Erosion in Tijuana: Socioeconomic Interactions with Sediment Budgets under Rapid Urbanization

نویسنده

  • TRENT W. BIGGS
چکیده

The goal of this study was to estimate the amount of sediment that has filled the Goat Canyon sedimenttraps after the 2008-2009 winter storm season. This was accomplished by performing GIS analysis with“before” and “after” topographic surveys of the sediment traps. Approximately 66.7 thousand metric tons of sediment accumulated in the trap system (two traps anddiversion structure) in a single year (October 2008 to April 2009). This estimate compared well with theannual sediment accumulation measured from topographic surveys of the estuary over 1992-1998 (68.9tons) but is significantly higher than estimated loads from 1986-1992 (3,455 tons). The difference overthe three time periods may be due to a combination of climate and land use.

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تاریخ انتشار 2011