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This study investigated patterns and controls of the seasonal and inter-annual variations in energy fluxes (i.e., sensible heat, H, and latent heat, lambda E) and partitioning of the water budget (i.e., precipitation, P; evapotranspiration, ET; discharge, Q; and soil water storage, Delta S) over five years (2001-2005) in a boreal oligotrophic fen in northern Sweden based on continuous eddy covaria
MOD17A2 provides operational gross primary production (GPP) data globally at 1 km spatial resolution and 8-day temporal resolution. MOD17A2 estimates GPP according to the light use efficiency (LUE) concept assuming a fixed maximum rate of carbon assimilation per unit photosynthetically active radiation absorbed by the vegetation (epsilon(max)). Minimum temperature and vapor pressure deficit derive
Popular Abstract in Swedish Avhandlingens delstudier omfattar kvantitativa och kvalitativa data rörande en grupp tonåringar och unga vuxna med dyslexi. Såväl kognitiva som psykosociala faktorer undersöktes. Gruppen bestod av 75 ungdomar mellan 14 och 25 år som fick diagnosen dyslexi någon gång mellan 1994 och 1999. Datainsamlingen genomfördes 2003 - 2004. Intervallet mellan diagnostillfället och uThe studies in this doctoral thesis report aspects of cognitive and socio emotional development in a group of teenagers and young adults with dyslexia. The 75 subjects, between 14 and 25 years of age, had been diagnosed in the latter half of the 1990s, and the collection of quantitative and qualitative data was performed in 2003-04. Study I investigated the stability of intelligence. Earlier rese
An array of sustainable ways either to reduce the amount of waste rubber generated or for the re-utilisation of waste rubber products as different means of resources at the end of their service lives are provided and briefly evaluated from economic, social and environmental perspectives. Potential measures which the Swedish rubber industry and its major stakeholders can implement (within the conte
The satellite-derived normalized difference vegetation index (NDVI), which is used for estimating gross primary production (GPP), often includes contributions from both mosses and vascular plants in boreal ecosystems. For the same NDVI, moss can generate only about one-third of the GPP that vascular plants can because of its much lower photosynthetic capacity. Here, based on eddy covariance measur
Understanding the relationships between climate and carbon exchange by terrestrial ecosystems is critical to predict future levels of atmospheric carbon dioxide because of the potential accelerating effects of positive climate-carbon cycle feedbacks. However, directly observed relationships between climate and terrestrial CO2 exchange with the atmosphere across biomes and continents are lacking. H
Unusually high CO2 concentrations were frequently observed during stable nights in late summer 2006 at the CarboEurope-Integrated Project (CEIP) forest site in Norunda, Sweden. Mean CO2 concentrations in the layer below the height of the eddy-covariance measurement system at 30 m reached up to 500 mu mol mol(-1) and large vertical and horizontal gradients occurred, leading to very large advective
Meteorological data and soil data have been collected at a site in the central Sudan from 2002 to 2012. The site is a sparse savanna in the semiarid region of Sudan. In addition to basic meteorological variables, soil properties (temperature, water content, and heat flux) and radiation (global radiation, net radiation, and photosynthetic active radiation) were measured. The dataset has a temporal
Uppsatsen handlar om ogiltigförklaring och skadestånd inom ramen för ämnet tvister om uppsägnings- och avskeds giltighet. Uppsatsen använder en kombination av rättsdogmatisk och rättsanalytisk metod. Syftet med uppsatsen är att klargöra, problematisera och jämföra gällande rätt med LAS-utredningens- och överenskommelsens förslag inom ramen för uppsatsens ämne. Syftet är vidare att analysera potent
Ever since archeologists opened the resting place of Pharao Akhenaton (14th century B.C.) at Tel el-Amarna in the late nineteenth century there has been discussions on whether “The Great Hymn to Aten” – which was discovered there – has in someway influenced Psalm 104 in the Psalter of the Old Testament. It was suggested that the Great Hymn to Aten has had an direct literal influence on the psalm,
Temperature measurements in trunks and branches in a mature ca. 100 years-old mixed pine and spruce forest in central Sweden were used to estimate the heat storage in the tree biomass. The estimated heat flux in the sample trees and data on biomass distributions were used to scale up to stand level biomass heat fluxes. The rate of change of sensible and latent heat storage in the air layer below t
The performance of eight fast-response methane (CH4) gas analysers suitable for eddy covariance flux measurements were tested at a grassland site near the Cabauw tall tower (Netherlands) during June 2012. The instruments were positioned close to each other in order to minimise the effect of varying turbulent conditions. The moderate CH4 fluxes observed at the location, of the order of 25 nmol m(-2
The use of Penman-Monteith (PM) equation in thermal remote sensing based surface energy balance modeling is not prevalent due to the unavailability of any direct method to integrate thermal data into the PM equation and due to the lack of physical models expressing the surface (or stomatal) and boundary layer conductances (g(S) and g(B)) as a function of surface temperature. Here we demonstrate a
• It is well established that individual organisms can acclimate and adapt to temperature to optimize their functioning. However, thermal optimization of ecosystems, as an assemblage of organisms, has not been examined at broad spatial and temporal scales. • Here, we compiled data from 169 globally distributed sites of eddy covariance and quantified the temperature response functions of net ecosys
Forest management practices can alter soil conditions, affecting the consumption and production processes that control soil methane (CH4) exchange. We studied the short-term effects of thinning, clear-cutting and stump harvesting on the CH4 exchange between soil and atmosphere at a boreal forest site in central Sweden, using an undisturbed plot as the control. Chambers in combination with a highpr
Afforestation has been proposed as a strategy to mitigate the often high greenhouse gas (GHG) emissions from agricultural soils with high organic matter content. However, the carbon dioxide (CO2) and nitrous oxide (N2O) fluxes after afforestation can be considerable, depending predominantly on site drainage and nutrient availability. Studies on the full GHG budget of afforested organic soils are s
Denna uppsats behandlar idrottskvinnor i nyhetssändningar i svensk respektive italiensk public service-tv. Undersökningen redogör för hur kvinnliga idrottare skildras i jämförelse med manliga i nyhetssändningarna som granskats. För att skapa en internationell uppfattning vad gäller representationen av damidrotten i tv valdes en komparativ undersökning mellan Italiens och Sveriges public service-ka
Today risk analyses are commonly used by authorities at national, regional and municipal levels in their work to prevent and prepare for crises. The analyses provide information about types of incidents that can occur and the potential consequences of these events. In Sweden and Norway it is mandatory for local authorities to conduct risk and vulnerability analyses and use them as an input in thei
