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Fig. 1. (A) Location of the Morgan Creek watershed on the Delmarva peninsula. Also shown are the locations of the three weather stations in the Chesapeake Bay region that were used to fill in data or to provide observations back to October 1994. (B) Land use for growing season in 2004 determined from field surveys. The soybean field surrounding the intensive study site containing the flow-path wells is located near the outlet. The soils and instruments in the cross-section below X-X' are presented in Fig. 1D. (C) Unsaturated-zone thickness computed as the difference between the land surface elevation and the steady-state potentiometric head simulated with a ground-water model (MODFLOW). (D) Cross-section of Maryland intensive study site showing unsaturated-zone thickness, and the location of lysimeters and peizometers. Volumetric soil moisture was measured with time-domain reflectometers (TDRs) collocated with the pan lysimeters at M21.
