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`
WELCOME
1
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DERIVATION OF UNIT HYDROGRAPH
FROM GIUH ANALYSIS ASSOCIATED
WITH WATERSHED DELENEATIONUSING ARCGIS
GIS TECHNIQUES FOR WATERSHEDDELINEATION AND DERIVATION OF
UNIT HYDROGRAPH FROM GIUH
ANALYSIS
GIS BASED WATERSHED ANALYSIS
AND DERIVATION OF UNIT
HYDROGRAPH FROM GIUH METHOD.
2
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GIS TECHNIQUES FOR WATERSHED
DELINEATION AND DERIVATIONOF UNIT HYDROGRAPH FROM
GIUH ANALYSIS
SECOND REVIEW
3
PROJECT CO-ORDINATOR :Ms ANJU RAJAN
PROJECT GUIDE :Ms. ANJU RAJAN
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GROUP MEMBERS
o ANJALY T M
o ASWATHY K L
o SREEYA MENON
o SUKANYA VASU
4
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CONTENT
INTRODUCTION
RELEVANCE
OBJECTIVES
METHODOLOGY LITERATURE REVIEW
SOFTWARE STUDY
WATERSHED DELINEATION
ESTIMATION OF PARAMETERS
COMPUTATION OF UH
WORK SCHEDULE5
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INTRODUCTION
Wates!e"s ae #at$a% !&"'%'()*a% $#)ts t!at *'+e a
s,e*))* ae)a% e,a#se ' %a#" s$a*e '/ 0!)*! t!e
$#' %'0s t' a "e)#e" "a)# at a#& ,at)*$%a ,')#t.
Wates!e" "e%)#eat)'# )s $se" t' "e)#e 1'$#"a)es ' t!est$"& aea
Wates!e" ,aa/etes ae 1as)* $#)t ' +a)'$s
!&"'%'()*a% a#a%&s)s
A UH )s a !&"'(a,! e,ese#t)#( 2*/ ' $#' '/
a)#a%% ' s'/e $#)t "$at)'# a#" s,e*))* aea%
")st)1$t)'#.
6
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DELINEATION METHODS
Ma#$a% "e%)#eat)'# 1ase" '# t!e *'#t'$ )#'/at)'# "e,)*te" '#
t','(a,!)* /a,s
t)/e-*'#s$/)#( e,e#s)+e tas3
A$t'/at)* "e%)#eat)'# 1'$#"a& )s *eate" a$t'/at)*a%%& 1& *'/,$te
S$1 0ates!e" /a& 1e $se" ' 0ates!e" a#a%&s)s.
7
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)( 2 :Wates!e" "e%)#eat)'#8
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LITERATURE REVIEWS
9
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JOURNAL AUTHOR AIM DATA RESULT
2.REMOTESENSING AND
GISTECHNI4UESFORIDENTIFICATION
OF ARTIFICIALRECHARGESITES INKALLARWATERSHED.
K$/aa#"
S)#)+asa#567289
T')"e#t)& t!e
at))*)a%('$#"0ate e*!a(e'#e
T'a#a%&e/',!'/et)*
,aa/etes
T','s!eet
Base /a,
S%',e /a,
DEM
H)(! +a%$es' R1 )#")*ates
!)(! $#'a#" %'0e*!a(e
Re +a%$es
)#")*ates t!att!e s$11as)#ae %esse%'#(ate" a#"
,'ssess %'0
/'"eate)#)%tat)'#
9
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JOURNAL AUTHOR AIM DATA RESULT
;.Est)/at)'#'Ge'/',!'%'(&Paa/etes' S/a%%Cat*!/e#t
$s)#( GIS
S!a($taa31a)<Kat!)3<Ve#3ates!<Rat$ a#"S'#a/T'1(a&
a#" K)#%e&Pe#='
T'"e%)#eate t!est$"& aeaa#" (e#eatestea/#et0'3
T'*'/,ae
te/,'a%+a)at)'#(e'/',!'%'
()*a% ,aa/etes
DEM
T','s!eet
Ge'/',!'%'()*a%
,aa/etes0!eeest)/ate"
Use" t'
st)/$%ate!&"'%'()*a%es,'#se 't!e*at*!/e#t
11
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JOURNAL AUTHOR AIM DATA RESULT
>.Dete/)#at)'# '0ates!e"?s!&"'%'()*a%
,aa/etes$s)#( e/'tese#s)#( a#"
(e'(a,!)*a%)#'/at)'#s&ste/ 5GIS9te*!#)@$es:Case st$"&
' Wa") A%-3a#(a<S$"a#M.
