1,724,343 research outputs found

    Variational constraints for Data Assimilation in ALADIN-NH dynamics

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    Ponencia presentada en: Joint 28th ALADIN Workshop & HIRLAM All Staff Meeting, celebrado del 16 al 20 de abril de 2018 en Toulouse (Francia

    Modelling flow-dependent covariances with Gaussian Integrals

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    Ponencia presentada en: Joint 29th ALADIN Workshop & HIRLAM All Staff Meeting, celebrado del 1 al 5 de abril de 2019 en Madrid (España

    Leijona tulirenkaan läpi hyppäsi ja siitä selvisi : sateenkaarisensitiivisyys lapsille suunnatussa tanssiesityksessä

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    Pauliina Aladinin opinnäytetyön aiheena on yhdenvertaisuus sateenkaarisensitiivisyyden näkökulmasta lapsille suunnatussa tanssiesityksessä. Opinnäytetyö käsittelee aihetta osallistavan Tanssiva satuhetki -teoksen kehitysprosessin ja esityksen kautta. Työ jakaa havaintoja ja tietoa sateenkaarisensitiivisestä työskentelystä esittävän taiteen työryhmien työn tueksi. Aladin määrittelee sateenkaarisensitiivisyyden tarkoittavan ymmärrystä sukupuolen, seksuaalisen suuntautumisen ja perheiden moninaisuudesta, kykyä hahmottaa moninaisuuden merkitys ihmisen toimijuuteen sekä moninaisuuden huomioon ottamista omassa toiminnassa. Opinnäytetyöhön liittyvä taiteellinen työ käsitti jo olemassa olevan Tanssiva satuhetki -teoksen kehittämisen sateenkaarisensitiiviseksi tutkimusaineistoon pohjautuen yhdessä taiteellisen työryhmän kanssa. Kyselytutkimus kartoitti kokemuksia sateenkaarivähemmistöjen näkyvyydestä lapsille suunnatuissa esittävän taiteen esityksissä ja antoi sateenkaarivähemmistöille mahdollisuuden vaikuttaa Tanssiva satuhetki -esityksen sisältöön. Lähdemateriaalina käytettiin sateenkaarivähemmistöjä käsitteleviä tutkimuksia sekä improvisaatiota ja osallistavaa taidetta käsitteleviä julkaisuja. Opinnäytetyö toi esiin sateenkaarivähemmistöjen vähäisen näkyvyyden lapsille suunnattujen esitysten roolikuvastossa. Työ perusteli sateenkaarivähemmistöjen näyttämisen tarpeellisuuden lapsille suunnatuissa esityksissä: tutkimuksen perusteella moninaisuuden näyttäminen ja näkeminen tanssitaiteen kuvastossa luo yhdenvertaisuutta. Opinnäytetyö tuotti sateenkaarisensitiivisen Tanssiva satuhetki -esityksen sekä sateenkaarisensitiivisen työskentelyn ohjeistuksen esittävän taiteen työryhmille.The subject of Pauliina Aladin´s thesis is equality from the perspective of LGBTQIA+ sensitivity in dance performances for children. The thesis examines the topic through the development process and performance of Dancing Storytelling, a participatory dance performance for children. The thesis shares observations and knowledge of working with LGBTQIA+ sensitive values to support the work of performing arts groups. LGBTQIA+ is a common abbreviation for lesbian, gay, bisexual, pansexual, transgender, genderqueer, queer, intersexed, agender, asexual, and ally community. Aladin defines LGBTQIA+ sensitivity as the understanding of diversity of gender, sexual orientation and families, the ability to perceive the importance of diversity in one’s agency, and the consideration of diversity in one's own activities. The artistic work relating to the thesis included the development of the existing Dancing Storytelling piece into a more LGBTQIA+ sensitive performance based on research material derived together with an artistic project group. A survey was conducted to map experiences of the visibility of LGBTQIA+ minorities in performing arts performances for children. It also gave LGBTQIA+ minorities and rainbow families the opportunity to influence the content of the Dancing Storytelling performance. Studies of LGBTQIA+ minorities as well as publications on improvisation and participatory art were used as source material. The thesis highlighted the low visibility of LGBTQIA+ minorities in the imagery of performances aimed at children. Aladin concluded that presenting and seeing diversity in performances created a sense of well-being and equality. The thesis delivered a LGBTQIA+ sensitive Dancing Storytelling performance and guidelines for LGBTQIA+ sensitive work methods for performing arts groups

    cds-astro/aladin-lite: Aladin Lite v3.1.0

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    What's Changed Add message for safari users to enable WebGL2 feature and reload the page by @bmatthieu3 in https://github.com/cds-astro/aladin-lite/pull/54 Starting fits support by @bmatthieu3 in https://github.com/cds-astro/aladin-lite/pull/70 Full Changelog: https://github.com/cds-astro/aladin-lite/commits/3.1.

