Elevational ground/air thermal gradients in the Swiss inner Alpine Valais

Rist, Armin; Roth, Lotti; Veit, Heinz (2020). Elevational ground/air thermal gradients in the Swiss inner Alpine Valais. Arctic, Antarctic, and Alpine Research, 52(1), pp. 341-360. Taylor & Francis 10.1080/15230430.2020.1742022

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The dependence of air temperature on elevation (i.e., its elevational gradient) in the mountains is well known. However, the elevational gradient of near-surface ground temperatures and derived thermal parameters is much less understood. In this study, we investigated how these parameters depend on elevation by one-year temperature measurements along a transect in the Valais Alps (Switzerland) between 700 and 2,600 m a.s.l. In addition, we studied the effect of differences in slope aspect (north/south) and land cover (open field/forest). Air temperatures were measured as a reference. The results show that the ground thermal regime distinctly differs from that of the air. These differences could mainly be attributed to radiation, snow cover, and ground heat transfer. Our findings have far-reaching implications for ecosystems, agriculture, and forestry in mountains because a large portion of the living biomass is underground and thus affected by ground thermal processes.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geography
08 Faculty of Science > Institute of Geography > Physical Geography > Unit Paleo-Geoecology
08 Faculty of Science > Institute of Geography > Physical Geography

UniBE Contributor:

Rist, Armin and Veit, Heinz

Subjects:

900 History > 910 Geography & travel
500 Science
500 Science > 550 Earth sciences & geology

ISSN:

1523-0430

Publisher:

Taylor & Francis

Language:

English

Submitter:

Lukas Munz

Date Deposited:

14 Jul 2020 14:31

Last Modified:

28 Jul 2020 18:01

Publisher DOI:

10.1080/15230430.2020.1742022

Uncontrolled Keywords:

Ground thermal regime, elevational gradient, slope aspect, land cover, mountains

BORIS DOI:

10.7892/boris.145178

URI:

https://boris.unibe.ch/id/eprint/145178

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