Field Research:

(left) Measuring hydraulic conductivity in infiltration trench with a Guelph permeameter on Malinche volcano in Mexico. Photo by  Carlos E. Ramos-Scharrón of University of Texas at Austin. (right) One of many cylindrical rain gauges stationed across the state of Tlaxcala, Mexico. Mexico's Sierra Nevada (Popocatépel & Iztaccihuatl) orographic effect in background.

(below) Designing experimental terrace plot in Ahuashuatepec, Mexico. (right) Later, opening the data recorder for a network of soil moisture sensors positioned across two terrace plots.

(above) Looking for an appropriate location for monitoring soil erosion in Xalostoc, Mexico. (below) Recording observations near the convergence of two weather systems in Puebla, Mexico at ~14,000 feet a.s.l.

(right) About the enter the bishopric archives in Trinidad, Cuba after a long day of fieldwork.

(above) Measuring flow of the Zahuapan River near Apizaco, Mexico. (below) Later, sampling suspended sediment.

(above) Surveying colonial aqueduct with William E. Doolittle of the University of Texas at Austin near Matlala, Mexico.