Institution
University of Lapland
Education•Rovaniemi, Finland•
About: University of Lapland is a education organization based out in Rovaniemi, Finland. It is known for research contribution in the topics: Arctic & Indigenous. The organization has 665 authors who have published 1870 publications receiving 39129 citations. The organization is also known as: University of Rovaniemi & Lapin yliopisto.
Topics: Arctic, Indigenous, Climate change, Tundra, Tourism
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the authors present evidence from a variety of tundra cover types under human disturbance at three sites in the Canadian High Arctic to indicate that higher plants may be insufficient to differentiate among the apparently distinct geobotanical signatures of discrete surface disturbances.
Abstract: . Evidence is presented from a variety of tundra cover types under human disturbance at three sites in the Canadian High Arctic to indicate that higher plants may be insufficient to differentiate among the apparently distinct geobotanical signatures of discrete surface disturbances. Unlike in the Low Arctic, woody growth forms are often minimal or lacking on heavily disturbed ground and several prominent species of ruderal herbs and especially graminoids occur on a wide variety of substrates. Therefore, cryptogams, particularly bryophytes, are important indicator taxa. Presence-absence data on bryophytes from minerotrophic and oligotrophic soils, combined with vascular cover-abundance data, enhanced detection of patch-level floristic gradients within and among disjunct coastal lowlands. However, the pool of ruderal bryophytes is limited, and ultimately factors such as frequency and abundance should be considered.
24 citations
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TL;DR: In this paper, snow pits sampled during two consecutive years (2001 and 2002) at the summit of Lomonosov-fonna ice cap in central Spitsbergen, Svalbard, showed that ion concentrations were spatially homogeneous.
Abstract: Snow pits sampled during two consecutive years (2001, 2002) at the summit of Lomonosov- fonna ice cap in central Spitsbergen, Svalbard, showed that ion concentrations were spatially homogeneous. The snowpack on Lomonosovfonna shows no evidence of aerosol deposition from Arctic haze, in contrast to Holtedahlfonna (a glacier at a similar altitude in northern Spitsbergen) where there is a clear signature. In common with many other ice caps in the Arctic, Lomonosovfonna experiences periodic melting, and the deepest of the snow pits contained a record of one exceptionally warm (2001) and one long summer (2000). The most easily eluted species are nitrate and the divalent ions. Very low ion concentrations and high values of a melt indicator log ((Na + )/(Mg 2+ )) were a result of either deep percolation or runoff of ions during melting. Comparing the snow-pit record with the ion record of more than 800 years from an ice core drilled on Lomonosovfonna in 1997 reveals some layers with similar composition to those that suffered significant melting in the snowpack: a few years in the 20th century and around AD 1750, and all of the core from before AD 1200 show unusually heavy melting.
24 citations
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05 Jan 2016TL;DR: The salient findings from the concept evaluation show that active young people find tracking sports data motivating and interesting, and call for a unified service that combines different wellness-related aspects of life.
Abstract: Collecting a digital footprint of data from one's everyday activities is becoming an information source for preventive health care. Wearable sensor technologies combined with mobile phone applications offer an interesting way to collect and monitor personal activity data for personal use, in addition to providing information for wellness and health care professionals. In this paper we present our service design approach for designing a mobile MyData Wellness concept that was developed for young athletes. The concept aims to combine different possibilities of mobile technologies to create a tool that can provide versatile support for wellness. The salient findings from the concept evaluation show that active young people find tracking sports data motivating and interesting, and call for a unified service that combines different wellness-related aspects of life.
24 citations
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TL;DR: In this paper, the authors used the full-Stokes Elmer/ice model to simulate the Wordie Ice Shelf and Fleming Glacier system in the southern Antarctic Peninsula and proposed a multi-cycle spin-up scheme to reduce the influence of the assumed initial temperature field on the final inversion.
