Open Geosciences,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Jan. 1, 2023
Abstract
Equilibrium-line
altitudes
(ELAs)
are
an
important
proxy
of
the
fluctuations
and
mass–balance
characteristics
glaciers
have
been
widely
used
to
reconstruct
regional
paleoclimatic
conditions.
The
Diancang
Massif,
which
has
experienced
well-known
"Tali
Glacial
Stage"
was
uplifted
during
MIS
3b
(marine
isotope
stages).
With
its
unique
characteristics,
Massif
become
irreplaceable
area
for
study
inland
paleo-environmental
changes
in
China.
Nevertheless,
despite
considerable
amount
glaciological
studies
on
this
area,
a
detailed
systematic
estimation
paleoglacial
ELAs
Last
Maximum
remains
be
performed.
In
study,
several
approaches
employed
estimate
basis
previous
studies.
results
compared
analyzed,
final
determined
using
weighted
arithmetic
average
method.
Finally,
root
mean
square
error
is
applied
evaluate
accuracy
results.
Moreover,
two
critical
parameters,
differences
between
positive
negative
effects
distance
ratio
accumulation
ablation
discussed
detail.
comprehensive
results,
estimated
north
slope
“Yuju
Peak”
south
“Longquan
3,773
3,883
m,
their
median
errors
18.73
45.00
respectively.
Overall,
could
systematically
scientifically
first
time,
expected
provide
fundamental
data
accurate
modeling
area.
Geomorphology,
Journal Year:
2021,
Volume and Issue:
396, P. 108000 - 108000
Published: Oct. 25, 2021
River
floods
frequently
occur
when
tropical
cyclones
hit
land.
Nonetheless,
systematic,
long-term
discharge
data
remain
rather
scarce
in
many
countries,
which
prevent
proper
analysis
of
peak
discharges
occurring
during
floods.
The
Térraba
catchment
is
the
biggest
and
most
dynamic
Costa
Rica.
In
this
study,
we
developed
regional
flood-frequency
analyses
combining
tree-ring
based
estimation
measurement
at
monitoring
stations
to
derive
flood
quartiles.
Flood
quartiles
were
combined
with
Topographic
Wetness
Index
(TWI)
determine
hazards
along
floodplains.
risk
assessment
was
on
a
high-resolution
mapping
infrastructure,
population
density
(as
measure
exposure),
social
development
index
(to
represent
vulnerability).
We
show
that
cyclone-induced
can
be
assessed
accurately
including
dendrogeomorphic
reconstructions
systematic
measurements.
also
assessments
performed
large-scale
catchments
if
both
coarse
detailed
inputs
are
used.
results
study
will
useful
for
schemes
promoting
resilience
local
populations.
Geosciences,
Journal Year:
2020,
Volume and Issue:
10(6), P. 211 - 211
Published: June 1, 2020
Over
the
last
decades,
Costa
Rica
became
established
as
a
world-leading
ecotourism
destination
due
to
its
environmental
policies
and
awareness.
The
country
is
located
in
dynamic
region
where
combination
of
tectonics
volcanism,
tropical
climate
vegetation
have
molded
landscapes.
Our
aim
carry
out
review
geodiversity,
geoconservation,
geotourism
status
Rica.
We
analyzed
different
geomorphic
environments
(volcanic,
coastal,
karstic,
glacial,
fluvial),
prospecting
importance
Conservation
Areas
National
System
for
promotion
national
geoheritage
through
geotourism.
results
are
critical
geosciences
wider
public
throughout
conservation
decision-makers.
In
dynamic,
geomorphic,
tropical,
developing
countries
with
strong
anthropic
pressures
over
their
geo-
biodiversity,
studies
might
be
priority
increasing
revenues
reducing
pressure
on
natural
resources.
Land,
Journal Year:
2021,
Volume and Issue:
11(1), P. 48 - 48
Published: Dec. 29, 2021
Central
America
is
located
in
a
dynamic
region
where
tectonics
and
volcanism
together
with
the
tropical
climate
its
diverse
vegetation
have
shaped
landscapes.
Our
main
objective
to
review
status
of
geodiversity,
geoconservation,
geotourism
America.
We
will
identify
region’s
geomorphic
environments
geodiversity
using
classic
regional
geomorphology
mapping
techniques.
Likewise,
touristic
maps
webpages,
we
most
prominent
geosites
different
origin
Moreover,
explore
national
environmental
policies,
natural
conservation
systems,
tourism
initiatives
promote
their
geoheritage
through
geotourism.
found
that
volcanic,
coastal,
karstic,
glacial,
fluvial
are
common
region.
In
addition,
identified
393
fluvial,
archeological
The
promotion
geoheritage,
thus
development
geoparks
excellent
opportunities
sustainable
development,
lifestyles,
appreciation
cultural
diversity,
peace.
These
results
may
prove
important
spread
information
about
geoscience
widely
decision
makers
on
each
country
stakeholders
Geoheritage
studies
developing
countries
such
as
those
should
be
improved,
priority
given
geomorphological
dynamics
strong
anthropic
pressures
geo-
biodiversity
increase
income
geotourism,
especially
among
less
favored
communities
avoid
affecting
already
threatened
resources.
