Satellite and airborne hyperspectral and multispectral imaging, are technologies used in a wide range of remote sensing applications. These tools allow researchers to detect patterns and identify surface materials.

Correlating and confirming the data acquired from hyperspectral and multispectral imagery requires field work. Ground truthing using a field portable spectroradiometer improves the accuracy and adds detail to the basic data provided by the hyperspectral or multispectral imagery. Reflectance spectroscopy in the field can be performed without sample preparation or destruction for both geological/geochemical and vegetation applications.

SPECTRAL EVOLUTION /provides lightweight, portable, and powerful field spectroradiometers for ground truthing hyperspectral and multispectral data in:

• Geological remote sensing
• Vegetation studies
• Forest canopy research
• Water body studies
• Environmental studies
• Climate change observation and measurement
• Ice and snow research
• Crop and soil studies

Our PSR+ 3500 and NaturaSpec™ spectroradiometers and the RS-3500 Remote Sensing Bundle are well-suited for correlating satellite data in the field and offer the following features:

• Fast, full spectrum UV/VIS/NIR with a single scan
• Autoshutter, autoexposure, auto-dark correction for one- touch scanning
• Superior field reliability with no moving optic parts
• Lightweight (8.94 lbs) and compact
• Rechargeable, lightweight lithium-ion batteries
• Removable fiber optic cable - field swappable
• Best in class NER (low noise equivalent radiance)
• Bluetooth and USB connectivity
• Optional, rugged handheld tablet with auto-focus digital camera, GPS and sunlight readable display
• DARWin SP Data Acquisition software saves files as ASCII for use with third party analysis software, has pull-down menus for access to 19 vegetation indices

DARWin SP Data Acquisition software provides access to 19 vegetation indices via built-in pull-down menus including NVDI, SR, SAVI, ARVI, EVI, IPVI, PRI, SBI, PAR, and more. In addition, since DARWin saves your spectra as ASCII files, they can be used with a wide range of other software programs.

There are numerous satellites providing images and data for remote sensing researchers, including:

• ALOS
• AVNIR-2
• AVIRIS
• ASTER
• Bilsat
• BelKA-2
• CERES
• COBAN
• Cartosat-2
• DEIMOS-1
• DMC-SLIM6
• EnMAP
• Envisat
• ESA/ERS satellites
• GeoEye-1
• HyspIRI
• Hyperion
• IKONOS 
• IRS-1C & ID
• IRS-P6
• J-ERS-1
• KOMPSAT-1 & -2
• KVR-1000
• LANDSAT 7 & 8 LDCM
• MERIS
• MODIS
• QuickBird
• RapidEye
• Resurs-DK1 & -P
• Spot 1-5
• TERRA
• TH-01
• WorldView 2
• USGS EROS

A number of software programs are used by researchers to interpret and analyze hyperspectral imagery and data:

• IDRISI
• ERDAS
• ENVI
• ERMapper
• ArcGIS
• PCI
• Multispec
• IPW
• Ilwis
• SPRING
• OSSim
• GRASS