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ng
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ro mb
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i
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orad
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ary
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ty i
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ty
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ai
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ry
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ng t
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eld
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ad
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i
ck
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i
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el
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nt
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ty i
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h
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u
nd
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on th
e m odi
fi
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a nd
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2
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n th
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and
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ti
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l
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erd
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tt
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e up p
e rb
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h
e abn o sp h
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良
)
w a sg
i
ve n a st
h
e si
hk
of
w a t e r, a nd
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A -H
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s w a sg
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h
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th
el
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or
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r e s s ed
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E
s =p
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h
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sh
t
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ty
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i
a
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i
ci
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T
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ch
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i
ty
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at
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i
ty
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h
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qt
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ch
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i
ty
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oll
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ch
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and
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h
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l
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i
st
h
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t
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ati
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er
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ti
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l
u e s of
atm o sp
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r
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ti
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ive ni
n th
ep
re s ent stud
y
.T h
el
o w e rb
o und
ary
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ti
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n o w a t e rn
t )x at ad
ep
th
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0
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m .T h i
s m od
el
c o n si
sted
of 1 4 4 l
ay
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ad
v e ry
fi
n e r e s ol
uti
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n. ,0
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m m)
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e s on
s u rf
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h
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rauli
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ep
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ort
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nt
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nT
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ort
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ti
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a nd
c o mp
uted p
rof
i
l
e s of
w a t e r c o JlteJlt, rel
ati
veh
u mi
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ty
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vap
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ty
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v ely
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mil
