The temperature and salinity correction for the SUNA can be traced to the experiment outlined in Sakamoto et al. 2009, which is the T/S correction our UCI-based SUNA software uses in post-processing only.nnAbsorption of UV light in seawater is dominated by dissolved...
Yes, provided the SeaFETTM sensing elements remain ice-free, the instrument works across the broad temperature range of 0 to 50 deg C. The original SeaFETTM prototypes developed at MBARI and SCRIPPS were deployed extensively in the Antarctic for several...
Instrument specific calibrations are more accurate and correspond to the published accuracy specifications. The accuracy of the class based calibration is estimated to be 2.2 uM +/- 20%.
SBE Data Processing includes a module called Seacalc III. Seacalc III can calculate density, sound velocity, and a number of other parameters for a given user input of pressure, temperature, and conductivity (or salinity).
Sea-Bird real-time data acquisition (Seasave V7) and data processing (SBE Data Processing) software supports calculation of Chen-Millero, Del Grosso, and Wilson sound velocities. The algorithms, as implemented in our software, are provided in the software...
Direct SV probes measure the time (flight time) required for a sound pulse to travel over a fixed length, using a high-speed clock to measure time. The clock starts when the pulse is emitted, and stops when the pulse is received. Theoretically, you only need to know...
Upon receipt of an instrument, the initial accuracy is the accuracy when comparing to a known standard. Resolution is the smallest amount of change that a sensor can see.
ITS-90 was adopted in 1990 as the temperature scale; IPTS-68 was the previous standard. The differences are related to redefining certain triple points and other melt or freeze cells that are used as the fundamental standards for temperature. Over the oceanographic...
The modern oceanographic definition of salinity is the Practical Salinity Scale of 1978 (PSS-78). By definition, PSS-78 is valid only in the range of 2 to 42 psu. Sea-Bird uses the PSS-78 algorithm in our software, without regard to those limitations on the valid...
The numeric difference between psu and ppt is small; both indicate ocean salinity. Prior to 1978, oceanographers referred to the physical quantity ppt (kg salt per kg water in parts per thousand). In 1978, the Practical Salinity Scale (PSS-78) was adopted, which...
We hope to see you at OCEANS 2024 We are excited to sponsor and exhibit at the upcoming OCEANS Conference & Exposition in Halifax, NS, Canada from September 23 -26. Please come visit our team at booth #213. Overview The OCEANS 2024 Halifax conference is for global...
We hope to see you at UG2 '24 We are excited to sponsor the upcoming 2024 Glider Workshop in Ann Arbor, Michigan, from September 10 - 12, 2024. Overview This workshop will bring together the global underwater glider community to strengthen international collaboration...
Press Release Wednesday, June 26 2024 Collaboration and partnership is at the core of what we do. We are - Enabling the science that matters - working with scientists and researchers across the globe to provide instrumentation that produces defensible and accurate...