<?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?>
<ri:Resource created="2002-07-18T12:34:04Z" 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>Hemispheric Sunspot Numbers 1975-2000</title><shortName>J/A+A/390/707</shortName><identifier>ivo://CDS.VizieR/J/A+A/390/707</identifier><altIdentifier>doi:10.26093/cds/vizier.33900707</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Temmer</name></creator><creator><name>M.</name></creator><creator><name>Veronig</name></creator><creator><name>A.</name></creator><creator><name>Hanslmeier</name></creator><creator><name>A.</name></creator><date role="Updated">2002-07-18T12:34:14Z</date><date role="Created">2002-07-18T12:34:04Z</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><description>Hemispheric sunspot numbers including the time span from 1975-2000 are presented. The Sunspot Numbers are calculated from sunspot drawings made at the Kanzelhoehe Solar Observatory (KSO), Austria. The counted northern and southern Sunspot Numbers are normalized and multiplied with the International Sunspot Numbers taken from SIDC for matching days in order to provide the data within an international usage. Days without observation by KSO (about 27 percent) were reconstructed applying a linear interpolation method. As validation of the data, regression methods and a cross-correlation analysis are made with hemispheric Sunspot Numbers from SIDC for the available time span 1992-2000 obtaining very good agreements. The results are given in monthly mean and smoothed monthly mean Sunspot Numbers. Based on this data set an analysis concerning the North-South asymmetry is made in the paper.</description><source format="bibcode">2002A&amp;A...390..707T</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/390/707</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+AS/106/327">J/A+AS/106/327 : Observations of the Sun during 1993 at Santiago (Noel 1994)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/110/351">J/A+AS/110/351 : Sun observations in 1992 (Sanchez+, 1995)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/113/131">J/A+AS/113/131 : Observations of the Sun during 1994 (Noel, 1995)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/113/237">J/A+AS/113/237 : Ultraviolet Spectrum of the Sun (Samain, 1995)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/132/195">J/A+AS/132/195 : Astrolabe observations of the Sun in 1995-1997 (Noel 1998)</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=J/A+A/390/707</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/390/707</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/390/707</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/390/707</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/390/707</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/390/707</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"/></coverage><tableset><schema><name>default</name><table><name>J/A+A/390/707/catalog</name><description>Date, monthly mean and smoothed monthly mean northern and southern Sunspot Numbers</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>Date</name><description>Year and month of calculated values</description><ucd>time.epoch</ucd><flag>nullable</flag></column><column><name>r_Date</name><description>[*] Months with few observations (1)</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Nmon</name><description>Monthly northern sunspot numbers</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Smon</name><description>Monthly southern sunspot numbers</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Nsmooth</name><description>? Smoothed monthly northern sunspot numbers (2)</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Ssmooth</name><description>? Smoothed monthly southern sunspot numbers (2)</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>