Advertisements

Posts Tagged ‘sig’

Running in Madrid. A GIS approach!

2018/05/22

Love running. I have been running without stop (well, three months after my Marathon in Valencia i had to stop due to a minor surgery) for the last -almost- four years. I love running and and love GIS and statistics. This is a bomb combination.

I wanted to figure out visually where i normally run. Well, i know it, that’s true, but its just what i remember, i go here and there. I love running in Casa de Campo and in Parque Lineal del Manzanares mostly, but not only. Also i have run in every country i have the chance to visit, normally for business purposes.

running2

I have run in South Africa (Cape Town), in Tunis (Tunis), in Santiago (Chile), in Lima (Peru), in Cannes (France) and i dont even remember where else… running5

Anyway, these density maps performed in Global Mapper overlay the geometry lines saved out my running application (Garmin Connect). and once they are exported to points, i can generate a density map, chosing a legend easy to understand and i overlay to Google Earth so its also easy to be sent if needed be (why for? i don’t know!).

running6

running4

running3

running7

Anyway, hope you guys like it.

Alberto CONCEJAL
MSc GIS

2018-05-13 09.03.18.jpg

Advertisements

LIDAR Madrid LAZ 20cm

2018/05/18

Ya van varias veces en el último mes que alguien no especialista en temas geográficos-cartográficos me habla de ‘ese sistema’ de láser para saber ‘la altura del terreno’ y es que la verdad es que LIDAR parece magia. Es bastante increible que pase un avión con una tecnología invisible a ojos humanos y que se genere una nube de billones de puntos que responde al 100% a la realidad. Es tan fácil capturar el interés de la gente con cosas que se parecen tanto a las cosas que manejas a diario… la montaña de al lado de casa, el río, el edificio, la manzana…

Si además podemos ‘pintar’ esas geometrías con datos provinientes de diferentes fuentes pues el resultado está a la vista: se empieza a generalizar el interés.

Y eso, para un geógrafo culo-inquieto como yo, deseoso de explicarse y buscar aplicaciones para esto o lo otro… mola. Y mucho.

Y sie sos datos están a libre disposición de la ciudadanía bajo el espectro del Open Data o Datos Abiertos, si podemos superponer otras capas pertinentes como por ejemplo los edificios de catastro y todas sus subparcelas catalogadas… pues miel sobre hojuelas.

Aquí algunos ejemplos:

lidar01.png

lidar02.png

lidar03.png

 

Talking in public

2018/04/27

I guess i was nervous the very first time and i even remember noticing how my voice was trembling to the bones (if i can say) back in year 2000  but now things are different. When you know what you are talking about and you are serious (well, all you can be!) then there’s no need to be nervous. This was last year in Cape Town talking to 50 of my colleagues on Quality Control procedures and Open Data validation.

hablar-en-publico-02.png

Now that i have just come back from these two conferences in Peru and Chile y have the perspective and the calm to enjoy a lot while i communicate, exactly the same way i have always done on a one by one basis while teaching geography, english or accounting (yes, i studied business before i master GIS technologies, crazy, i know).

hablar-en-publico-01.png

Anyway, enjoy the day,
Alberto

LATAM tour on Smart Cities

2018/04/24

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 😉

Our Smart City conferences and workshops held this month have been a great success! Thank you to all who participated. Ekodes Mintek AChEE

2018-04-10 10.27.51-1.jpgPRESENTACIONES-20180420.png

DbFSSRoXcAE6ojL.jpg

DbFSSRoXcAE6ojL-02.jpg

BGS Geology of Britain: Geovisualization 100%

2017/10/23

Oh! a must see: BGS Geology of Britain. Source from http://www.bgs.ac.uk/discoveringGeology/geologyOfBritain/home.html

Britain is fortunate in possessing a remarkably varied geology within a relatively small area.

The rocks that make up our islands represent a long and complicated history of events. They encompass most of the major periods of geological time and extremes of climate from desert to glacier.

Our rocky heritage was the source of many raw materials vital to the Industrial Revolution and therefore to the nation’s wealth and political power.

It is therefore not surprising, given this combination of natural treasures and the enquiring spirit of the times that, as modern sciences flourished, many important early pioneers were British Geoscientists.

Follow the links in the left hand menu to find out more about the geology of Britain using our Geology of Britain viewerGeoUK and Ireland map or Holiday geology guides.

Wrap up warm to explore Ice and our landscape or Blakeney Esker.

Customise your own geological map of the British Isles with Make-a-map

bgs-geology-great-britain-20171023-01bgs-geology-great-britain-20171023-03bgs-geology-great-britain-20171023-02

http://mapapps.bgs.ac.uk/geologyofbritain3d/index.html
Enjoy!

Alberto

Visualizar mapas animados en el tiempo: Seguimiento de aves en CARTO [ENG]

2017/01/23

SuperinteresantE demo para ‘jugar’con datos reales georeferenciados desde la aplicación CARTO. Tres aves migrando desde El Norte de Europa hasta el África subsahariana.

