Recent Developments and Emerging Challenges in Tracer‐Aided Modeling
Wiley Interdisciplinary Reviews Water,
Journal Year:
2025,
Volume and Issue:
12(2)
Published: March 1, 2025
ABSTRACT
During
the
last
decade,
tracer‐aided
hydrological
models
(TAMs)
have
been
applied
in
numerous
studies
and
successfully
evolved
for
different
purposes.
Such
confirmed
value
of
tracer
data
modeling,
offering
insights
into
internal
storages,
water
sources,
flow
pathways,
mixing
processes,
ages,
which
cannot
be
derived
from
hydrometric
alone.
The
direct
coupling
tracers
flux
tracking
balance
can
reduce
model
uncertainty
through
increased
biogeochemical
process
knowledge.
More
specifically,
such
simultaneously
capture
celerity
responses
with
velocities
(and
age)
particles.
As
a
result
availability
high‐resolution
characterizing
functioning
across
Critical
Zone
entire
landscapes,
together
rapid
improvement
computing
capacity,
four
major
advances
reshaped
capability
TAMs,
we
review
this
paper:
(1)
enhanced
representation
spatial
heterogeneity,
(2)
more
explicit
conceptualization
ecohydrological
partitioning,
(3)
application
to
larger
catchment
scales,
(4)
incorporation
non‐conservative
coupled
quality
modeling.
However,
persistent
challenges
also
emerged,
particularly
relation
acquisition,
mismatches
between
information
content
scale
application,
uncertainties
structures,
as
well
adaptation
multi‐criteria
calibration.
In
review,
recent
remaining
TAMs
summarized
discussed
particular
focus
on
conservative
models.
Language: Английский
Sources and fate of CO2 along the soil–aquifer–stream–atmosphere continuum (the Orgeval headwater catchment, France)
Geoderma,
Journal Year:
2025,
Volume and Issue:
458, P. 117297 - 117297
Published: April 25, 2025
Language: Английский
BioRT‐HBV 1.0: A Biogeochemical Reactive Transport Model at the Watershed Scale
Journal of Advances in Modeling Earth Systems,
Journal Year:
2024,
Volume and Issue:
16(12)
Published: Nov. 30, 2024
Abstract
Reactive
Transport
Models
(RTMs)
are
essential
tools
for
understanding
and
predicting
intertwined
ecohydrological
biogeochemical
processes
on
land
in
rivers.
While
traditional
RTMs
have
focused
primarily
subsurface
processes,
recent
watershed‐scale
integrated
interactions
between
surface
subsurface.
These
emergent,
often
spatially
explicit
require
extensive
data,
computational
power,
expertise.
There
is
however
a
pressing
need
to
create
parsimonious
models
that
minimal
data
accessible
scientists
with
limited
background.
To
end,
we
developed
BioRT‐HBV
1.0,
watershed‐scale,
hydro‐biogeochemical
RTM
builds
upon
the
widely
used,
bucket‐type
HBV
model
known
its
simplicity
requirements.
uses
conceptual
structure
hydrology
output
of
simulate
including
advective
solute
transport
reactions
depend
reaction
thermodynamics
kinetics.
include,
example,
chemical
weathering,
soil
respiration,
nutrient
transformation.
The
time
series
weather
(air
temperature,
precipitation,
potential
evapotranspiration)
initial
conditions
water,
soils,
rocks
as
input,
times
rates
concentrations
waters
This
paper
presents
governing
equations
demonstrates
utility
examples
simulating
carbon
nitrogen
headwater
catchment.
As
shown
examples,
can
be
used
illuminate
dynamics
invisible,
arduous‐to‐measure
subsurface,
their
influence
observed
stream
or
river
chemistry
export.
With
easy‐to‐use
graphical
user
interface,
useful
research
tool
users
without
in‐depth
training.
It
additionally
serve
an
educational
promotes
pollination
ideas
across
disciplines
foster
diverse,
equal,
inclusive
community.
Language: Английский
Hydrology Outweighs Temperature in Driving Production and Export of Dissolved Carbon in a Snowy Mountain Catchment
Water Resources Research,
Journal Year:
2024,
Volume and Issue:
60(7)
Published: July 1, 2024
Abstract
Terrestrial
production
and
export
of
dissolved
organic
inorganic
carbon
(DOC
DIC)
to
streams
depends
on
water
flow
biogeochemical
processes
in
beneath
soils.
Yet,
understanding
these
a
rapidly
changing
climate
is
limited.
Using
the
watershed‐scale
reactive‐transport
model
BioRT‐HBV
stream
data
from
snow‐dominated
catchment
Rockies,
we
show
deeper
groundwater
averaged
about
20%
annual
discharge,
rising
∼35%
drier
years.
DOC
DIC
peaked
during
snowmelt
wet
years,
driven
more
by
hydrology
than
temperature.
was
primarily
produced
shallow
soils
(1.94
±
1.45
gC/m
2
/year),
stored
via
sorption,
flushed
out
snowmelt.
Some
recharged
further
consumed
subsurface
respiration
(−0.27
0.02
therefore
reducing
concentrations
at
low
discharge.
Consequently,
exported
zone
(1.62
0.96
/year,
compared
0.12
/year
zone).
both
zones
but
higher
rates
(1.34
1.00
/year)
deep
(0.36
/year).
Deep
elevated
In
other
words,
responsible
for
commonly‐observed
increasing
(flushing)
decreasing
(dilution)
with
~66%
can
drop
∼53%
Numerical
experiments
suggest
lower
warmer,
future,
proportion
processes.
These
results
underscore
often‐overlooked
growing
importance
warming
climate.
Language: Английский
Spatiotemporal variability of dissolved carbon and sources of dissolved inorganic carbon influenced by freeze–thaw and subsurface flow in an alpine headwater catchment of the Qinghai-Tibetan Plateau
Journal of Hydrology,
Journal Year:
2024,
Volume and Issue:
640, P. 131740 - 131740
Published: July 31, 2024
Language: Английский