Environmental Engineering Reference
In-Depth Information
Ocean color remote sensing could be applied to estimate DOC transport in
river-ocean transects, depending on the robust empirical relationships between
DOC and CDOM, CDOM and salinity, and salinity and river flow (del Castillo
and Miller
2008
). A flow chart is depicting the method and rationale for the esti-
mate of DOC transport (Fig.
11
). The success of this approach depends on four
conditions (del Castillo and Miller
2008
): (1) DOC and CDOM must behave con-
servatively at the study site; (2) The relationship between CDOM and DOC in the
river end member must remain constant; (3) One should be able to derive CDOM
from satellite ocean color measurements; (4) Salinity in the study area should
Fig. 11
Flow chart showing the method and rational of DOC transport. Boxes represent empiri-
cal relationship, plain text represent the outputs of these relationships.
X
is the remote sensing
reflectance ratio used in this study, and DOC
p
and DOC
0
are the concentrations of DOC in the
river plume and river end-member respectively.
Data source
del Castillo and Miller (
2008
)
