Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans
The hardware and software capabilities of the compact-profiling hybrid instrumentation for radiometry and ecology (C-PHIRE) instruments on an unmanned surface vessel (USV) are evaluated. Both the radiometers and USV are commercial-off-the-shelf (COTS) products, with the latter being only minimally m...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/5/1084 |
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| author | Stanford B. Hooker Henry F. Houskeeper Randall N. Lind Raphael M. Kudela Koji Suzuki |
| author_facet | Stanford B. Hooker Henry F. Houskeeper Randall N. Lind Raphael M. Kudela Koji Suzuki |
| author_sort | Stanford B. Hooker |
| collection | DOAJ |
| description | The hardware and software capabilities of the compact-profiling hybrid instrumentation for radiometry and ecology (C-PHIRE) instruments on an unmanned surface vessel (USV) are evaluated. Both the radiometers and USV are commercial-off-the-shelf (COTS) products, with the latter being only minimally modified to deploy the C-PHIRE instruments. The hybridspectral C-PHIRE instruments consist of an array of 18 multispectral microradiometers with 10 nm wavebands spanning 320–875 nm plus a hyperspectral compact grating spectrometer (CGS) with 2048 pixels spanning 190–1000 nm. The C-PHIRE data were acquired and processed using two architecturally linked software packages, thereby allowing lessons learned in one to be applied to the other. Using standard data products and unbiased statistics, the C-PHIRE data were validated with those from the well-established compact-optical profiling system (C-OPS) and verified with the marine optical buoy (MOBY). Agreement between algorithm variables used to estimate colored dissolved organic matter (CDOM) absorption and chlorophyll a concentration were also validated. Developing and operating novel technologies, such as the C-PHIRE series of instruments, deployed on a USV increase the frequency and coverage of optical observations, which are required to fully support the present and next-generation validation exercises in radiometric remote sensing of aquatic ecosystems. |
| first_indexed | 2024-03-09T20:24:34Z |
| format | Article |
| id | doaj.art-bd1f1a0d4a2040d4bb3fc1eb1cb34479 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T20:24:34Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-bd1f1a0d4a2040d4bb3fc1eb1cb344792023-11-23T23:41:11ZengMDPI AGRemote Sensing2072-42922022-02-01145108410.3390/rs14051084Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal OceansStanford B. Hooker0Henry F. Houskeeper1Randall N. Lind2Raphael M. Kudela3Koji Suzuki4NASA Goddard Space Flight Center, Greenbelt, MD 20771, USADepartment of Geography, University of California, Los Angeles, CA 90095, USABiospherical Instruments Inc., San Diego, CA 92110, USAOcean Sciences Department, University of California, Santa Cruz, CA 95064, USAFaculty of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, JapanThe hardware and software capabilities of the compact-profiling hybrid instrumentation for radiometry and ecology (C-PHIRE) instruments on an unmanned surface vessel (USV) are evaluated. Both the radiometers and USV are commercial-off-the-shelf (COTS) products, with the latter being only minimally modified to deploy the C-PHIRE instruments. The hybridspectral C-PHIRE instruments consist of an array of 18 multispectral microradiometers with 10 nm wavebands spanning 320–875 nm plus a hyperspectral compact grating spectrometer (CGS) with 2048 pixels spanning 190–1000 nm. The C-PHIRE data were acquired and processed using two architecturally linked software packages, thereby allowing lessons learned in one to be applied to the other. Using standard data products and unbiased statistics, the C-PHIRE data were validated with those from the well-established compact-optical profiling system (C-OPS) and verified with the marine optical buoy (MOBY). Agreement between algorithm variables used to estimate colored dissolved organic matter (CDOM) absorption and chlorophyll a concentration were also validated. Developing and operating novel technologies, such as the C-PHIRE series of instruments, deployed on a USV increase the frequency and coverage of optical observations, which are required to fully support the present and next-generation validation exercises in radiometric remote sensing of aquatic ecosystems.https://www.mdpi.com/2072-4292/14/5/1084hybridspectralhyperspectralmultispectralradiometryvicarious calibrationalgorithm validation |
| spellingShingle | Stanford B. Hooker Henry F. Houskeeper Randall N. Lind Raphael M. Kudela Koji Suzuki Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans Remote Sensing hybridspectral hyperspectral multispectral radiometry vicarious calibration algorithm validation |
| title | Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans |
| title_full | Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans |
| title_fullStr | Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans |
| title_full_unstemmed | Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans |
| title_short | Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans |
| title_sort | verification and validation of hybridspectral radiometry obtained from an unmanned surface vessel usv in the open and coastal oceans |
| topic | hybridspectral hyperspectral multispectral radiometry vicarious calibration algorithm validation |
| url | https://www.mdpi.com/2072-4292/14/5/1084 |
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