Reference
Wright, E., Long, A., Comrie, A. C., Leavitt, S., Cavazos, T., & Eastoe, C. (2001). North American Monsoonal Moisture Sources Revealed Using Temperature, Precipitation, and Precipitation Stable Isotope Time Series. Geophysical Research Letters, 28(5), 787-790. https://doi.org/10.1029/2000GL012094