  We analyze a series of three-dimensional magnetohydrodynamic numerical
simulations of magnetic reconnection in a model solar corona to study the
effect of the guide field component on quasi-steady state interchange
reconnection in a pseudostreamer arcade configuration. This work extends the
analysis of \citet{Edmondson2010b} by quantifying the mass density enhancement
coherency scale in the current sheet associated with magnetic island formation
during the nonlinear phase of plasmoid-unstable reconnection. We compare the
results of four simulations of a zero, weak, moderate, and a strong guide
field, $B_{GF}/B_0 = \lbrace 0.0 , 0.1 , 0.5 , 1.0 \rbrace$, to quantify the
plasmoid density enhancement's longitudinal and transverse coherency scales as
a function of the guide field strength. We derive these coherency scales from
autocorrelation and wavelet analyses, and demonstrate how these scales may be
used to interpret the density enhancement fluctuation's Fourier power spectra
in terms of a structure formation range, an energy continuation range, and an
inertial range---each population with a distinct spectral slope. We discuss the
simulation results in the context of solar and heliospheric observations of
pseudostreamer solar wind outflow and possible signatures of
reconnection-generated structure.
