The 3rd AGU-SEG Hydrogeophysics Workshop: Imaging the Critical Zone July 24-27, 2017 | Stanford, CA http://workshops.agu.org/hydrogeophysics/abstracts/ ABSTRACT DEADLINE: 23 February 2017, midnight U.S. Eastern Standard Time The Critical Zone (CZ) is a dynamic region where rock, soil, water, air, and living biota interact to shape Earth鈥檚 surface. The Critical Zone...