Experimental analysis of the measurement precision of spectral water-leaving radiance in different water types: reply

Abstract

Reliable in situ water-leaving radiance ( L w ) measurements are critical for calibrating and validating the ocean color products from remote platforms (e.g., satellite). In an experimental effort, Wei et al. [ Opt. Express 29 , 2780 ( 2021 ) 10.1364/OE.413784 ] reported that the on-water radiometry allows for high-precision radiance determination. Zibordi [ Opt. Express 29 , 19214 ( 2021 ) 10.1364/OE.421786 ] questioned the use of the “1% radiometry” term in the former and commented on the data collection with the sensor’s optical window submerged in water. This reply responds to the comments and discusses the on-water data processing protocol, which shows the obtained L w is not affected by the questions raised therein.