NexSens CB-40 Data Buoy
- Integrated 4" diameter stainless steel slotted instrument pipe
- Supports 1-3 nautical mile light for deployment in navigable waters
- Lightweight system can be deployed by a single person
|CB-40||Data buoy with polymer-coated foam hull, 40 lb. buoyancy|
|Usually ships in 3-5 days|
|M550-F-Y||Solar marine light with flange mount & 1-3 nautical mile range, 15 flashes per minute, yellow|
|Usually ships in 3-5 days|
The CB-40 Data Buoy offers a compact and affordable platform for deploying water quality sondes and other instruments that integrate power and data logging. The lightweight platform can be deployed from small boats, large vessels or even helicopters, making it the ideal choice for applications where water needs to be monitored at a moment’s notice. The buoy can also be used as an underwater float and instrument housing for subsurface deployments.
The buoy is constructed of an inner core of cross-linked polyethylene foam with a tough polyurea skin and stainless steel frame. An optional 1-3 NM solar marine light mounts over the topside access hole, and three eyenuts offer a convenient lifting point. The CB-40 supports a 1, 2, or 3-point mooring via bottom bow shackle and three eyenuts. Optional accessories include chain, shackles and anchors for buoy mooring.
The CB-40 Data Buoy weighs 38 lbs. with no payload and approximately 45 lbs. with integrated solar marine light and water quality sonde. The 4" stainless steel instrument pipe securely houses the instrument and includes slotted holes for water flow. Compatible instruments include YSI 6-Series & EXO sondes, Hydrolab Series 5 & HL sondes, Eureka Sub 2 & Manta 2 sondes, and In-Situ TROLL 9500 instruments.
- Hull Dimensions: 14" (35.56cm) outside diameter; 20" (50.80cm) tall
- Instrument Pipe Dimensions: 3.87" (9.83cm) inside diameter; 48" (121.92cm) tall
- Weight: 38 lbs. (no payload); 45 lbs. (with sonde & solar marine light)
- Buoyancy: 40 lbs.
- Hull Material: Cross-linked polyethylene foam with polyurea coating & stainless steel deck
- Hardware Material: 304 stainless steel
- Mooring Attachments: 1, 2, or 3 point
No, the CB-50 and larger buoy platforms can accommodate this feature.
Any submersible instrument with internal power & data logging that fits within a 4” diameter x 48” long pipe could be deployed from this platform.
There are no waterproof housing compartments on this platform. The CB-150 and larger buoy platforms can accommodate sensitive electronics inside the data well.
The CB-40 can be deployed subsurface with an anchor heavier than the net buoyancy of the deployed equipment. This is useful when monitoring at a fixed distance from the bottom of the water body.
In The News
Since 2003 harmful bacteria Escherichia coli (E. coli) levels have created a health risk to recreational users in Boulder Creek. Boulder Creek has been designated as an impaired stream and is not meeting an EPA health-based water quality standard.
Concentrations of E. coli increase from the mouth of Boulder Canyon to the University of Colorado-Boulder and beyond based upon data collected by the City of Boulder according to information published by the CU Independent and the Boulder Camera . EM spoke to environmental engineer Art Hirsch of the Boulder Waterkeeper , who is advocating for greater accountability from all entities that own property abutting the stream.
The National Oceanic and Atmospheric Administration (NOAA) and the Pacific Islands Ocean Observing System (PacIOOS) at the University of Hawaiʻi at Māno a , in collaboration with other partners, recently deployed a new ocean acidification (OA) monitoring site in Fagatele Bay National Marine Sanctuary , American Samoa. Derek Manzello , a coral ecologist with NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) in Florida, is the lead PI of ACCRETE: the Acidification, Climate and Coral Reef Ecosystems Team at AOML. Dr. Manzello connected with EM about the deployment.
“ACCRETE encompasses multiple projects that all aim to better understand the response of coral reef ecosystems to climate change and/or ocean acidification,” explains Dr.Read More
Around the world, extreme wave heights and ocean winds are increasing. The greatest increase is happening in the Southern Ocean, according to recent research from the University of Melbourne , and Dr. Ian Young corresponded with EM about what inspired the work.
“Our main interest is ocean waves, and we are interested in wind because it generates waves,” explains Dr. Young. “Ocean waves are important for the design of coastal and offshore structures, the erosion of beaches and coastal flooding, and the safety of shipping.”
Waves also have a role in determining how much heat, energy and gas can be trapped in the ocean.
“The major reason why changes in wave height may be important is because of sea level rise,” details Dr. Young.Read More