Media type: E-Article Title: The geomorphic cell: a basis for studying connectivity Contributor: Poeppl, Ronald E.; Parsons, Anthony J. Published: Wiley, 2018 Published in: Earth Surface Processes and Landforms, 43 (2018) 5, Seite 1155-1159 Language: English DOI: 10.1002/esp.4300 ISSN: 0197-9337; 1096-9837 Keywords: Earth and Planetary Sciences (miscellaneous) ; Earth-Surface Processes ; Geography, Planning and Development Origination: Footnote: Description: <jats:title>Abstract</jats:title><jats:p>Any attempt to measure connectivity within a system requires a set of entities to be defined that permit the connectivity among them to be quantified. Here we propose the geomorphic cell as such an entity. We provide a means to identify these cells, define a terminology for describing cell state, and identify the pathways of connections (connecteins) to and from cells. We conceptualize the geomorphic cell as being a three‐dimensional body of the geomorphosphere, which is delimited from neighbouring cells and neighbouring spheres by different types of boundary. Vertically, the upper boundary of a geomorphic cell is defined by the atmosphere, while the lower boundary is generally formed by the bedrock layer of the lithosphere. Laterally, geomorphic cells are delimited from neighbouring cells with a change in environmental characteristics that determine hydro‐geomorphic boundary conditions (e.g. geology, soils, topography and/or vegetation). Copyright © 2017 John Wiley & Sons, Ltd.</jats:p>