cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5879/175h-ky42
title: Mapping of base cation deposition in the Nordic countries
title: Mapping of base cation deposition in the Nordic countries

description: Base cation deposition from the atmosphere provides, together with weathering, ions for neutralising acidity and, after sufficient reductions of acidifying deposition, a source for replenishing lost base cation pools. The present dataset is a mapping of base cations over the Nordic countries and was performed using the data assimilation part of the SMHI MATCH-model as of 2003 (optimum interpolation) with a grid spacing of 11km. The mapping was based on monitoring data for concentrations of base cations in air and precipitation in the Nordic and surrounding countries. For a detailed description of the methodology the reader is refered to Lövblad et al., 2003, pp7-14.
description: Datamaterialet består av en kartläggning av baskatjoner över de nordiska länderna och genomfördes med hjälp av dataassimileringsdelen av MATCH-modellen, med en upplösning på 11x11 meter. Kartläggningen baserades på övervakningsdata för koncentrationer av baskatjoner i luft och nederbörd i de nordiska och omgivande länderna. (MATCH är en avancerad datormodell som utvecklats på SMHI). En detaljerad beskrivning av metoden finns i Lövblad et al., 2003, sid 7-14.

För mer information se engelska sidan på https://snd.gu.se/en/catalogue/study/ECDS0075.
DOI: 10.5879/enp2-vm53
title: Torneträsk tree-ring width (TRW) and density (MXD) AD 500-2004
title: Torneträsk trädringbredd (TRW) och densitet (MXD) AD 500-2004

description: Tree-ring width (TRW) and maximum density (MXD) from Tornetrask in northern Sweden, covering the period AD 500 - 2004. Non-climatological growth trends in the data are removed using Regional Curve Standardization (RCS). A climate reconstruction based on MXD captures 63-64% of the inter-annual summer temperature variation.

Variables:
MXDrcs = Maximum ring density, with regional curve standardization 
MXDlow = Low frequency (c. 100 yrs) variation,with 95% confidence interval 
TRWrcs = Tree-ring width, with regional curve standardization 
TRWlow = Low frequency (c. 100 yrs) variation,with 95% confidence interval
description: Torneträsk trädringbredd (TRW) och densitet (MXD) AD 500-2004. 

Se engelska katalogsidan för utförligare beskrivning: https://snd.gu.se/en/catalogue/study/ECDS0182

Variabler:
MXDrcs = Maximum ring density, with regional curve standardization 
MXDlow = Low frequency (c. 100 yrs) variation,with 95% confidence interval 
TRWrcs = Tree-ring width, with regional curve standardization 
TRWlow = Low frequency (c. 100 yrs) variation,with 95% confidence interval
DOI: 10.5878/jmcf-hh67
title: Transcription of published prayer books in Swedish, 1552-1559
title: Transkribering av tryckta bönböcker på svenska, 1552-1559
title: Transcription of published prayer books in Swedish, 1552-1559

description: The source is comprised of transcriptions of the first 5000 words (words on from title pages, forewords, calendars etc are excluded) in the five prayer books that were published in Swedish in the years 1552-1572. Titles of each prayer book is included in the source (but not included in the word count). Spelling has been normalised to enable quantification.
description: Materialet utgörs av transkriberingar av de 5000 första orden (ord på titelblad, i förord, inledande kalendarium, osv har uteslutits) i de fem bönböcker som publicerades på svenska mellan åren 1552 och 1572. Titlar på respektive bönbok framgår av materialet (ej inräknat i de 5000 orden). Stavning har normaliserats för att möjliggöra kvantifiering.
DOI: 10.5879/9rqv-m876
title: Microsatellite data for Lobaria pulmonaria, Kuhmo, Finland
title: Mikrosatellitdata för lobaria pulmonaria (lunglav), Kuhmo, Finland

description: Microsatellite data from Lobaria pulmonaria (fragment lengths for each of the alleles).

For full details, see publication:
Ronnås, C., Werth, S., Ovaskainen, O., Várkonyi, G., Scheidegger, C., & Snäll, T. (2017). Discovery of long-distance gamete dispersal in a lichen-forming ascomycete. New Phytologist, 216(1), 216-226. https://doi.org/10.1111/nph.14714
description: Mikrosatellitdata för Lobaria pulmonaria, insamlade i Kuhmo i östra Finland. 

