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@ARTICLE{CaviedesVoullieme:894101,
      author       = {Caviedes Voullieme, Daniel and Ahmadinia, Ebrahim and Hinz,
                      Christoph},
      title        = {{I}nteractions of {M}icrotopography, {S}lope and
                      {I}nfiltration {C}ause {C}omplex {R}ainfall‐{R}unoff
                      {B}ehavior at the {H}illslope {S}cale for {S}ingle
                      {R}ainfall {E}vents},
      journal      = {Water resources research},
      volume       = {57},
      number       = {7},
      issn         = {1944-7973},
      address      = {New York},
      publisher    = {Wiley},
      reportid     = {FZJ-2021-03040},
      pages        = {e2020WR028127},
      year         = {2021},
      abstract     = {Microtopography (MT) can govern runoff dynamics as a net
                      result of local heterogeneities in the flow paths and
                      ponding. This in turn controls the development of the
                      surface water layer that connects and flows downslope. It is
                      therefore important to understand which microtopographic
                      features affect runoff generation dynamics and its
                      macroscopic—hillslope scale—hydrological signatures
                      (e.g., hydrographs, runoff and infiltration volumes). In
                      this study, we numerically solve 2D overland flow from a
                      single rain pulse on 1,460 idealized hillslopes with
                      different slopes and sinusoidal microtopographies and
                      different infiltration capacities. We assess hydrodynamic
                      distributions, hydrographs and hydrological indices to
                      assess the effects of MT and infiltration on the (local)
                      hydrodynamic and (larger scale) hydrologic responses in
                      terms of surface runoff regimes. The results show that MT
                      enhances infiltration and that infiltration and runoff
                      depend in a strong non-linear way on slope and the
                      properties of MT. Three regimes of influence of MT were
                      identified: one in which MT plays a negligible role but
                      there is a high sensitivity to the infiltration capacity
                      curve, a second regime in which hydrological partitioning is
                      highly sensitive to MT and the infiltration capacity curve,
                      and a third regime in which MT increases infiltration, but
                      the response is insensitive to particular features, and more
                      affected by the average slopes. The regimes are the product
                      of the interplay between small (MT) and large scale (slope)
                      properties. Furthermore, the results suggest that
                      hydrological signatures can be interpreted and explained by
                      the spatiotemporal variation of surface connectivity.},
      cin          = {IBG-3 / JSC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118 / I:(DE-Juel1)JSC-20090406},
      pnm          = {2152 - Water resources and the environment (POF4-215) /
                      5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511) / 2173 -
                      Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2152 / G:(DE-HGF)POF4-5111 /
                      G:(DE-HGF)POF4-2173},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000680092200024},
      doi          = {10.1029/2020WR028127},
      url          = {https://juser.fz-juelich.de/record/894101},
}