NDLI: Microradiometers: Hybrid instrument building blocks for next-generation ocean color instruments

Content Provider	IEEE Xplore Digital Library
Author	Hooker, S.B. Morrow, J.H.
Copyright Year	2013
Description	Author affiliation: Biospherical Instrum. Inc., San Diego, CA, USA (Morrow, J.H.) \|\| NASA/GSFC, Greenbelt, MD, USA (Hooker, S.B.)
Abstract	NASA has a current and next-generation requirement to collect high-quality in-situ data for the vicarious calibration of ocean color satellite sensors and to validate the algorithms that use the remotely sensed observations. As aquatic remote sensing shifts from the legacy perspective of optically simplistic open oceans toward next-generation observations of myriad optically complex water masses in the coastal zone and polar regions, instrument deployments from small platforms are a necessity. In response to this need, NASA funded the development of a new approach to measuring light: the microradiometer. A microra-diometer consists of a photodetector, preamplifier with controllable gain, high resolution (24 bit) analog-to-digital converter (ADC), microprocessor, and an addressable digital port. The microradiometer interface electronics allows sensors that were not traditionally considered “radiometers” to be treated in like fashion by the system electronics, greatly simplifying the addition of other detectors, such as temperature, water pressure, platform angle, or even supply voltage and current. This latter feature inherently leads to the concept of hybrid microradiometers, and because microradiometers simply plug onto the aggregator board stack, unique configurations of hybrid sensing and detecting capabilities are readily imagined.
Sponsorship	IEEE Oceanic Eng. Soc.
Starting Page	1
Ending Page	7
File Size	1573164
Page Count	7
File Format	PDF
ISBN	9780933957404
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Sea measurements Optical sensors Radiometers Oceans Optical imaging hybrid instruments microradiometer radiometer photodetector apparent optical properties (AOPs) radiance irradiance profiles
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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