Dark matter annihilation in substructures revised     

Lidia Pieri  Gianfranco Bertone  Enzo Branchini 《Monthly notices of the Royal Astronomical Society》2008,384(4):1627-1637

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Toxicity studies of elemental sulfur in marine sediments     

Monika Cieszynska-Semenowicz  Justyna Rogowska  Wojciech Ratajczyk  Joanna Ratajczyk  Lidia Wolska 《国际泥沙研究》2018,33(2):191-197

Elemental sulfur(ES) is a component essential for proper development of animals, but it can be toxic for aquatic organisms. The objectives of the study reported here included determination of ES concentrations in sediment collected in the area of the Gulf of Gdansk(Baltic Sea) and search for the possible correlations with the ecotoxicity results. Sediment samples were collected from four locations: the Vistula River mouth, in the Port Basin, in the area of discharge of the treated wastewater from the Wastewater Treatment Plant(WWTP) and in the area of the sunken World War Ⅱ s/s 'Stuttgart' shipwreck. The levels of elemental sulfur were determined using a gas chromatograph coupled with a mass spectrometer(GC-MS). Toxicity of marine sediment samples was estimated for three biotest organisms-bioluminescent bacteria Vibrio fischeri, crustacean Heterocypris incongruens, and Synapis alba plant. The highest toxicity of sediments for all indicator organisms was observed in samples taken at the place of the shipwreck(2-100%). The same samples had a high sulfur content(16.7-143.2 μg/g dry weight(d.w.))therefore, it was decided to investigate whether the presence of ES in the sediment in the studied area can have an impact on the results of the ecotoxicity determination in real samples. However, the removal of sulfur from the samples resulted in no significant changes in the level of toxicity of the samples. In this research it could not be confirmed that the presence of elemental sulfur is the only factor responsible for the observed sediment toxicity. It seems that other compounds or their mixtures present in the sediment may have a significant influence on the results obtained.  相似文献   

North Sea wave conditions: an analysis of four transient future climate realizations     

Nikolaus Groll  Iris Grabemann  Lidia Gaslikova 《Ocean Dynamics》2014,64(1):1-12

The multi-decadal wave conditions in the North Sea can be influenced by anthropogenic climate change. That may lead to the intensification of wave extremes in the future and consequently increase risks for the coastal areas as well as for on- and offshore human activities. Potential changes caused by alteration of atmospheric patterns are investigated. Four transient climate projections (1961–2100), reflecting two IPCC emission scenarios (A1B and B1) and two different initial states, are used to simulate the wave scenarios. The potential wind-induced changes in waves are studied by comparing future statistics (2001–2100) with the corresponding reference conditions (1961–2000). Generally, there is a small increase in future 99th percentile significant wave height for most eastern parts of the North Sea towards the end of the twenty-first century. This small increase is superimposed by a strong variability of the annual extremes on time scales of decades. Opposite to the differences in wave height, the change in wave direction to more waves propagating east shows less decadal variability and is more uniform among all realizations. Nevertheless, temporal and spatial differences of the wave height in the four climate projections point to the uncertainties in the climate change signals.  相似文献   

Reconstruction of annual winter rainfall since A.D.1579 in central-eastern Spain based on calcite laminated sediment from Lake La Cruz     

Lidia Romero-Viana  Ramon Julià  Martin Schimmel  Antonio Camacho  Eduardo Vicente  M. Rosa Miracle 《Climatic change》2011,107(3-4):343-361

We present the first winter (December to March) rainfall reconstruction based in a novel proxy, the thickness of annual calcite laminations preserved in Lake La Cruz (central–eastern Spain). A previous calibration analysis between laminae thickness and the instrumental data series (1950 to present) indicated a highly significant correlation with winter rainfall. Therefore this study attempts the winter rainfall reconstruction since the onset of laminations (1579 a.d.) by means of the calibration function previously developed. The verification analysis between inferred annual values and earlier instrumental data (1859–1949) confirms the suitability of this novel proxy and the reliability of the series reconstructed. The reconstructed series show the fluctuating character of winter rainfall in the western Mediterranean area; interdecadal dry periods alternated with wetter periods following, in a board sense, the pattern recorded by documentary sources in other regions of the Iberian Peninsula. At present times regional winter rainfall anomalies are highly correlated with the phase of the North Atlantic Oscillation (NAO). However the time series analysis showed the dominance of nonstationary components at high frequencies of the climate signal over the last four centuries suggesting that the connection between winter rainfall and the NAO has not been stable over time and also other modes of variability, not only NAO, may have conditioned winter rainfall variability.  相似文献   

