The NIES Integrated Catchment-based Eco-hydrology (NICE) model was expanded to include the density current and solute-transport process of groundwater in the Kanto Plain and to incorporate the effects of water table and tidal fluctuations around the eutrophic Tokyo Bay, Japan (NICE-SEA). The simulation reproduced excellently the observed values of river discharge and groundwater level in the catchment. The simulated groundwater level shows a minus value (below the sea level) around the Tokyo metropolitan area because of excessive withdrawal around the urban area in the past. The model shows that the underground urban structures, sewage pipes, seashore concrete dikes, and embankments have changed the hydrologic cycle in the catchment and the nutrient supply to Tokyo Bay. In particular, the groundwater flow is interrupted and the phase is delayed, resulting in an increase in the groundwater level, and a decrease of groundwater seepage into Tokyo Bay. Furthermore, we propose four types of political scenario for provisioning human ecosystem service (ES) sites to promote infiltration. The simulated result forecasts that the groundwater level increases predominantly at a maximum value exceeding 40 cm in a scenario for farmland and productive green areas and that the level recovers in some parts of the urban area. This phenomenon is related to the cut-off of groundwater flow by underground urban structures and the sewer leakage into the aquifer, which also influences the decrease of submarine groundwater discharge around the western side of Tokyo Bay.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.scitotenv.2006.11.033 | DOI Listing |
Catheter Cardiovasc Interv
January 2025
The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Background: Limited data exist on the impact of polyvascular disease (PolyVD) on clinical outcomes in female patients undergoing transcatheter aortic valve replacement (TAVR). We therefore sought to investigate clinical outcomes in women with versus without PolyVD undergoing TAVR.
Methods: Female participants from the multicentre Women's International Transcatheter Aortic Valve Implantation (WIN-TAVI) registry were categorized based on the presence or absence of PolyVD.
Crit Care Med
January 2025
Both authors: Department of Emergency and Critical Care Medicine, Tokyo Bay Urayasu Ichikawa Medical Center, Chiba, Japan.
Pacing Clin Electrophysiol
January 2025
Department of Cardiovascular Medicine, Institute of Science Tokyo, Bunkyo-ku, Tokyo, Japan.
Phys Rev Lett
December 2024
CERN, Geneva, Switzerland.
High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.
View Article and Find Full Text PDFEnviron Pollut
December 2024
Department of Systems Design for Ocean-Space, Faculty of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama, Kanagawa, 2408501, Japan. Electronic address:
This study developed a numerical simulation model for a marine ecosystem to determine accumulation levels of polychlorinated biphenyls (PCBs) in top predators (seabasses). The simulated results were used for calculating probabilities of exceeding tolerable daily intake (TDI) of seafoods enforced by the US and Japanese governments. The model was applied to Tokyo Bay, Japan.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!