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The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of

N

Makkah

Al-Baha Asir Jazan

B408

J404

Legend

Run-off Station (MOWE) 0 25 50 km

Figure1-9 Runoff Stations in Al Baha Region

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-19 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

N

B406

B405 Makkah B410 Al-Baha B402 Asir Najran B404 Jazan

SA003

SA411 SA404

A403 A404 A40５ A402 A406 A407 A401

SA414

Legend

Run-off Station (MOWE) 0 25 50 km

Figure1-10 Runoff Stations in Asir Region

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-20 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

N

Makkah

Al-Baha Asir Najran Jazan

SA415

SA417

SA418

SA421

0 25 50 km

Legend : Run-off Station (MOWE)

Figure1-11 Runoff Stations in Jazan Region

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-21 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

N Makkah

Al-Baha Asir Najran Jazan

N401 Najran Legend

Run-off Station (MOWE) 0 25 50 km

Figure1-12 Runoff Stations in Najran Region

2. Hydrological Characteristics 2.1 Rainfall Characteristics in the Study Area Figure2-1 shows the isohyetal map of the study area using the mean annual rainfall data. The change over the years and the distribution of monthly rainfall are arranged and shown in Figure2-3 based on the rainfall data of rainfall stations shown in Figure2-2. The rainfall characteristics in the study area is summarized below with reference to the figure. • There is a lot of rain in Hijaz Asir Highland with over 200 mm, even to 400 mm or 500 mm in mean annual rainfall. • Except Hijaz Asir Highland and the surrounding area, there is 200 mm below in mean annual rainfall. • There is a little rain with 50 mm below in a northeastern part, facing the , in Makkah Region, a eastern part of Asir Region and most of Najran Region especially. • As mentioned above, the annual rainfall of the study area except Hijaz Asir Highland and the surrounding area is 50 mm below or 50 mm to 100 mm, which is equal to the annual rainfall in as the capital of KSA. (seer to the figure below) • Most of the study area has a lot of rain through October into May and a little rain through June into July, but on the other hand, Jazan Region has a lot of rain through July into September and a little through December into February.

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-22 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

Riyadh

Rainfall (mm) Rainfall (mm) Rainfall (mm) 100.0 500 500 450 450 80.0 400 400 350 350 300 300 60.0 250 250 5-year running mean 200 200 40.0 150 150 100 100 20.0 50 50

0 0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Mean Monthly Rainfall at R001 (Riyadh) Tendency of Yearly Rainfall at R001 (Riyadh)

Sources:MOWE Change Over Years and Monthly Rainfall Distribution in Riyadh

Figure2-1 Isohyetal Map in the Study Area

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-23 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

RainfallRainfall (mm) (mm) RainfallRainfall (mm) (mm) 500 500 500 500 N 450 450 450 450 400 400 400 400 350 350 350 350 300 300 300 300 250 250 250 5-year5-year runningrunning mean mean 250 200 200 200 200 150 150 J140 150 150 100 100 100 50 50 100 J220 50 0 0 50 9 3 6 0 77 988 91 001 03 0 1969 1972 1974 19 197 1984 1986 1 19 199 1996 1998 2 20 200 9 0 2 3 4 5 7 8 9 82 84 85 86 87 2 3 5 6 7 8 0 1 2 03 05 06 196 197 197 197 197 197 197 197 197 19 19 19 19 19 1988 1990 1991 199 199 199 199 199 199 200 200 200 20 20 20 TendencyTendency of of Yearly Yearly RainfallRainfall at J140at J140

TA250 Makkah Region B111

Al Baha J107 Al Baha Region B004 Legend

Rainfall Station (MOWE) J001 B006

B007 Asir Region

SA142 A107

RainfallRainfall (mm) (mm) RainfallRainfall (mm)(mm) 500 500 500500 450 450 450450 A121 400 400 400400 Najran Region 350 350 350350 5-year running running mean mean 300 300 300 300 250 250 SA415 250 250 200 200 200 200 150 150 150 150 Jazan Region 100 100 100 100 50 50 SA002 50 50 0 0

