derived_inputs.md

Carder bbp - 547nm wavelength, total backscatter to Morel backscatter (Carder et al. 1999; Cannizaro et al. 2008)

Carder_bbp(555) = −0.00182 + 2.058 * rsr(555)

Morel bbp - 547nm wavelength (Morel 1988)

Morel_bbp(555) = (0.3 * (chl)^0.62) * (0.002 + 0.02 * (0.5 − 0.25 * log10(chl)))

CMbbp ratio - 547nm wavelength (Tomlinson et al. 2009)

Carder_bbp(555)/Morel_bbp(555) <1.0 = Kbrevis bloom (Cannizaro 2008); used chl_oc4 <2.0 = Kbrevis bloom (Tomlinson et al. 2009); used Stumpf et al 2000 necessitating change

ssnLw488 - spectral shape at 488nm (Wynne et al . 2008; assume not significantly different from ssnLw490, Tomlinson et al. 2009)

ss(lambda) = nLw(lambda) - nLw(lambda_-) - (nLw(lambda_+) - nLw(lambda_-)) * (lambda - lambda_-)/(lambda_+ - lambda_-) lambda_- is next lower bandwidth from lambda lambda_+ is next higherbandwidth from lambda negative ss(490) = Kbrevis bloom

benthic resuspension of chl

chl(res) ~ rsr(670) anomaly calculated similar to chl anomaly then multiply rsr(670)_anom by 200 ug sr l-1 to convert to chlorophyll (Wynne et al. 2005, 2006) corrected_chlorophyll_anomaly = original_chl_anomaly - chl(res) standard chl_oc4 overestimates chlorophyll in coastal FL; use Stumpf et al. 2000

Kbrevis ensemble

inputs: chl_anom, ss(490), CMbbp if all three detect = red if chl_anom and ss(490) or CMbbp = turquoise or green, respectively if chl_anom exclusively = blue

Fluorescent line height derived product

threshold of above 0.12 W m−2 μm−1 sr−1 were associated with K. brevis concentration between 104 and 106 cells L−1 (Hu et al. 2005) FLH anomaly maybe suitable replacement for chl_anom (Tomlinson et al. 2009)