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
A new study showing that Arctic clouds are sensitive to air pollution could pave the way for mitigating future problems. “Weather patterns in the Arctic are changing extraordinarily rapidly,” explained Dr. Timothy Garrett, an atmospheric scientist from the University of Utah, which recently completed the study. “We want to understand why so that we better understand their potential impact on lower latitudes where most of us live.” While scientists know that changes in carbon dioxide levels are the biggest player, they are increasingly realizing that clouds play an important role as well. Prior research has shown that air pollution, also referred to as particulate matter, naturally travels northward.Read More
If there's a single environmental concern that the American public has become more sensitive to in recent years, it's probably the threat posed by lead in water. The Flint, Michigan drinking water crisis—which has since been revealed as part of a national trend involving crumbling infrastructure —is also part of a global problem , with the World Health Organization identifying lead as one of ten chemicals posing a major public health concern around the world. Worsening the issue is the difficulty that has historically complicated the lead removal process .Read More