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Table 4.14 Long Term Mean Monthly Rainfall and Potential Evapotranspiration for Four Cities in Bangladesh Months January February March April May June July August Sept. Oct. Nov. Dec. Annual Total Source: Rashid, 1991 Dhaka Chittagong Rajshahi Khulna Rainfall 1953-77 ET0 Rainfall 1947-77 ET0 Rainfall 1947-78 ET0 Rainfall 1947-78 ET0 9 89 7 73 13 72 8 88 20 110 15 113 10 93 19 107 55 169 53 153 29 135 36 150 114 188 119 178 81 170 93 162 265 188 242 177 266 168 184 171 375 133 589 133 520 133 350 115 463 144 759 146 439 134 393 118 323 140 547 141 319 129 286 113 276 128 279 136 279 123 280 112 166 120 60 125 160 110 161 120 29 99 61 105 9 89 25 103 0 94 10 93 1 73 15 88 2095 1602 2741 1573 2126 1429 1850 1447 Table 4.15 Flooded Areas 1954-1988 Year Flooded area (km 2 ) % total land area flooded 1954 1955 1956 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1980 1982 1983 1984 1985 1986 1987 1988 Source: Miah, 1988 and Brammer, 1990 36920 50700 35620 28600 28860 37440 43160 31200 28600 33540 25740 37440 41600 42640 36475 20800 29900 52720 16590 28418 12548 10832 33077 3149 11112 28314 11427 4589 57491 82000 A-28 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com 25.6 35.2 24.7 19.8 20.0 26 29.9 21.6 19.8 23.3 17.8 26 28.8 29.6 25.3 14.4 20.7 36.6 11.5 19.7 8.7 7.5 22.9 2.1 7.7 19.6 7.9 3.1 39.9 56.9
Table 4.16 Approximate Wet Season Regional Groundwater Gradients Location Gradient (m km -1 ) Maximum North 2 Central 0.5 Southern Source: BWDB (Unpublished) 0.1 A-29 Gradient (m km -1 ) Maximum 0.5 0.1 0.01 Table 4.17 Summary of Change in Use of Irrigation Technologies, Expressed as a Percentage of the Overall Irrigation Volume Mode of irrigation 1982-83 1996-97 Groundwater Shallow tube well Deep tube well Manual operated pump unit Surface water Low-lift pump Traditional Canal Source: BGS-DPHE (2001) 24 15 1 22 28 10 Table 4.18 Summary of Irrigation Abstraction Modes Operating in Bangladesh During 1996- 1997 Aquifers Technology Units operating Highland Grey fine to medium sands within floodplains, with shallow (
Page 1 and 2: Government of the People’s Republ
Page 3 and 4: Presentation of the Report Abbrevia
Page 5 and 6: A-44 ANNEX I MINISTRY OF LOCAL GOVE
Page 7 and 8: PDF created with FinePrint pdfFacto
Page 21 and 22: CONTENTS INTRODUCTION 1 GEOMORPHOLO
Page 23 and 24: The Flood plain and the Bengal Delt
Page 25 and 26: composed of alternating beds of san
Page 27 and 28: Lalmai Hills area is considered as
Page 29 and 30: C E N O Z O I T E R T I A R Y N E O
Page 31 and 32: Upzilas Partially Covered by Safe A
Page 33 and 34: A-15 Annex- 6 Upzilas Completely an
Page 35 and 36: Fig 2. Map showing the area of arse
Page 37 and 38: Table 4.2 Aquifer Types and Charact
Page 39 and 40: 1 2 3 4 5 Unit-21: Madhupur Transit
Page 41 and 42: Table 4.3 The Main Aquifers in Bang
Page 43 and 44: 19 Kushtia 709.85 2500 0.0072 0.252
Page 45: Table 4.11 Estimates of Flow and Ti
Page 49 and 50: Table 5.3 Summary of Pre-Existing L
Page 51 and 52: Table 5.5 Arsenic Results of Repres
Page 53 and 54: Table 5.16 Arsenic Statistics for t
Page 55 and 56: Sl # DIVISION DISTRICT UPAZILA As C
Page 57 and 58: Sl # DIVISION DISTRICT UPAZILA As C
Page 59 and 60: Geological Survey of Bangladesh\ Ge
Page 61 and 62: Upazila: Akhaura, Brahmanbaria Sada
Page 63 and 64: Dumuria Upazila, Khulna District #
Page 65 and 66: information to write such a report.
Page 67 and 68: 2.1 Introduction CHAPTER II Physiog
Page 69 and 70: Fig. 2.2 Physiographic Map of Bangl
Page 71 and 72: 2.3.3 The Pleistocene Uplands cover
Page 73 and 74: winter when the volume of water pas
Page 75 and 76: country. The central part represent
Page 77 and 78: Fig. 3.2b. Schematic Crustal Cross
Page 79 and 80: 3.1.6 During the Pleistocene and Ho
Page 81 and 82: Fig. 3.5 Lithologic Column Showing
Page 83 and 84: microfossils have been assigned Upp
Page 85 and 86: 3.4 late Pleistocene-Holocene in Be
Page 87 and 88: marine and fresh water peat. After
Page 89 and 90: Organic matter from the uppermost p
Page 91 and 92: 3.4.4 Proposed Divisions of the lat
Page 93 and 94: 3.4.4.4 Late Pleistocene -Early Hol
Page 95 and 96: 4.1 Introduction CHAPTER IV Aquifer
Page 97 and 98:
Fig. 4.1 Groundwater Development Zo
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Fig. 4.3 Revised Hydro-geological M
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Quaternary. Due to neo-tectonic act
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4.7.2 The sediment from the surface
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4.10 Recharge of the aquifers 4.10.
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4.10.5 The regional hydraulic gradi
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Fig. 4.11 Geological Cross Section
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(centrifugal) pump. BADC defines th
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5.4.2 From 1993 different organizat
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5.4.6 NGO Forum and Grameen Bank ha
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These areas are as follows. 1. The
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5.6.3 BGS-DPHE (2001) shows that wa
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continually replenished with a resi
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5.7.2 Some test results of ground s
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CHAPTER VI CONCLUSIONS ♦ Arsenic
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The JICA report mentions that, "The
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working on ground water under one u
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sections of the sediments of the de
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♦ Soil arsenic analyses in the ar
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Bhattacharya, A. and Banerjee S.N,
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Ministry of Women and Children Affa
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Aquifer Systems of Bangladesh 4.1 I
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Fig. 4.3 Revised Hydro-geological M
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Table. 5.4 Summary of Regional Arse
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As Arsenic List of Abbreviations Us
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EXECUTIVE SUMMARY 1. Ministry of Lo
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9. The exact number of hand pumps u
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areas ground water can still play a
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