0 0 9 9 0 968 97 972 976 978 980 987 98 997 99 001 004 006 8 1 1 1 1974 1 1 1 0 1982 1985 1 1 1991 11993 1 1 2 2 2 4 6 8 0 SA101 196 1970 1972 1974 1976 1978 19 1982 1985 1987 1989 199 1993 1997 1999 2001 200 20 Jizan TendencyTendency of ofYearly Yearly Rainfall Rainfall at A107 at A107 SA137

RainfallRainfall (mm) (mm) RainfallRainfall (mm)(mm) 0 50 100 km 500 500 500500 450 450 450450 400 400 400400

350 350 350350 300 300 300300 250 250 250 250 200 200 200 5-year running mean 200 150 5-year running mean 150 150 150 100 100 100 100 50 50 50 50 0 0 0 0 67 69 71 73 77 79 83 85 91 92 94 96 00 02 05 9 9 9 9 ,9 9 ,9 0 0 1, 1, 1,9 1,9 1,975 1, 1, 1 1,9 1,987 1,989 1, 1 1,9 1,9 2,0 2, 2, 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1991 1992 1993 1994 1995 1996 1997 2000 2001 2002 2004 2005 TendencyTendency of ofYearly Yearly Rainfall Rainfall at SA137 at SA137 Figure2-2 Typical Rainfall Stations in the Study Area

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-24 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450

400 400 80.0 350 350

300 300 60.0 250 5-year running mean 250 200 200 40.0

150 150 100 100 20.0 50 50

0 0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 9 2 4 6 8 1 1 3 6 6 7 73 7 75 78 84 8 8 990 9 992 995 998 0 0 005 0 9 9 9 9 19 1970 19 1 19 1 1977 1 1979 1982 1 1985 19 1987 19 1 19 1 1993 1 1996 1997 1 2000 20 2002 20 2 20 Tendency of Yearly Rainfall at J140 Mean Monthly Rainfall at J140 Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450 400 400 80.0 350 350

300 300 60.0 250 5-year running mean 250 200 200 40.0 150 150 100 100 20.0 50 50

0 0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1997 1998 1999 2000 2001 2003 2004 Mean Monthly Rainfall at J220 Tendency of Yearly Rainfall at J220 Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450 400 400 80.0 350 350

300 300 60.0 5-year running mean 250 250

200 200 40.0 150 150 100 100 20.0 50 50

0 0 0.0 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 2001 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Tendency of Yearly Rainfall at TA250 Mean Monthly Rainfall at TA250 Sources:MOWE Figure2-3(1) Change Over Years and Monthly Rainfall Distribution in Northern Part

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500.0 500 100.0 450.0 450

400.0 400 80.0 350.0 350 300.0 300 60.0

250.0 250

200.0 200 40.0 5-year running mean 150.0 150 100.0 100 20.0 50.0 50

0.0 0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1981 1982 1986 1987 1989 1990 1992 1994 1995 1996 1997 1998 1999 2000 2002 2003 2004 2005 Tendency of Yearly Rainfall at J107 Mean Monthly Rainfall at J107

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500.0 500 100.0 450.0 450

400.0 400 80.0 350.0 350 300.0 300 60.0 250.0 250 5-year running mean 200.0 200 40.0 150.0 150 100.0 100 20.0 50.0 50 0.0 0 0.0

2 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 74 76 77 79 81 86 88 95 97 1970 1971 197 1973 19 1975 19 19 1978 19 1980 19 1982 1983 1984 1985 19 1987 19 1994 19 19 1998 Tendency of Yearly Rainfall at J001 Mean Monthly Rainfall at J001

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450

400 400 80.0 350 350 5-year running mean 300 300 60.0 250 250 200 200 40.0 150 150 100 100 20.0 50 50

0 0 0.0

1 3 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 66 77 79 81 83 85 87 89 9 9 95 97 05 19 1971 1973 1975 19 19 19 19 19 19 19 19 19 19 19 1999 2001 2003 20 Tendency of Yearly Rainfall at SA142 Mean Monthly Rainfall at SA142

Sources:MOWE Figure2-3(2) Change Over Years and Monthly Rainfall Distribution in Western Part

