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3.2
3.2.1
17 ACM (I) RH
17(a) I-RH
17(b)
I-RH
3.2.2
ISO
(TOW) 0℃ 80%
TOW(ISO)=Tdew(ISO)+Train(ISO) (5)
ACM
TOW(ACM)=Tdew(ACM)+Train(ACM) (6)
RH≥80%
Train(ACM)=Train(ISO) TOW(ISO)
TOW(ACM) Tdew(ISO)=Tdew+dry(RH RHth=80%)
Tdew(ACM) 3) 18 1
(dew+dry )
(dew )
I (μ
A)
105
104
103
102
101
100
10-1
10-2
10-3
/
(a)
0 20 40 60 80 100RH (%)
I (μ
A)
105
104
103
102
101
100
10-1
10-2
10-3
(b) (July, 1992) 7/9 12:00 -7/10 12:00 7/10 12:00 -7/11 12:00 7/10 12:00 -7/11 12:00
50 60 70 80 90 100RH (%)
17 I-RH (a) (b)
18 (a) (b) 1(Tdew+dry:○)
(Tdew:●)
RH (%)100806040200
Miyako, 1992.11 - 1993.10Ws=7.4 10 - 2.8 10 g/m-2 -1 2
0
200
400
600
800
1000
1200
Tim
e (h
)
RHth=80%RHc=62%
(b)
dry+dew dew
Ws= 7.4×10-2 – 2.8×10-1 g/m2
1993.1-1993.12
Ws=1.4×10-2-1.1×10-1g/m2
1992.10-1993.10
Ws=7.4×10-2-2.8×10-1g/m2
Tim
e (h
)
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ISO RHth=80% Tdew(ACM) ( )
Tdew+dry(RH RHth=80%) ( ) RH 80% 18(a)
Tdew(ACM)= Tdew+dry(RH RHc) RHc RHc=78% RHth=80%
RHc=62% 18(b) ISO RHth 80%
80% 3)
3.3
3.3.1
0.1 40μm20),21) 21)
21) JIS ISO
1
3.3.2
30 40μm21)
2
(α*D) 22) 19 ACM 23) 500m24) 3m (Ws) α*D
Ws>0.1g/m2 Ws α*D Ws-α*D
α*D 4km
Ws 0.3 2g/m2 Ws-α*D
4km Ws
3.4
3.4.1 ACM
QCM ACM
(Q)
log CR [mm/y]= 0.378 log Q [C/day] - 0.636 (7)
-2
-1
0
1
D (107 m2/s/day)0.5 1 1.5 2 2.5 3
ChibaShimizu
log
Ws[
g/m
2 ]
Nishihara(4km)
3m)
log Ws=2.4×10-7α D-5.0log Ws=2.6×10-7α D-2.7
(’97.8-’98.8) (’94.11-’96.11)
(500m)
19(Ws) (α*D)
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