M. Y.M'!a/e"<H. S. M.H)%/) a#"E. S.Ga#a0a
T')/,%e/e#t#e0 s'$#"te*!#'%'()ess$*! ase/'tese#s)#(< GIS
a#" (%'1a% ,'s)t)'#)#(s&ste/ 5GPS9
T'
"ete/)#e t!e!&"'%'()*a%
,aa/etes.
DEM
GPS
Re/'tese#s)#(
T!e)#'/at)'#'1ta)#e" 0'$%"
1e $se$% )# s)tese%e*t)'# a#""es)(#)#( '0ate !a+est)#(
,'=e*t 0)t!/)#)/$/ *'st<e'ts a#" t)/e*'/,ae" t' t!eta")t)'#a%
/et!'"s )#a"")t)'# t'()+)#( a#a**$atees$%ts
13
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JOURNAL AUTHOR AIM DATA RESULTS
C'/,a)s'# 1et0ee#
*!aa*te)st)*s '(e'/',!'*%)/at)*IUH
,'"$*e"$s)#((*)$!Base"*%a3/'"e% a#"*%a3 )$!/'"e%
Aas!a")1<
/e&sa/sa%a)=a) <a%)/'!a/aa"a3!'#"a%)
T'est)/ate
$#' T' )#"
)#sta#ta#e'$s $#)t!&"'(a
,!T'
,e")*tst'/s$a*e$#'
HEC-HMS
s't0aeDSRO
!&"'(a ,!Ra)#a%%
a#"$#'e*'"s
Ge'/',!'*%)/at)*
,aa/etes 0asst$")e" a#"*'/,ae".
13
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JOURNAL AUTHOR AIM DATA RESULTS
A s,at)a%%&+a)e" $#)t!&"'(a,!/'"e%
M. H$1a)%a=0a"</$)3
T' ,ese#t as,at)a%$#)t!&"'(a,!
T' )#"
t!e 1as)*)/,'ta#*e ' t)/e")st)1$t)'# '
a)#a%% '#$#'
S')%*'#se+at)'# se+)*e5CSC9$#' CN/et!'"
S-
!&"'(a,! $#'
A#a%&se"t!e
,ese#*e'+e%'*)t&)e%""$)#(
st'/e+e#tS,at)a%
$#)t!&"'(a,
!e)*)e#t%&)/,%)/e#te" 1& GIS
14
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RELEVENCE
T' st$"& 0ates!e" 1e!a+)'
Use" ' !&"'%'()*a% a#a%&s)s s$*! as $#'
*a%*$%at)'# a#" %''" est)/at)'#F' ,','s)#( !&"'%'()*a% st$*t$es
14
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OBJECTIVES
T' "e%)#eate a 0ates!e" $s)#( A*GIST' est)/ate 0ates!e" ,aa/etes
T' *'/,$te $#)t !&"'(a,! ' t!e 1as)#.
T' *'/,$te S !&"'(a,! ' t!e 1as)#
15
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METHODOLOGY
16
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18
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.
STREAM ORDER
Stea/ '"e )s a /eas$e ' e%at)+e s)e ' t!e stea/
BIFURCATION RATIO
RB N) N)2 W!ee N) a#" N)2 ae t!e #$/1e ' stea/s )# '"e )
a#" )2. Let e,ese#t t!e !)(!est stea/ '"e )# t!e
0ates!e"< ) 2< 6< <
LENGTH RATIO
RL L)2 L)
W!ee L) )s a+ea(e %e#(t! ' *!a##e%s ' '"e )
19
WATERSHED PARAMETERS
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20
ELONGATION RATIO
6 97.> /∗(
W!ee< L1 )s t!e %e#(t! ' t!e 1as)#< A )s aea ' t!e 1as)# )#
s@. 3/.
AREA RATIO
RA A)2 A)
A) )s t!e /ea# aea ' t!e *'#t)1$t)#( 0ates!e" t' stea/s' '"e I
FORM FACTOR
F'/ a*t' AL6
W!ee A )s t!e aea ' 0ates!e" L )s t!e a)a% %e#(t! '0ates!e"
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COMPACTNESS COEFFICIENT
oC'/,a*t#ess *'e)*)e#t P565;.28A97.>9
W!ee P )s t!e 0ates!e" ,e)/ete A )s t!e aea ' t!e 0ates!e"
DRY DENISITY
T!e at)' ' t!e t'ta% %e#(t! ' a%% t!e stea/s 0)t! )# a
0ates!e" t' t!e 0ates!e" aea.
D" LUA
21
19
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INITIAL STATE PROBABILITIES
22
T!e )#)t)a% state ,'1a1)%)t& a**'$#ts ' a a)# "', a%%)#( '# a#&
!)%% s%',e aeas< #e(%e*t)#( a)#a%%s '# t!e *!a##e% #et0'3< )#
*at*!/e#t ' a ()+e# '"e.
