Are Temperature and Precipitation Extremes Increasing over the U.S. High Plains

AbstractLarge-scale environmental, social, and economic impacts of recent weather and climate extremes are raising questions about whether the frequency and intensity of these extremes have been increasing. Here, the authors evaluate trends in climate extremes during the past half century using the U.S. High Plains as a case study. A total of eight different extreme indices and the standardized precipitation index (SPI) were evaluated using daily maximum and minimum temperature and precipitation data from 207 stations and 0.25° gridded data. The 1958–2010 time period was selected to exclude the 1950s and 2011 droughts. Results show general consistency between the station data and gridded data. The annual extreme temperature range (ETR) decreased significantly (p < 0.05) in ~54% of the High Plains, with a spatial mean rate of −0.7°C decade−1. Decreases in ETR result primarily from increases in annual lowest temperature in ~63% of the stations at a mean rate of ~0.9°C decade−1, whereas increases in annual h...

[1]  Mark New,et al.  Surface air temperature and its changes over the past 150 years , 1999 .

[2]  D. Easterling,et al.  Observed variability and trends in extreme climate events: A brief review , 2000 .

[3]  R. Allen,et al.  Trends in Twentieth-Century Temperature Extremes across the United States , 2002 .

[4]  Vijay P. Singh,et al.  Wet and dry spell analysis of Global Climate Model-generated precipitation using power laws and wavelet transforms , 2011 .

[5]  M. Rusticucci,et al.  Observed Trends in Indices of Daily Temperature Extremes in South America 1960–2000 , 2005 .

[6]  T. Karl,et al.  Global climate change impacts in the United States. , 2009 .

[7]  D. Camuffo,et al.  Trends of Extreme Temperatures in Europe and China Based on Daily Observations , 2002 .

[8]  M. Haylock,et al.  Observed coherent changes in climatic extremes during the second half of the twentieth century , 2002 .

[9]  David M. H. Sexton,et al.  Comparison of Modeled and Observed Trends in Indices of Daily Climate Extremes , 2003 .

[10]  Water-level changes in the High Plains Aquifer--predevelopment to 1994 , 1996 .

[11]  Wen-jie Dong,et al.  Impact of land surface forcings on mean and extreme temperature in eastern China , 2010 .

[12]  V. L. McGuire.  Water-Level Changes in the High Plains Aquifer, Predevelopment to 2007, 2005-06, and 2006-07 , 2009 .

[13]  J. V. Revadekar,et al.  Global observed changes in daily climate extremes of temperature and precipitation , 2006 .

[14]  M. J. MANTONa,et al.  TRENDS IN EXTREME DAILY RAINFALL AND TEMPERATURE IN SOUTHEAST ASIA AND THE SOUTH PACIFIC : 1961 – 1998 , 2001 .

[15]  Song Yang,et al.  Regional summer precipitation events in Asia and their changes in the past decades , 2008 .

[16]  Ellen J. Cooter,et al.  Recent frost date trends in the north‐eastern USA , 1995 .

[17]  K. Trenberth,et al.  The changing character of precipitation , 2003 .

[18]  G. Meehl,et al.  Relative increase of record high maximum temperatures compared to record low minimum temperatures in the U.S. , 2009 .

[19]  Scaling Characteristics of Precipitation Data over Texas , 2011 .

[20]  L. Vincent,et al.  Changes in Daily and Extreme Temperature and Precipitation Indices for Canada over the Twentieth Century , 2006, Data, Models and Analysis.

[21]  Thomas C. Peterson,et al.  Maximum and Minimum Temperature Trends for the Globe , 1997 .

[22]  A. Sterl,et al.  Global changes in indices describing moderate temperature extremes from the daily output of a climate model , 2011 .

[23]  Beth C. Reinke,et al.  The July 1995 Heat Wave in the Midwest: A Climatic Perspective and Critical Weather Factors , 1996 .

[24]  T. McKee,et al.  THE RELATIONSHIP OF DROUGHT FREQUENCY AND DURATION TO TIME SCALES , 1993 .

[25]  N. Guttman.  ACCEPTING THE STANDARDIZED PRECIPITATION INDEX: A CALCULATION ALGORITHM 1 , 1999 .

[26]  G. Jumaux,et al.  Observed trends in indices of daily and extreme temperature and precipitation for the countries of the western Indian Ocean, 1961–2008 , 2011 .

[27]  G. Meehl,et al.  An intercomparison of model-simulated historical and future changes in extreme events , 2007 .

[28]  Vijay P. Singh,et al.  Seasonal streamflow extremes in Texas river basins: Uncertainty, trends, and teleconnections , 2011 .

[29]  S. Pryor,et al.  How spatially coherent and statistically robust are temporal changes in extreme precipitation in the contiguous USA? , 2009 .

[30]  R. Reedy,et al.  Groundwater depletion and sustainability of irrigation in the US High Plains and Central Valley , 2012, Proceedings of the National Academy of Sciences.

[31]  A. Mhanda,et al.  Changes in temperature and precipitation extremes in western central Africa, Guinea Conakry, and Zimbabwe, 1955–2006 , 2009 .

[32]  M. Simpson.  Global Climate Change Impacts in the United States , 2011 .

[33]  David R. Easterling,et al.  Long-Term Trends in Extreme Precipitation Events over the Conterminous United States and Canada , 1999 .

[34]  A. M. G. Klein,et al.  Trends in Indices of Daily Temperature and Precipitation Extremes in Europe, 1946-99 , 2003 .

[35]  Steven M. Quiring,et al.  Developing Objective Operational Definitions for Monitoring Drought , 2009 .