• Angel WE, Urzen ML, Del Greco SA, Bodosky MW. 2003. Automated validation for summary of the day temperature data (TempVal). 83rd AMS Annual Meeting, combined preprints CD-ROM, 9–13 February 2003, Long Beach CA, 19th Conference IIPS [International Conference on Interactive Information and Processing Systems for Meteorology, Oceanography, and Hydrology], American Meteorological Society: Boston, Mass, File 15.3, 4 pp. (February 2003).
  • Easterling DR, Peterson TC. 1995. A new method for detecting and adjusting for undocumented discontinuities in climatological time series. International Journal of Climatology 15: 369377.
  • Hubbard KG, Goddard S, Sorensen WD, Wells N, Osugi TT. 2004. Performance of quality assurance procedures for an applied climate information system. Journal of Atmospheric and Oceanic Technology in press.
  • Karl TR, Williams CN Jr, Young PJ, Wendland WM. 1986. A model to estimate the time of observation bias associated with monthly mean maximum, minimum and mean temperatures for the United States. Journal of Climate and Applied Meteorology 25: 145160.
  • Menne MJ, Williams CN Jr. 2005. Detection of undocumented change points: On the use of multiple test statistics and composite reference series. Journal of Climate in press.
  • National Climatic Data Center. 2002. Monthly normals of temp, precip, HDD, & CDD, 1971–2000 [i.e., Monthly station normals of temperature, precipitation, and heating and cooling degree days (old title)] (Climatography of the US # [i.e., no.] 81 [online], ( Documentation, Monthly station normals of temperature, precipitation, and degree days, and precipitation probabilities and quintiles, 1971–2000, TD9641C, (, 21.
  • National Climatic Data Center. 2003. Cooperative summary of the day [online], (, Documentation, Cooperative summary of the day(DSI[i.e., old TD series]-3200), 18 pp, (, 18.
  • National Weather Service. 1989. NWS Observing Handbook No. 2, Cooperative Station Observations 1st Edition, Government Printing Office; 83.
  • Peterson TC, Easterling DR. 1994. Creation of homogeneous composite climatological reference series. International Journal of Climatology 14: 671679.
  • Quayle RG, Easterling DR, Karl TR, Hughes PY. 1991. Effects of recent thermometer changes in the cooperative station network. Bulletin of American Meteorological Society 72: 17181723.
  • Vose RS, Menne MJ. 2004. A method to determine station density requirements for climate observing networks. Journal of Climate 17: 29612970.
  • World Meteorological Organization. 1989. Calculation of Monthly and Annual 30-year Standard Normals, WCDP-No. 10, WMO-TD/No. 341, World Meteorological Organization: Geneva.