För fullständig beskrivning, se: 
Ronnås, C., Werth, S., Ovaskainen, O., Várkonyi, G., Scheidegger, C., & Snäll, T. (2017). Discovery of long-distance gamete dispersal in a lichen-forming ascomycete. New Phytologist, 216(1), 216-226. https://doi.org/10.1111/nph.14714
DOI: 10.5878/1ww5-pp64
title: High-vertical resolution radiosonde profile of the lower troposphere, Bollebygd, Sweden 2019
title: Hög vertikal upplösning radiosondeprofil av nedre troposfären, Bollebygd, Sverige 2019

description: Radiosonde profile from a clear day in late winter with rise-rate ~2m/s and 1 second sampling rate. 
Key variables: Altitude (m AGL), Pressure (Pascal), Speed (m/s), Heading (degrees), Temperature (C), Relative humidity (%), Latitude, Longitude, Rise speed (m/s).
Wind speed to 3729 m AGL, other variales to 5388 m AGL.

Sonde: Sparv Embedded S1H3-R.

Dataset includes CSV with meteorology and flight history data and kml of flight path.
description: Radiosonde-profilen från en klar dag på sen vinter med stigningshastighet ~ 2m / s och 1 sekunders samplingsfrekvens.
DOI: 10.5878/a86e-kd87
title: Developing a rule-based method for identifying researchers on Twitter: The case of vaccine discussions
title: Developing a rule-based method for identifying researchers on Twitter: The case of vaccine discussions

description: This study seeks to develop a method for identifying the occurrences and proportions of researchers, media and other professionals active in Twitter discussions. As a case example, an anonymised dataset from Twitter vaccine discussions is used. The study proposes a method of using keywords as strings within lists to identify classes from user biographies. This provides a way to apply multiple classification principles to a set of Twitter biographies using semantic rules through the Python programming language. The script used for the study is here deposited.

Method development for Twitter biography classification concerning occurrences of academics, academically related groups and individuals, media, other groups and members of the general public. Written in the Python programming language.
description: Denna studie söker utveckla en metod för att identifiera förekomster och proportioner av forskare, media- och andra professionella aktiva i Twitterdiskussioner. Som ett fallexempel används ett anonymiserat dataset från vaccindiskussioner på Twitter. Studien föreslår en metod som använder nyckelord som strängar inom listor för att identifiera klasser ifrån användarbiografier. Detta möjliggör en applicering av multipla klassifikationsprinciper till en mängd Twitterbiografier genom att använda semantiska regler genom programmeringsspråket Python. Det skript som använts för att genomföra studien är här deponerat.

Metodutveckling för klassning av Twitterbiografier rörande förekomster av akademiker, grupper och individer relaterade till akademi, media, andra grupper samt allmänhet. Skriven i programmeringsspråket Python.
DOI: 10.5879/911z-4b84
title: CO2 fluxes from organic soils in Sweden 2012-2016
title: Koldioxidflöden från organiska jordar i Sverige 2012-2016

description: CO2 fluxes from a cultivated and a set-aside agricultural filed on organic soils in Harbo, Sweden, between 2012 and 2016, measured by eddy-covariance. 

For full details, see publication:
Hadden, D. & Grelle, A (2017). The impact of cultivation on CO2 and CH4 fluxes over organic soils in Sweden, Agricultural and Forest Meteorology, 243, 15 September, 1-8. DOI: 10.1016/j.agrformet.2017.05.002
description: Koldioxidflöden från odlade och obrukade mark i Harbo, Sverige, mellan 2012 och 2016, uppmätta med eddy-kovarians. 

För fullständiga detaljer, se publikationen:
Hadden, D. & Grelle, A (2017). The impact of cultivation on CO2 and CH4 fluxes over organic soils in Sweden, Agricultural and Forest Meteorology, 243, 15 September, 1-8. DOI: 10.1016/j.agrformet.2017.05.002
DOI: 10.5879/6nzn-dw91
title: Observations of Noctilucent Clouds from Denmark during 2011
title: Observationer av "noctilucent clouds", Danmark 2011

description: Observations of noctilucent clouds include images in the jpg format and a summary of their occurrence during summer season from the end of May to the middle of August. 
The time intervals between taken images are as follows: 3 min is from 20 May until 9 June; 1 min is from 10 June until 24 July; this is a high NLC season; 3 min is from 25 July until 15 August.
Images for a given night are contained in a single folder. The name of the folder corresponds to the first date of a given night, i.e., 2011-06-01 is for the night 01/02 June 2011.

The data is divided into three zip packages, after collection period, and a zip package with readme file and excel file.

