The River Walbrook and Roman London
This thesis is concerned with the hydrology of the River Walbrook and its influence on Roman London. The Walbrook had a small catchment (4.7 km2), most of which was rural in the Roman period, and flowed to the Thames through urban Roman London. The research is based upon data abstracted from reports, plans and sections of seventy archaeological investigations in the urban Roman Walbrook Valley, supplemented by archaeological literature, maps, boreholes and modern data. A methodology specifically developed for the research is described and hydrological descriptors of the Roman Walbrook and catchment are recreated, as they would have been 2,000 years ago, for a river that has not flowed for at least 400 years. A mean base flow rate of the river in the Roman period of 87 litres/sec is derived by means of a surrogate river analysis. An analysis of geoarchaeological data using GIS (Geographic Information System) is used to re-create the pre-Roman and late Roman land surfaces and to define the course and bed slopes of the river through urban Roman London and hence its flow-full capacity. A storm flow regime is derived and used to assess flood frequency for key areas within urban Roman London for a range of 36 channel
Myers, S. D.
The River Walbrook and Roman London. This thesis is concerned with the hydrology of the River Walbrook and its influence on Roman London. The Walbrook had a small catchment (4.7 km2), most of which was rural in the Roman period, and flowed to the Thames through urban Roman London. The research is based upon data abstracted from reports, plans and sections of seventy archaeological investigations in the urban Roman Walbrook Valley, supplemented by archaeological literature, maps, boreholes and modern data. A methodology specifically developed for the research is described and hydrological descriptors of the Roman Walbrook and catchment are recreated, as they would have been 2,000 years ago, for a river that has not flowed for at least 400 years. A mean base flow rate of the river in the Roman period of 87 litres/sec is derived by means of a surrogate river analysis. An analysis of geoarchaeological data using GIS (Geographic Information System) is used to re-create the pre-Roman and late Roman land surfaces and to define the course and bed slopes of the river through urban Roman London and hence its flow-full capacity. A storm flow regime is derived and used to assess flood frequency for key areas within urban Roman London for a range of 36 channel
river roman london concern hydrology river influence roman london small catchment rural roman_period flow thames urban roman london base_upon data abstract report plan section seventy archaeological_investigation urban roman valley supplement archaeological literature map boreholes modern data specifically develop describe hydrological roman catchment recreate would river flow least mean base flow rate river roman_period quantity derive mean river analysis analysis geoarchaeological data use_gis use create pre_roman late_roman land surface define course bed river urban roman london hence flow full capacity storm flow regime derive used ass flood frequency key_area within urban roman london range channel