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-25 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

Rainfall (mm) Rainfall (mm) Rainfall (mm) 526.1 585.9 576.5 500 500 5-year running mean 100.0 450 450 400 400 80.0 350 350

300 300 60.0 250 250 200 200 40.0 150 150 100 100 20.0 50 50

0 0 0.0 5 7 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 67 71 80 85 89 93 01 05 1965 19 1969 19 1973 197 1978 19 1983 19 1987 19 1991 19 1995 199 1999 20 2003 20 Tendency of Yearly Rainfall at B007 Mean Monthly Rainfall at B007

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450

400 400 80.0 350 350 5-year running mean 300 300 60.0 250 250

200 200 40.0 150 150 100 100 20.0 50 50 0 0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 8 5 9 4 978 997 196 1970 1972 1974 1976 1 1980 1982 198 1987 1989 1991 1993 1 199 2001 200 2006 Tendency of Yearly Rainfall at A107 Mean Monthly Rainfall at A107

Rainfall (mm) Rainfall (mm) 694 554 545 Rainfall (mm) 500 500 100.0 5-year running mean 450 450 400 400 80.0 350 350 300 300 60.0 250 250

200 200 40.0 150 150 100 100 20.0 50 50 0 0 0.0 5 1 9 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 6 67 7 73 77 81 83 85 87 8 91 93 97 01 05 19 19 1969 19 19 1975 19 1979 19 19 19 19 19 19 19 1995 19 1999 20 2003 20 Tendency of Yearly Rainfall at A121 Mean Monthly Rainfall at A121 Sources:MOWE Figure2-3(3) Change Over Years and Monthly Rainfall Distribution in Hijaz Asir Highland

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450 400 400 80.0 350 350

300 300 60.0 250 250 200 200 40.0 5-year running mean 150 150 100 100 20.0 50 50

0 0 0.0 1965 1966 1967 1968 1969 1970 1971 1974 1976 1982 1985 1986 1991 1992 1993 1994 1995 1996 1997 2001 2002 2004 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Tendency of Yearly Rainfall at B111 Mean Monthly Rainfall at B111

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450

400 400 80.0 350 350 300 300 60.0 250 250 5-year running mean 200 200 40.0 150 150 100 100 20.0 50 50 0.0 0 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2 3 1 966 970 971 79 80 84 85 989 92 93 96 97 98 01 02 03 1965 1 1 1 197 197 1974 1975 1976 19 19 1981 1982 1983 19 19 1986 1987 1988 1 1990 199 19 19 1994 1995 19 19 19 1999 2000 20 20 20 2004 Tendency of Yearly Rainfall at B004 Mean Monthly Rainfall at B004

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100 450 450 400 400 80 350 350

300 300 60 250 250

200 200 40 5-year running mean 150 150 100 100 20 50 50

0 0 0 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1999 200020012002 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Tendency of Yearly Rainfall at B006 Mean Monthly Rainfall at B006 Sources:MOWE Figure2-3(4) Change Over Years and Monthly Rainfall Distribution in Eastern Part

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-26 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450 400 400 80.0 350 350

300 300 60.0 5-year running mean 250 250 200 200 40.0 150 150 100 100 20.0 50 50 0 0 0.0 69 73 77 83 87 91 01 ,9 ,9 ,9 ,981 ,9 ,9 ,9 ,999 ,0 1,965 1,967 1 1,971 1 1,975 1 1,979 1 1 1,985 1 1,989 1 1,993 1 2 2,005 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Tendency of Yearly Rainfall at SA002 Mean Monthly Rainfall at SA002 Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0

450 450 400 400 80.0 350 350

300 300 60.0 5-year running mean 250 250

200 200 40.0 150 150 100 100 20.0 50 50 0 0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1995 1999 2000 2001 2002 2005 2006 Tendency of Yearly Rainfall at SA002 Mean Monthly Rainfall at SA002 Rainfall (mm) Rainfall (mm) Rainfall (mm) 500 500 100.0 450 450 400 400 80.0

