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<ri:Resource created="2017-10-23T11:37:12Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>SOVAP-PICARD total solar irradiance</title><shortName>VI/152</shortName><identifier>ivo://CDS.VizieR/VI/152</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Meftah M.</name></creator><creator><name>Chevalier A.</name></creator><creator><name>Conscience C.</name></creator><creator><name>Nevens S.</name></creator><date role="Updated">2017-10-23T10:39:18Z</date><date role="Created">2017-10-23T11:37:12Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>the-sun</subject><subject>spectroscopy</subject><description>From the SOlar VAriability PICARD (SOVAP) space-based radiometer, we obtained a new time series of the total solar irradiance (TSI) during Solar Cycle 24. Based on SOVAP data, we obtained that the TSI input at the top of the Earth's atmosphere at a distance of one astronomical unit from the Sun is 1361.8+/-2.4W/m^2^ (1{sigma}) representative of the 2008 solar minimum period. From 2010 to 2014, the amplitude of the changes has been of the order of +/-0.1%, corresponding to a range of about 2.7W/m^2^. To determine the TSI from SOVAP, we present here an improved instrument equation. A parameter was integrated from a theoretical analysis that highlighted the thermo-electrical non-equivalence of the radiometric cavity. From this approach, we obtained values that are lower than those previously provided with the same type of instrument. The results in this paper supersede the previous SOVAP analysis and provide the best SOVAP-based TSI-value estimate and its temporal variation.</description><source format="bibcode">2017yCat.6152....0M</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/VI/152</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/531/A6">J/A+A/531/A6 : Evolution of solar irradiance during Holocene (Vieira+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/112/2274">J/AJ/112/2274 : Spectral irradiance calibration. VII. (Cohen+ 1996)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/112/241">J/AJ/112/241 : Spectral irradiance calibration. VI. (Cohen+ 1996)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/789/117">J/ApJ/789/117 : Solar spectral irradiance (Marchenko+, 2014)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/562/A133">J/A+A/562/A133 : Irradiated atmospheres analytical model (Parmentier+, 2014)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/574/A35">J/A+A/574/A35 : Irradiated atmospheres analytical model (Parmentier+, 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/581/A26">J/A+A/581/A26 : Solar Lyman irradiance line profiles (Lemaire+, 2015)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/other/SoPh/291.3527">J/other/SoPh/291.3527 : SOLAR/SOLSPEC UV SSI from 2008-2015 (Meftah+, 2016)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/600/A21">J/A+A/600/A21 : Sun UV spectrum (06/06/2008-26/04/2009) (Bolsee+, 2017)</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface xsi:type="vr:WebBrowser"><accessURL use="full">https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VI/152</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VI/152</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VI/152</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=VI/152</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=VI/152</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=VI/152</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://tapvizier.cds.unistra.fr/TAPVizieR/tap</accessURL></interface></capability><coverage><footprint ivo-id="ivo://ivoa.net/std/moc"/><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>VI/152/composit</name><description>*PICARD/SOVAP Total Solar Irradiance - Composite</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Obs.Date</name><description>Observation date</description><ucd>time.epoch;obs</ucd><flag>nullable</flag></column><column><name>Obs.Time</name><description>Observation time</description><ucd>time.epoch</ucd><flag>nullable</flag></column><column><name>TSI</name><description>Mean Total Solar Irradiance (Composite),</description><unit>W.m**-2</unit><ucd>phot.flux.bol</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_TSI</name><description>? Standard deviation of the mean TSI (k=1), I</description><unit>W.m**-2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>o_TSI</name><description>Number of data points used for the mean values</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Chan</name><description>Channel Measurements (1)</description><ucd>spect.binSize;em.bin</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column></table></schema></tableset></ri:Resource>