Data

Geophysical methods were used to monitor infiltration during a pulse flow release of water in the Colorado River delta in Mar-May 2014. Electromagnetic-induction methods were used at 14 transects in the limitrophe reach of the River between the U.S. and Mexico, and further south in Mexico. These data are sensitive to variation in soil texture and water content. The repeat direct-current

Relative-gravity data and absolute-gravity data were collected in the Sierra Vista Subwatershed, Upper San Pedro Basin, Arizona, in May-June 2014 and 2015. Data from 2014 and a description of the survey network were published in USGS Open File Report 2015-1086. Data presented in the shapefile here are: 1) Network-adjusted values from 2015, 2) Gravity change from 2014 to 2015, and 3)...