350 350 300 300 60.0 250 250 200 200 40.0 5-year running mean 150 150 100 100 20.0 50 50 0 0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1991 1992 1993 1994 1995 1996 1997 2000 2001 2002 2004 2005 Tendency of Yearly Rainfall at SA137 Mean Monthly Rainfall at SA137 Sources:MOWE Figure2-3(5) Change Over Years and Monthly Rainfall Distribution in Southern Part

2.2 Rainfall Characteristics in Regions (1) Makkah Region There are 34 Rainfall Stations under the control of MOWE as shown in Figure2-4, besides these stations, PME has 4 Rainfall Gauges. The tendencies for rainfall distribution are arranged and shown in Figure2-5 based on the typical stations data. The rainfall characteristics in Makkah Region are summarized below. • Annual Rainfall varies rises or falls fluctuating widely every year. • There is a lot of rain with over 200 mm, even to 300 mm in mean annual rainfall in the neighborhood of Hijaz Asir Highland near the border with Al Baha Region. • On the other hand, except Hijaz Asir Highland, there is 200 mm below in mean annual rainfall. • There is a little rain with 50 mm below in the flatland facing the Red Sea and the eastern part . • There is a lot of rain through November into January or through March into May, and a little rain through June into July. • As there is a lot of rain in southern part near Hijaz Asir Highland, the water resources potential seems to be also limited in this area. • The mean annual rainfall of Makkah Region is 109 mm calculated by the Isohyetal Map.

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-27 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

Rainfall (mm) Rainfall (mm) 500Rainfall (mm) Rainfall (mm)500 500 500 450 450 450 450 400 400 400 400 350 350 350 350 300 300 300 300 250 250 250250 200 200 200200

150 150 150150 5-year5-year running runningmean mean 100 100 100100 50 50 50 Rainfall50 Rainfall (mm) (mm) RainfallRainfall (mm) (mm) 0 0 500 500 500 500 0 0 66 72 978 984 450 450 6 198 19680 1970 19 1974 1976 1 1980 1982 1 1986 1988 1992 1994 1996 1999 2001 2003 2005 450 450 196 196 197 1972 1974 1976 1978 1980 1982 1984 1986 1988 1992 1994 1996 1999 2001 2003 2005 Tendency of Yearly Rainfall at J111 400 400 400 400 Tendency of Yearly Rainfall at J111 350 350 350 350 300 300 J111 300 300 250 250 250 5-year running mean 250 200 5-year running mean 200 200 200 150 150 150 150 100 100 100 100 50 50 50 50 0 0 0 0 70 76 78 80 84 87 93 95 00 03 1966 1968 19 1972 1974 19 19 19 1982 19 19 1989 1991 19 19 1998 20 20

J140 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1997 1998 1999 2000 2001 2003 2004 TendencyTendency of of YearlyYearly Rainfall Rainfall at J220 at J220

J116

J220

J002 Legend J219

J106 Rainfall Station (MOWE) J239 J214 J221

TA250

Jeddah J134 J114 J102 J113 J205 TA251 J204 TA206

TA233

RainfallRainfall (mm) (mm) RainfallRainfall (mm) (mm) RainfallRainfall (mm) (mm) 605.6605.6 RainfallRainfall (mm) (mm) 500500 500500 500 500 500500 450450 450450 450 450 450450

400400 400400 400 400 400400

350350 350350 350 350 350350 5-year5-year running running mean mean 300300 300300 300 300 300300 250250 250250 250 250 5-year5-year runningrunning meanmean 250 250 200200 200200 200 200 200 200 150150 150150 150 150 150 150 100100 100100 100 100 100 100 5050 5050 50 50 50 50 0 0 00 0 0 0 0 0 4 4 4 4 6 8 1 7 9 3 70 76 78 91 93 95 05 5 3 1 3 1 97 9769 9789 98 986 9 9 999 0005 971 973 97 979 981 98 985 989 99 99 997 999 00 005 19 1 19721972 197197 1 1 1 1 1981 1 198 1988198 1991 191993 19951 199 1991 20012001 2003200 22 1 1 1 1977 1 1 1 1 1987 1 1 1 1995 1 1 2 2003 2 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 TendencyTendency ofof YearlyYearly RainfallRainfall at J134 TendencyTendency of of YearlyYearly Rainfall Rainfall at TA233 at TA233 Figure2-4(1) Rainfall Stations in Makkah Region

