HyperOCR Hyperspectral Radiometer
Satlantic designed the Hyperspectral ocean colour radiometer (HyperOCR) sensor series for applications where performance, size and power are key constraints. Our hyperspectral radiometers can be mounted on real-time profilers, moored on autonomous deepwater buoys, autonomous underwater vehicles as well as on ships and airplanes for above-water optic applications.
The HyperOCR optical sensors feature enhanced performance specifications such as increased sensitivity and resolution, providing significant advantages for key applications such as above-water and profiling radiometry. The HyperOCR sensors are fully digital optical packages, providing 136 channels of optical data from 350 to 800 nm.
- Irradiance and Radiance radiometers for in-water and in-air applications 350 - 800 nm calibrated range
- Fully characterized cosine response Integrated shutter for accurate dark correction Networking capability
- Data logging and processing software included Fast sampling rate (up to 3 Hz)
- Compatible with the Bioshutter anti-biofouling solution
Read the latest publications using Satlantic Hyperspectral Radiometers on our References tab above.
Read all publications using Satlantic Hyperspectral Radiometers on Google Scholar.
View Live data from Satlantic Hyperspectral Radiometers:
- BOUSOLE long-term oceanic mooring in the Western Mediterranean sea
- Lucinda Jetty Coastal Observatory, part of Australlia's Integrated Marine Observing System (IMOS)
Please contact our Sales Department for additional information.
|Field of View:||Cosine Response (350-800 nm)|
3% @ 0 - 60º
10% @ 60 - 85º
|Typical NEI*||1.0 x 10 -3 µW cm -2 nm -1||1.5 x 10 -3 µW cm -2 nm -1|
|Saturation*||9.0 µW cm -2 nm -1||13.5 µW cm -2 nm -1|
* at 500nm with 1024 ms integration time
|Field of View:||11.5º||8.5º|
|Typical NER*:||5.3 x 10 -5 µW cm -2 nm -1 sr -1||9.0 x 10 -5 µW cm -2 nm -1 sr -1|
|Saturation*:||0.5 µW cm -2 nm -1||0.8 µW cm -2 nm -1|
* at 500nm with 1024 ms integration time
|Spectrograph Range:||305 - 1100 nm|
|Factory Calibration:||350 – 800 nm|
|Spectral Sampling:||3.3 nm/pixel|
|Spectral Accuracy:||0.3 nm|
|Spectral Resolution:||10 nm|
|Stray Light:||<1×10 -3|
|Detectors:||256 channel silicon photodiode array|
|Entrance Slit:||70 x 2500 µm|
|Pixel Size:||25 x 2500 µm|
|Acquisition Module:||16 bit ADC|
|Integration Time:||4 - 2048 ms (adaptive gain feature), 1 ms resolution|
|Frame Rate:||3 Hz (at 128 ms integration time)|
|Data Rate:||9600 – 115200 bps (user selectable)|
|Telemetry Interface:||RS-422 / RS-232 (isolated)|
|Network Interface:||Proprietary Satlantic RS-485 SatNet (isolated)|
|Power Requirements:||9 – 18 or 18 – 72 VDC ranges (2 Watts nominal)|
|Height:||39.9 cm||39.9 cm||36.2 cm||36.2 cm|
|Diameter:||6.0 cm||6.0 cm||6.0 cm||6.0 cm|
|Weight:||1.0 kg||1.0 kg||1.0 kg||1.0 kg|
|Depth Rating:||250 m (500 m optional)||250 m (500 m optional)||250 m (500 m optional)||250 m (500 m optional)|
|Operating Temperature:||-10 to +50ºC||-10 to +50ºC||-10 to +50ºC||-10 to +50ºC|
SatView is a real-time interactive data logging and display application for use with Satlantic radiometers. SatView makes it easy to connect to your Satlantic instruments and view time series, spectral plots, and depth profiles while capturing data for subsequent conversion and post-processing.
SatView features include:
- Easy set up and configuration management
- Serial communications direct to instruments
- Real-time graphical display of incoming data
- Ancillary sensor integration
- Custom log file headers
- Surface pressure tare
- Support for profiling, in-situ and towing deployments
Download SatView 2.9.5
SatView 2.9 provides Windows 7 compatibility, improved PAR sensor support, wavelength range settings for spectral views, additional cast card fields for post-processing, support for up to 96 serial ports, GPS data validation and many more. Please refer to the release notes for a detailed list of recent improvements.
