https://researchdata.se/en/catalogue Search results en This dataset contains 1909 georeferenced and digitized distribution maps of vascular plants originally published in the 'Atlas of the distribution of vascular plants in northwestern Europe' (Hultén 1971). The digitized maps are provided as spatial polygon features (GeoJSON). The original distribution maps are based on an extensive data collection including obtaining spatial information from regional floras and herbarium records, as well as expert opinions. Data was collected by Eric Hultén from around 1935 to 1970 and contain all known records of the species. The collection dates of the herbarium specimens and the dates of the published records will have ranged from the 18th century to 1970. A detailed description of how the original atlas was compiled as well as the method used to georeference and digitize the distribution maps can be found in Arnell et al. (2025a). R scripts and functions to perform the different pats of the digitalization process can be found in the R package 'HultenRangeMaps' (https://github.com/ArnellM/HultenRangeMaps.git). To aid spatial analyses, the package also provides a function to match the digitized distribution maps to the Swedish 10×10 km National grid (or any other grid stored as a polygon spatial feature). Citation: When using the digitized distribution maps , please cite both this dataset (Arnell et al. 2025b) and the accompanying data paper (Arnell et al. 2025a). Resolution and extent: The original maps have an effective resolution of 16×16 km and cover Scandinavia and Finland as well as parts of the Baltic countries, Germany and Russia. Data format: 1909 digitized distribution maps, GeoJSON files Data files: 1909 digitized distribution maps NOTE: The file names of the distribution map files are a combination of the the current accepted scientific name of the species and the original atlas map number (e.g. Lycopodium alpinum_0001.geojson). The current scientific names of the species in the dataset are retrieved from the Swedish Taxonomic Database, Dyntaxa (SLU Artdatabanken 2022). In Dyntaxa, hybrid species are denoted by the symbol ×. To facilitate file handling the symbol × has been replaced by the letter x in the database file names. Included in the database is an R script that allows users to change the letter x in the file names back to the symbol ×. Documentation files: README.txt HultenMetadata.csv - table containing details on the updated scientific nomenclature and manual edits of the digitized distribution maps fixFileNames.R - change the letter x in file names back to the symbol × References: Arnell, M., Auffret, A. G., & Hylander, K. (2025a) Historical distribution maps of vascular plants in Northern Europe. [Data paper]. Arnell, M., Auffret, A. G., & Hylander, K. (2025b). Historical distribution maps of vascular plants in Northern Europe (Version 1) [Data set]. Stockholm University. DOI: Available after publication. Hultén, E. 1971. Atlas of the distribution of vascular plants in northwestern Europe. Second edition. Generalstabens Litografiska Anstalts Förlag, Stockholm. SLU Artdatabanken. 2022. Dyntaxa - svensk taxonomisk databas [Dataset]. https://artfakta.se/metadata/dyntaxa. Accessed 2022-09-09. Fri, 23 Jan 2026 09:54:11 GMT https://researchdata.se/en/catalogue/dataset/2025-151 https://researchdata.se/en/catalogue/dataset/2025-151 Stockholm University Matilda Arnell Alistair G. Auffret Kristoffer Hylander Inventory (data set) of Marine Citizen Science Intiatives collected and described in the publication entitled "Past and present marine citizen science around the globe: a cumulative inventory of initiatives and data produced". AMBIO (Vol. 54, Issue 6, pp. 994–1009). https://doi.org/10.1007/s13280-024-02119-z The metadata at SND/DORIS includes geographical coverage, but mostly only to the level of country/territory. Wed, 15 Oct 2025 09:03:15 GMT https://researchdata.se/en/catalogue/dataset/2025-271 https://researchdata.se/en/catalogue/dataset/2025-271 IHE Delft Institute for Water Education Uta Wehn Ane Bilbao Luke Somerwill Torsten Linders Joan Maso Stephen Parkinson Christina Semasingha Sasha Woods The Swedish professor of Classical archaeology Arne Furumark (1903–1982), spent most of his active career studying the Minoan and the Mycenean cultures on ancient Crete. Besides his archaeological work he was also interested in Linear A, the Minoan syllabic script. The digitized letter collection comprises Furumark’s collected letters från the 1950s, the era when the decipherment of Linear B was completed, and contains letters from several important 20th century philologists, such as John Chadwick (Cambridge), Massimo Pallottino (Rom), och Heinrich Chantraine (Mannheim). Furumark also had a habit of keeping copies of his own letters. The letters have been photo scanned and have been sorted with information about sender, recipient, location, date, and language (Swedish, English, German, French, Italian, Russian). Most of the letters have also been