For Net Community Productivity Data, column 1 is time of day (fractional day); column 2 is Net community Productivity, mmol/m2/hr
Net Community Producitivity is calculated based on changes in O2 within the benthic boudary layer as a function of turbulent water velocity (Kz) as described in McGillis et al. (2011)
Net Ecosystem Calcifiication is calculated based on changes in Total Alkalinity (TA) within the benthic boundary layer as a function of turbulent water velocity (Kz) as described in McGillis et al. (2011).
Secondary measurement of net ecosystem calcification This is another way to measure NEC, using a different technique. The technique for which these data (NCP_NEC_CROSS_CHEECA_AOAT_2012_SEPT.dat) are based on differences in pH and O2 in the benthic boundary layer based as a function of turbulent water velocity (Kz) as described in McGillis et al. (2011). These data are only available in Sept 2012 for FY12.
REF CITED: McGillis, W. R., Langdon, C., Loose, B., Yates, K. K., & Corredor, J. (2011). Productivity of a coral reef using boundary layer and enclosure methods. Geophysical Research Letters, 38, 3611.
-9 in the data set indicates that the parameter is unavailable