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Journal articles on the topic 'Uppsala geologi'

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Published: 15 September 2021

Last updated: 18 February 2022

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1

Bergstrom, Hans. "The Early Climatological Records of Uppsala." Geografiska Annaler. Series A, Physical Geography 72, no. 2 (1990): 143. http://dx.doi.org/10.2307/521109.

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2

Bergström, Hans. "The Early Climatological Records of Uppsala." Geografiska Annaler: Series A, Physical Geography 72, no. 2 (August 1990): 143–49. http://dx.doi.org/10.1080/04353676.1990.11880310.

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3

POROPAT, STEPHEN F. "Carl Wiman's sauropods: The Uppsala Museum of Evolution's collection." GFF 135, no. 1 (March 2013): 104–19. http://dx.doi.org/10.1080/11035897.2012.759268.

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4

Buffetaut, Eric. "An ankylosaurid dinosaur from the Upper Cretaceous of Shandong (China)." Geological Magazine 132, no. 6 (November 1995): 683–92. http://dx.doi.org/10.1017/s0016756800018914.

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AbstractIn 1923, H. C. T’an and O. Zdansky collected remains of an ankylosaurid dinosaur in the Late Cretaceous Wangshi Group of the Laiyang region, in eastern Shandong (China). Apart from a few caudal vertebrae, this material, which is kept at the Palaeontological Institution of the University of Uppsala (Sweden), was never described or figured. It includes a well-preserved sacrum with the attached right ilium and part of the presacral rod, caudal vertebrae, a left femur and a dermal scute. This material is referred to an ankylosaurid of the genus Pinacosaurus Gilmore, 1933, on the basis of the widely divergent ilium bearing a strong ventral ridge and of the slenderness of the femur. In the absence of cranial material, a specific attribution is difficult and the Uppsala material is referred to as Pinacosaurus cf. grangeri (P. grangeri being the only generally accepted species of Pinacosaurus). This is the first record of Pinacosaurus outside the Gobi Basin of Mongolia and northwestern China. In the Gobi Basin, Pinacosaurus has been reported only from the Djadokhta Formation or its equivalents, of supposed Campanian age, and it is suggested that at least the part of the Wangshi Group which yielded the Shandong Pinacosaurus may be of roughly the same age as the Djadokhta Formation.

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5

Uchman, Alfred, and Risto A. Kumpulainen. "Trace fossils in Quaternary glacial varved clays near Uppsala, Sweden." GFF 133, no. 3-4 (September 2011): 135–40. http://dx.doi.org/10.1080/11035897.2011.618274.

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6

Sundqvist, Hanna Sofia, Andy Baker, and Karin Holmgren. "Luminescence variations in fast‐growing stalagmites from uppsala, sweden." Geografiska Annaler: Series A, Physical Geography 87, no. 4 (December 2005): 539–48. http://dx.doi.org/10.1111/j.0435-3676.2005.00277.x.

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7

Merriam, Daniel. "Richard Arthur Reyment: Father of the International Association for Mathematical Geology." Earth Sciences History 23, no. 2 (January 1, 2004): 365–73. http://dx.doi.org/10.17704/eshi.23.2.c1520248m6452730.