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23
TRANSITIONAL STATE PROBABILITIES.T!e ta#s)t)'# ,'1a1)%)t& a**'$#ts ' t!e *!a#()#( state ' a "',
'/ %'0e '"e stea/ t' t!e !)(!e '"e stea/.
PATH PROBABILITIES
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24
PATH PROBABILITIES
Pat! ,'1a1)%)t& )s "e)#e" as t!e ,'1a1)%)t& ' a "', 0!)*!
0)%% ta+e% a%% ,'ss)1%e ,at!s s) t' t!e '$t%et.
The tota !"#$e% o& 'o(()$e 'ath(
N*+ , -
IUH FSIP2
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H)%% s%',e +e%'*)t)esstea/ %'0 +e%'*)t)es
/ *Vo0LO
L'26D
L' a+ea(e %'0 %e#(t!
D Da)#a(e "e#s)t&
T!e +a%$e ' ta+e% t)/e ,aa/ete 0!)*! +a)es '/
stea/ t' stea/ )s ()+e# 1&
VsL)
Vs )s t!e stea/ +e%'*)t&
L) )s t!e /ea# %e#(t! ' stea/ ' '"e )25
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26
STUDY AREA
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DATA REQUIRED
SOI TOPOSHEET
DEM 123M RESOLUTION4
WATER ATLAS
27
21
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SOFTWARE STUDY
28
22
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ARCGIS 10
A s&ste/ ' *a,t$)#(< st')#(< *!e*3)#(<
)#te(at)#(< /a#),$%at)#(< a#a%&)#( a#" ")s,%a&)#("ata 0!)*! ae s,at)a%%& eee#*e" t' t!e eat!.
GIS ,'+)"e a ")()ta% e,ese#tat)'# ' t!e 0ates!e"
*!aa*te)at)'# $se" )# !&"'%'()* /'"e%)#(.
GIS )s t!e %)#3)#( ' s,at)a% "ata 0)t! (e'(a,!)*
)#'/at)'# a1'$t a ,at)*$%a eat$e '# a /a,.
A*GIS Des3t', *'#s)sts ' se+ea% )#te(ate"
a,,%)*at)'#s< )#*%$")#( A*Ma,< A*Cata%'(<
A*T''%1'< a#" A*G%'1e.29
23
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RASTER Vs. VECTOR DATA
Data )# GIS *a# 1e e,ese#te" )# e)t!e a aste '+e*t' '/at.
A aste-1ase" s&ste/ ")s,%a&s< %'*ates< a#" st'es
(a,!)*a% "ata 1& $s)#( a ()" ' *e%%s.
+e*t' 1ase" s&ste/s ")s,%a& (a,!)*a% "ata as ,')#ts<
%)#es ' aeas 0)t! att)1$tes
30
24
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FAMILIARIZED TOOLS FROM ARCGIS
Filling - conditioning of the raster DEM or
filling of sinks in a raster to remove small
imperfections.
Flow direction- a process to create a raster flow
direction from each cell to its steepest "'0#s%',e
#e)(!1'.
Flow accumulation- a process to create a
raster of accumulated flow to each cell
31
25
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Watershed Pour Points: In Arc Catalog we will create a
new empty shape file to store the new pour point.
watershed : In this final step we select the flow direction
grid as the input flow direction raster and the raster
version of the pour point as the input pour point data.
!inally we select an output raster pathname. "he new
watershed raster will #e added to the map.
32
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33
DELINEATION OF
KRUMALI WATERSHED
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34
Catao5 ('at)a a!a6t)7 too ( h68%oo56 &)
28
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35
Catao5 ('at)a a!a6t)7 too( h68%oo56 &o 8)%e7t)o!
29
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36
Catao5 ('at)a a!a6t)7 too( h68%oo56 &o a77"#"at)o!
30
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37
Catao5 S'at)a a!a6t)7 too( H68%oo56 Wate%(he8
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KURUMALI WATERSHED
38
De!"e#$e% &s!"' A() *#+ O,$#!"e% -(* /#$e( #$#s
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39
O$t%et )s %'*ate" at '2?87.E 27'6;?27.8N #ea 3$$/a%)
te/,%e.
