npj Climate and Atmospheric Science,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: Nov. 20, 2024
The
change
of
groundwater
storage
(GWS)
on
the
Tibetan
Plateau
(TP)
is
vital
for
water
resources
management
and
regional
sustainability,
but
its
estimation
has
large
uncertainty
due
to
insufficient
hydrological
measurements
diverse
future
climate
scenarios.
Here,
we
employ
high-resolution
land
surface
modeling,
advanced
satellite
observations,
global
model
data,
deep
learning
estimate
GWS
changes
in
past
future.
We
find
a
3.51
±
2.40
Gt
yr−1
increase
from
2002–2018,
especially
exorheic
basins,
attributed
glacier
melting.
will
persistently
future,
growth
rate
slowing
down
(0.14
2079–2100
under
high
emission
scenario).
Increasing
projected
over
most
endorheic
which
associated
with
increasing
precipitation
decreasing
shortwave
radiation.
In
contrast,
headwaters
Amu
Darya,
Yangtze,
Yellow
river
basins.
These
insights
have
implications
sustainable
resource
changing
climate.
Hydrology and earth system sciences,
Journal Year:
2023,
Volume and Issue:
27(21), P. 4019 - 4038
Published: Nov. 9, 2023
Abstract.
Climate
change
accelerates
the
global
water
cycle.
However,
relationships
between
climate
and
hydrological
processes
in
alpine
arid
regions
remain
elusive.
We
sampled
surface
groundwater
at
high
spatial
temporal
resolutions
to
investigate
these
Qaidam
Basin,
an
extremely
area
northeastern
Tibetan
Plateau.
Stable
H–O
isotopes
radioactive
3H
were
combined
with
atmospheric
simulations
examine
their
response
mechanisms
change.
Contemporary
dominate
variations
of
isotopes,
specifically
westerlies
moisture
transport
local
temperature
precipitation
regimes.
The
isotopic
compositions
eastern
Kunlun
Mountains
showed
a
gradually
depleted
eastward
pattern,
while
reverse
pattern
occurred
Qilian
system.
Precipitation
contributed
significantly
more
river
discharge
basin
(approximately
45
%)
than
middle
western
basins
(10
%–15
%).
Moreover,
increasing
shrinking
cryosphere
caused
by
current
have
accelerated
circulation.
In
southwestern
meltwater
infiltrate
along
preferential
flow
paths,
such
as
faults,
volcanic
channels,
fissures,
permitting
rapid
seasonal
recharge
enhanced
terrestrial
storage.
compensating
for
loss
due
long-term
ice
snow
melt
will
be
challenge
under
projected
total
storage
may
show
trend
before
decreasing.
Great
uncertainty
about
is
potential
risk
facing
Basin.
npj Climate and Atmospheric Science,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: Nov. 20, 2024
The
change
of
groundwater
storage
(GWS)
on
the
Tibetan
Plateau
(TP)
is
vital
for
water
resources
management
and
regional
sustainability,
but
its
estimation
has
large
uncertainty
due
to
insufficient
hydrological
measurements
diverse
future
climate
scenarios.
Here,
we
employ
high-resolution
land
surface
modeling,
advanced
satellite
observations,
global
model
data,
deep
learning
estimate
GWS
changes
in
past
future.
We
find
a
3.51
±
2.40
Gt
yr−1
increase
from
2002–2018,
especially
exorheic
basins,
attributed
glacier
melting.
will
persistently
future,
growth
rate
slowing
down
(0.14
2079–2100
under
high
emission
scenario).
Increasing
projected
over
most
endorheic
which
associated
with
increasing
precipitation
decreasing
shortwave
radiation.
In
contrast,
headwaters
Amu
Darya,
Yangtze,
Yellow
river
basins.
These
insights
have
implications
sustainable
resource
changing
climate.
