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...
For SBE 4 conductivity calibrations, Sea-Bird uses natural seawater that has been carefully collected, stored, UV irradiated, and filtered. Artificial seawater is not adequate if calibration errors are to be kept below 0.010 psu. Note: SBE 4 is the...
The difference between downcast and upcast is most likely related to package wake. When the CTD is mounted under a large water sampler, the variation can be on the order of 5 to 8 meters. This is due to the shadowing of the CTD sensors by the water sampler.
One of the reasons that this is not a simple question is that there are several factors to take into consideration regarding the error margin for practical salinity measurements. Salinity itself is a derived measurement from temperature, conductivity, and pressure, so...
The FIRe System measures changes in chlorophyll fluorescence that occur during a short (100 - 400 ?s) but intense (> 20,000 ?mol photons m-2 s-1) flash of light whereas the PAM approach measures the fluorescence induced by a weak modulated light source while using...
Sea-Bird Scientific has developed cosine collectors that are specifically designed to optimize performance in the intended media of operation (air or water). So in water irradiance sensors have cosine collectors that provide an excellent response in water but not in...
Sea-Bird Scientific multispectral 500 series radiometers measure light at each fixed wavelength with an interference filter/detector assembly. The analog output of each detector is amplified and digitized. The amplification stage and noise filtering is...
The acquisition of conductivity/salinity data alongside the SeaFETTM is recommended. The acquisition of temperature data is not necessary as the SeaFETTM performs temperature measurements. Typically, conductivity and temperature measurements are combined in...
The SUNA V2 determines nitrate concentrations from the shape of the UV absorption curve. The least squares curve fitting algorithm uses calibrated extinction coefficients for nitrate and bromide (strong absorbing species in salt water) to calculate the concentration...
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%.
Sea-Bird Scientific was proud to host an Ocean Science Mixer and Networking Event in Seattle, Washington, on June 1, 2023 for World Oceans Day. Following our virtual webinar on Forging Your Career in Academia and Industry in partnership with The Oceanography Society...
On Wednesday, July 12th, the team at Sea-Bird Scientific took time out of their day to go to one of our local beaches and pick up trash. Early July is an especially critical time of year to do beach clean-ups, given the proximity to the 4th of July in the United...
Hands Off and High-Quality Data: Using the HydroCAT-EP V2 to Get the Full Picture of a Dynamic Aquatic Ecosystem “King County, Washington’s mooring program is designed to collect continuous oceanographic and meteorological data every 15 minutes in Central Puget Sound....