Applied Sciences,
Journal Year:
2022,
Volume and Issue:
12(21), P. 10843 - 10843
Published: Oct. 26, 2022
High
mountain
areas
are
critical
for
water
security
and
natural
hazard
dynamics,
as
well
glacier
ecosystem
conservation
in
a
warming
world.
We
present
brief
account
of
the
methodological
steps
geomorphological
mapping
areas,
including
required
scale,
legends,
technology,
software.
analyze
best
imagery
sources
their
combination
with
fieldwork
geographical
information
systems
(GIS),
performing
accurate
cartography.
In
addition,
we
two
case
studies
which
apply
several
methods
described
previously.
Firstly,
carried
out
classical
digital
Cerro
Chirripó
(Talamanca
Range).
Secondly,
studied
Reserva
Biológica
Alberto
Manuel
Brenes
(Central
Volcanic
Range),
where
used
UAVs
to
map
high-resolution
fluvial
geomorphology.
This
framework
is
suitable
future
surveys
worldwide.
Moreover,
can
give
ideas
on
application
these
approaches
different
mountainous
environments.
Hydrological Processes,
Journal Year:
2020,
Volume and Issue:
34(24), P. 4609 - 4627
Published: Sept. 14, 2020
Abstract
Páramos,
a
neotropical
alpine
grassland‐peatland
biome
of
the
northern
Andes
and
Central
America,
play
an
essential
role
in
regional
global
cycles
water,
carbon,
nutrients.
They
act
as
water
towers,
delivering
ecosystem
services
from
high
mountains
down
to
Pacific,
Caribbean,
Amazon
regions.
Páramos
are
also
widely
recognized
biodiversity
climate
change
hot
spots,
yet
they
threatened
by
anthropogenic
activities
environmental
changes.
Despite
their
importance
for
security
carbon
storage,
vulnerability
human
activities,
only
three
decades
ago,
páramos
were
severely
understudied.
Increasing
awareness
need
hydrological
evidence
guide
sustainable
management
prompted
action
generating
data
filling
long‐standing
knowledge
gaps.
This
has
led
remarkably
successful
increase
scientific
knowledge,
induced
strong
interaction
between
scientific,
policy,
(local)
communities.
A
combination
well‐established
innovative
approaches
been
applied
collection,
processing,
analysis.
In
this
review,
we
provide
short
overview
historical
development
research
state
hydrometeorology,
flux
dynamics,
impacts,
influence
extreme
events
páramos.
We
then
present
emerging
technologies
hydrology
resources
discuss
how
converging
science
policy
efforts
have
leveraged
traditional
new
observational
techniques
generate
base
that
can
support
conclude
co‐evolution
was
able
successfully
cover
different
spatial
temporal
scales.
Lastly,
outline
future
directions
showcase
long‐term
collection
foster
responsible
conservation
towers.
Revista Cartográfica,
Journal Year:
2021,
Volume and Issue:
102, P. 125 - 138
Published: Jan. 4, 2021
Despite
of
the
geomorphological
diversity
Central
America
and
Costa
Rica,
there
are
few
detailed
studies
in
region.
A
1:25,000
analyses
Upper
General
River
Basin
(UGRB)
located
southeast
Rica
is
presented,
based
on
interpretation
aerial
photographs
field
mapping.
First,
a
morphometric
analysis
was
performed
to
calculate
analyze
seven
variables
that
were
merged
order
produce
flood
landslides
susceptibility
maps.
Second,
total
43
types
landforms
divided
genetically
into
endogenic
(tectonic),
exogenic
(fluvial,
gravitational,
glacial)
features
mapped
for
an
area
1560
km2.
Finally,
hazard
map
with
zonation
different
levels
floods
performed.
This
cartography
important
terms
evolution,
disaster
risk
reduction
as
well
land
use
planning
approximately
40,000
inhabitants.
The
presented
methodology
can
also
be
applied
other
developing
countries
purposes
such
landscape
morphogenetic
maps,
reduction,
planning.
Revista Mexicana de Ciencias Geológicas,
Journal Year:
2021,
Volume and Issue:
38(1), P. 55 - 64
Published: March 24, 2021
Numerous
high
elevation
tropical
mountains
around
the
world
show
evidence
of
past
glacial
activity
during
Last
Glacial
Maximum
(LGM).
Cerro
Chirripó
in
Costa
Rica
exhibits
paleoglacial
landforms
such
as
cirques,
moraine
deposits
and
polished
striated
bedrock
surfaces.
We
used
aerial
imagery
(1:25000)
contour
lines
to
develop
a
Digital
Elevation
Model
(DEM)
for
LGM.
determined
paleo-equilibrium
line
altitudes
(paleo-ELAs)
using
Area-Altitude
Balance
Ratio
(AABR)
LGM
Rica.
Additionally,
Generalized
Linear
(GLM)
was
performed
statistically
analyze
paleoglacier
volumes
ice
thickness
combined
with
ten
land
surface
parameters
(LSP).
Our
results
identified
thirty-one
paleoglaciers
covering
an
area
28.26
km2
global
LGM,
maximum
178
meters
Chirripó,
total
volume
13863
×
105
m3
mean
paleo-ELA
3490
meters.
In
addition,
Area
Slope
were
LSP
highest
statistical
correlation
explain
volumes,
while
Diurnal
Anisotropic
Heating
best
thickness.
As
one
first
studies
mountain
environments,
this
work
expands
geographic
scope
glacier
reconstructions
expansion
