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4186692 
Journal Article 
Pumping effects on land subsidence in the Toluca Valley, Mexico 
Calderhead, AI; Martel, R; Garfias, J; Rivera, A; Therrien, R 
2010 
Yes 
IAHS Proceedings and Reports
ISSN: 0144-7815 
IAHS Publication 
339 
461-+ 
WOS:000298025200086 
The Toluca Valley, Mexico, experiences heavy groundwater pumping and significant land subsidence. This study examines pumping induced regional land subsidence of the Toluca Valley. The study is divided as follows: (1) obtaining InSAR data, field data, and all available literature for the Toluca Valley; (2) coupling compaction to the groundwater flow equation with the HGS model; and (3) constraining the model with available data to eventually examine several pumping scenarios for minimizing future land subsidence. It is apparent that continuing at the current rates of the water consumption will lead to more subsidence. Average estimates predict a maximum subsidence in the valley that will reach 1.2 m in the next 40 years. 
land subsidence; 1-D geomechanical model; InSAR; Toluca, Mexico 
• Inorganic Mercury Salts (2)
     Mercuric Sulfide
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