Haverhill, MA “ SPECTRAL EVOLUTION provides portable spectroradiometers that can be used to take albedo measurements in the field. Spectroradiometers include the SR-6500, RS-8800, RS-5400, PSR+, RS-3500 and
PSR-1100f. These spectroradiometers and FOV lenses are calibrated to NIST standards for absolute radiance measurements. Using a calibrated straight or right angle diffuser, a spectra of the downwelling irradiance can be accurately measured.
Albedo is a measurement of the electromagnetic solar radiation reflected by the earth's surface divided by the radiation incident on its surface. It is a fraction of the incident sunlight that a surface reflects. Albedo has a value from zero to one, with zero being a black totally absorbing surface and one being a mirror-like completely reflecting surface. Bright earth albedos like snow, clouds and ice have albedos ranging from 50% to 90% while dark surfaces such as asphalt roads, dark soils and forests have albedos ranging from 5% to 20%.
All our portable spectroradiometers have the following features:
- Wide range of accessories including direct attach lenses, FOV lenses, contact probes, pistol grip and unique leaf clip
- Auto-shutter, auto-exposure and auto dark correction
- Rugged design with no moving optical parts for field use
- Optional rugged tablet with digital camera, voice note recording, GPS and more.
- DARWin SP Data Acquisition software stores all scans and associated data as ASCII files for use with other third party programs, like ENVI or chemometrics software such as Unscrambler from Camo Analytics
For more information on measuring albedo, visit:
About SPECTRAL EVOLUTION
Established in 2004, SPECTRAL EVOLUTION is a leading manufacturer of laboratory and handheld portable spectrometers and spectroradiometers. SPECTRAL EVOLUTION instruments are used worldwide for many mission-critical lab and field applications in mining, remote sensing, vegetative studies, ground truthing, environmental and climate studies, developing satellite calibrations, and more, due to their reliable, robust, rugged design and user-friendly one-touch features.
SPECTRAL EVOLUTION maintains a facility in Haverhill, Massachusetts which houses design, prototyping, manufacturing and service facilities for the instruments that it markets and sells worldwide, either through direct sales or through distributor agents.