transcribed, with Linear A and Linear B signs inserted in unicode. Mon, 02 Jun 2025 13:56:27 GMT https://researchdata.se/en/catalogue/dataset/2024-477 https://researchdata.se/en/catalogue/dataset/2024-477 Uppsala University Karin Westin Tikkanen The study covers parliamentary elections to the second chamber from 1887, the first modern election in Swedish history with clearly defined political groups within the electorate, to 1968, the last election with a bicameral system. The aim is to study the change in Swedish voter turnout during this time period, and to see how social structures affect political behavior. The data material contains both political and social data. Tue, 18 Mar 2025 16:57:51 GMT https://researchdata.se/en/catalogue/dataset/snd0140-1 https://researchdata.se/en/catalogue/dataset/snd0140-1 Uppsala University Leif Lewin 'Swedish Press Council 1916-1987' was part of the research project 'Publicistisk Sed'. The study is based on a review of the archives of the Press Council and the Press Ombudsman. Based on diaries and archived documents for each case, information has been transferred to a code scheme for data processing. The study focuses on the cases that have been received by the Swedish Press Council and the Press Ombudsman during the years 1916 to 1987. This means that all cases received have been coded, regardless of whether they have been formally processed or not. Even cases that have been written off directly have thus been considered part of the work performed. In order to gain some knowledge of the role played by individual newspapers, the name of each newspaper reported has been recorded. This information, together with information on the year and decision in the case, has been collected in a separate file. Mon, 17 Mar 2025 12:18:01 GMT https://researchdata.se/en/catalogue/dataset/snd0276-1 https://researchdata.se/en/catalogue/dataset/snd0276-1 University of Gothenburg Lennart Weibull Britt Börjeson The aim of this study is to throw light on why inequality in the distribution of income in Sweden fell from the mid-1920s to the second part of the 1950s. For this reason the project decided to collect income information referring to different years from a sample of households for one Swedish city. A database was created by coding tax records and other documents for the city of Göteborg, the second largest city in Sweden. The determination of which years to investigate was critical. For analysing changes over time it was thought as essential to have roughly equal numbers of years between years studied. Further, it was thought advisable to avoid years with too much macroeconomic turmoil as well as the years of the two World Wars. Balancing the resources for the data collection between the size of a sub sample and the number of subsamples, it was decided to assemble data for four years. The years 1925, 1936, 1947 and 1958 was chosen to investigate. It should be pointed out that the year 1947 was preferred to the following years as large social insurance reforms leading to increases in pension benefits and the introduction of child allowances were put in effect in 1948. Household is defined from registers kept in the archives (Mantalslängder). A household is defined as persons with the same surname living in the same apartment or single-family house. This means that there can be people belonging to more than two generations in the same household; siblings living together can make up a household as well. Foster children are included as long as they are registred at the same address. Adult children are considered to be living in the household of their parents as long as they are registred at the same address. In almost all cases, servants and tenants not belonging to the household are treated as separate households. Wed, 05 Mar 2025 11:22:37 GMT https://researchdata.se/en/catalogue/dataset/snd0783-1 https://researchdata.se/en/catalogue/dataset/snd0783-1 University of Gothenburg Björn Gustafsson Mats Johansson The data set include a list of sample trees ≥10 cm DBH from the Swedish National Forest Inventory. Individual sample trees measured and cored within a ten metre wide transect during the 1923-1929 survey or circular sample plots during the 1953-1962, 1983-1992, and 2013-2022 surveys are included. The 10 cm threshold was used to exclude smaller diameter trees measured on small parts of sections or plots. Variables include cluster and plot ID, tree species, diameter, tree age at breast height and total tree age, land-cover class and expansion factors for estimation of number of trees and volumes. The current NFI is based on an annual sample of about 20,000 circular plots, grouped into clusters, of which about 12,000 are surveyed in the field each year. Data for additional sample trees and more variables for individual sample trees can be obtained from the Swedish National Forest Inventory. More details are presented in the article, see Jacobsson, Jonas, Fridman, Jonas, Axelsson, Anna-Lena, Milberg, Per (2025). An aging population? A century of change among Swedish forest trees. Forest Ecology and Management. 