Hydrogeology Journal,
Journal Year:
2023,
Volume and Issue:
32(3), P. 891 - 912
Published: Dec. 27, 2023
Abstract
Intense
use
of
groundwater
in
urban
areas
requires
appropriate
monitoring,
which
turn
necessitates
proper
data
management
with
employment
increasingly
sophisticated
statistical
methods
and
mapping
tools.
An
example
such
an
area
intensive
is
the
study
GeoPot
Project,
namely
Munich
(Germany)
its
surroundings.
The
aim
presented
was
to
provide
a
description
hydrogeochemical
characteristics
aquifers
occurring
Quaternary
Upper
Freshwater
Molasse
(German:
Obere
Süßwassermolasse
–
OSM)
sediments
further
improve
understanding
interactions
between
aquifers.
focus
put
on
identification
hydrochemical
facies,
chemical
signatures
different
water
types,
processes,
spatial
relationships
In
order
deal
generated
for
this
study,
as
well
coming
from
existing
external
databanks
(e.g.
BIS-BY),
methodology
quality
assurance
developed.
analytical
focused
multivariate
statistics.
To
enhance
interpretation
obtained
clusters,
recently
developed
three-dimensional
geological
model
used
better
presentation.
It
found
that
area,
deeper
aquifer
systems
represent
most
distinct
signature
Na–HCO
3
type.
remaining
transition
(alkaline)
shallow
(alkaline-earth)
can
be
observed.
results
utilized
improved,
sustainable
management.
Journal of Contaminant Hydrology,
Journal Year:
2022,
Volume and Issue:
248, P. 104021 - 104021
Published: May 11, 2022
Groundwater
fauna
(stygofauna)
comprises
organisms
that
have
adapted
to
the
dark
subterranean
environment
over
a
course
of
thousands
and
millions
years,
typically
having
slow
metabolisms
long
life
cycles.
They
are
crucial
players
in
groundwater
oxygenic
aquifers,
contribute
various
ecosystem
services.
Today's
knowledge
their
sensitivity
anthropogenic
impacts
is
incomplete
critical
analysis
general
relevance
local
findings
lacking.
In
this
review,
we
focus
on
those
areas
with
highest
interference
between
humans
stygofauna:
cities.
Here
where
pollution
by
contaminants
heat
strongly
stresses
unique
ecosystems.
It
demonstrated
it
difficult
discern
influence
individual
factors
from
reported
field
studies,
extrapolate
laboratory
results
conditions.
The
effects
temperature
increase
chemical
vary
tested
species
test
general,
previous
indicate
heating,
especially
long-term,
will
mortality,
less
at
risk
vanishing
habitats.
same
may
be
true
for
salinity
caused
road
de-icing
cold
urban
areas.
Furthermore,
high
sensitivities
were
shown
ammonium,
which
probably
even
more
pronounced
rising
temperatures
resulting
altered
biodiversity
patterns.
Toxicity
heavy
metals,
variety
invertebrates,
increases
time
chronic
exposure.
Our
current
reveals
diverse
potential
pollution,
but
our
insights
gained
so
far
can
only
validated
standardized
long-term
concepts.
Hydrological Processes,
Journal Year:
2025,
Volume and Issue:
39(2)
Published: Feb. 1, 2025
ABSTRACT
Shallow
groundwater
in
many
cities
around
the
world
is
subject
to
elevated
temperatures
that
pose
a
risk
quality
and
ecosystems.
The
objective
of
this
study
assess
suitability
different
trend
estimation
methods
for
temperature
specifically
investigate
spatio‐temporal
long‐term
changes
water
urban
Vienna.
Twenty‐year
data
records
(2001–2020)
from
sources
were
used
air,
soil,
river
regarding
their
annual
mean
extreme
percentile
values.
effects
quality,
methods,
various
time
periods
analysis
investigated.
Block
bootstrapping
combination
with
Mann–Kendall
test
was
found
be
suitable
method
determining
significance
trends
if
time‐series
are
short
(10
years),
as
underlying
assumptions
lowest
among
all
approaches.
Between
2001
2020,
average
Vienna
increased
by
0.9
K/decade
shallow
0.8
air.
However,
increase
not
linear
has
intensified
later
decade
an
1.4
K/decade.
temperatures,
represented
lower
(cold)
/
upper
(warm)
10th
soil
quantile
regression,
show
strongest
air
temperatures.
For
groundwater,
these
value
site‐specific
influenced
infrastructure
interaction
water.
These
results
underline
importance
spatially
temporally
high‐resolution
highlight
need
aquifer
characterisation
sustainable
use
geothermal
energy
heating
cooling.
