LATAM tour on Smart Cities

Just come back from Chile, Peru and Colombia, where my employer held some conferences on Smart Cities. I had the chance to talk in both venues: GIS expertise, geoprocessing, spatial analysis, etc. This is all about GIS, as always lately ūüėČ Our Smart City conferences and workshops held this month have been a great success!Continue reading “LATAM tour on Smart Cities”

Entrevista en ‘Soy Data’

Me vinieron a entrevistar de SOYDATA.net¬†¬†para hablar de temas relacionados con la Geovisualizaci√≥n como el Big Data o el Open Data y su implicaci√≥n con el Control de Calidad o el Software libre. Gracias a Jorge Ubero de SoyData por la misma. Espero que os guste, ya sab√©is que si ten√©is alg√ļn comentario o algoContinue reading “Entrevista en ‘Soy Data’”

Comparaci√≥n de DTM usando Global Mapper 17.0.1

Comparar, primero visualmente y después cuantitativamente dos DTM. Por un lado elegimos una fuente muy usual, SRTM con un DTM derivado de Fotogrametría Stereo.

Pearson correlation and GIS

Do these two variables have a correlation?. To answer this important question first of all we have to know that only if it’s a linear relationship and there are no outliers we can take advantage of Mr Pearson’s correlation statiscal tool. If i love chocolate, does this mean i have tendency of being chuby? orContinue reading “Pearson correlation and GIS”

Remote Sensing, Photogrammetry, Lidar and Landuse IGN Spain

A few more lines for leting you know again that i passed this other course¬†just now¬†in Instituto Geogr√°fico of Spain (IGN). Remote Sensing, Photogrammetry, Lidar and Landuse, a comprehensive 40h update on relevant information i need tu use on a daily basis. This ‘update’ helps me to better understand what i am working with andContinue reading “Remote Sensing, Photogrammetry, Lidar and Landuse IGN Spain”

DTM from SRTM? Let’s compare sources using RMSE (Root Mean Square Error) and a gaussian kernell density map

I guess we all can make a DTM out of many sources but SRTM is one of the most common ones, right?. Then let’s learn from this very simple approach how close we are from the SRTM raw data. Selecting a not very big¬†representative¬†area to be able to handle it, exporting raster to polygon (fromContinue reading “DTM from SRTM? Let’s compare sources using RMSE (Root Mean Square Error) and a gaussian kernell density map”

Analyse du Localisation des √©quipements publics relevant du th√®me ‘Sports, loisirs’ de Nantes M√©tropole

La premi√®re chose a dire, comme toujours est: D√©sol√©¬†pour mon fran√ßais, je fais mon mieux:-) Aujourd’hui je voudrais faire l’analyse sur la localisation des √©quipements publics de la th√©matique ‘Sports, loisirs’ de Nantes M√©tropole. http://data.paysdelaloire.fr/donnees/detail/localisation-des-equipements-publics-relevant-du-theme-sports-loisirs-de-nantes-metropole/ Les donn√©es donnent les coordonn√©es et la cat√©gorie (centre sportif, circuit de plein air, stade, gymnase, espace sportif de proximit√©,Continue reading “Analyse du Localisation des √©quipements publics relevant du th√®me ‘Sports, loisirs’ de Nantes M√©tropole”

Analyse des emplacements r√©serv√©s √† la livraison sur voirie: NANTES

*D√©sole pour mon fran√ßais, si vous voulez on peut parler en¬†anglais ou espagnol. La premi√®re chose qu’il faut faire c’est t√©l√©charger le jeu de donn√©es au site: http://data.paysdelaloire.fr/donnees/ Th√©matique :¬†Mobilit√© Le jeu propose la g√©o-localisation des emplacements r√©serv√©s √† la livraison sur voirie dans un secteur limit√© de la ville de Nantes. Ces aires permettentContinue reading “Analyse des emplacements r√©serv√©s √† la livraison sur voirie: NANTES”

Visualization will endure these difficult years of CRISIS!!

I have already worked as a building cleaner, data capture operator, copywriter, photographer, graphic designer, video editor, technical salesman… and seriously, I think i’m too old to make a living in something else now… GIS has been working for me the last 8 years and i want to stay like this!!!:-)¬†I have just read inContinue reading “Visualization will endure these difficult years of CRISIS!!”

Projets éoliens en Loire-Atlantique

C’est vraiment magnifique l’ouverture des donn√©es publiques…¬†Je vais d√©crire mon itin√©raire pour mieux comprendre: T√©l√©charger des donn√©es (Projets √©oliens en Loire-Atlantique) Telecharger DTM (SRTM v4) Faire Carte d’ombrage (ArcGIS), Orientations¬†(ArcGIS) et Inclinations¬†(ArcGIS)¬†pour mieux comprendre l’emplacement des moulins Faire Carte de densit√© (en¬†mesurent la puissance du parc) Et maintenant la carte de densit√© en Global Mapper…Continue reading “Projets √©oliens en Loire-Atlantique”