    cds-astro/aladin-lite: Aladin Lite v3.1.1

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    What's Changed display fits images with the drag and drop by @bmatthieu3 support webp tile format by @bmatthieu3 and @tboch planetary name resolver by @tboch small ui changes and bug fixes by @bmatthieu3 add codemeta and its validatior action by @ManonMarchand in https://github.com/cds-astro/aladin-lite/pull/66 New Contributors @ManonMarchand made their first contribution in https://github.com/cds-astro/aladin-lite/pull/66 Full Changelog: https://github.com/cds-astro/aladin-lite/compare/3.1.0...3.1.

    cds-astro/aladin-lite: 3.3.0

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    <h2>What's Changed</h2> <ul> <li>[fixed] multiple calls to setImageSurvey with the same survey object led to strange behaviour.</li> <li>[perf] Display the first tile received instantly with no blending. Should enhance the slow reported in issue #88.</li> <li>[fixed] A.on('select') (debugged from ipyaladin)</li> <li>[fixed] Simbad pointer in galactical frame, cone search of simbad/vizier cats/other cone search services in galactical frame and MOC creation from selection in galactical frame => there is now a new <code>frame</code> optional param to Aladin.pix2world. If not given, the coo returned are in the frame of the view.</li> <li>[doc] Add doc for image survey definition</li> <li>[deprecation] A.createImageSurvey/A.newImageSurvey are now deprecated (but still in the API). Please use <code>A.imageHiPS</code> instead by providing a valid url or CDS ID conformed to <a href="https://aladin.cds.unistra.fr/hips/list">https://aladin.cds.unistra.fr/hips/list</a></li> <li>[refac] Simplify the instanciation of an imageHiPS/ imageFITS. Add a <code>A.imageHiPS</code> method for defining a HiPS object</li> <li>[fixed] At initialisation, giving a fov > 180 was clamped back to 180 even if we specify allsky projection (i.e. accepting fov > 180). This is now fixed.</li> <li>[fixed] MeasurementTable now display the full cell values (no ellipsis anymore)</li> <li>[fixed] aladin.on('select') has been implemented. Callback is triggered on a circle and rect selections for not on polygonal selection.</li> <li>[fixed] the cooFrame UI selector is updated if the user calls <code>aladin.setFrame</code></li> <li>[fixed] <code>reticleColor</code> and <code>reticleSize</code> options in the public API</li> <li>Restore setFoVRange</li> <li>Add CSS class for positioning the UI elements as the user wants. See the API doc aladin options for the class names to use.</li> <li>[style] The default grid color is now <code>rgb(178, 50, 178)</code> to fit the classic Aladin color palette</li> <li>[feat] The object of grid options <code>gridOptions</code> is now available in the public API</li> <li>[fixed] The parameters <code>gridColor</code> and <code>gridOpacity</code>, <code>gridOptions.showLabels</code> now work as expected</li> <li>New documentation API (W.I.P) here: <a href="https://cds-astro.github.io/aladin-lite/">https://cds-astro.github.io/aladin-lite/</a></li> <li>New release page here: <a href="https://aladin.cds.unistra.fr/AladinLite/doc/release/">https://aladin.cds.unistra.fr/AladinLite/doc/release/</a></li> <li>A major UI update by @bmatthieu3<ol> <li>Some API new classes A.box, A.button</li> <li>A status bar where the user can enque messages for a specific amount of time (Aladin.addStatusBarMessage)</li> </ol> </li> <li>Remove of JQuery and autocompletejs dependencies by @bmatthieu3</li> <li>Fix some performances issues, i.e. a bug when resizing the aladin lite view and which launched several parallel requestAnimationFrame by @bmatthieu3</li> <li>Polygon and circular selection (see Aladin class API documentation for how to use it)</li> <li>ObsCore and Datalink votable parsing and interpretation. This work is still in progress and made in the frame of the SKA radio mission by @bmatthieu3 in <a href="https://github.com/cds-astro/aladin-lite/pull/116">https://github.com/cds-astro/aladin-lite/pull/116</a></li> <li>SODA service query window formular by @bmatthieu3 in <a href="https://github.com/cds-astro/aladin-lite/pull/116">https://github.com/cds-astro/aladin-lite/pull/116</a></li> <li>read only catalog option by @szpetny in <a href="https://github.com/cds-astro/aladin-lite/pull/117">https://github.com/cds-astro/aladin-lite/pull/117</a></li> <li>Small changed regarding drawing a footprint by @szpetny in <a href="https://github.com/cds-astro/aladin-lite/pull/118">https://github.com/cds-astro/aladin-lite/pull/118</a></li> <li>Object and footprint click/hover events expose mouse coordinates by @szpetny in <a href="https://github.com/cds-astro/aladin-lite/pull/121">https://github.com/cds-astro/aladin-lite/pull/121</a></li> <li>A proposal of a new feature - fill the polygon with a color by @szpetny in <a href="https://github.com/cds-astro/aladin-lite/pull/122">https://github.com/cds-astro/aladin-lite/pull/122</a></li> <li>update getViewWCS to adapt to projection by @ManonMarchand in <a href="https://github.com/cds-astro/aladin-lite/pull/119">https://github.com/cds-astro/aladin-lite/pull/119</a></li> <li>New SAMP support by @bmatthieu3 in <a href="https://github.com/cds-astro/aladin-lite/pull/128">https://github.com/cds-astro/aladin-lite/pull/128</a></li> <li>A possibility to create Coo and Footprint objects by @szpetny in <a href="https://github.com/cds-astro/aladin-lite/pull/130">https://github.com/cds-astro/aladin-lite/pull/130</a></li> <li>new method aladin.getFrame() that returns the name of the current coordinate system</li> <li><code>getViewWCS</code> now adapts to the <code>cooFrame</code> and the <code>projection</code></li> <li><code>getFov</code> is no longer capped at 180°</li> <li>bugfix <code>setProjection</code> now also updates for 'PAR' and 'SFL' projections</li> </ul&gt