580:122509. https://doi.org/10.1016/j.foreco.2025.122509 The data file contains 17 columns and 384790 rows. Tue, 04 Feb 2025 14:36:00 GMT https://researchdata.se/en/catalogue/dataset/2024-639 https://researchdata.se/en/catalogue/dataset/2024-639 Swedish University of Agricultural Sciences Jonas Fridman Anna-Lena Axelsson The SLU long-term agricultural field experiments are a nationwide research infrastructure consisting of experiments in hydrological management, tillage, landscape ecology, plant nutrition, weed biology and control, cropping systems, and cropping systems in northern Sweden. They are used to study how crop rotations and cultivation measures in agriculture affect soil properties and crop yields in the long term, and the effect of weather and climate on the efficacy of these treatments. The experimental sites and the data collected in the long-term experiments are a valuable resource for research, teaching and consulting. The experiments are open for those who want to use data already collected or who want to do their own sampling. All long term experiments are funded by the NJ faculty and administered by an academic department, with the activities coordinated by a committee. Twenty four long-term field experiments in plant nutrition and soil fertility are currently managed by the Department of Soil and Environment at the Swedish University of Agricultural Sciences. These experiments, starting as early as 1936 or as recently as 2010, are grouped into eight different experimental series that focus on themes such as agronomically-relevant factors including liming, long-term soil fertility, soil organic matter and soil biology. Plant and soil samples have been collected, measured for standard parameters, and archived since the start of the experiments, forming the basis of over 200 theses and papers across a broad range of disciplines. The frame experiment is located at the Ultuna Campus at the Swedish University of Agricultural Sciences and has been ongoing since 1956. The aim of the experiment is to study the effect of different combinations of organic matter and nitrogen fertilization on soil organic matter content, yield level and crop nutrient content. This dataset contains values ​​for nutrient content in crops, soil and organic matter, and yields between 1956 and 2023. The data is provided as a single tsv file (RAM56_data.tsv), with an additional seven tsv files providing context. Physical data collected by researchers since the beginning of the experiment, together with plant and soil samples collected from a subset of time points during the experiment, are stored at the Swedish University of Agricultural Sciences. Thu, 23 Jan 2025 12:27:44 GMT https://researchdata.se/en/catalogue/dataset/2024-468 https://researchdata.se/en/catalogue/dataset/2024-468 Swedish University of Agricultural Sciences Data for the Formas project Climate adaptation in vulnerable occupational groups. An Ethnographic Study. ID 2022-01841. The material consists of media material downloaded from the database retriever.se (Mediearkivet). The retriever.se database enables searches in 4071 different Swedish media from 1945 onwards (printed media, online media, radio and TV, and podcasts). Keywords used: Klimatförändringar AND utomhusarbete, storm AND utomhusarbete, nederbörd AND utomhusarbete, klimat AND utomhusarbete, kyla AND utomhusarbete och värme AND utomhusarbete. If translated into English: climate change AND outdoor work, storm AND outdoor work, precipitation (rain and snow) AND outdoor work, climate AND outdoor work, cold AND outdoor work, heat AND outdoor work. Search on all sources and all dates, 1945-2024. Number of hits: 2, 7, 11, 72, 118 and 125 respectively (total 335). Most hits were from 2010 onwards. Selection: A strategic selection that focused on texts that not only briefly mentioned weather, climate and/or outdoor work, but had these or one of these as central themes. This selection resulted in 72 texts (including deleted duplicates). Mon, 18 Nov 2024 09:57:31 GMT https://researchdata.se/en/catalogue/dataset/2024-528 https://researchdata.se/en/catalogue/dataset/2024-528 Umeå University Bo Nilsson The data contains an Excel table of 112 shipwrecks in Southern Norway and Western Sweden. The data is systematised using 64 different variables and contains additional information on dating and provenance. The table is organised as a binary indicator matrix. It is applied in a statistical analysis (Falck, T. 2024. The Becoming of Boats. Craft Practices in Southern Norwegian Boatbuilding. 1050 – 1700 CE. PhD Thesis. Stockholm University). To explain the content of the variables, an extract from the thesis is attached (Chapter 3). Here, the use of technical variables in the table is reviewed, defined and discussed. Thu, 07 Nov 2024 17:40:20 GMT https://researchdata.se/en/catalogue/dataset/2024-502 https://researchdata.se/en/catalogue/dataset/2024-502 Stockholm University Tori Falck