Remote Water Quality Monitoring https://hackaday.com/2023/03/20/remote-water-quality-monitoring/ #ArduinoHacks #waterquality #temperature #turbidity #arduino #logging #sdcard #sensor #water #data #TDS #pH

Remote Water Quality Monitoring - While it can be straightforward to distill water to high purity, this is rarely th... - https://hackaday.com/2023/03/20/remote-water-quality-monitoring/ #arduinohacks #waterquality #temperature #turbidity #arduino #logging #sdcard #sensor #water #data #tds #ph

Today I learned that when water turns cloudy (eg because it's filled with bacteria) that's called #turbidity. And there are standard tools to quantity turbidity.

The simplest approach is to lower a black and white disc until you can't see it anymore. Or equivalently, fill a glass cylinder until you can't see the bottom anymore. These devices cost like $30 and I can't understand why they're so expensive.

A more precise technique is to shine light into the water and measure how much of it gets scattered sideways. These devices cost like $300 and I can kind of understand why.

Anyway, I think I'm going to print out a black and white picture to put below my experiment jars. Then I can measure and adjust the biomass density somewhat more precisely.

Talks on analysis of #Sentinel1 and #Sentinel2 data by Dipak Paudial and Awnesh Singh respectively took me back to university time & the #Geoinformatics studies in #Jena. Really great data sources as reminded today for applications like #DisasterRisk assessment or #water #turbidity modelling.

#PacificGeospatialConference2022
#PGC2022 #GIS #ESA

Scattering, #turbidity, and a spectrophotometer part 1/n

imagine you have a solution or suspension going from looking clear to hazy then turbid/flaky when changing a control parameter (temperature, salt concentration...). If you have a UV-Vis spectrophotometer, you can try to quantify the "amount of turbidity" as a function of the control parameter.
The particles causing turbidity will scatter light away from the detector and decrease the transmitted intensity over a range of wavelengths.

Rapid Prototyping to Measure Turbidity in Rapids - [RiverTechJess] is in the process of getting a PhD in environmental engineering an... - https://hackaday.com/2022/11/15/rapid-prototyping-to-measure-turbidity-in-rapids/ #environmentalmonitoring #watersensor #turbidity #science #esp32 #irled #water

Rapid Prototyping to Measure Turbidity in Rapids https://hackaday.com/2022/11/15/rapid-prototyping-to-measure-turbidity-in-rapids/ #environmentalmonitoring #watersensor #turbidity #Science #ESP32 #irled #water

Rapid Prototyping to Measure Turbidity in Rapids

https://hackaday.com/2022/11/15/rapid-prototyping-to-measure-turbidity-in-rapids/

#environmentalmonitoring #watersensor #turbidity #Science #ESP32 #irled #water

RT @Eurisy1: The @Occitanie Region did expansion works in Port-la-Nouvelle, a major French harbour.

To monitor water #turbidity during the works, the Region relied on data from the #Copernicus satellites.

Curious to discover how #satellites enhance our system?🛰️

➡️https://www.youtube.com/watch?v=CqXJmFqzNJg

🐦🔗: https://nitter.eu/CopernicusEU/status/1519236029517115392

RT @ZanderVenter6@twitter.com

Anyone in #EarthEngine community know of good resources for monitoring #water #turbidity? Any apps, scripts, GitHub repos, NB papers. Maybe @gena_d@twitter.com or @jstnbraaten@twitter.com know?

🐦🔗: https://twitter.com/ZanderVenter6/status/1423261409891205124