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Do Flow Rates Respond Asymmetrically to Water Level? Evidence from the Edwards Aquifer


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  • Bradley Ewing
  • Teresa Kerr
  • Mark Thompson


This research examines the time series relationship between the Comal Springs flow rate and the water level in the Edwards Aquifer (Well J-17). The empirical methodology utilizes threshold autoregression (TAR) and momentum-TAR models that allow for asymmetry in responses and adjustments to a disequilibrium in the long-run cointegrating relationship. Based on the results, an asymmetric error-correction model (AECM) is proposed to characterize the short-run and long-run dynamic relationship between spring flow and water level. The results have implications for the management of water resources, water demand, and ecosystems.

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Bibliographic Info

Article provided by Taylor & Francis Journals in its journal Journal of Applied Statistics.

Volume (Year): 33 (2006)
Issue (Month): 10 ()
Pages: 1121-1129

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Handle: RePEc:taf:japsta:v:33:y:2006:i:10:p:1121-1129

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Keywords: Threshold cointegration; asymmetric adjustment; spring flow; water level; Edwards Aquifer;


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