Some formulae concerning the transverse mercator projection     

G. A. Rune 《Journal of Geodesy》1954,28(4):309-317

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Imaging of offset VSP data with an elastic iterative migration scheme     

Rune Mittet  Ketil Hokstad  Jan Helgesen  Guy Canadas 《Geophysical Prospecting》1997,45(2):247-267

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A Simulation-Based Approach For Designing Effective Field-Sampling Programs To Evaluate Contamination Risk Of Groundwater Supplies     

Rune Nordqvist  Clifford I. Voss 《Hydrogeology Journal》1996,4(3):23-39

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Bait defence behaviour of wolffish and its impact on long-line catch rates     

Godo  Olav Rune; Huse  Irene; Michalsen  Kathrine 《ICES Journal of Marine Science》1997,54(2):273-275

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The contribution of microzooplankton to the diet of mesozooplankton in an upwelling filament off the north west coast of Spain     

Sonia D. Batten  Elaine S. Fileman  Elisabeth Halvorsen 《Progress in Oceanography》2001,51(2-4)

Incubation experiments were carried out daily during a Lagrangian experiment within an upwelled filament off the Galician coast to determine the importance of microzooplankton in the diet of calanoid copepods. Despite low chlorophyll concentrations the microzooplankton formed the minor component of the diet of the copepod community (7 to 15% of carbon ingested through autotrophic and heterotrophic prey). Ingestion of ciliates was greater than that of heterotrophic dinoflagellates, which reflected a higher abundance of ciliates in the water column. Heterotrophic nanoflagellates appeared also to be consumed by the copepods, although the very small size fraction (2–5μm) was probably not grazed by the larger copepods of Calanus spp. Grazing pressure by the copepods enumerated in the net samples was not sufficient to impact significantly the microzooplankton populations (2 to 51% of daily microzooplankton production was removed). Allometric relationships of grazing on microzooplankton for a range of numerically dominant copepod species are developed from the experimental results. The grazing pressure of the whole copepod community is estimated from these relationships. By considering the total mesozooplankton community we suggest that microzooplankton growth was probably restricted by metazoan grazers.  相似文献   

MODIS-NDVI-based mapping of the length of the growing season in northern Fennoscandia     

Stein Rune Karlsen  Anne Tolvanen  Eero Kubin  Jarmo Poikolainen  Kjell Arild Høgda  Bernt Johansen  Fiona S. Danks  Paul Aspholm  Frans Emil Wielgolaski  Olga Makarova 《International Journal of Applied Earth Observation and Geoinformation》2008

Northern Fennoscandia is an ecologically heterogeneous region in the arctic/alpine-boreal transition area. Phenology data on birch from 13 stations and 16-day MODIS-NDVI composite satellite data with 250 m resolution for the period 2000 to 2006 were used to map the growing season. A new combined pixel-specific NDVI threshold and decision rule-based mapping method was developed to determine the onset and end of the growing season. A moderately high correlation was found between NDVI data and birch phenology data. The earliest onset of the growing season is found in the narrow strip of lowland between the mountains and the sea along the coast of northern Norway. The onset follows a clear gradient from lowland to mountain corresponding to the decreasing temperature gradient. In autumn, the yellowing of the vegetation shows a more heterogeneous pattern. The length of the growing season is between 100 and 130 days in 55% of the study area.  相似文献   

Report on Kukkam?ki's simplified method for an aproximate comprehensive adjustment of contiguous level networks     

G. A. Rune 《Journal of Geodesy》1950,24(4):445-447

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Report on levelling and moon-sun diurnal oscillation of the vertical     

G. A. Rune 《Journal of Geodesy》1950,24(4):448-449

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On Bowie's method of triangulation adjustment     

G. A. Rune 《Journal of Geodesy》1948,22(1):55-63

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The Paleo Heat Flow Contents in Vitrinite Reflectance Observations     

Magnus Wangen  Torbj?rn Throndsen  Gotskalk Halvorsen 《Mathematical Geology》2007,39(5):491-511

The heat flow content in vitrinite reflectance (VR) observations is studied based on a simple model of burial at a constant rate. The model is made dimensionless, and it has just one parameter except for the paleo heat flow. The question of existence and uniqueness of a solution is studied, and there exist in general no paleo heat flow that will reproduce a given VR-depth curve. But a solution is unique if it exists. A computed VR-depth function is shown to be smooth, even for piecewise constant heat flow histories. The paleo heat flow can be obtained from a VR-depth function after two times with derivations. It is also shown how the present day thermal gradient can be obtained by derivation of a VR-depth representation. The one-parameter model allows for approximate expressions for the optimal paleo heat flow as a step function. The results obtained from the one-parameter model is also compared with similar results from a real case study from the North Sea using a state-of-the-art basin simulator.  相似文献