This dataset contains estimates of Euphotic Zone (EZ) depths based on mean light extinction coefficients calculated from PAR sensor readings at 5 and 100 meters from cruise RR2201 on R/V Roger Revelle (BLOOFINZ-IO, January-March 2022) in the Argo Basin region off NW Australia.
Euphotic Zone (EZ) depth was defined as the depth at which photosynthetically available radiation (PAR) was 1% of incident surface radiation. Mean light extinction coefficients (Ext Coeff, m-1) were calculated from PAR sensor readings at 5 and 100 meters from CTD downcast profiles at 1-meter resolution according to the equation:
Ext Coeff = -ln(PAR100m/PAR5m)/95.
Euphotic Zone (m) was calculated as EZ = -ln(0.01)/(Ext Coeff).
The RR2201 cruise report can be found at http://hdl.handle.net/1834/43464.
Landry, M. R. (2024) Estimates of Euphotic Zone (EZ) depths from R/V Roger Revelle cruise RR2201 in the Eastern Indian Ocean (Argo Basin) from February to March 2022. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-11-18 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.943861.1 [access date]
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