New RBRquartz Q|plus Enables High-Accuracy and Long Duration Tide & Wave Measurements

RBR Ltd. is pleased to announce the commercial release of the new RBRquartz3 Q|plus pressure logger to meet the demands for high-accuracy, long-term measurements of sea level, tidal, and wave dynamics by coastal oceanographers worldwide. At the heart of the RBRquartz3 Q|plus is an integrated Paroscientific Digiquartz® pressure sensor for best-in-class initial accuracy, resolution, and low-drift performance.

Intended for long-term autonomous or realtime observations, the RBRquartz3 Q|plus has high stability and can resolve water level changes as small as 100ppb at 16Hz sampling rate (for example, at 50m depth that would be a resolution of ±0.005mm). The RBRquartz3 Q|plus also comes standard with a ±0.002°C high-accuracy temperature sensor and may be configured with an optional 3-axis tilt sensor. In combination with RBR’s Ruskin software, the end-user has the availability of flexible measurement schedules, burst sampling, and configurable integration times to allow for a broad range of applications in coastal dynamics.

Greg Johnson, President of RBR, commented, “The RBRquartz3 Q|plus addresses the demands of scientists and engineers who require long-term quartz pressure sensor measurements in a package where ease-of-use is prioritised. We are happy to bring this instrument to the market and fill the gap that is present.”

Join the RBR team on Tuesday, April 20, 2021, at 12H00 EDT (16H00 UTC) or at 21H00 EDT (01H00 UTC + 1 DAY) for the official webinar product launch. We hope to see you on Zoom!

Research vessel Sonne on tour to recover moorings

The ongoing Corona pandemic has delayed research activities in the oceanographic sector in the past year.

Some projects had to be postponed or even cancelled for the time being, since research cruises, if any, could no longer be carried out to the previous extent. Among other things, this led to ther situation that moorings, installed on previous cruises, could not be recovered to the extent planned. This has led to the problem that the battery capacity of some moorings may sometimes be dangerously depleted. Remaining battery capacity is, however, a mandatory prerequisite for the recovery of the moorings, as they have to receive and process an acoustic command from the surface in order to detach themselves from their ballast weights in several thousand meters and to start their way back to the sea surface by means of VITROVEX buoyancy spheres installed along with the sensors.

The German research vessel Sonne is now on its way to recover these moorings, some of which being overdue. The cruise leader Nico Lahajnar is documenting this cruise in a blog worth reading.

We wish Sonne good luck on this journey and hope that all moorings can be recovered successfully.

Picture courtesy of Knut Heinatz, University of Hamburg