SatCon is a software utility for converting raw binary data, as logged by SatView, into readable ASCII text suitable for import by third party applications such as spreadsheets or databases. Data can be extracted in calibrated physical units or raw binary counts. SatCon can be operated interactively through a user friendly graphical interface, or in batch mode as a background process.
For minimum system requirements, installation instructions, and new features, please refer to the release notes in the SatCon User Manual.
Download SatCon 1.5.5
ProSoft is an interactive graphical data processing and extraction application for Satlantic sensors. It is highly configurable with optional batch mode operation and a rich user interface. Supported data products include:
- Diffuse attenuation coefficient
- Solar utilities
- Photosynthetically available radiation
- Pigment modeling
- Energy fluxes
- Water leaving radiance
- Reflectance data products
- Normalized water leaving radiance
- Water properties
For minimum system requirements, installation instructions, and new features, please refer to the release notes and manual.
Download ProSoft 7.7.19
ProSoft 7.7.19 provides a number of key improvements including support for ancillary SAS sensors, support for BETA_IRED and BETA_GREEN sensors to calculate backscattering, corrected backscattering coefficient units, robust handling of corrupt timer data, HyperSAS IR camera integration, interruptable processing, and more. For a detailed list of recent fixes and features, please refer to the release notes.
Why do hyperspectral HOCR sensors require two calibration files?
HOCR sensors output two distinct frame types (light and dark). Thermal dark current changes that occur within the spectrograph are corrected across the full spectrum with the use of a mechanical dark shutter that closes periodically in the radiometer. This creates a unique frame of data that must be collected separately from the light data. SATView requires both calibration files so that it collects both data outputs.
Can I use in air irradiance sensors in water and vice versa?
Satlantic 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 air. In air irradiance sensors provide an excellent cosine response in air but not in water.
What are SIP files?
Files that are delivered with Satlantic and third party equipment to describe the sensors data output and calibration coefficients come in two types. Calibration files or *.cal files and telemetry definition format files or *.tdf files. In some cases, systems are created that network many sensors together and their combined data is provided in one serial output.
The simplest example is a HOCR sensor that generates both light and dark frames. A more complex example is a HPROII profiling system that may contain as many as 5 sensors and 7 individual calibration and tdf files. These files must be used to both collect and process the data.
This can become quite confusing to keep track of all these files so Satlantic developed SIP files. All CAL and TDF files required for a system are zipped using winzip and the extension changed from *.ZIP to *.SIP. The file name includes the system description (usually the network master serial number) and the creation date. This SIP file can then be used in place of individual files to collect and process data.
- Zibordi, G.; Berthon, J.F.; Melin, F.; & Alimonte, D.D. (2010) Cross-site consistent in situ measurements for satellite ocean color applications: The BiOMaP radiometeric dataset. Remote Sensing of Environment. doi:10.1016/j.rse.2011.04.013 Read Now
- Gordon, H.R, Lewis, M.R, McLean, M.R, Twardowski, M.S, Freeman, S.A., Voss, K.J., Boynton, G.C. (2009) Spectra of particulate backscattering in natural waters Optical Express 17(18) 16192-16208 Read Now
- Wijesekera, H.W., Pegau, W.S., Boyd, T.J. (2005) Effects of surface waves on the irradiance distribution in the upper ocean. Optics Express 13(23): 9257-64. Read Now
- Chang, G.C., Dickey, T.D. (2004) Coastal ocean optical influences on solar transmission and radiant heating rate. Journal of Geophysical Research doi:10.1029/2003JC001821. Read Now
The Bioshutter II is an autonomous underwater shutter attachment designed for use with Satlantic radiometers. The primary purpose of the shutter is to prevent marine bio-fouling of the sensor optics in moored, time-series application. Copper, and copper-based alloys have long been known to have good resistance against bio fouling and have been used in a diverse variety of commercial applications. Scientists working at the University of California Santa Barbara Ocean Physics Lab under the auspices of the National Ocean Partnership Programs' (NOPP) Ocean System of Chemical, Optical, and Physcial Experiments (O-SCOPE) project developed an underwater shutter device for use with instruments such as Satlantic's OCR-500 and HyperOCR series instruments. The Satlantic Bioshutter II device builds upon the success of this instrument by combining an innovative copper shutter and an input power controlled motor drive assembly to ensure robust operation in harsh marine environments.Photo credit: Boussole