Improving distribution models of riparian vegetation with mobile laser scanning and hydraulic modelling.

This study aimed at illustrating how direct measurements, mobile laser scanning and hydraulic modelling can be combined to quantify environmental drivers, improve vegetation models and increase our understanding of vegetation patterns in a sub-arctic river valley. Our results indicate that the resultant vegetation models successfully predict riparian vegetation patterns (Rho = 0.8 for total species richness, AUC = 0.

Accelerating changes in ice mass within Greenland, and the ice sheet's sensitivity to atmospheric forcing.

From early 2003 to mid-2013, the total mass of ice in Greenland declined at a progressively increasing rate. In mid-2013, an abrupt reversal occurred, and very little net ice loss occurred in the next 12-18 months. Gravity Recovery and Climate Experiment (GRACE) and global positioning system (GPS) observations reveal that the spatial patterns of the sustained acceleration and the abrupt deceleration in mass loss are similar.

Measurements of Ru in Sweden during the autumn 2017: Gamma-ray spectrometric measurements of air filters, precipitation and soil samples, and in situ gamma-ray spectrometry measurement.

During the last days of September to the first days of October in 2017, a unique detection of Ru was observed in air filters sampled at different locations in Sweden via the national air monitoring network. Furthermore, measurements of precipitation also showed the presence of Ru. This initiated soil sampling and in situ gamma-ray spectrometry at one of the locations.

Application of a Monte Carlo method to the uncertainty assessment in in situ gamma-ray spectrometry.

In situ gamma-ray spectrometry has since the introduction of portable germanium detectors been a widely used method for the assessment of radionuclide ground deposition activity levels. It is, however, a method that is most often associated with fairly large and, more important, poorly known combined measurement uncertainties. In this work an uncertainty analysis of in situ gamma ray spectrometry in accordance with the Guide to the Expression of Uncertainty in Measurements is presented.

Rapid breakthrough of I in an in vitro human epidermis model.

Skin contamination with radionuclides may cause local radiation damage, but also systemic distribution if the nuclides penetrate the epidermal membrane. Detailed information of the skin absorption of radionuclides is of importance for e.g.