Remote Sensing: Measure vegetation
reflectance accurately, automatically and remotely with the UniSpec-DC
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UniSpec-DC Spectral Analysis System
For simultaneous
measurement
of both incident and reflected light under
any sky conditions - including clouds
The UniSpec-DC is a dual channel, field
portable instrument capable of unattended, simultaneous
measurement of incident and reflected light. It allows
sampling under any sky conditions, including clouds.
Recent studies have shown that narrow band spectral
indices can track diurnal and seasonal trends in both
leaf to stand-level photosynthetic activity and can
detect periods of photosynthetic down-regulation due to
water, nutrient and temperature stress. Additional
studies suggest that thermal bands, particularly when
combined with optical remote sensing, may be able to
provide additional information on the degree of
photosynthetic down-regulation under water stress.
Perhaps even more significant is the possibility that
the controls on respiratory carbon flux can also be
revealed through a combination of remote sensing tools
that includes the UniSpec-DC. It is a truly,
self-contained system that does not require an external
PC for operation.
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Powerful User
Interface
Unlike other remote sensing
instruments, the UniSpec-DC features an
innovative, ergonomic system console designed
specifically for demanding field applications.
It has a built-in user interface including
integral computer, large, full color graphical
LCD, keyboard and touchpad for user inputs,
RS232 and USB serial ports and PCMCIA slot.
NO LAPTOP COMPUTER IS REQUIRED.
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Software & Data
Analysis
The UniSpec-DC is supplied
complete with a powerful, yet user friendly,
software package that runs under the Windows CE.NET operating system. System setup and
programming is very simple. In addition to
measuring, viewing and storing data, the user
has all the facilities required for comparing
stored records and calculation of common
vegetation indices such as NDVI, mNDVI, PRI, WBI,
Summed Green Reflectance and Red/Green Ratio. |
Software Features
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Manual or auto-scan
capability
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User selectable
integration time
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Manual or automatic graph
scaling
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Switch from raw data to
reflectance/absorbance data
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Calculation of common
indices
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Perform mathematical
functions on stored data
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Stored data can be
exported to your PC and imported into your
favorite spread sheet program.
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Manual or auto-save
capability
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On-line help system
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Common Applications
Include..... |
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Ground
Truthing
Photo courtesy
of Michigan State University |
Landscape
Cover
Photo courtesy
of California State University
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Optical
Sampling from Flux Towers
Photo courtesy
of San Diego State University
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A
range of accessories are available for use with
the UniSpec-DC for remote sensing applications
including FOV lens, fiber optics, reference
standards and much more. An interesting link for researchers interested
in optical sampling: SpecNet
Spectral Network.
UniSpec-DC Data Sheet
UniSpec-DC Application Notes
UniSpec Publications
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