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-28 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

RainfallRainfall (mm) (mm) RainfallRainfall (mm) (mm) 500.0 500.0 500 500

450.0 450.0 450 450 400.0 400.0 400 400 350.0 350 350.0 350 300.0 300 300.0 300 250.0 250 250.0 250 200.0 200 200.0 5-year running mean 200 150.0 5-year running mean 150 150.0 150 100.0 100 100.0 100 50.0 50 50.0 50 0.0 0

0.0 8 0 6 9 2 9 2 4 0 96 97 981 98 98 9 99 00 00 1966 1 1 1972 1974 1976 1 1 1 19 1995 1997 1 2 2 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1981 1982 1986 1987 1989 1990 1992 1994 1995 1996 1997 1998 1999 2000 2002 2003 2004 2005 TendencyTendency of ofYearly Yearly Rainfall Rainfall at J107 at J107

J003 J107

J108

Rainfall (mm) RainfallRainfall (mm) (mm) Rainfall (mm) 570 570 500.0 500.0 500 500 450.0 450.0 450 450 5-year5-year running running mean mean 400.0 400.0 400 400 350.0 350.0 350 350 300.0 300 300.0 300 250.0 250 250.0 250 200.0 200 200.0 200 150.0 150 J001 150.0 150 100.0 100 J131 100.0 100 50.0 50 SA120 50.0 0.0 0 50

8 4 0 6 2 6 8 2 4 0.0 96 97 98 98 99 99 99 00 00 0 1 1970 1972 1 1976 1978 1 1982 1984 1 1988 1990 1 1994 1 1 2000 2 2 80 00 1968 1970 1972 1974 1976 Tendency1978 19 1982 of1984 Yearly1986 1988Rainfall1990 1992 at SA1201994 1996 1998 20 2002 2004 Tendency of Yearly Rainfall at SA120 SA005 SA122

SA147

Legend SA142

Rainfall Station (MOWE) SA004

Figure2-4(2) Rainfall Stations in Makkah Region

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-29 The Study on Master Plan on Renewable Water Resources Development in the Southwest Region in the Kingdom of Saudi Arabia

Rainfall (mm) Rainfall (mm) 500 Rainfall (mm) Rainfall (mm)500 500 500 450 450 450450 400 400 400400 350 350 350350 300 300 300300 250 250 250 250 200 200 200 5-year running mean 200 150 5-year running mean 150 150 150 100 100 100 50 50 100 50 0 0 50

4 6 2 2 4 0 965 966 967 68 69 70 71 993 994 995 96 97 01 0 1 1 1 19 19 19 19 197 197 198 1985 1986 1991 1992 1 1 1 19 19 20 200 200 1965 1966 1967 1968 1969 1970 1971 1974 1976 1982 1985 1986 1991 1992 1993 1994 1995 1996 1997 2001 2002 2004 TendencyTendency of of Yearly Yearly Rainfall Rainfall at B111at B111

TA005 B111 B407

Legend

Rainfall Station (MOWE) A006

Rainfall (mm) Rainfall (mm) 500 Rainfall (mm) Rainfall (mm)500 500 500 450 450 450450 400 400 400400 5-year5-year runningrunning mean mean 350 350 350350 300 300 300300

250 250 250250 200 200 200 200 150 150 150 150 100 100 100 100 50 50 50 50 0 0 0 0

1973 1974 19751973 19761974 19781975 19791976 19801978 1979 19811980 19821981 19831982 19841983 19851984 19861985 19871986 1987 19881988 19891989 19901990 19911991 19921992 19931993 1994 1995 19951996 1996 Tendency of Yearly Rainfall at A006 Tendency of Yearly Rainfall at A006 Figure2-4(3) Rainfall Stations in Makkah Region

YACHIYO ENGINEERING CO., LTD. Final Report(Supporting Report(B)) SANYU CONSULTANTS INC. SP-B-30