Source: https://carto.com/learn/guides/styling/animating-maps-with-point-data

bird-tracking-20170123.pngThis guide describes how to visualize point data over time, by applying the ANIMATED aggregation style to animate your map. This feature requires a map layer containing point geometries with a timestamp, or numeric field.

  1. Select the bird_trackinglayer
  2. Click STYLE to apply styling options for the map layer
  3. Choose ANIMATED as the aggregation option
  4. Ensure the column time_date is selected

To gain better understanding from our bird tracking data, color the paths of each of the three birds separately, by using the bird_name column to style the points by value.

After animating your data, click the FILL color and select BY VALUE. Choose the column bird_name to style your markers by the birds’ names. Edit the stroke to 0, change the blending to source-over, and set the resolution to 1.

bird-tracking-20170123-02.png

You  can download the datasource here: bird_tracking

Euclidean allocation analysis II

2016/10/28

Imagine you need to promote recycling. Imagine you have 1000 inhabitants from a small village and you need to provide proper colored plastic bags for each and every one of the categories you need to disaggregate: organic, plastic and paper.

You need to service them all properly but you can only choose 5 shops (out of the 10 available)  where you will distribute the bags for free.

In green all 1000 inhabitants (houses) and in orange the placement of all ten shops.

allocation03-combo.jpg

In green the final result: the 5 shops chosen out of the 10 potential available due to having checked they are the most optimal (the shortest euclidean distance).

allocation03-combo02.jpg

Software used:

ArcGIS 10.3
ET Geowizards 11.3

Hope you guys liked it,
Alberto

Creating value through Open Data

2016/02/19

The benefits of Open Data are diverse and range from improved efficiency of public administrations, economic growth in the private sector to wider social welfare

(Source: http://www.europeandataportal.eu/)

Performance can be enhanced by Open Data and contribute to improving the efficiency of public services. Greater efficiency in processes and delivery of public services can be achieved thanks to cross-sector sharing of data, which can for example provide an overview of unnecessary spending.

The economy can benefit from an easier access to information, content and knowledge in turn contributing to the development of innovative services and the creation of new business models.

Social welfare can be improved as society benefits from information that is more transparent and accessible. Open Data enhances collaboration, participation and social innovation.

clip_image004

The economy can benefit from easier access to information, content and knowledge in turn contributing to the development of innovative services and the creation of new business models.

For 2016, the direct market size of Open Data is expected to be 55.3 bn EUR for the EU 28+. Between 2016 and 2020, the market size increases by 36.9%, to a value of 75.7 bn EUR in 2020, including inflation corrections. For the period 2016-2020, the cumulative direct market size is estimated at 325 bn EUR.

picture_1

New jobs are created through the stimulation of the economy and a higher demand for personnel with the skills to work with data. In 2016, there will be 75,000 Open Data jobs within the EU 28+ private sector. By 2020, this number will increase to just under100,000 Open Data jobs. Creating almost 25,000 new direct Open Data jobs by 2020.

picture_2

Public sector performance can be enhanced by Open Data. Greater efficiency in processes and delivery of public services can be achieved thanks to cross-sector sharing of data, providing faster access to information. The accumulated cost savings for the EU28+ in 2020 are forecasted to equal 1.7 bn EUR.

picture_3

Open Data results in efficiency gains as real-time data is used that enables easy access to information that improves individual decision-making. Three case studies are assess in more detail: how Open Data can save lives, how it can be used to save time and how Open Data helps achieve environmental benefits. For example, Open Data has the potential of saving 7000 lives a year by providing resuscitation earlier. Furthermore, applying Open Data in traffic can save 629 million hours of unnecessary waiting time on the roads in the EU.

picture_4

Economic benefits are primarily derived from the re-use of Open Data. Value is there. The question is how big?

The European Union has adopted legislation to foster the re-use of Open (Government) Data. The expected impact of this legislation combined with the development of data portals, is to drive economic benefits and further transparency. Economic benefits are primarily derived from the re-use of Open Data. Value is there. The question is how big?

Thus, the European Commission, within the context of the launch of the European Data Portal, wished to obtain further evidence of the quantitative impact of re-use of Public Data Resources. A study was carried out with the aim to collect, assess and aggregate all economic evidence to forecast the benefits of the re-use of Open Data for all 28 European Member States and the ETFA countries, further referred to as EU 28+, for the period 2016-2020.

Direct benefits are monetised benefits that are realised in market transactions in the form of revenues and Gross Value Added (GVA), the number of jobs involved in producing a service or product, and cost savings. Indirect economic benefits are i.e. new goods and services, time savings for users of applications using Open Data, knowledge economy growth, increased efficiency in public services and growth of related markets.

