Effect of underground urban structures on eutrophic coastal environment

Nakayama, Tadanobu; Watanabe, Masataka; Tanji, Kazunori; Morioka, Toshio

doi:10.1016/j.scitotenv.2006.11.033

Cited by 41 publications

(63 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The geological structures were divided into four types on the basis of hydraulic conductivity, the specific storage of porous material, and specific yield by scanning and digitizing the geological material [16,35] and core-sampling data. Artificial augmentation of waterworks and sewerage systems, and anthropogenic sensible, latent, and sewage heats generated by buildings and factories were input into the model [16,17,26].…”

Section: Model Input Data and Statistical Analysis Of Decoupling Indimentioning

confidence: 99%

“…Time-series of tidal level was input as a variable head at the sea boundary [1,7,16,25]. Vertical geological structures were divided into 10-20 layers with a weighting factor of 1.1 (finer at the upper layers) by using sample database.…”

Section: Boundary Conditions and Running The Simulationmentioning

confidence: 99%

“…1). In the Tokyo area, the simulation was conducted with multi-scaled levels in horizontally regional area (260 km wide by 260 km long with a grid spacing of 2 km covering Kanto region) nesting with one way to urban area (36 km wide by 26 km long with 200 m grid covering the Kawasaki City) [16,17,26]. These areas were discretized with a grid spacing of 200 m-5 km in the horizontal direction.…”

Section: Boundary Conditions and Running The Simulationmentioning

confidence: 99%

“…Because this heat relaxation in newly symbiotic pavement is closely related to the heat capacity of water and the conductivity of the pavement, it is estimated that groundwater use in almost constant temperature as a heat sink would be very effective for tackling the heat island [14]. On the other hand, the metropolitan area has been troubled with serious damage by an imbalance of hydrologic cycle, for example, flooding and buoyant forces to underground infrastructures after the regulation of groundwater use [15,16]. Water and thermal pollutions in water area is also becoming serious every year.…”

Section: Introductionmentioning

confidence: 99%

“…Watersides are becoming precious as an urban cool-island in addition to open parks and green areas [14]. A policy to promote infiltration into the aquifer is also important to prevent ground degradation as has occurred in the past [16,17].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Impact of water degradation on ecosystem change and adaptation strategy for sustainable development

Nakayama¹

2011

Water and Society

View full text Add to dashboard Cite

Environmental pollution is becoming intertwined with degradations of water environment, imbalance of the hydrologic cycle, thermal environment, and contamination. Water stress has intensified water use conflicts between upstream and downstream and between agriculture and municipal/industrial sectors. Here, the process-based National Integrated Catchment-based Eco-hydrology (NICE) model, which includes interactions between surface water, canopy, unsaturated water, aquifer, lake, and rivers, was applied to develop coupled human and natural systems and to assess the impact of water degradation on ecosystem change. Combinations of a numerical model, satellite image, and statistical analysis showed close relationship between water resource and economic growth, which has greatly affected ecosystem degradation and its serious burden on the environment. The author also presented a procedure to visualize the missing role of hydrothermal interactions in atmospheric, land and water areas, which would be effective to recover the sound hydrologic cycle and to create thermally-pleasing environments in an eco-conscious society. The procedure to construct an integrated assessment system for win-win solution would support decision-making on sustainable development and adaptation to climate change and urbanization in global scale.

show abstract