Images for a given night are contained in a single folder. The name of the folder corresponds to the first date of a given night, i.e., 2011-06-01 is for the night 01/02 June 2011.
description: Observationer av "noctilucent clouds", nattlysande moln, i Danmark under maj till augusti 2011. 

Se engelska katalogsidan för fullständig beskrivning: https://snd.gu.se/en/catalogue/study/ECDS0082

Data är uppdelade i tre zip-paket, efter insamlingsperiod, samt ett zip-paket med readme-fil och excelfil.
DOI: 10.5878/z0a2-mq63
title: Occurrence patterns of L. pulmonaria and its host trees (aspen and goat willow), together with 400-year fire history data, Teerisuo-Lososuo, Finland
title: Förekomstdata på lunglav (Lobaria pulmonaria), på dess värdträd asp (Populus tremula) och sälg (Salix caprea) samt från skogsbränder under en 400-årsperiod, Teerisuo-Lososuo naturreservat, Kuhmo, Finland

description: This data archive contains data used in the study by Fabritius et al. (2019): Estimation of metapopulation colonization rates from disturbance history and occurrence pattern data, Ecology. All data have been previously used also in other studies (Gu et al. 2001, Snäll et al. 2005, Lankia et al. 2012, Ronnås et al. 2017). 

The data include two-time-point occurrence pattern data of an endangered lichen L. pulmonaria, empirical snapshot data on aspen (P. tremula) and goat willow (S. caprea) counts, and 400-year data of forest fires. All data have been collected in the Teerisuo-Lososuo nature reserve, Kuhmo, Finland (2 086 ha; 63°88'N, 29°18'E) and projected in the Finnish YKJ projection.

Ilkka Hanski initiated the surveys in the late 1990’s and Gergely Várkonyi, Matti Komulainen, Jari Huotari, Pirjo Appelgren and Mikko Heikura assisted with field work.

The data include two-time-point occurrence pattern data of an endangered lichen L. pulmonaria, empirical snapshot data on aspen (P. tremula) and goat willow (S. caprea) counts, and 400-year data of forest fires. All data have been collected in the Teerisuo-Lososuo nature reserve, Kuhmo, Finland (2 086 ha; 63°88'N, 29°18'E) and projected in the Finnish YKJ projection, EPSG:2393.
description: Materialet innehåller data som användes i studien av Fabritius m. fl. (2019): Estimation of metapopulation colonization rates from disturbance history and occurrence pattern data, tidskrift Ecology. Alla data har tidigare använts även i andra studier (Gu et al 2001, Snäll et al. 2005, Lankia et al., 2012, Ronnås et al., 2017). 

Uppgifterna innehåller data på förekomstmönster från två tillfällen för lunglav (Lobaria pulmonaria), förekomstmönster för asp (Populus tremula) och sälg (Salix caprea), samt 400 års data från skogsbränder. Alla uppgifter har samlats in under 1997-2010 i Teerisuo-Lososuo naturreservat, Kuhmo, Finland (2 086 ha, 63 ° 88'N, 29 ° 18'E) och projiceras i Finlands YKJ-projektion. 

Ilkka Hanski initierade undersökningarna i slutet av 1990-talet och Gergely Várkonyi, Matti Komulainen, Jari Huotari, Pirjo Appelgren och Mikko Heikura assisterade med fältarbete.

Uppgifterna innehåller data på förekomstmönster från två tillfällen för lunglav (Lobaria pulmonaria), förekomstmönster för asp (Populus tremula) och sälg (Salix caprea), samt 400 års data från skogsbränder. Alla uppgifter har samlats in under 1997-2010 i Teerisuo-Lososuo naturreservat, Kuhmo, Finland (2 086 ha, 63 ° 88'N, 29 ° 18'E) och projiceras i Finlands YKJ-projektion, EPSG:2393.
DOI: 10.5878/e3zh-k231
title: The effects of exercise training on HPA-axis reactivity and autonomic response to acute stress – a randomized controlled study
title: Effekter av fysisk träning på HPA-axelreaktivitet och autonom respons på akut stress - en randomiserad kontrollerad studie

description: The aim of the present trial was to study the effects of a six-month aerobic exercise intervention on the physiological response to acute laboratory stress. A two-armed RCT including untrained but healthy individuals aged 20-50 years was conducted. Assessments included a peak oxygen uptake test and a psychosocial stress test (the Trier Social Stress Test). A total of 88 participants went through both baseline and follow-up measures (48 in the intervention group and 40 in the control group) with an even distribution of women and men (20/28 in the intervention group and 18/22 in the control group, respectively). Outcome measures were adrenocorticotrophic hormone, cortisol, systolic- and diastolic blood pressure and heart rate responses to acute psychosocial stress.