Abstract: . Many glaciers in the Antarctic
Peninsula are now rapidly losing mass. Understanding of the dynamics of these
fast-flowing glaciers, and their potential future behaviour, can be improved
through ice sheet modelling studies. Inverse methods are commonly used in ice
sheet models to infer the spatial distribution of a basal friction
coefficient, which has a large effect on the basal velocity and ice
deformation. Here we use the full-Stokes Elmer/Ice model to simulate the
Wordie Ice Shelf–Fleming Glacier system in the southern Antarctic Peninsula.
With an inverse method, we infer the pattern of the basal friction
coefficient from surface velocities observed in 2008. We propose a
multi-cycle spin-up scheme to reduce the influence of the assumed initial
englacial temperature field on the final inversion. This is particularly
important for glaciers like the Fleming Glacier, which have areas of strongly
temperature-dependent deformational flow in the fast-flowing regions.
Sensitivity tests using various bed elevation datasets, ice front positions
and boundary conditions demonstrate the importance of high-accuracy ice
thickness/bed geometry data and precise location of the ice front boundary.
24 citations
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University of Helsinki1, Swedish University of Agricultural Sciences2, University of Guelph3, Finnish Environment Institute4, Martin Luther University of Halle-Wittenberg5, University of Oulu6, American Museum of Natural History7, University of Eastern Finland8, Swedish Museum of Natural History9, Stockholm University10, University of Jyväskylä11, Norwegian University of Science and Technology12, University of Turku13, University of Lapland14
TL;DR: The creation of a comprehensive reference library of DNA barcodes for the arthropods of an entire country (Finland) is reported, a probabilistic taxonomic assignment tool, FinPROTAX, is trained, and a new identification tool is delivered based on this resource.
Abstract: To associate specimens identified by molecular characters to other biological knowledge, we need reference sequences annotated by Linnaean taxonomy. In this study, we (1) report the creation of a comprehensive reference library of DNA barcodes for the arthropods of an entire country (Finland), (2) publish this library, and (3) deliver a new identification tool for insects and spiders, as based on this resource. The reference library contains mtDNA COI barcodes for 11,275 (43%) of 26,437 arthropod species known from Finland, including 10,811 (45%) of 23,956 insect species. To quantify the improvement in identification accuracy enabled by the current reference library, we ran 1000 Finnish insect and spider species through the Barcode of Life Data system (BOLD) identification engine. Of these, 91% were correctly assigned to a unique species when compared to the new reference library alone, 85% were correctly identified when compared to BOLD with the new material included, and 75% with the new material excluded. To capitalize on this resource, we used the new reference material to train a probabilistic taxonomic assignment tool, FinPROTAX, scoring high success. For the full-length barcode region, the accuracy of taxonomic assignments at the level of classes, orders, families, subfamilies, tribes, genera, and species reached 99.9%, 99.9%, 99.8%, 99.7%, 99.4%, 96.8%, and 88.5%, respectively. The FinBOL arthropod reference library and FinPROTAX are available through the Finnish Biodiversity Information Facility (www.laji.fi) at https://laji.fi/en/theme/protax. Overall, the FinBOL investment represents a massive capacity-transfer from the taxonomic community of Finland to all sectors of society.
24 citations
Authors
Showing all 710 results
Name | H-index | Papers | Citations |
---|---|---|---|
Hong Li | 103 | 779 | 42675 |
John C. Moore | 76 | 389 | 25542 |
Jeffrey M. Welker | 57 | 179 | 18135 |
Bruce C. Forbes | 43 | 130 | 7984 |
Mats A. Granskog | 41 | 141 | 5023 |
Manfred A. Lange | 38 | 92 | 4256 |
Liisa Tyrväinen | 37 | 112 | 6649 |
Samuli Helama | 35 | 156 | 4008 |
Aslak Grinsted | 34 | 89 | 9653 |
Jukka Jokimäki | 31 | 93 | 4175 |
Sari Stark | 29 | 58 | 2559 |
Elina Lahelma | 27 | 86 | 2217 |
Jonna Häkkilä | 25 | 97 | 2185 |
Rupert Gladstone | 23 | 51 | 2320 |
Justus J. Randolph | 23 | 66 | 2160 |