Hola,<div>pots pasar de UTM a lat/lon amb <a href="http://home.hiwaay.net/~taylorc/toolbox/geography/geoutm.html">http://home.hiwaay.net/~taylorc/toolbox/geography/geoutm.html</a> fent servir la zona 31T.</div><div><br></div>
<div>Pel cas de Nulles (x=357548, y=4568212, zone=31T) el resultat es lat=41.25277461252139 i lon=1.2997106936893326. Si vas al gmaps (<a href="http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=41.25277461252139,+1.2997106936893326&aq=&sll=37.0625,-95.677068&sspn=48.15347,82.705078&ie=UTF8&ll=41.250322,1.298339&spn=0.005622,0.010096&t=h&z=17">http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=41.25277461252139,+1.2997106936893326&aq=&sll=37.0625,-95.677068&sspn=48.15347,82.705078&ie=UTF8&ll=41.250322,1.298339&spn=0.005622,0.010096&t=h&z=17</a>) veuras que esta al mig una vinya (ja pot ven ser, mira la fitxa de l'estacio).</div>
<div><br></div><div>Se que l'SMC tambe te les dades lat/lon, aixi que podria oferir-les tambe al web. Una altre cosa es que tot estigui correcte :p<br><br><div class="gmail_quote">2011/2/8 JP Glutting <span dir="ltr"><<a href="mailto:jpglutting@gmail.com">jpglutting@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hola Inquiets,
<div><br></div><div>Tinc una pregunta per vosaltres, sobre la conversió de coordenades en UTM alon-lat en WGS84. Concretament, les coordenades d'algunes estacions meteorologiques del MeteoCat (<a href="http://www.meteo.cat/xema/AppJava/TaulaEMAs.do" target="_blank">http://www.meteo.cat/xema/AppJava/TaulaEMAs.do</a>).</div>
<br>De entrada, no sé fan anar el datum ED50 (International-1924) o ETRS89. Cap dels dos, utilitzant una eina com aquest: <a href="http://www.rcn.montana.edu/resources/tools/coordinates.aspx" target="_blank">http://www.rcn.montana.edu/resources/tools/coordinates.aspx</a> em dona massa confiança, simplement per mirar les coordenades en Google Maps i veure que estan moltes vegades en mig de camps cultivats o carrers.<div>
<br></div><div>Algu sap més del tema? Quina datum fa anar el MeteoCat. Tampoc sé, si fos ED50, si cal fer una reonversió de coordenades de ED50 a WGS-84 posteriorment.</div><div><br></div><div>Gracies,</div><div>JP</div>
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