Geomorphology

 선상지 or Pediment

(https://pubs.usgs.gov/of/2004/1007/fans.html)

선상지 곡부

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Advection : Advection is a lateral or horizontal transfer of mass, heat, or other property. Accordingly, winds that blow across Earth's surface represent advectional movements of air. Advection also takes place in the ocean in the form of currents.

Figure 1. High‐relief, tapered topography featuring advection‐parallel interfluves in regions of gradually declining median Ksn in the direction of advection
shown above proposed décollement geometries (as shown in McQuarrie et al., 2008; Whipple et al., 2016; Yue et al., 2005) using ASTER digital elevation
models (~30‐m resolution; U.S./Japan ASTER Science Team, 2000), Ksn maps of fluvial channels and swath profiles across the Beni Escarpment in the central
Bolivian Andes (a, AA′), Central Nepalese Himalaya (b, BB′), and the Peikang River region of Taiwan (c, CC′). Reference concavity is θref = 0.45.


Figure 2. Simplified relations between fault geometry (b) and the development
of type 1 (asymmetric drainage divide and steady state reached) and
type 2 (runaway fluvial channel profile without reaching steady state) endmember
topographic responses (a) following the stream power relation in
equations (3) and (4). v0: convergence rate; vh: horizontal advection component;
vu: rock uplift component; and α: ramp angle.

Reference  
-2019, Eizenhöfer et al., Landscape Response to Lateral Advection in Convergent
Orogens Over Geologic Time Scales
-https://www.encyclopedia.com/earth-and-environment/atmosphere-and-weather/weather-and-climate-terms-and-concepts/advection-earth-sciences


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