Hydrological Sciences Journal,
Journal Year:
2019,
Volume and Issue:
65(1), P. 12 - 20
Published: Oct. 14, 2019
What
implications
do
societies'
risk
perceptions
have
for
flood
losses?
This
study
uses
a
stylized,
socio-hydrological
model
to
simulate
the
mutual
feedbacks
between
human
societies
and
events.
It
integrates
hydrological
modelling
with
cultural
theory
proposes
four
ideal
types
of
society
that
reflect
existing
dominant
perception
management:
neglecting,
monitoring,
downplaying
controlling
societies.
We
explore
consequent
trajectories
generated
by
interactions
floods
people
these
over
time.
The
results
suggest
losses
are
substantially
reduced
when
awareness-raising
attitudes
promoted
through
inclusive,
participatory
approaches
in
community.
In
contrast,
rely
on
top-down
hierarchies
structural
measures
protect
settlements
floodplains
may
still
suffer
significant
during
extreme
illustrates
how
predictions
formed
social
science
theories
can
be
applied
tested
modelling.
Water Resources Research,
Journal Year:
2017,
Volume and Issue:
53(7), P. 5209 - 5219
Published: June 2, 2017
Abstract
Research
gaps
in
understanding
flood
changes
at
the
catchment
scale
caused
by
forest
management,
agricultural
practices,
artificial
drainage,
and
terracing
are
identified.
Potential
strategies
addressing
these
proposed,
such
as
complex
systems
approaches
to
link
processes
across
time
scales,
long‐term
experiments
on
physical‐chemical‐biological
process
interactions,
a
focus
connectivity
patterns
spatial
scales.
It
is
suggested
that
will
stimulate
new
research
coherently
addresses
issues
hydrology,
soil
sciences,
engineering,
ecology,
geomorphology.
Advances in Water Resources,
Journal Year:
2017,
Volume and Issue:
111, P. 132 - 155
Published: Oct. 19, 2017
The
detection
and
attribution
of
long-term
patterns
in
hydrological
time
series
have
been
important
research
topics
for
decades.
A
significant
portion
the
literature
regards
such
as
'deterministic
components'
or
'trends'
even
though
complexity
systems
does
not
allow
easy
deterministic
explanations
attributions.
Consequently,
trend
estimation
techniques
developed
to
make
justify
statements
about
tendencies
historical
data,
which
are
often
used
predict
future
events.
Testing
hypothesis
on
observed
is
widespread
hydro-meteorological
mainly
due
interest
detecting
consequences
human
activities
cycle.
This
analysis
usually
relies
application
some
null
significance
tests
(NHSTs)
slowly-varying
and/or
abrupt
changes,
Mann-Kendall,
Pettitt,
similar,
summary
statistics
(e.g.,
annual
averages,
maxima,
minima,
etc.).
However,
reliability
this
has
seldom
explored
detail.
paper
discusses
misuse,
misinterpretation,
logical
flaws
NHST
trends
data
from
three
different
points
view:
historic-logical,
semantic-epistemological,
practical.
Based
a
review
rationale,
basic
statistical
definitions
stationarity,
nonstationarity,
ergodicity,
we
show
that
if
empirical
always
feasible
numerical
point
view,
it
uninformative
inference
nonstationarity
without
assuming
priori
additional
information
underlying
stochastic
process,
according
deductive
reasoning.
prevents
use
outcomes
support
nonstationary
frequency
modeling.
We
also
correlation
structures
characterizing
might
easily
be
underestimated,
further
compromising
attempt
draw
conclusions
spanning
period
records.
Moreover,
adjusting
procedures
accounting
developed,
them
insufficient
applied
only
tests,
while
others
theoretically
flawed
but
still
widely
applied.
In
particular,
using
250
unimpacted
stream
flow
across
conterminous
United
States
(CONUS),
test
results
can
dramatically
change
sequences
values
reproduced
starting
daily
records,
whose
larger
sizes
enable
more
reliable
assessment
structures.
Geoscience Frontiers,
Journal Year:
2021,
Volume and Issue:
12(6), P. 101224 - 101224
Published: May 5, 2021
Bangladesh
experiences
frequent
hydro-climatic
disasters
such
as
flooding.
These
are
believed
to
be
associated
with
land
use
changes
and
climate
variability.
However,
identifying
the
factors
that
lead
flooding
is
challenging.
This
study
mapped
flood
susceptibility
in
northeast
region
of
using
Bayesian
regularization
back
propagation
(BRBP)
neural
network,
classification
regression
trees
(CART),
a
statistical
model
(STM)
evidence
belief
function
(EBF),
their
ensemble
models
(EMs)
for
three
time
periods
(2000,
2014,
2017).
The
accuracy
machine
learning
algorithms
(MLAs),
STM,
EMs
were
assessed
by
considering
area
under
curve—receiver
operating
characteristic
(AUC-ROC).
Evaluation
levels
aforementioned
revealed
EM4
(BRBP-CART-EBF)
outperformed
(AUC
>
90%)
standalone
other
analyzed.
Furthermore,
this
investigated
relationships
among
cover
change
(LCC),
population
growth
(PG),
road
density
(RD),
relative
(RCF)
areas
period
between
2000
2017.
results
showed
very
high
increased
19.72%
2017,
while
PG
rate
51.68%
over
same
period.
Pearson
correlation
coefficient
RCF
RD
was
calculated
0.496.
findings
highlight
significant
association
floods
causative
factors.
could
valuable
policymakers
resource
managers
they
can
improvements
management
reduction
damage
risks.
Water Resources Research,
Journal Year:
2022,
Volume and Issue:
58(6)
Published: June 1, 2022
Abstract
Statistical
distributions
of
flood
peak
discharge
often
show
heavy
tail
behavior,
that
is,
extreme
floods
are
more
likely
to
occur
than
would
be
predicted
by
commonly
used
have
exponential
asymptotic
behavior.
This
behavior
may
surprise
managers
and
citizens,
as
human
intuition
tends
expect
light
the
heaviness
tails
is
very
difficult
predict,
which
lead
unnecessarily
high
damage.
Despite
its
importance,
literature
on
rather
fragmented.
In
this
review,
we
provide
a
coherent
overview
processes
causing
implications
for
science
practice.
Specifically,
propose
nine
hypotheses
mechanisms
in
related
atmosphere,
catchment,
river
system.
We
then
discuss
extent
current
knowledge
supports
or
contradicts
these
hypotheses.
also
statistical
conditions
emergence
based
derived
distribution
theory
relate
them
generation
mechanisms.
review
degree
can
from
process
data.
Finally,
recommend
further
research
toward
testing
improving
prediction
tails.
Geophysical Research Letters,
Journal Year:
2016,
Volume and Issue:
43(19)
Published: Sept. 17, 2016
Abstract
Trends
in
the
peak
magnitude,
frequency,
duration,
and
volume
of
frequent
floods
(floods
occurring
at
an
average
two
events
per
year
relative
to
a
base
period)
across
United
States
show
large
changes;
however,
few
trends
are
found
be
statistically
significant.
The
multidimensional
behavior
flood
change
can
described
by
four
distinct
groups,
with
streamgages
experiencing
(1)
minimal
change,
(2)
increasing
(3)
decreasing
or
(4)
increases
all
properties.
Yet
group
membership
shows
only
weak
geographic
cohesion.
Lack
cohesion
is
further
demonstrated
correlations
between
temporal
patterns
large‐scale
climate
indices.
These
findings
reveal
complex,
fragmented
pattern
that,
therefore,
clouds
ability
make
meaningful
generalizations
about
States.