Distribution of Tidal Phases ndal Day When the Moon is at first quarter or third Tdal Period Tidal Period quarter,the sun and Moon are separated by 90 when viewed from the Earth,and the solar tidal force partially cancels the Moon's. 1 At these points in the lunar cycle,the tide's range is at its minimum;this is called SEMIDIURNAL TIDE the neap tide,or neaps.Neap is an Anglo- Tdal Perlod Tdal Day Saxon word meaning "without the power". H灯her Lower High High Wate Water Tdal Datum 凡se Range 上弦月 Tdal 張弦月 月球自 博方向 2 Higher Range Low Water Tdal Ampldude- Lower Low Water MIXED TIDE 12 Range ndalDay Tdal Perod 出 表弦月 Datum DIURNAL TIDE 近月面 殘月 方而 下弦月
When the Moon is at first quarter or third quarter, the sun and Moon are separated by 90° when viewed from the Earth, and the solar tidal force partially cancels the Moon's. At these points in the lunar cycle, the tide's range is at its minimum; this is called the neap tide, or neaps. Neap is an AngloSaxon word meaning "without the power
Shanghai waterways Thirdly,Shanghai river network is equipped with about 2000 sluice gates to control the water elevation of inland rivers,for the purpose of urban flooding control. zhou Creek However,sluice gates are usually closed,and therefore the water flowing is stagnant Huangpu Rive over the majority of the area, unfavorable for pollutant's 奉贤县 self-purification within the water
卢湾区 徐汇区 长宁区 普陀区 闸北区虹口区 杨浦区 闵行区 宝山区 嘉定区 浦东新区 南汇县 奉贤县 松江区 金山区 青浦区 崇明县 静安区黄浦区 Thirdly, Shanghai river network is equipped with about 2000 sluice gates to control the water elevation of inland rivers, for the purpose of urban flooding control. However, sluice gates are usually closed, and therefore the water flowing is stagnant over the majority of the area, unfavorable for pollutant’s self-purification within the water. Shanghai waterways Huangpu River Suzhou Creek
闸门类型 0套闸 @节制闸 ③水利枢纽 Current sluice gates 1826
湖 淀 山 拦 路 港 太 浦 河 泖 河 园 大 蒸 港 油 塘 胥 浦 淀 墩 横 塘 泾 泄 潦 浏 河 石 掘 港 港 吴 泖 泾 黄 斜 港 浦 淞 长 浦 河 蕴 藻 苏 州 江 杭 州 湾 浜 河 浦 江 港 汇 江 金 江 黄 大 治 杨 川 口 河 河 闸门类型 套闸 节制闸 水利枢纽 Current sluice gates 1826
Shanghai waterways the integrated water environment rehabilitation must be implemented on the basis of catchment scale, considering regional point pollution control Suzhou Creek and non-point pollution control, balance between water quality and water quantity,land area Huangpu River rehabilitation and water quality response. 奉贤县
卢湾区 徐汇区 长宁区 普陀区 闸北区虹口区 杨浦区 闵行区 宝山区 嘉定区 浦东新区 南汇县 奉贤县 松江区 金山区 青浦区 崇明县 静安区黄浦区 the integrated water environment rehabilitation must be implemented on the basis of catchment scale, considering regional point pollution control and non-point pollution control, balance between water quality and water quantity, land area rehabilitation and water quality response. Shanghai waterways Huangpu River Suzhou Creek
Case Study:Suzhou Creek Rehabilitation
Case Study: Suzhou Creek Rehabilitation