T!e /a=' aeas *'+ee" t!e 0ates!e" ae 3'"a3aa< *!a%a33$")<
))#=a%a33$"a
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ESTIMATION OF WATERSHED
PARAMETERS
O"e ' t!e stea/
N$/1e ' t!e stea/s )# ea*! '"e
B)$*at)'# at)'
Le#(t! ' stea/
Le#(t! at)'
Aea ' t!e 1as)#
Pe)/ete ' t!e 1as)#
E%'#(at)'# at)'
F'/ a*t'
C'/,a*t#ess *'e)*)e#t
C)*$%a)t& at)'
A+ea(e s%',e40
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41
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42
Att)1$te ta1%e ' stea/ '"e eat$e *%ass
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ORDER
43
N' ' stea/s ' '"e 2 2;
N' ' stea/s ' '"e 6 ;8
N' ' stea/s ' '"e ;
N' ' stea/s ' '"e 8 6
N' ' stea/s ' '"e > 2
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BIFURCATION RATIO
44
ORDER BIFURCATION
RATIO 5R19MEAN
2 8.76
;.>
6 8.6>7
; 8.777
8 6.777
>
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LENGTH RATIO
45
ORDER
OF
STREAM
NO OFSTREAM
TOTALLENGTH
MEANLENGTH
LENGTHRATIO
MEAN
LENGTH
RATIO
2 2; 22.>62 2.6>;26> 2.72
6.27
6 ;8 .>766;8 6.6>;268> 2.;
; ;;.626> 8.2>27;88 ;.;2
8 6 6.>;882 2;.;82 2.8
> 2 67.;;>2;6 67.;;>2;6
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46
AREA OF THE BASIN 422.443
PERIMETER OF THE BASIN 262.2
ELONGATION RATIO 7.66
FORM FACTOR 7.87
COMPACTNESS
COEFFICIENT2.;
CIRCULARITY RATIO 7.872
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AREA RATIO
47
A2 8.;>
A6 8.;78
A; 8.;
A8 8.;
A+ea(e 8.;
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TRANSITIONAL PROBABILITY
48
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49
INITIAL PROBABILITY
2 7.;6
6 7.28
; 7.2
8 7.27
> 7.7
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50
PROBABILITY OF EACH PATH
Pat! N$/1e Pat! "es*),t)'# P'1a1)%)t&
2 a226;8 >'$t%et 7.28
6 a226; >'$t%et 7.788; a2268 >'$t%et 7.7;
8 a22;8 >'$t%et 7.7;8
> a228 >'$t%et 7.76;
a226 >'$t%et 7.76
a22; >'$t%et 7.77 a22 >'$t%et 7.72
a66;8 >'$t%et 7.22
27 a668 >'$t%et 7.766
22 a66; >'$t%et 7.76
26 a66 >'$t%et 7.72
2; a;;8 >'$t%et 7.2>;
28 a;; >'$t%et 7.7;8
2> a88 >'$t%et 7.22
2 a> >'$t%et 7.7
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51
TRAVEL TIME PARAMETERS
Stea/ +e%'*)t& Vs 7.>6
O+e%a#" %'0 +e%'*)t& V 7.6
Q 7.;26
2 7.82>
6 7.6;
; 7.26>
8 7.7;
> 7.76
COMPUTATION OF UH AND S HYDROGRAPH
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52
t IUH 2 ! UH S HYDROGRAPH
7 ;.868E-7> 7.7878 7.787
2 7.777688 7.;>27; 7.28>;2
6 7.7722>2> 2.8768222 6.>66>2
; 7.77286>2 6.7828;6; .666;8
8 7.776667 6.>78; 28.766>2>
> 7.776777 ;.66266 6;.>22262
7.77;;28 ;.288 ;>.86;>2
7.77;28>2 8.86;72;2 8.;678
7.778666 >.78>728 .8267; 7.778726 >.>>62;; >.8;>
27 7.77>66;6 .2;688>2 27.;28>;
22 7.77>276 .>772>2 2;7.2>28>
26 7.77727> .28;62 2>>.>8
2; 7.7788>8 .67662 2;.68;822
28 7.77> .7876 626.>;>72
2> 7.776622 .>62>628 688.2;>8;>6
2 7.7722>> .;22> 6.;7>22
2 7.77>2>6 .;;72;6 ;26.27>6;
2 7.7766> .76872 ;8.6;
2 7.77>7 27.7>2> ;.>7>2>
67 7.778>72 27.;6>68 86.2>8>7>
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53
3 :3 33 :3 +33 +:3 2333
+
;
<
=
3
+
;
1 hr UH
h% UH
TIME in se!n"s
DIS#HAR$E in %3&s
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54
3 :3 33 :3 +33 +:3 233 2:33
:33
333
:33
+333
+:33
2333
2:33
;333
;:33
:333
S H'DRO$RA(H
S HYDROGRAPH
TIME in se!n"s
DIS#HA$E in %3&s
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WORK SCHEDULE
)OR* MONTH
STUDY AREA SELECTED AUGUST
LITERATURE REVEIW SEPTEMBER
SOFTWARE STUDY OCTOBER - DECEMBER
WATERSHED DELINEATED ANDPARAMETERS ARE ESTIMATED
JANUARY FEBRUARY
UH AND S HYDROGRAPHCOMPUTED
MARCH55
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WOR>S TO BE DONE
Re,'t ,e,aat)'#
56
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THANK YOU
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