scholarly journals Simulation of runoff and recharge and estimation of constituent loads in runoff, Edwards aquifer recharge zone (outcrop) and catchment area, Bexar County, Texas, 1997-2000

2002 ◽  
Keyword(s):  
Catchment Area ◽  
Aquifer Recharge ◽  
Edwards Aquifer ◽  
Bexar County

scholarly journals Historical analysis of a karst aquifer: recharge, water extraction, and consumption dynamics on a tourist island (Cozumel, Mexico)

2021 ◽  
Vol 57 ◽  
pp. 16
Author(s):  
Gerardo Hernández-Flores ◽  
Martha Angélica Gutiérrez-Aguirre ◽  
Adrián Cervantes-Martínez ◽  
Ana Elizabeth Marín-Celestino
Keyword(s):  
Catchment Area ◽  
Water Resource Management ◽  
Karst Aquifer ◽  
Historical Analysis ◽  
Water Extraction ◽  
Groundwater Extraction ◽  
Aquifer Recharge ◽  
Monthly Data ◽  
Cozumel Island ◽  
Increasing Trends

On Cozumel Island, access to freshwater depends on the extraction of the resource from the aquifer located north of the island (catchment area). Water resource management on the island must be based on updated knowledge of the indicator dynamics related to the recharge of the aquifer, groundwater extraction and the distribution of the resource. In this study, trends, variations and time series of 30 years of monthly data for precipitation, temperature, evapotranspiration, and estimated aquifer recharge were calculated for the catchment area. Additionally, groundwater extraction, water consumption for the main uses over a 13-year period (monthly data), and the 5-year status of wells were considered. The results show decreasing trends in precipitation and estimated recharge volumes in the catchment area, in addition to increasing trends in mean air temperature, evapotranspiration, water extraction volumes and consumption by the commercial sector for the considered time periods. Additionally, an increase in dejected (77%) and reposed (38%) wells within the catchment area was observed. Evidence from this study suggests a dynamic behaviour of the analysed indicators over time that increases pressure on karstic, Caribbean aquifers for which monthly monitoring and data analysis are encouraged as the basis for adequate management.

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