Editorial Appreciation     

John Leibacher  Takashi Sakurai  Lidia van Driel-Gesztelyi 《Solar physics》2013,283(1):1-2

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Risk Assessment and Disaster Management for Natural and Anthropogenically Induced Geologic Hazards: Application to the Preolkhon Region,Western Lake Baikal,Siberia, Russia   总被引：1，自引：0，他引：1  

Danko  Lidia V.  Kuzmin  Sergey B.  Snytko  Valerian A. 《Natural Resources Research》2000,9(4):315-319

In the Western Lake Baikal, recent Baikal Rift's tectonics control the topography, seismicity, climate, geomorphology, and economy. Scarps, facets, structural terraces, horsts and grabens, and trapezoid valleys can be clearly observed. They have been generated by the recent tectonic movements along the faults and represent a serious geologic hazard. The specific geological conditions predetermine a unique variety of landscapes. Thus, the main type of the economy is tourism. However, unorganized tourism leads to the degradation of the unique landscapes. It increases risk and requires disaster management. Three criteria has been used for risk assessment: (1) degree of geologic hazard; (2) degree of landscape degradation; and (3) degree of the economy's vitality. The high ecological significance and low stability to antropogeneous pressure are typical for landscapes of the Western Lake Baikal. Thus, some special activities of disaster management should be implemented based on our investigation.  相似文献   

Book reviews     

Lidia van Driel-Gesztelyi  V. Bumba 《Solar physics》1992,141(1):203-204

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A merger tree with microsolar mass resolution: application to γ-ray emission from subhalo population     

Carlo Giocoli  Lidia Pieri  Giuseppe Tormen  Jorge Moreno 《Monthly notices of the Royal Astronomical Society》2009,395(3):1620-1630

Observations of the southern Cepheid ℓ Car to yield the mean angular diameter and angular pulsation amplitude have been made with the Sydney University Stellar Interferometer at a wavelength of 696 nm. The resulting mean limb-darkened angular diameter is 2.990 ± 0.017 mas (i.e. ± 0.6 per cent) with a maximum-to-minimum amplitude of 0.560 ± 0.018 mas corresponding to 18.7 ± 0.6 per cent in the mean stellar diameter. Careful attention has been paid to uncertainties, including those in measurements, in the adopted calibrator angular diameters, in the projected values of visibility squared at zero baseline, and to systematic effects. No evidence was found for a circumstellar envelope at 696 nm. The interferometric results have been combined with radial displacements of the stellar atmosphere derived from selected radial velocity data taken from the literature to determine the distance and mean diameter of ℓ Car. The distance is determined to be 525 ± 26 pc and the mean radius  169 ± 8 R_⊙  . Comparison with published values for the distance and mean radius shows excellent agreement, particularly when a common scaling factor from observed radial velocity to pulsation velocity of the stellar atmosphere (the p -factor) is used.  相似文献   

Erratum to “Adsorption and surface complexation modeling of palladium, rhodium and platinum in surficial semi-arid soils and sediments” [Appl. Geochem. 24(1), 86–95]     

Aboubakar Sako  Lidia Lopes  Alakendra N. Roychoudhury   《Applied Geochemistry》2010,25(12):86

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Reconstructing orogenic exhumation histories using synorogenic detrital zircons and apatites: an example from the Betic Cordillera, SE Spain   总被引：1，自引：0，他引：1  

Lidia Lonergan  & Christopher Johnson 《Basin Research》1998,10(3):353-364

Fission track thermogeochronology using detrital apatite and zircon from a synorogenic foreland basin on the northern margin of the Betic Cordillera Internal Zone is used to reconstruct the cooling and unroofing history of the sediment source areas in the Oligo-Miocene mountain belt. Previously, a heavy mineral study on the same sedimentary rocks showed that progressively deeper tectonometamorphic units were being unroofed during the latest Oligocene to middle Miocene at a minimum rate of 3  km Myr⁻¹. The fission track data have further constrained the exhumation history showing that the structurally highest (i.e. shallowest) parts of the mountain belt (Malaguide Complex) cooled relatively slowly during the latest Oligocene–Aquitanian, while the deeper metamorphic units (Alpujarride Complex) cooled at much higher rates (up to 300 °C Myr⁻¹) during the Burdigalian–Langhian. These fast cooling rates from synorogenic detritus are consistent with cooling rates calculated previously for the deeper parts of the early Miocene orogenic belt, using ³⁹Ar–⁴⁰Ar dating of muscovite, biotite and amphibole from basement metamorphic rocks. Rapid cooling in the early Miocene, which commenced at ≈21  Ma, is attributed to the change in process from erosional to tectonic denudation by orogen-scale extension within the eastern Betic Cordillera.

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