47 
a ppend ix 
Derivation of Regressions 
DATAFLOW Report on the Lumping vs. 
Splitting of Regions for MDDNR 
DATAFLOW K d vs. Turbidity Regressions 
and Calibration 1 
This report addresses a series of questions for Maryland K d -Turbidity data using a 
suite of analyses. The questions and simple answers are summarized here. More 
detailed discussion on the methods and results follow below. The following abbrevi¬ 
ations are used throughout this report text: 
ANCOVA 
Chi or chla 
Coeff Var 
DATAFLOW 
K d 
Logchla 
MD DNR 
rl_5turb 
R-square 
Root mse 
Sal 
Turb 
Trib 
VIMS 
= Analysis of covariance (ANCOVA) 
= chlorophyll a (ug/L) 
= Coefficient of Variation 
= flow through data collection system for water quality 
monitoring 
= light attenuation coefficient 
= logarithmic transformation of chlorophyll a 
= Maryland Department of Natural Resources 
= root 1.5 transformation of turbidity 
= coefficient of determination 
= root mean square error 
= salinity (ppt) 
= turbidity (ntu) 
= tributary 
= Virginia Institute of Marine Science 
'Appendix D is the report by Elgin Perry. Ph.D. 12/27/2006. Notes on Lumping vs Splitting Kd = 
f(turbidity) calibration. 
appendix d • Derivation of Regressions 