    Airborne lidar observations supporting the ADM-Aeolus mission for global wind profiling

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    The Atmospheric Dynamics Mission ADM-Aeolus of ESA will be the first lidar mission to sense the global wind field from space. The instrument is based on a direct-detection Doppler lidar operating at 354.9 nm with two spectrometers for aerosol/cloud and molecular backscatter. In order to assess the performance of the Doppler lidar ALADIN on ADM-Aeolus and to optimize the retrieval algorithms with atmospheric signals, an airborne prototype – the ALADIN Airborne Demonstrator A2D – was developed. The A2D was the first airborne direct-detection Doppler lidar with its maiden flight on the DLR Falcon aircraft in 2005. Three airborne campaigns with a coherent-detection 2-μm wind lidar and the direct-detection wind lidar A2D were performed for pre-launch validation of Aeolus from 2007-2009. Furthermore, a unique experiment for resolving the Rayleigh-Brillouin spectral line shape in the atmosphere was accomplished in 2009 with the A2D from a mountain observatory at an altitude of 2650 m. Results of this experiment and the latest airborne campaign in the vicinity of Greenland and Iceland will be discussed

    Airborne direct-detection and coherent wind lidar measurements along the east coast of Greenland in 2009 supporting ESA’s Aeolus mission

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    The Aeolus mission of the European Space Agency (ESA) will send the first wind lidar to space to fulfill the utmost need for global wind profile observations. Before the scheduled launch in late 2013, pre-launch campaigns have to be performed to validate the measurement principle and to optimize retrieval algorithms. Therefore, an airborne prototype instrument has been developed, the ALADIN Airborne Demonstrator (A2D). In September 2009 an airborne campaign over Greenland, Iceland and the Atlantic Ocean was conducted using two instruments: the A2D and a well established coherent 2-μm lidar for aerosol and cloud backscatter. Thus, two wind lidar instruments measuring Mie and Rayleigh backscatter in parallel were operated on the same aircraft. This paper describes the analysis of wind measurement data gathered during a flight segment on 26.09.2009. A dedicated aerial interpolation algorithm is introduced taking into account the different resolution grids of the two lidar systems. Via a statistical comparison of line of sight (LOS) winds the systematic and random error of the direct-detection wind lidar A2D was assessed, yielding -0.7 m/s and 1.9 m/s for the Rayleigh and 1.1 m/s and 1.3 m/s for the Mie channel, respectively

    Monitoring the Coupling - Update Frequency (MCUF): implementation in cy28t2, ARPEGE/ALADIN

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    It is investigated how the quality of the temporal interpolation of lateral-boundary coupling data for limitedarea models (LAMs) can be improved or kept under control, while increasing the data transfer between the coupling and the coupled model onldy marginally. This problem is approached from the point of view of a user of a LAM who depends on coupling data that is received from elsewhere. To this end, the interpolation is corrected using the higher-order time derivatives of the fields. It is shown that in practical situations, these time derivatives can be estimated by a one-time-step integration, well enough to be useful. This allows the user of a LAM to formulate a criterion to decide operationally in which situations the quality of the linear interpolation will be unacceptable. The idea has been implemented in a numerical weather prediction limited-area model ALADIN, and has led to a substantial reduction of the errors of a forecast of one of the French Christmas storms in December 1999

    Aladin Lite

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    Aladin Lite is a lightweight version of the Aladin tool, running in the browser and geared towards simple visualization of a sky region. Aladin Lite is powered by the WebGL technology, currently supported by any modern browser. Aladin Lite is easily embeddable on any web page and can also be controlled through a Javacript API.Aladin Lite est une version allégée de l'outil Aladin qui s'exécute directement dans la fenêtre du navigateur de l'utilisateur. Aladin Lite est avant tout dédié à la visualisation. Il s'appuie sur la technologie WebGL, supportée par la plupart des navigateurs modernes. Aladin Lite peut être facilement incorporé au sein d'une page Web. Il peut être également piloté via une API Javacript dédiée
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