A methodology to asess relations between climatic variability and variations in hydrologic time series in the southwestern United States

Abstract A new method for frequency analysis of hydrologic time series was developed to facilitate the estimation and reconstruction of individual or groups of frequencies from hydrologic time-series and facilitate the comparison of these isolated time-series components across data types, between different hydrologic settings within a watershed, between watersheds, and across frequencies. While climate-related variations in inflow to and outflow from aquifers have often been neglected, the development and management of ground-water and surface-water resources has required the inclusion of the assessment of the effects of climatic variability on the supply and demand and sustainability of use. The regional assessment of climatic variability of surface-water and ground-water flow throughout the southwestern United States required this new systematic method of hydrologic time-series analysis. To demonstrate the application of this new method, six hydrologic time-series from the Mojave River Basin, California were analyzed. The results indicate that climatic variability exists in all the data types and are partially coincident with known climate cycles such as the Pacific Decadal Oscillation and the El Nino–Southern Oscillation. The time-series also indicate lagged correlations between tree-ring indices, streamflow, stream base flow, and ground-water levels. These correlations and reconstructed time-series can be used to better understand the relation of hydrologic response to climatic forcings and to facilitate the simulation of streamflow and ground-water recharge for a more realistic approach to water-resource management.

[1]  Leticia Beatriz Vionnet,et al.  Groundwater capture processes under a seasonal variation in natural recharge and discharge , 1998 .

[2]  N. Mantua,et al.  The Pacific Decadal Oscillation , 2002 .

[3]  M. Hoerling,et al.  Multidecadal streamflow regimes in the interior western United States: Implications for the vulnerability of water resources , 2002 .

[4]  Charles J. Taylor,et al.  Ground-Water-Level Monitoring and the Importance of Long-Term Water-Level Data , 2001 .

[5]  G. C. Lines.  Ground-water and surface-water relations along the Mojave River, southern California , 1996 .

[6]  K. Hsü,et al.  Geophysical, archaeological, and historical evidence support a solar-output model for climate change. , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[7]  V. Markgraf.  Interhemispheric climate linkages , 2001 .

[8]  Roger S. Pulwarty,et al.  An analysis of the time scales of variability in centuries-long enso-sensitive records in the last 1000 years , 1994 .

[9]  Klaus Fraedrich,et al.  A Wavenumber-Frequency Analysis of the 500 mb Geopotential at 50°N , 1978 .

[10]  Michael E. Mann,et al.  Global-scale modes of surface temperature variability on interannual to century timescales , 1994 .

[11]  G. McCabe,et al.  Chapter 1 – Interhemispheric Effects of Interannual and Decadal ENSO-Like Climate Variations on the Americas , 2001 .

[12]  Michael Ghil,et al.  Software expedites singular‐spectrum analysis of noisy time series , 1995, Eos, Transactions American Geophysical Union.

[13]  M. Collins,et al.  Projections of future climate change , 2002 .

[14]  Peter M. Martin,et al.  Simulation of ground-water flow in the Mojave River basin, California , 2001 .

[15]  Simulation of ground-water/surface-water flow in the Santa Clara-Calleguas ground-water basin, Ventura County, California , 2003 .

[16]  L. Townley.  The response of aquifers to periodic forcing , 1995 .

[17]  M. Kashgarian,et al.  Holocene multidecadal and multicentennial droughts affecting Northern California and Nevada , 2002 .

[18]  Michael Ghil,et al.  Pacific interdecadal variability in this century's sea surface temperatures , 2000 .

[19]  A. Robertson,et al.  Interannual prediction of the Paraná River , 2001 .

[20]  Charles A. Perr.  Solar‐irradiance variations and regional precipitation fluctuations in the Western USA , 1994 .

[21]  R. Holmes,et al.  Tree-Ring Chronologies of Western North America: California, Eastern Oregon and Northern Great Basin with Procedures Used in the Chronology Development Work Including Users Manuals for Computer Programs COFECHA and ARSTAN , 1986 .

[22]  H. Lins.  Regional streamflow regimes and hydroclimatology of the United States , 1997 .

[23]  D. Meko,et al.  A tree-ring reconstuction of drought in southern California. , 1980 .

[24]  P. Gleick.  Water: the Potential Consequences of Climate Variability and Change for the Water Resources of the U , 2000 .

[25]  J. Houghton,et al.  Climate change 2001 : the scientific basis , 2001 .

[26]  R. Vautard,et al.  Singular-spectrum analysis: a toolkit for short, noisy chaotic signals , 1992 .