ari
ti
e sd
e m onstr ate th
e valid i
ty
of
th
e m od
el
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.F
r o m c o mp
ad
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e tw e e n th
e ob
s er ved
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c o mp
ut ed
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ts, th
ep
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ai
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n w a te r co nte r ltP
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tot
h
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ary
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L
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ti
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abl
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e evap
ora ti ng
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h
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l
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h
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n.妄
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o[
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E
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o n Fig
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C
o mp
uted v e rtic al pr ofile sfo r s a nd of(
a)
w ate r c o nte nt,(
b
)
r ehti
v eh umid
ity
,(
c)
v ap
o r de rl Sity,(
d)
1iq由
d(
J')
a nd
v apワ
r(
Jv)
w ate rflu x e s,a nd(
e)
e v apo r atio n 丘o r n e a ch calc ul
atio n n ode. Th
e w ate r8u x e s a nd e v ap o r ahO n a r e n O r r nal iz cdb
y e v apo r atio n into ht e atm o sp he息
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N
o r m a]i
zed
w at
e rfJ
u xN
o r m aI[
zed
e v ap
o r ati
o n Fig
・4C
o m puted v e rti
cal pmfile sf
o r clay of(
a)
li q
uid
(
J)
L a nd v ap
o r(
J
)
v w a(e ff
l
u x e s, a nd
(
b
)
e v ap o r a tio n 丘o m e a ch c al
c ulati
o n n od
e・T he w ate rn
u x e s a nd
e v apo r ati o n a r e n O r m ali
z ed
埠
.T h
ef
e a tur e sli k
e th
e ab
ove w ere al
s of
o und
o u ti
n th
e c o mp
ut ed
re sul
tf
orl
o aJ n .O
n th
e oth
e rh
a nd
,f
o r cl
ay
, tw o mj
a o rp
oi
nts of
d i
f
f
ere n c e c a nb
ef
o und
o ut(
s e eF
i
g
.4
)
.T h
ef
i rsti
s th
at th
ed
e c r e a s e Of liq
ui
d
w ater凸
u x tow ard
s oi
l
su rf
a c e a r o und
th
eb
otto mb
ound
a ry
of
th
eD S L
w a s r el
ati
v el y
g
e ntl
e, a rLd t
h
u s,th
e thi
ck
n e s s of
th
e e v ap
o r ati ng
ZO n e W a s r el
ati
v el
y
l
arg
e.T
h
e s e c o nd i
s th
at th
e vap
orfl
ux sli g h
tl y i
n c r e a s ed
tow ard
s oil
s u rf
ac e a t th
e up pe
rr eg
i o n Of
th
eD S L
, wh
e r e n oli q
ui d
w ate rtr a n sp
ort血
⊃rnd
e ep
e r s oil l
ay
e r e xi
sted
・T h
er
lr StP
Ol nt Of diff
erenc ei
s th
o ug
h
t tob
ed
ue t o th
ed iff
er e nc e of
th
ep
rop
erti
e s of
th
e u nsat urated h y d
ra uli
c c o nd
ucti
v lty
and
v ap
or c o Tld
ucti
v lty
b
e t w e e n cl
ay
a nd
o (h
e r ty p
e s of
s oil
(
s e eF i g
・5
)
.F
or s a nd
and l
o a m , th
e u n s aturated
h y d
r auli
c c ond
ucti
vi
ty
rapi d l y d
e cre a s ed
ag
aln St th
ed
e c r e a s e of
m atr
i
ch
e ad
, whil
ei
tdi d
n otf
o r cl
ay
.T h
e r ef
o r e,th
eg
e n tl
e sh if t
i
ng
of
w a t e rn
u又c o mp
o n e ntsf
o r cl
ay i
s th
o ug
h
ttob
e o w i ng
tOt
h
eg
e ntl
ed
ec re a s e of i
t sh y d
rauli
c c o nd
ucti v
i
ty
ag a
i
nst m abi
ch
e ad
.T h
e s e c o nd p
o l nt Of d
i
f f
e r e n c ei
s r el
ated
to th
e r e t e nti
o np
r op
e rti
e s of
s oil
s.F
r o m th
e s oi
l
m oi
s tt)r e ch
a r a c t er
i
sti
c c u r v e s(
F
i
g
.2
)
,t
h
e w ate r c o nte nts of
s a nd
a nd l
o a md
e m o n stratetoh
a v e al
r no stc onsta nt vl
a
ue s a tl
o w m a打i
c-h
e ad l
e v el
, wh
ere w ate rtr a n sp
o rti
n泣q
tli
d
p
h
a s ei
sd
iff
i
c ul
ttob
e m ad
e.O
nt
h
e o th
e rh
and
,i
ti
s sh
o w nt
h
at cl
ay
c a n r etai
n ab
und
a nt w ate r ats a m el
e v el
of
m a出
ch
e ad
.T h
tl S,i
t c anb
e c o n cl
ud
ed
th
at th
e s oil
w ate r c a ll eVaP
O r ateか
o md
ry
l
ay
e r, wh
e r e n oli q
ui
d
w ate r s up p ly
f
r o m u nd
e rl
カ
ng
s oi
l
,f
o rhi
g
h
l y
r ete nd
ve s oil
s.1 0
・1 3 ”)巨
>・■ lllJ主
1 0
・14 O : ⊃ 1 コ ー= O O1 0
・1 5 -0 .1 ・1 0
・ 10 0 0
M
atrl
ch
e ad
(
rr))
F i 普
.5
R elad
o n shipsb
etw e e n c o nd u cti
v lty a nd m abi
ch
e ad f
o r s a nd
(
thi
nli
n e)
,l
o a m(
m ed
it l m lin e)
a nd
clay(
血ick lin e)
.B r ok
e n a nd
d
otted li
n e r epr e s e nt u n s atu r ated
h yd
r a ul
ic c o nd
u cti vi ty a nd
v apo r c o nd
u cti
v lty, r e spe ctiv ely, a r ld
s olid lin e 7 ePr e S e ntSthetotal oft
h
o s e. ”≡
蔓
叫 ㌔ t l O葦
A≡
”) 1:1 +o
D
et
a5
[
0
[
ed
,, El
(
0
&
/
m2)
15 0
F i
g.6
C
o m paris o n betw e e n e v ap o r atio n e stim ated b
y the si
mplifi
ed
m eth
od wi 【h
eq
.(
3
)
a nd
that ob
ta
i
n ed b
ythed
etail
ed m od
elf
o r s a nd
(
cir cle)
, lo a m(
sqt l a r e)
a nd clay(
p ln s)
. Ev apo r atio n r ateiispr e s e nted
a slateinthe atflu x, whe r eI is th elate nthe atfo r v apod2 Rtio n.A
s su m lng
th
a t th
e evap
ora tlJlg
∑o n e C a nb
e reg
ard
ed
a s ah
or
i
zont al pl
a n e, and
th
a t r el
a ti
veh
u mid i
ty
at th
e evap
o r a ti ng
∑onei
s eq
ua
l
to un lty
' th
e evap
o r ati
on-.
主
a t e c a nb
e r ep
r e s ented b y
f
oll
o wi ng
eq
u at
i
o n, a SE
s ,-a
(
3
)
w