Forskningsetiske retningslinjer for samfunnsvitenskap og humaniora

Den nasjonale forskningsetiske komité for samfunnsvitenskap og humaniora (NESH) er et uavhengig og rådgivende organ, som har ansvar for å utarbeide nasjonale forskningsetiske retningslinjer. Den første utgaven av NESHs retningslinjer ble utgitt i 1993, og de har kommet i reviderte utgaver i 1999, 2006 og 2016. For mer om NESH og retningslinjene, se vedlegg. I denne utgaven har NESH valgt å fremheve og tydeliggjøre de grunnleggende forskningsetiske normene. Formålet er å fremheve NESHs retningslinjer som en selvstendig kilde til forskningsetisk refleksjon og kontinuering diskusjon i forskerfellesskapet. NESH har også presisert hvordan forskning i økende grad er under press, og hvordan ulike aktører som oppdragsgivere, finansiører og samarbeidspartnere har medansvar for å ivareta forskningsetikken. Videre er skillet mellom etikk og juss presisert for å tydeliggjøre grenseflatene mot henholdsvis gransking av vitenskapelig uredelighet og krav om rettsgrunnlag ved behandling av personopplysninger. Høsten 2020 ble det reviderte utkastet til nasjonale retningslinjer sendt på høring. NESH mottok over 60 innspill fra forskere, forskningsinstitusjoner og andre forskningsaktører. En arbeidsgruppe bestående av Elisabeth Staksrud (leder), Ivar Kolstad (nestleder) og Vidar Enebakk (sekretariatsleder) har gått gjennom alle innspill og utarbeidet forslag, som er grundig drøftet og vedtatt av alle medlemmene i komiteen.publishedVersio

Lip Height Effects in Quadrangular Steel Containers

The reduction in the mass-loss rate as a function of lip height is investigated through 90 experiments with hydrocarbon pool fires in quadrangular containers of size 10 cm, 20 cm, and 30 cm. The results show a reduction in the mass loss rate of 30-55 percent for 7 cm initial lip height compared with pool fires with no initial lip height

Seabed morphology and sedimentary processes on high-gradient trough mouth fans offshore Troms, northern Norway

Trough mouth fans (TMF) situated at the mouths of formerly glaciated cross-shelf troughs are important paleoclimatic archives. Whereas the sedimentary processes of large, low-gradient TMFs have received considerable interest, little attention has been paid to the other end member of this landform class, i.e. TMFs with higher slope gradients. Detailed swath-bathymetric data and seismic profiles from the continental margin offshore Troms, northern Norway cover three high-gradient TMFs (the Andfjorden, Malangsdjupet and Rebbenesdjupet TMFs; slope gradients generally between 1° and 15°), as well as inter-fan areas, which include two submarine canyons (the Andøya and Senja Canyon) and the Malangsgrunnen inter-fan slope. The present-day morphologies of the Andfjorden and Malangsdjupet TMFs have evolved from sediment transport and distribution through gully-channel complexes. The Andfjorden TMF has later been affected by a large submarine landslide that remobilized much of these complexes. The Rebbenesdjupet TMF is dominated by a number of small and relatively shallow slide scars, which are inferred to be related to small-scale sediment failure of glaciomarine and/or contouritic sediments. The canyons cut into the adjacent TMFs, and turbidity currents originating on the fans widened and deepened the canyons during downslope flow. The Malangsgrunnen shelf break and inter-fan slope acted as a funnel for turbidity currents originating on the upper slope, forming a dendritic pattern of gullies. A conceptual model for the high-gradient TMFs on the Troms margin has been compiled. The main sediment input onto the TMFs has occurred during peak glacials when the Fennoscandian Ice Sheet reached the shelf edge. The overall convex fan form and progradational seismic facies show that these glacigenic deposits were repeatedly distributed onto the fan. On the Andfjorden and Malangsdjupet TMFs, gully-channel complexes occur within such deposits. It is thus inferred that the steep slope of these TMFs promoted rapid transformation from small-scale slumps and debris flows on the upper slope, into partly erosive turbidity currents. These flows continued into the deep sea, thus promoting efficient sediment by-pass across the TMFs. This model can be applied to other TMFs situated at the mouths of other glaciated cross-shelf troughs. In contrast, low-gradient TMFs are found to be dominated by glacigenic debris flow deposits. Furthermore, gully-channel complexes demonstrating the presence of erosive turbidity currents on high-gradient TMFs are rare on low-gradient TMFs. Large submarine landslides occur at both high- and low-gradient TMFs

Lip-height effect in diffusive pool fires

A freeboard, lip height, from the container rim to the fuel surface affects the mass-loss rate of a pool fire. Experiments where heptane was burned in circular containers with diameter 10, 20 and 30 cm have been conducted. The results showed a decrease of up to 36% in the mass-loss rate for lip heights larger than zero. The mass-loss rate per unit area is affected by the lip height enough for it to surpass the effect of the diameter: a large-diameter pool fire with a high lip height may have lower mass-loss rate per unit area than a pool fire with smaller diameter and lower lip height. An analysis of the energy distribution for one experiment, showed that 35% of the received energy was lost to the surroundings; 30% was stored, and 35% was spent on evaporating fuel

The marine-based NW Fennoscandian ice sheet: glacial and deglacial dynamics as reconstructed from submarine landforms

The configuration of the marine-based NW Fennoscandian ice sheet during the Last Glacial Maximum (LGM) and deglaciation is reconstructed using detailed swath bathymetry and high-resolution seismic data. The investigated area covers about 10,000 km2 of the continental shelf off Troms, northern Norway. Large scale morphology is characterized by cross-shelf troughs, coast-parallel troughs and banks. Based on mega-scale glacial lineations (MSGL), lateral and shear zone moraines and grounding zone systems, the extent and dynamics of the ice sheet during the LGM are deduced. MSGL indicate fast-flowing ice streams in the cross-shelf troughs, while the glacial morphology on the banks indicates more sluggish ice here. The marine-based part of the Fennoscandian ice sheet was sourced from ice domes in the east via fjord and valley systems inshore. Using a balance flux approach, we estimate palaeo-ice stream velocities during the LGM to be approximately 350 m/year. Three deglaciation events have been reconstructed: i) During the Torsken-1 event the ice sheet halted or readvanced to form groundings zone wedges (GZW) and the Torsken moraine, ii) Several still-stands or readvances characterized the ice behaviour on the shallower banks during the Torsken-2 event, iii) During the Flesen event, prominent end moraines in the inner parts of the troughs and banks were deposited. The locations of the end moraines and GZW in the troughs indicate that the retreat of marine-based ice streams in areas of reverse bed slope was episodic, probably mainly due to the variation in widths of the cross-shelf troughs