Lab 9 Hydrolight and Ecolight. Ex. 1: Inputing measured Chl(z) data.

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Presentation transcript:

Lab 9 Hydrolight and Ecolight

Ex. 1: Inputing measured Chl(z) data

Ex. 2: inputting IOPs from a, c, and b b sensors

Ex. 3: simulating Case 2 water Increased mineral concentration increases Rrs in the 550nm wavelengths.

Ex. 3: simulating Case 2 water Influence of the mineral composition on the Rrs

Ex. 4: simulating optically shallow water

Ex. 5: Hydrolight User Support Customer complained about bad Rrs curve Supplied AC9 input file – Obviously bad data existed in file Uncorrected customer curve did not match curve customer reported Did the customer even use his own bad data?

Ex. 5: Apparently Not

Playing with our own data… Measurements and Hydrolight comparison

Predicted vs. Measured R rs HydroLight Input: ParameterValueInstrumentDate Absorption (a)0.8 – 0.0 m -1 ACS7/10 Attenuation (c)4.0 – 2.0 m -1 ACS7/10 b b /b0.01BB9 & AC97/11 Chlorophyll2.3 mg/m 3 Extraction method7/12 CDOMVariableACS with Filter7/10 Depth5 metersGuess- a*a*Curt’s File (astarchl)-- Clouds10%Eye7/15 Bottom TypeDark SedimentGuess- Wind Speed2.0 mGuess7/15

Predicted vs. Measured R rs Reasonable, given that measurements were taken over a week long period (not ready to ask for my money back yet). Captures the high absorption of CDOM in the blue, something not capture by the case 1 models.