 0409

    Background The Ramah Navajo Chapter owns and operates the Ramah Pine Hill water system located in Ramah, New Mexico. The water system is served by one well that provides drinking water for the community’s residents at a maximum of 130 gallons per minute (gpm) with an approximate arsenic concentration of 18 parts per billion (ppb) and iron concentration of 1.70 milligrams per liter (mg/L). ...

  • Project profile - Ramah Pine Hill water system Ramah, New Mexico

    Background The Ramah Navajo Chapter owns and operates the Ramah Pine Hill water system located in Ramah, New Mexico. The water system is served by one well that provides drinking water for the community’s residents at a maximum of 130 gallons per minute (gpm) with an approximate arsenic concentration of 18 parts per billion (ppb) and iron concentration of 1.70 milligrams per liter ...

  • Verify and validate | Temperature monitoring for AGF

    Artificial Ground Freezing (AGF) is a specialized technique commonly used to control groundwater flow and settlement during underground construction.   Generally, a gallery of well loops are sunk into the soil and circulated with brine fluid to freeze and subsequently support the soil structure. While the soil-thermal dynamics can ...


    By BeadedStream

  • Distribution of organic carbon in soil profile data

    Soil organic carbon (SOC) content has been estimated at pan-European scale for the soil layer from 0 to a depth of 30 cm (Jones et al., 2005). The methodology used to generate the data layer relied on a combination of a pedo-transfer rule (PTR) and pedo-transfer functions (PTF). The PTR has been developed based on PTR No. 21 of the PTR database of the Soil Geographic Database of Eurasia (SGDBE). ...


  • Supplier profile: Aeration Industries Int’l. Inc.

    Pollution Engineering recently spoke with Aeration Industries co-founder and President Dan Durda. Mr. Durda co-founded the company, which celebrates its 30* anniversary this year, with his father, Joseph Durda, in Minneapolis, Minn. Known as the land of 10,000 lakes, a healthy fish population was very important to in-state residents. The company's first products were thus designed to reduce the ...

  • Precise Temperature Control assures High Quality Steel

    Process monitoring during continuous casting using special ratio-pyrometers and thermal imagers from LumaSense Today’s increasing quality standards and higher energy costs demand more accurate and consistent temperature control in every step of the steel making process. Steel manufacturing consists of high temperature manufacturing steps that use significant amounts of energy. Processes ...


    By LumaSense Technologies, Inc.

  • Spatial and temporal distribution of snow water content and response to air temperature in seasonal snow in the western Tianshan Mountains, China

    The snow water content was measured with a portable instrument (Snow Fork) in the Tianshan Station for Snow-cover and Avalanche, Chinese Academy of Sciences (TS) during the snow period in the winter of 2009–2010. The results indicated that the variation of snow water content increases exponentially over time. In the accumulation-stable period, the migration of liquid water is from the ...


    By IWA Publishing

  • Why high temperature combustion of landfill gas?

    Due to the accumulation of knowledge and the tightening of environmental law, the landfill technology has increasingly become concerned with the management of trace compounds in landfill gas. With landfill gas, contamination is through sulphur, chlorine, fluorine, halogenated hydrocarbons and heavy metals. Other trace elements such as volatile organic compounds (VOC), impose environmental ...


    By Hofstetter BV

  • What’s the Temperature? Thermal Modeling and its Importance in Thermal Remediation

    What is a model? A beautiful person who struts down a run way, a scaled down sculpture of the Empire State Building, or a series of equations that describe some phenomenon? Did you guess all of the above? Gold star! Models come in many different shapes and sizes. In the environmental consulting and remediation industry, the word “model” often refers to a numerical model. Numerical ...


    By TerraTherm, Inc.

  • Gene Expression Profiling of The Budding Yeast S. Cerevisiae Upon Exporsure to The Pesticide Atrazine

    Atrazine (ATR; 2-chloro-4-ethylamino-6-isopropylamino-s-triazine), a chlorinated triazine, has been one of the most heavily used herbicides in the world. It is used to control a variety of broadleaf weeds and grasses and as a result of its widespread use and moderate persistence, it has been identified as a principal contaminant of surface waters [1]. It can be present at several parts per ...


  • Grain size distribution and sediment flux structure in a river profile, measured with a LISST-SL instrument

    Abstract New data on sediment transport in a river are reported using a LISST-SL laser diffraction instrument that simultaneously measures velocity, optical transmission, depth, temperature, and sediment particle size distribution (PSD) isokinetically. Suspended sediment concentration (SSC)is obtained from the sum of PSD. Optical transmission is seen to be nearly constant in the top ...


    By Sequoia Scientific, Inc.

  • Dissolved oxygen measurements in aquatic environments: The effects of changing temperature and pressure on three sensor technologies

    Dissolved oxygen (DO) is probably the most important parameter related to water quality and biological habitat in aquatic environments. In situ DO sensors are some of the most valuable tools used by scientists and engineers for the evaluation of water quality in aquatic ecosystems. Presently, we cannot accurately measure DO concentrations under variable temperature and pressure conditions. ...

  • Groundwater attenuation of summer stream temperatures favors deeper intrusion depths into Lake George, NY

    Groundwater inputs to two major streams along the southern end of Lake George attenuate summer temperatures resulting in deeper lake intrusion depths relative to other major streams. Between late April and early October, East and West Brook baseflow water temperatures generally were cooler than other major streams by ∼4 °C in mid-summer. Historical data for West Brook confirmed that the trend ...


    By IWA Publishing

  • West Control Solutions announces eCAL- a new 1/16 DIN (48mm x 48mm) compact temperature controller

    Automated Control Engineering is the exclusive national supplier of the newest WEST product. West Control Solutions have announced the enhancement of its CAL Controls brand temperature controller portfolio by introducing eCAL, a compact, cost-effective temperature and process controller with extended capabilities. The new 1/16 DIN controller is easy to install and useful to retrofit, it is ideal ...

  • Partial nitrification of non-ammonium-rich wastewater within biofilm filters under ambient temperature

    This study evaluated the partial nitrification performances of two biofilm filters over a synthetic non-ammonium-rich wastewater at a 20°C room temperature under both limited DO (∼2.0 mg/L) and unlimited DO (∼4.0 mg/L) conditions. The two filters were each of 80 cm long and used different biofilm carriers: activated carbon and ceramic granule. Results showed that partial nitrification was ...


    By IWA Publishing

  • A comparative study of prognostic MM5 meteorological modeling with aircraft, wind profiler, lidar, tethered balloon and RASS data over Philadelphia during a 1999 summer episode

    This study presents a comparative evaluation of the prognostic meteorological Fifth Generation NCAR Pennsylvania State University Mesoscale Model (MM5) using data from the Northeast Oxidant and Particle Study (NE-OPS) research program collected over Philadelphia, PA during a summer episode in 1999. A set of model simulations utilizing a nested grid of 36 km, 12 km and 4 km horizontal resolutions ...


    By Springer

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