GWT
rise
needs
considered
management
avoid
possible
negative
consequences
ecology.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: July 8, 2022
Despite
the
global
interest
in
green
energy
alternatives,
little
attention
has
focused
on
large-scale
viability
of
recycling
ground
heat
accumulated
due
to
urbanization,
industrialization
and
climate
change.
Here
we
show
this
theoretical
potential
at
a
multi-continental
scale
by
first
leveraging
datasets
groundwater
temperature
lithology
assess
distribution
subsurface
thermal
pollution.
We
then
evaluate
for
three
scenarios:
status
quo
scenario
representing
present-day
heat,
recycled
with
temperatures
returned
background
values,
change
projected
warming
impacts.
Our
analyses
reveal
that
over
50%
sites
recyclable
underground
pollution
quo,
25%
locations
would
be
feasible
long-term
scenario,
least
83%
scenario.
Results
highlight
warrants
consideration
move
low-carbon
economy
warmer
world.
Remote Sensing,
Journal Year:
2022,
Volume and Issue:
14(17), P. 4388 - 4388
Published: Sept. 3, 2022
There
were
significant
differences
in
the
dominant
driving
factors
of
change
process
different
types
wetlands
Yellow
River
delta.
In
addition,
to
our
knowledge,
optimal
classification
feature
sets
with
Random
Forest
algorithm
for
delta
least
explored.
this
paper,
wetland
information
study
area
was
extracted
based
on
a
de-feature
variable
redundancy,
and
then
its
from
2015
2021
monitored
analyzed
using
Geodetector
gravity
center
model.
The
results
showed
that
(1)
composed
red
edge
indexes
had
highest
accuracy,
overall
accuracy
Kappa
coefficient
95.75%
0.93.
(2)
During
2015–2021,
large
natural
transformed
into
an
artificial
wetland.
development
direction
“northwest–southeast”
along
River.
(3)
interaction
between
vegetation
coverage
accumulated
temperature
largest
explanatory
power
area.
solar
radiation
DEM
research
could
better
provide
decisions
protection
restoration
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
903, P. 166572 - 166572
Published: Aug. 24, 2023
Built-up
areas
are
known
to
heavily
impact
the
thermal
regime
of
shallow
subsurface.
In
many
cities,
answer
densification
is
increase
height
and
depth
buildings,
which
leads
a
steady
growth
in
number
underground
car
parks.
These
parks
heated
by
waste
heat
from
engines
typically
several
degrees
warmer
than
surrounding
subsurface,
makes
them
source
for
ambient
subsurface
groundwater.
Thus,
objective
this
study
investigate
31
six
cities
upscale
that
have
on
Berlin,
Germany.
Underground
daily,
weekly,
seasonal
temperature
patterns
respond
air
circulation
traffic
frequency,
resulting
net
fluxes
0.3
15.5
W/m2
at
measured
sites.
For
studied
emitted
annual
energy
about
0.65
PJ.
Recycling
with
geothermal
pumps
would
provide
sustainable
alternative
green
counteract
urban
island
cooling
Earth System Dynamics,
Journal Year:
2025,
Volume and Issue:
16(1), P. 55 - 74
Published: Jan. 8, 2025
Abstract.
Underground
heat
extremes,
amplified
by
factors
such
as
underground
infrastructure
or
poorly
adjusted
geothermal
systems,
have
long
been
discussed
in
the
geosciences.
However,
there
is
little
emphasis
on
exchange
between
these
subsurface
extremes
and
atmosphere.
To
address
issue,
this
study
investigates
impact
of
varying
soil
temperatures
potential
air
an
idealized
domain
using
turbulence-
building-resolving
large-eddy-simulation
urban
microclimate
model
PALM-4U
(Parallelized
Large-Eddy
Simulation
Model
for
Urban
Applications).
This
involves
two
steps.
First,
we
test
if
how
domains
can
be
simulated,
second,
coupling
surface
energy
fluxes,
rather
soil,
focus.
We
develop
several
scenarios,
distinguishing
cyclic
Dirichlet/radiation
boundary
conditions
along
x
axis,
summer
winter,
various
land
cover
types.
Our
results
demonstrate
that
induce
modifications
due
to
changes
temperature.
The
magnitude
varies
with
respect
tested
covers,
which
primarily
affect
absolute
temperatures.
time
day
season
a
larger
influence
modifications.
A
5
K
increase
at
2
m
depth
maximum
0.38
near-surface
during
winter
09:00
10:00
local
after
3
d
simulation.
When
are
decreased,
find
predominantly
inverse
patterns.
least
found
09:00,
when
elevated
only
0.02
over
short
tall
grass
0.18
bare
soil.
conditions,
atmosphere
cannot
freely,
changing
do
not
These
help
enhance
our
understanding
atmospheric
also
provide
recommendations
“simulatability”
but
reality-oriented
scenarios
PALM-4U.
one
first
studies
cold
sources
parameters.