Outcome measures: adrenocorticotrophic hormone, cortisol, systolic- and diastolic blood pressure and heart rate responses to acute psychosocial stress.
description: Datamaterialet har använts i en studie som syftar till att undersöka effekterna av en träningsintervention på fysiologisk respons på akut stress. Totalt 88 individer ingår i materialet, samtliga har genomgått både baslinje- och uppföljande mätningar. Variablerna i materialet är bland annat ACTH, kortisol, syreupptag, puls och blodtryck.
DOI: 10.5878/k4gh-wt43
title: Data for: An iterative approach to determine the refractive index of 3D printed 60GHz PLA lenses
title: Data for: An iterative approach to determine the refractive index of 3D printed 60GHz PLA lenses

description: This study is a part of the research project eMC-Hammer. It describes an iterative approach to determine quasi-optical properties of standard 3D printer filament material to, in an inexpensive and fast way, construct focusing lenses for millimetre wave systems. Results from three lenses with different focal lengths are shown and discussed. The real part of the permittivity at 60GHz for polylactic acid (PLA) is in this paper determined to be er=2.74.

Purpose:

The purpose with the study is to validate an iterative, low cost, method of determining the refractive index of 3D printed lenses, where otherwise expensive equipment would be needed, such as S-parameter measurements using a vector network analyzer.

The dataset contains measurements, simulation results and matlab code used for the conference article "An iterative approach to determine the refractive index of 3D printed 60GHz PLA lenses" (doi:10.1049/cp.2018.1480)
See the conference article (methods) and lapc2018mainfigure.m (data description - meta data) for details.
description: Den här studien är en del av forskningsprojektet eMC-Hammer. Den beskriver ett iterativt tillvägagångssätt för att bestämma kvasi-optiska egenskaper hos standard 3D-skrivarfilamentmaterial för att, på ett kostnadseffektivt och snabbt sätt, kunna konstruera fokuseringslinser för millimetervågsystem. Resultatet för tre objektiv med olika brännvidd visas och diskuteras. Den verkliga delen av permittiviteten vid 60 GHz för polylaktid (PLA) är här bestämd att vara er = 2,74.

Syfte:

Syftet med studien är att validera en iterativ, kostnadseffektiv, metod för att bestämma brytningsindex på 3D-utskrivna linser, där annars dyr utrustning skulle behövas, till exempel S-parameter-mätningar med en vektornätverksanalysator.

Datasetet innehåller mätningar, simulationer och matlab-kod som användes till konferensartikeln "An iterative approach to determine the refractive index of 3D printed 60GHz PLA lenses" (doi:10.1049/cp.2018.1480).
Se konferensartikeln (metoder) och lapc2018mainfigure.m (databeskrivning - metadata) för detaljer.
DOI: 10.5878/mt2y-ky68
title: On the information content in linear horizontal delay gradients estimated from space geodesy observations
title: Horisontella atmosfärsgradienter skattade med hjälp av rymdgeodetiska tekniker

description: The data are produced for a scientific article, https://doi.org/10.5194/amt-2018-318, with the following abstract:

We assess the quality of estimated linear horizontal gradients in the atmospheric propagation delay above ground-based stations receiving signals from the Global Positioning System (GPS). Gradients are estimated from 11 years of observations from five stations in Sweden. Comparing these gradients with the corresponding ones from the European Centre for Medium-Range Weather Forecasts (ECMWF) analyses show that GPS gradients confirm known seasonal effects both in the hydrostatic and the wet components. The two GPS stations equipped with microwave absorbing material below the antenna in general show higher correlation coefficients with the ECMWF gradients compared to the other three stations. We also estimated gradients using GPS data from two collocated antenna installations at the Onsala Space Observatory. Correlation coefficients for the east and the north wet gradients from GPS can for specific months reach up to 0.8 when compared to simultaneously estimated wet gradients from microwave radiometry. The best agreement is obtained when an elevation cutoff angle of 3° is applied in the GPS data processing, in spite of the fact that the radiometer does not observe below 20°. Based on the four years of results we note a strong seasonal dependence in the correlation coefficients, from 0.3 during months with smaller gradients to 0.8 during months with larger gradients, typically during the warmer, and more humid, part of the year. Finally, a case study using a 15-day long continuous Very Long Baseline Interferometry (VLBI) campaign was carried out.
The comparison of the gradients estimated from VLBI and GPS data indicates that a homogeneous and frequent sampling of the sky is a critical parameter.
description: Datamängden består av atmosfärsmätningar med hjälp av signaler från globala satellitbaserade navigationssystem. Data är insamlade vid fem platser i Sverige, från 2006 till 2016. Speciellt fokus är på Onsala rymdobservatorium där atmosfärsskattningar från två GNSS-stationer jämförs med motsvarnade skattningar gjorda med data från mikrovågsradiometri och långbasinterferomtri (VLBI = Very Long Baseline Interferomtry) under perioden 2013–2016.
DOI: 10.5879/vekf-yk32
title: Testfishing in Örserumsviken 2000-2009
title: Provfiske i Örserumsviken 2000-2009

