Abstract
Determination of the water-leaving spectral radiance using in-water instrumentation requires measurements of the upwelling spectral radiance (L u) at several depths. If these measurements are separated in time, changes in the measurement conditions result in increased variance in the results. A prototype simultaneous multi-track system was developed to assess the potential reduction in the Type A uncertainty in single set, normalized water-leaving radiance achievable if the data were acquired simultaneously. The prototype system employed a spectrograph and multi-track fiber-coupled CCD-detector; in situ in-water tests were performed with the prototype system fiber-coupled to a small buoy. The experiments demonstrate the utility of multi-channel simultaneous data acquisition for in-water measurement applications. An example of the potential impact for tracking abrupt responsivity changes in satellite ocean color sensors using these types of instruments as well as for the satellite vicarious calibration is given.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 6680 |
| DOIs | |
| State | Published - 2007 |
| Event | Coastal Ocean Remote Sensing - San Diego, CA, United States Duration: Aug 26 2007 → Aug 27 2007 |
Other
| Other | Coastal Ocean Remote Sensing |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 8/26/07 → 8/27/07 |
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Keywords
- Buoy
- CCD
- Fiber-optic
- Ocean color
- Prototype
- Radiance
- Spectrograph
- Validation
- Vicarious calibration
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Simultaneous measurement of up-welling spectral radiance using a fiber-coupled CCD spectrograph. / Yarbrough, Mark; Flora, Stephanie J.; Feinholz, Michael E.; Houlihan, Terrence; Kim, Yong Sung; Brown, Steven W.; Johnson, B. Carol; Voss, Kenneth; Clark, Dennis K.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6680 2007. 66800J.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Simultaneous measurement of up-welling spectral radiance using a fiber-coupled CCD spectrograph
AU - Yarbrough, Mark
AU - Flora, Stephanie J.
AU - Feinholz, Michael E.
AU - Houlihan, Terrence
AU - Kim, Yong Sung
AU - Brown, Steven W.
AU - Johnson, B. Carol
AU - Voss, Kenneth
AU - Clark, Dennis K.
PY - 2007
Y1 - 2007
N2 - Determination of the water-leaving spectral radiance using in-water instrumentation requires measurements of the upwelling spectral radiance (L u) at several depths. If these measurements are separated in time, changes in the measurement conditions result in increased variance in the results. A prototype simultaneous multi-track system was developed to assess the potential reduction in the Type A uncertainty in single set, normalized water-leaving radiance achievable if the data were acquired simultaneously. The prototype system employed a spectrograph and multi-track fiber-coupled CCD-detector; in situ in-water tests were performed with the prototype system fiber-coupled to a small buoy. The experiments demonstrate the utility of multi-channel simultaneous data acquisition for in-water measurement applications. An example of the potential impact for tracking abrupt responsivity changes in satellite ocean color sensors using these types of instruments as well as for the satellite vicarious calibration is given.
AB - Determination of the water-leaving spectral radiance using in-water instrumentation requires measurements of the upwelling spectral radiance (L u) at several depths. If these measurements are separated in time, changes in the measurement conditions result in increased variance in the results. A prototype simultaneous multi-track system was developed to assess the potential reduction in the Type A uncertainty in single set, normalized water-leaving radiance achievable if the data were acquired simultaneously. The prototype system employed a spectrograph and multi-track fiber-coupled CCD-detector; in situ in-water tests were performed with the prototype system fiber-coupled to a small buoy. The experiments demonstrate the utility of multi-channel simultaneous data acquisition for in-water measurement applications. An example of the potential impact for tracking abrupt responsivity changes in satellite ocean color sensors using these types of instruments as well as for the satellite vicarious calibration is given.
KW - Buoy
KW - CCD
KW - Fiber-optic
KW - Ocean color
KW - Prototype
KW - Radiance
KW - Spectrograph
KW - Validation
KW - Vicarious calibration
UR - http://www.scopus.com/inward/record.url?scp=42149182020&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=42149182020&partnerID=8YFLogxK
U2 - 10.1117/12.735016
DO - 10.1117/12.735016
M3 - Conference contribution
SN - 9780819468284
VL - 6680
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -