AESA	Executive Water Management Agency of the State of Paraíba
CECP	Complexity–entropy causality plane
$H$	Water level in the elevation-storage context; normalized permutation entropy when written as $H\left[P\right]$
$V$	Stored volume
$V\left(H\right)$	Elevation-storage relation
$\Delta V_t$	Storage change between two consecutive reports
$\delta V_t$	Daily normalized storage increment
$D$	Embedding dimension
$\tau$	Ordinal delay
$P=\left\{p_i\right\}$	Bandt-Pompe ordinal-pattern probability distribution
$H\left[P\right]$	Normalized permutation entropy
$C\left[P\right]$	Martín-Plastino-Rosso statistical complexity
$E$	Euclidean distance from the CECP point $(H,C)$ to $(1,0)$
$W$	Sliding-window length in observations
$s$	Sliding-window step in observations
$O(W,s)$	Percentage overlap between consecutive sliding windows
$f_0$	Fraction of exact zero or numerically zero storage increments
$f_{+}$	Fraction of positive storage increments
$f_{\mathrm{t}\mathrm{i}\mathrm{e}}$	Fraction of embedding vectors containing tied values
$S_r$	Sample-relative structural magnitude for reservoir $r$
$R_r$	Interperiod CECP distance range for reservoir $r$
$M_r$	Recent sliding-window mobility for reservoir $r$