Research Article

Evolution of Hydrological Drought in Human Disturbed Areas: A Case Study in the Laohahe Catchment, Northern China

Figure 3

Temporal evolutions of identified (a) meteorological drought (derived from precipitation) and (b) hydrological drought (derived from runoff), and the scatterplots of drought duration and deficit volume for (c) meteorological and (d) hydrological droughts.
(a) Meteorological drought
(b) Hydrological drought
(c) Meteorological drought
(d) Hydrological drought