The market volume exhibits the totality of the realised sales volume of a specific market; the value added. A distinction can be made between the direct market size and the indirect market size. Together they form the total market size for Open Data. For 2016, the direct market size of Open Data is expected to be 55.3 bn EUR for the EU 28+. Between 2016 and 2020, the market size is expected to increase by 36.9%, to a value of 75.7 bn EUR in 2020, including inflation corrections. For the period 2016-2020, the cumulative direct market size is estimated at 325 bn EUR.

In 2016, there will be 75,000 Open Data jobs within the EU 28+ private sector. By 2020, this number is forecasted to increase to just under 100,000 Open Data jobs. This represents a 32% growth over a 5-year period. Thus, in the period 2016-2020, almost 25,000 new direct Open Data jobs will be created.

Based on the forecasted EU28+ GDP for 2020, whilst taking into account the countries’ respective government expenditure averages, the cost savings per country can be calculated. The accumulated cost savings for the EU28+ in 2020 are forecasted to equal 1.7 bn EUR.

The aim of efficiency is to improve resource allocation so that waste is minimized and the outcome value is maximised, given the same amount of resources. Open Data can help in achieving such efficiency, The study offers a combination of the insights around the efficiency gains of Open Data and real-life examples. Three exemplar indicators are assessed in more detail: how Open Data can save lives, how it can be used to save time and how Open Data helps achieve environmental benefits. For example, Open Data has the potential of saving 1,425 lives a year (i.e. 5,5% of the European road fatalities). Furthermore, applying Open Data in traffic can save 629 million hours of unnecessary waiting time on the road in the EU.

The majority of studies performed previously are ex-ante estimations. These are mostly established on the basis of surveys or indirect research and provide for a wide range of different calculations. No comprehensive and detailed ex-post evaluations of the materialised costs and benefits of Open Data are available. Now that governments have defined Open Data policies, the success of these initiatives should be measured. The study offers several recommendations for doing so.

The report goes into further detail on how Open Data has gained importance in the last several years. Furthermore, the report provides insight into how Open Data can be used, and how this re-use differs around Europe. These insights are used to develop a methodology for measuring the value created by Open Data. The resulting values are presented in a graphical way, providing insight in the potential of Open Data for the EU28+ up to 2020.

 

(Source: http://www.europeandataportal.eu/)

 

Descargas del CNIG. Open Source bien hecho!

2016/02/08

Hola amigos del GIS,
Por motivos de trabajo que no vienen al caso, he tenido que bucear de manera sistemática la web de descargas del CNIG. http://centrodedescargas.cnig.es/CentroDescargas/inicio.do
Una maravilla.

cnig-20160208-01

Por motivos que tampoco viene al caso, he de hacer esto mismo de vez en cuando en todos los Institutos cartográficos del mundo y el del CNIG es sin duda en el que me resulta más fácil, en el que el modelo de datos en más lógico y en el que los links son más fiables de todo el mundo. La única obligación es la atribución obligatoria de los datos. ¿No es mucho pedir, no? Desde el día 27 de diciembre, los datos del IGN son libres CC By 4.0.
https://creativecommons.org/licenses/by/4.0/

Por tanto es obligatorio que mencione la procedencia a pie de imagen, créditos, etc.., sobre todo en publicaciones, usos comerciales, artículos, etc… (Por ejemplo puede poner “<tal dato> CC by instituto Geográfico Nacional” o más bien “derivado de <tal dato” CC by ign.es” o similares…).

cnig-20160208-02

Ya sea porque necesitemos las imágenes del PNOA (Plan Nacional de Ortofotografía Aérea), un modelo digital del terreno de alta resolución o imágenes históricas de nuestro pueblo… tan solo hay que bucear un poco en el catálogo de geodatos del Instituto Geográfico Nacional (Centro Nacional de Información Geográfica) y los conseguiremos.

Por ejemplo, la semana pasada tuve que encontrar datos sobre algunas ciudades españolas para hacer varios escenarios 3D para un cliente y aquí encontré por un lado un DSM 5m elaborado con fuentes LIDAR, por otro lado me bajé de Cartociudad los datos relativos a vectores lineales, manzanas y luego desde la web de CATASTRO (https://www.sedecatastro.gob.es/OVCFrames.aspx?TIPO=TIT&a=masiv) me bajé las geometrías de todos los edificios de la ciudad (que planeo geoprocesar para eliminar las formas no deseadas y para adjudicar alturas precisas gracias al LIDAR bajado con anterioridad).

Por qué no añadir geometrías de Open Street Maps (https://www.openstreetmap.org/export) o de la propia Base Topográfica Nacional BTN25 para completar dicho escenario?

barcelona-bldg-osm-capture-20160112
MADRID-GISDATA

La verdad amigos es que desde que empezó a funcionar el Open Data, los Geógrafos y derivados tenemos mucho con lo que ‘jugar’ para hacer nuestros análisis.
http://idee.es/

Espero que os resulte interesante.

Un saludo cordial,

Alberto
Geógrafo/ Máster SIG UAH/ Diseñador Multimedia

Cheers! Geovisualization.net has just been released!

2016/02/03