The DH-48 a lightweight sampler for collection of suspended sediment samples where wading rod suspension is used.
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|401-001||DH-48 depth integrated sediment sampler||
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Will the Rickly DH-48 Integrated Sediment Sampler allow us to measure the rate at which sediment is flowing into our lake from its main tributary?
The Rickly DH-48 depth-integrated sediment sampler is designed to take continuous suspended-sediment samples. When used alone, this sampler will only measure a concentration, and not a flow rate. It is lowered from the water's surface to the bottom and raised again at a constant rate of speed to collect a depth-integrated suspended-sediment sample. The sediment-to-fluid volume can be measured to determine concentration. If it is used with a flow meter, or a velocity and depth sensor, sediment flow can be calculated.
A deep water reef off the coast of a small island in the Dutch Caribbean will be explored at depths yet to be seen by scientists, according to a press release from the Netherlands’ Wageningen University . The researchers will be mapping biodiversity and collecting samples from reefs off the coast of Bonaire. They plan to travel as deep as 300 meters to observe the biodiverse and mostly unexplored reefs. A submersible from Bonaire’s Curacao Public Aquarium will take researchers down to do their observations. The sub's sediment core sampler will help the team analyze sediment in the reefs. Biological samples will be analyzed and their DNA will be coded in a molecular lab in the Netherelands’ Naturalis Biodiversity Center.Read More
It may have taken 20 years and $20 million to develop, but Lake Erie researchers working to fight harmful algal blooms (HABs) now have a new tool to safeguard drinking water: ESPniagara. The advanced sampler has been called a “lab in a can” for its ability to sample microcystins, the most common algal toxin these days, in almost real time. The big gadget’s name is a mashup between “ESP,” for environmental sample processor, and the name of Admiral Oliver Hazard Perry’s ship during the War of 1812. “We wanted to name it something that was significant to Lake Erie,” said Tim Davis, molecular biologist and lead HABs researcher at the National Oceanic and Atmospheric Administration’s Great Lakes Environmental Research Lab (NOAA GLERL) in Ann Arbor, Mich.Read More
As a research project underway at the University of California (UC) - Santa Barbara shows, sometimes you’ve got to leave the Earth to adequately study some of its most basic processes. Researchers at the university are partnering with the International Space Station to complete an investigation of fluid dynamics. The lab in microgravity is providing them with an important dataset for gauging the impacts of the force on our planet’s fluid movement. The experiments in space , to be run by astronauts, are fairly straightforward. Cameras will be employed to monitor different sediment particles as they interact with one another in fluid in near-zero gravity. Light shone at and through the setups will help researchers track the motion and observe the density of the particles.Read More