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Richard Arthur Reyment was born of parents of English, Swedish, and Spanish descent in Coburg, Victoria, Australia on 4 December 1926. After obtaining his bachelor degree from Melbourne University in 1948 he spent several years with the British Colonial Service in Nigeria. While there he obtained his masters degree from Melbourne and a doctorate from the University of Stockholm (Sweden). His work in Nigeria led to the appointment as professor at the University of Ibadan. He returned to Sweden in 1965 with an appointment from the Swedish Natural Science Research Council. In 1967 he was awarded his DSc from Melbourne University and was appointed to the Chair of Historical Geology and Paleontology at the University of Uppsala (Sweden), where he remained until his retirement in 1991. His early studies on random events, multivariate morphometrics, and statistical analysis in geology and biology naturally led him into the quantitative aspects of his chosen profession, and whetted his desire to share these experiences with others with similar interests. This, he decided, could best be accomplished through an organization to promote quantitative methods and approaches, which led to his concept of the International Association for Mathematical Geology (IAMG). His efforts and enthusiasm resulted in the founding of the Association at the ill-fated International Geological Congress (IGC) in Prague in 1968. Reyment was elected the first IAMG secretary general and later the second president. The IAMG is affiliated with both the IGC and the International Statistical Institute (ISI). In recognition of his scientific accomplishments he was awarded IAMG's highest award, the William Christian Krumbein Medal, in 1979 and a special Certificate of Merit in 2002. Reyment's pioneering efforts have influenced a generation of geologists and paleontologists.

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8

Berg-Madsen, Vivianne, and Jan Ove R. Ebbestad. "The Bromell fossil collection at Uppsala University, Sweden: its history and the people behind it." GFF 135, no. 1 (March 2013): 3–17. http://dx.doi.org/10.1080/11035897.2012.759146.

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9

LUNDQVIST, JAN, and LARS-KÖNIG KÖNIGSSON. "The deglaciation of Scandinavia later than 10,000 B.P.: The 1979 Uppsala Symposium." Boreas 9, no. 4 (January 16, 2008): 209–10. http://dx.doi.org/10.1111/j.1502-3885.1980.tb00696.x.

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10

KÖNIGSSON, LARS-KÖNIG, and JAN LUNDQVIST. "The deglaciation of Scandinavia earlier than 10 000 B.P.: The 1978 Uppsala Symposium." Boreas 8, no. 2 (January 16, 2008): 77–78. http://dx.doi.org/10.1111/j.1502-3885.1979.tb00787.x.

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11

Barring, Lars, and Jan O. Mattsson. "Influence of Anomalous Years on Filtered Time Series of the Annual Temperature from Uppsala, Sweden." Geografiska Annaler. Series A, Physical Geography 74, no. 2/3 (1992): 275. http://dx.doi.org/10.2307/521304.

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12

Hern, Caroline, Ulf Nordlund, Kees van der Zwan, and Kenny Ladipo. "Forward prediction of aeolian systems using fuzzy logic, constrained by data from recent and ancient analogues." Netherlands Journal of Geosciences - Geologie en Mijnbouw 80, no. 1 (April 2001): 53–70. http://dx.doi.org/10.1017/s0016774600022162.

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AbstractAeolian sands are the main reservoir rock in some of the largest gas fields, such as the Shell-Exxon Groningen Field, operated by NAM. Although aeolian reservoirs have been studied for many years, there is still room for improvement in the predictive modeling of such reservoirs. A pilot project with this objective was initiated by SIEP B.V. in 1997, together with Heriot-Watt University in Edinburgh, UK and with Uppsala University, Sweden, to evaluate the factors influencing aeolian systems, and to formulate a forward model using ‘fuzzy logic’.The project was initiated to develop a fuzzy system for generic modeling of aeolian architectures. The key aims were to be able to predict the type, amount and distribution of major facies in generic aeolian systems and specifically to model regional-scale architecture in the sub-surface. Fuzzy rules and sets, which defined the behaviour of aeolian systems, were constructed and used to modify the pre-existing fuzzy modeling software which had been designed for shallow and deep marine systems. The modeling procedure used input data appropriate to the Rotliegend climate, and was validated by comparing the resulting models, in terms of thickness and spatial distribution of facies types, to well data from the Upper Rotliegend interval of the Lauwerszee Trough area, NE Netherlands (Figures 1 & 2).

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13

Åse, Lars‐erik. "Shorelines of the uppsala esker east‐central sweden: their use as indicators of regional differences in shore displacement." Geografiska Annaler: Series A, Physical Geography 79, no. 1-2 (April 1997): 67–81. http://dx.doi.org/10.1111/j.0435-3676.1997.00007.x.

