Measurements of vertical ozone profiles

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Ozone profile measured at Summit Station on 14 August 2009 by a ozone balloon-sonde, NASA's space-borne Microwave Limb Sounder, and retrieved from measurements of our SUV-150B spectroradiometer.Ozone profile measured at Summit Station on 14 August 2009 by a ozone balloon-sonde, NASA's space-borne Microwave Limb Sounder, and retrieved from measurements of our SUV-150B spectroradiometer.Biospherical Instrument has developed a new method to retrieve the vertical distribution of ozone in the atmosphere in cooperation with colleagues from NOAA's Global Monitoring Division in Boulder and the Ludwig-Maximilians-Universität in Munich, Germany. Our new method was recently published by Atmospheric Measurement Techniques and inverts the ozone profile from measurements of global spectral irradiance. The new method was applied to solar measurements of our high-resolution SUV-150B spectroradiometer located at Summit Station in the center of Greenland's ice sheet. The new method makes existing long-term data sets of global irradiance available for studying ozone profiles.

This is one example of Biospherical Instrument's involvement in cutting-edge research. Please see our publications page for contributions to other science projects.

 

Measurements during the 2017 total solar eclipse

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Total solar eclipse of 21 August 2017 observed with GUVis-3511.Total solar eclipse of 21 August 2017 observed with GUVis-3511.

BSI performed measurements with a GUVis-3511 radiometer in Oregon during The Great American Eclipse of August 21, 2017. An in-depth article about the campaign is here.

 

Biospherical OCULLAR Prototype featured in NASA's Cutting Edge

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OCULLAR sensor at sunsetOCULLAR sensor at sunset

Biospherical Instruments has developed a novel instrument that is capable of measuring light over 14 decades of dynamic range. The prototype sensor, known as the Ocean Color Underwater Low Light Advanced Radiometer (OCULLAR), resulted from a collaboration between Biospherical Instruments and NASA/GSFC scientist Dr. Stanford Hooker. The instrument pairs a miniature photomultiplier tube (PMT) with a Biospherical microradiometer coupled to a silicon photodetector. A microprocessor embedded in the microradiometer activates the PMT when low-light conditions are detected, and is powered off under higher light conditions where the silicon detector microradiometers take over. The first field campaign using the prototype successfully collected data under moonlit skies, including using a BioSHADE (shadowband) accessory to measure direct and diffuse components of moonlight. The prototype successfully proved the concept but had only one channel. A commercial product with 7 channels is currently under development. The new system will support ocean color research using both Sun and Moon as light sources.

An article featuring OCULLAR was published by NASA is here.

 

Biospherical Instruments introduces the GUVis-3511

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GUVis-3511 radiometer configured with BioSHADE and BioGPS.GUVis-3511 radiometer configured with BioSHADE and BioGPS.Biospherical Instruments has just released the GUVis-3511, the latest member of BSI's line of atmospheric radiometers. The GUVis-3511 is based on BSI’s proprietary microradiometer technology and available with up to 19 channels, ranging from 305 to 1,640 nm.  The instrument can also be equipped with a shadowband accessory to determine the direct solar irradiance. Depending on configuration, the GUVis-3511 affords the measurement of the UV Index and the retrieval of aerosol optical depth, cloud optical thickness, and total column ozone. Click here for more information and here for a paper published in Atmospheric Measurement Techniques using the instrument for shipborne measurements of aerosol optical depth.

 

New Product Announcements

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  • C-PrOPS: Compact-Propulsion Option for Profiling Systems. C-PrOPS is an auxiliary technology that adds dual thruster-based dynamic positioning to the deployment package known as C-OPS. The Compact Thruster Remote Accessory (C-TRAC) is a wireless unit to control C-PrOPS.
  • Biospherical Instruments has just released the GUVis-3511, the latest member of BSI's line of atmospheric radiometers. The GUVis-3511 is based on BSI’s proprietary microradiometer technology and available with up to 19 channels, ranging from 305 to 1,640 nm.  The instrument can also be equipped with a shadowband accessory to determine the direct solar irradiance. Depending on configuration, the GUVis-3511 affords the measurement of the UV Index and the retrieval of aerosol optical depth, cloud optical thickness, and total column ozone. Click here for more information.
  • C-OPS: Compact Optical Profiling System. Optimized for ocean color and aquatic remote sensing studies, C-OPS instruments use clusters of 19 microradiometers to measure the vertical distribution of spectral radiance and irradiance under water, as well as incident global irradiance above the water's surface. To avoid influences from the shadow of the boat or dock, the frame can be optimized for either slow descent rates for work in very shallow (e.g. < 3 m) and coastal waters, or faster descent rates for observations in the open ocean. 
  • AMOURAdvanced Multi-purpOse Usb Radiometer. AMOUR is a high-speed USB handheld radiometer for research and engineering in the laboratory or field.
 

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