Adjustment of ocean color sensor calibration through multi-band statistics.
The band-by-band vicarious calibration of on-orbit satellite ocean color instruments, such as SeaWiFS and MODIS, using ground-based measurements has significant residual uncertainties. This paper applies spectral shape and population statistics to tune the calibration of the blue bands against each other to allow examination of the interband calibration and potentially provide an analysis of calibration trends. This adjustment does not require simultaneous matches of ground and satellite observations. The method demonstrates the spectral stability of the SeaWiFS calibration and identifies a drift in the MODIS instrument onboard Aqua that falls within its current calibration uncertainties.
Stumpf
Richard P
RP
NOAA National Ocean Service, Silver Spring, Maryland 20910, USA. richard.stumpf@noaa.gov
Werdell
P Jeremy
PJ
D000465:Algorithms; D002138:Calibration; D003116:Color; D003124:Colorimetry / Q000295:instrumentation* / Q000592:standards; D003627:Data Interpretation, Statistical; D004784:Environmental Monitoring / Q000295:instrumentation* / Q000592:standards; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009792:Oceans and Seas; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014481:United States; D014867:Water / Q000737:chemistry*
D014867:Water