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14

Ase, Lars-Erik. "Shorelines of the Uppsala Esker East-Central Sweden: Their Use as Indicators of Regional Differences in Shore Displacement." Geografiska Annaler, Series A: Physical Geography 79A, no. 1-2 (January 1997): 67–81. http://dx.doi.org/10.1111/1468-0459.00007.

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15

Åse, Lars-Erik, Eva Bergström, Per Syrén, Lars-Erik Ase, Eva Bergstrom, and Per Syren. "Is There a Correlation between Lake Levels and Shore Displacement? A Preliminary Investigation in the County of Uppsala, Southern Sweden." Geografiska Annaler. Series A, Physical Geography 67, no. 1/2 (1985): 151. http://dx.doi.org/10.2307/520478.

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16

Apostolov, E. M., D. Altadill, and R. Hanbaba. "Spectral energy contributions of quasi-periodic oscillations (2-35 days) to the variability of the f<sub>o</sub>F2." Annales Geophysicae 16, no. 2 (February 28, 1998): 168–75. http://dx.doi.org/10.1007/s00585-998-0168-9.

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Abstract. The relative contributions of quasi-periodic oscillations from 2 to 35 days to the variability of foF2 at middle northern latitudes between 42°N and 60°N are investigated. The foF2 hourly data for the whole solar cycle 21 (1976–1986) for four European ionospheric stations Rome (41.9°N, 12.5°E), Poitiers (46.5°N, 0.3°E), Kaliningrad (54.7°N, 20.6°E) and Uppsala (59.8°N, 17.6°E) are used for analysis. The relative contributions of different periodic bands due to planetary wave activity and solar flux variations are evaluated by integrated percent contributions of spectral energy for these bands. The observations suggest that a clearly expressed seasonal variation of percent contributions exists with maximum at summer solstice and minimum at winter solstice for all periodic bands. The contributions for summer increase when the latitude increases. The contributions are modulated by the solar cycle and simultaneously influenced by the long-term geomagnetic activity variations. The greater percentage of spectral energy between 2 to 35 days is contributed by the periodic bands related to the middle atmosphere planetary wave activity.Key words. Ionosphere · Ionosphere-atmosphere interactions · Mid-latitude ionosphere · Plasma waves and instabilities

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17

Wintoft, P. "Study of the solar wind coupling to the time difference horizontal geomagnetic field." Annales Geophysicae 23, no. 5 (July 28, 2005): 1949–57. http://dx.doi.org/10.5194/angeo-23-1949-2005.

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Abstract. The local ground geomagnetic field fluctuations (Δ B) are dominated by high frequencies and 83% of the power is located at periods of 32 min or less. By forming 10-min root-mean-square (RMS) of Δ B a major part of this variation is captured. Using measured geomagnetic induced currents (GIC), from a power grid transformer in Southern Sweden, it is shown that the 10-min standard deviation GIC may be computed from a linear model using the RMS Δ X and Δ Y at Brorfelde (BFE: 11.67° E, 55.63° N), Denmark, and Uppsala (UPS: 17.35° E, 59.90° N), Sweden, with a correlation of 0.926±0.015. From recurrent neural network models, that are driven by solar wind data, it is shown that the log RMS Δ X and Δ Y at the two locations may be predicted up to 30 min in advance with a correlation close to 0.8: 0.78±0.02 for both directions at BFE; 0.81±0.02 and 0.80±0.02 in the X- and Y-directions, respectively, at UPS. The most important inputs to the models are the 10-min averages of the solar wind magnetic field component Bz and velocity V, and the 10-min standard deviation of the proton number density σn. The average proton number density n has no influence. Keywords. Magnetospheric physics (Solar wind - magnetosphere interactions) – Geomagnetism and paleomagnetism (Rapid time variations)

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