TY - JOUR A1 - Crowley, T. J. A1 - Unterman, M. B. T1 - Technical details concerning development of a 1200 yr proxy index for global volcanism JO - Earth Syst. Sci. Data J1 - ESSD VL - 5 IS - 1 SP - 187 EP - 197 Y1 - 2013/05/23 PB - Copernicus Publications SN - 1866-3516 UR - https://essd.copernicus.org/articles/5/187/2013/ L1 - https://essd.copernicus.org/articles/5/187/2013/essd-5-187-2013.pdf DO - 10.5194/essd-5-187-2013 ER -