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100m!

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Fig. Heda bay and Heda-Mihama

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Fig. Research flow!

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Table. Observation articles and objects
ª!
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11

ª!

-ˆ†‡*ïOÎ!
ã¬_2008/12/19 00:00i2009/1/14 23:00!

-!

N6-°ê±%®’²!

&1$@!
12/1
9!

S6day
Fig. Observation result of wind vector

1/14!

-ˆ†‡*ïO™%’®Óƒ

†‡!

N4

yz{¨™“†*Ý®¯!

12/1

S 4 9!

Fig. Observation siteof wind

1/14!

Fig. Observation result of tidal current vector

N4&1$A!
&1$B!

S4

12/19!

current vector
2009/8/6!Fig. Observation result of tidal
MNSC!'«r\¬!

1/14!

Fig. Observationsites of tidal current…†

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é£!
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Fig. Observation result of water depth

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wxyz{*¸½ÿ¾¿!
( ! 2u ! 2u % ! (!u!u!u!u1 !p!u %#+= "u"v"w+ fv "+ AM && 2 +& KM#2 #!t!x!y!z) 0 !x!y $ !z '!z $' !x
22(! v ! v% ! (!v!v!v!v
1 !p!v %†‡yz{#+="u"v"w" fv "+ AM && 2 +& KM#2 #!x!y!z) 0 !y!y $ !z '!z $»MECNEST¾! !t' !x1 !p"g) !z!u !v!w++=0!x !y !z0="ôüÀÁyz{»é£ÂÃ¾!

(4)

f: DDŸ(Æ(Çb]%-[1/s]AM:Dµv¼ÈVÉÊËw[m2/s]
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g:DDDÑYÎ£¤[m/s2]Ï:MvÐ¤[kg/m3]!

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ex,ey,ez: ÑÿÄ*ÈVÉÊË[m2/s]
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t: «¬[s]u: xÿÄ†£[m/s]v: yÿÄ†£[m/s]w: zÿÄ†£[m/s]p: ÅY[N/m2](1)& ( #D = Ws $$1 ' b !!C b% (d "D=0(!b#!d)(!b$!d)!

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ÓMšè™è @KO(-Pšéã|O7Pˆêì*Ä´!

16

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áïðñ!
rank1!

].!#!

lrä°
[m]

v¼ÿÄ¬ë(rank1)_18[m]v¼ÿÄ¬ë(rank2)_6[m][m]ÌÍÿÄ].!#ì®íî_!
-2.0,0.0,2.0,2.5,3.0,5.0,7.0,[m]10.0, 15.0,20.0,30.0,40.0[m]-H¬)ô.p!
[m]rank2!

Fig. Geography of Heda bay!

Rank1: 0.57[s]Rank2: 0.24[s]!

òãðñ!
Fig. Geography of Heda bay
applied in simulation!
v‰*ôüÐ¤™fË¨±óq!
17@ABCDMNOP9:CQRDSTcdefgDDD2h4,5i!

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Fig. Observation sites in Heda-Mihama!
cm/s!

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ø9†!
cm/s!

Fig. Residual tidal current!
19
Fig. Validation of simulated tidal current used by semidiurnal tide!

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tu*>}!
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Fig. Validation of sediment diameter!
20

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21@ABCDMNOP9:CQRDSTcdefgDDD2h4,5i!

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A1
Si1a,Si1b,SI1c
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HU1=HSI1!A1!

THU=HU1+HU2+HU3THU
AHSI =A1!A2!A3

A3
Si3a,Si3b,SI3c
HSI3
HU3=HSI3!A3!

A2
Si2a,Si2b,SI2c
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HU2=HSI2!A2!

CHU = ! THU dt
Table. Assessment level$({! D!
‘Fig. Procedure of HEP"#$%"&Œ&'•~€()µ#•*€~•~µ$‚€~+

ˆ ,#$%,•~•'µ#•*€~•~µ$‚€~+
HSIáï!!
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Fig. Example ofSI model!

D!

-#./%0)€12~)3µ-()4•1)µ#./+µ‡ #$%#•*€~•~µ$‚€~+† #./%#•*€~•~µ.€~•*€'€~5µ/‚3)6+… ./%.&€~•*€'€~5µ€‚3)6+22

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[mm/s]!

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SI*ƒ9Ã¤-0Ó¥+,-./*1x-02
HSID8DMž¡¢£¤SID!DtuSID!DéŸ
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SI!

23@ABCDMNOP9:CQRDSTcdefgDDD2h4,5i!

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THU(Total Habitat Unit)*«¬ÂÃ!
òãðñ*:;-Ó–Ó4*™ƒ‚¤<!

Fig. Time series graph of simulated THU!

25

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HEP234•‡*01»áï¦§>i?¾!

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Mž¡¢£¤·=!

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Fig. Distributions of each SI and HSI!

26

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HSIyz{*>}!
M*@A»B8C¾!

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Fig. Uminokoen!

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Fig. Validation of HSI model!

Fig. Calculated weight ofclam in uminokoen!
#!"+!"*!")!"(!"'!"&!"%!"$!"#!
!

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Fig. Validation of HSI model!

#27@ABCDMNOP9:CQRDSTcdefgDDD2h4,5i!

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01!

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Fig. Change of tide-induced residual current!
29
01!

Fig. Distribution of HSI and SI!

01!

Žw*••=*¥¦p>?!

case1!

case1
case3!

case2!

case4!

case2

Fig. AHSI of each construction
case!
case3
case5!
case6!
case4
Fig. Construction cases!

30¡¢£IgP!

Fig. Chosen construction!

Fig. Meeting of consensus building!

31

Fig. Work of construction!

Fig. AHSI of chosen construction!

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S•?*é£ÂÃ»áï¦§rQ¬?¾!
#h= ( D " E ) ÷ ! FM#té£ÂÃ»m¾!

-0.00166

0.00112!

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Fig. Simulated geography change!

ØÜ4»m¾!

0.000

0.001!

32

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