description: Biological data from coastal water generated in recipient control programs i Kalmar County inSweden.
The database consists of 13 tables. The data is generated from testfishing outside the pulpmill of Mönsterås.
description: Biologiska data från kustvatten som genereras i mottagarstyrningsprogram i Kalmar län i Sverige.
Databasen består av 13 tabeller. Uppgifterna genereras av provfiske utanför Mönsterås massakälla.
DOI: 10.5878/t5zn-6t13
title: Physico-chemical parameters measured at a high spatial resolution in the Miellajokka catchment, Sweden
title: Fysikalisk-kemiska parametrar uppmätta med en stor rumslig upplösning i Miellajokka-avrinningen, Sverige

description: High spatial resolution dataset of CO2 evasion in a stream network in northern Sweden (52.5 km2; Miellajokka catchment). We measured key hydrological parameters to estimate k600, directly determined the pCO2, and estimated stream CO2 evasion across 168 sites in the stream network. 

Comparison of pCO2 values from a global compilation of river chemistry (GLORICH; Hartmann et al., 2014) with calculated site-specific k600 and CO2 evasion.
description: Dataset med hög rumslig upplösning för CO2-undandragande i ett bäcknätverk i norra Sverige (52,5 km2; Miellajokka avrinningsområde). Viktiga hydrologiska parametrar uppmättes för att uppskatta k600, direkt bestämd pCO2 och beräknad strömavlopp CO2-undvikning över 168 platser i bäcknätverket.

Jämförelse av pCO2-värden från en global sammanställning av flodkemi (GLORICH; Hartmann et al., 2014) med beräknad platsspecifik k600 och CO2-evasion.
DOI: 10.5878/qgmc-th29
title: Black communities, gold and markets: Understanding motivations for and addressing barriers to more sustainable community-based gold mining within Colombia’s Pacific Coast
title: Black communities, gold and markets: Understanding motivations for and addressing barriers to more sustainable community-based gold mining within Colombia’s Pacific Coast

description: Data corresponds to demographic information, mining practices, governance structures, and relevant gold-market outlets for 423 individuals from the communities of San Juan and Yurumangui in the Colombian Pacific Coast. The data includes the results of a Choice Experiment applied to the same individuals to identify preferences for mining formalization schemes. For data collection, we trained and hired a local team of surveyors within each community. Surveys were collected using an online platform. We eliminated outliers when the time to fill out a survey was infeasibly short.
description: Data corresponds to demographic information, mining practices, governance structures, and relevant gold-market outlets for 423 individuals from the communities of San Juan and Yurumangui in the Colombian Pacific Coast. The data includes the results of a Choice Experiment applied to the same individuals to identify preferences for mining formalization schemes. For data collection, we trained and hired a local team of surveyors within each community. Surveys were collected using an online platform. We eliminated outliers when the time to fill out a survey was infeasibly short.
DOI: 10.5879/f74w-2z16
title: PCBs in Arctic surface waters, 2001, 2005 and 2008
title: PCB i arktiskt ytvatten, 2001, 2005 och 2008

description: Data for water samples obtained during three expeditions to the Arctic Ocean in 2001, 2005, and 2008.

Analyzed parameters are 
 - individual PCB congener concentrations in seawater 
 - position 
 - year of collection 
 - salinity 
 - temperature 
 - humic substances 
 - particulate organic carbon (POC) 
 - the d13C of POC
description: Data för vattenprover erhållna under tre expeditioner till Arktis Ocean 2001, 2005 och 2008.

Beskrivning av variabler som ingår i datasetet finns på engelska katalogsidan: https://snd.gu.se/en/catalogue/study/ECDS0150