University of Lapland

About: University of Lapland is a education organization based out in Rovaniemi, Finland. It is known for research contribution in the topics: Arctic & Context (language use). The organization has 665 authors who have published 1870 publications receiving 39129 citations. The organization is also known as: University of Rovaniemi & Lapin yliopisto.

Response to marine cloud brightening in a multi-model ensemble

Abstract: . Here we show results from Earth system model simulations from the marine cloud brightening experiment G4cdnc of the Geoengineering Model Intercomparison Project (GeoMIP). The nine contributing models prescribe a 50 % increase in the cloud droplet number concentration (CDNC) of low clouds over the global oceans in an experiment dubbed G4cdnc, with the purpose of counteracting the radiative forcing due to anthropogenic greenhouse gases under the RCP4.5 scenario. The model ensemble median effective radiative forcing (ERF) amounts to −1.9 W m−2, with a substantial inter-model spread of −0.6 to −2.5 W m−2. The large spread is partly related to the considerable differences in clouds and their representation between the models, with an underestimation of low clouds in several of the models. All models predict a statistically significant temperature decrease with a median of (for years 2020–2069) −0.96 [−0.17 to −1.21] K relative to the RCP4.5 scenario, with particularly strong cooling over low-latitude continents. Globally averaged there is a weak but significant precipitation decrease of −2.35 [−0.57 to −2.96] % due to a colder climate, but at low latitudes there is a 1.19 % increase over land. This increase is part of a circulation change where a strong negative top-of-atmosphere (TOA) shortwave forcing over subtropical oceans, caused by increased albedo associated with the increasing CDNC, is compensated for by rising motion and positive TOA longwave signals over adjacent land regions.

Separation of melting and environmental signals in an ice core with seasonal melt

Abstract: We examine the impact of melt water percolation on the soluble ion chemical record from the Lomonosovfonna ice core. Principle component analysis shows that melting produces only simple changes bet ...

Acting in Nature: Service Events and Agency in Wilderness Guiding

Abstract: This article examines one of the key occupations in nature tourism: wilderness guiding. It investigates what it means for the work of guides when nature is simultaneously a product to be sold, an operational environment and a partaker in the tour. The concept of ‘collective’ by Bruno Latour is used as a methodological guideline in investigating guiding as work. By examining a guide’s work as a collective, we can see what kinds of demands this kind of ‘hybrid-work’ requires, how nature is intertwined with customer service practices, and how technology becomes a part of guiding. It is demonstrated that nature and technology play a greater role in shaping tourism practices and performances of employees than previously thought. Nature is an essential part of a guide’s performance; it is an ‘actor’ which participates in constructing the service event of nature tourism.

Protection of the Arctic marine environment

Abstract: The Arctic Ocean is the smallest and shallowest of Earth’s oceans, covering an area of some 14 million square kilometres, of which 2.8 million square kilometres is beyond areas of national jurisdiction – as part of the high seas.