Kd490 calculation/formula
Posted: Fri Jun 19, 2020 1:51 pm America/New_York
Dear ocean color team,
I am extracting four MODIS (Level 03) parameters SST, Chl-a, DOC, FLH and eleven reflectance bands time-series from google earth engine. I couldn't find the rest of ocean color variables. I am trying to calculate Kd490 and other parameters like Zeu_morel (euphotic depth), Zsd_morel (Secchi disk depth), tindx_morel (turbidity index) bbp_547_giop (particulate backscattering coefficient) from the reflectance bands. Which one of these variables are easy to calculate using band ratio? and what is the formula to do so? I found some formulas on this website but they seem like more theoretical formulas than practical!
I read this in one of the posts. "The input ratio for Kd490 is Rrs488 / Rrs547"
Is this formula correct for Kd490?
Thank you so much
Sincerely,
Mo.
I am extracting four MODIS (Level 03) parameters SST, Chl-a, DOC, FLH and eleven reflectance bands time-series from google earth engine. I couldn't find the rest of ocean color variables. I am trying to calculate Kd490 and other parameters like Zeu_morel (euphotic depth), Zsd_morel (Secchi disk depth), tindx_morel (turbidity index) bbp_547_giop (particulate backscattering coefficient) from the reflectance bands. Which one of these variables are easy to calculate using band ratio? and what is the formula to do so? I found some formulas on this website but they seem like more theoretical formulas than practical!
I read this in one of the posts. "The input ratio for Kd490 is Rrs488 / Rrs547"
Is this formula correct for Kd490?
Thank you so much
Sincerely,
Mo.