"A APDSI realizou, a 22 de outubro de 2014, a conferência "Sistemas de Informação Geográfica - Que políticas afinal?". O encontro decorreu no Auditório da Biblioteca Municipal Orlando Ribeiro, em Telheiras, Lisboa. Em breve disponibilizamos-lhe os vídeos e a notícia.
Portugal tem um atraso significativo na gestão do seu território, não por ausência de competências técnicas e de infra-estruturas tecnológicas, mas porque ao longo dos sucessivos governos, esta não tem sido uma prioridade política de criação de riqueza para o país.
O grupo Geo-Competitivo da APDSI entende que a falta de rigor e transparência na informação sobre o território e a sua posse é responsável por grande parte da corrupção no nosso país, designadamente através da criação de mais-valias avultadas decorrentes da requalificação de terrenos rurais em zonas urbanas. Portugal tem gasto muito dinheiro, maioritariamente de origem comunitária, na criação e manutenção de vários cadastros parcelares sem estar garantida a interoperabilidade entre eles, pelo que na conferência da próxima quarta-feira, dia 22, a APDSI vai procurar demonstrar como se pode fazer uma gestão do território mais sustentável, promovendo o progresso e integração de todos os cidadãos interessados nesse tipo de informação."
The International Soil Reference and Information Centre has released the first in a series of global soil maps. The Centre plans to release world-wide soil maps at increasing levels of resolution. The first of these maps, the SoilGrids 1km map, uses the Leaflet map library to provide a global soil map at the relatively course resolution of 1 km.
Discriminating Vegetation from Buildings. Posted on October 23, 2014 by Martin Isenburg
"I came across an interesting blog article by Jarlath O'Neil-Dunne from the University of Vermont on how LiDAR return information can be used as a simple way to discriminate vegetated areas from buildings ..."
El Departamento de Geografía de la Universidad de Wisconsi-Madison presentó en la Conferencia anual de sociedad cartográfica norteamericana celebrada en Portland entre los días 17 y 19 de octubre una investigación titulada KEEPING PACE with EMERGING web mapping technologies,
Fernando Gil's insight:
KEEPING PACE with EMERGING web mapping technologies study available at
PORTLAND, Maine — Since 2006, New York City has required owners of office towers taller than 15 stories to file “emergency action plans.” Tens of thousands of floor plans have since been delivered to the city’s fire department, which reviews them every six months to make sure they’ve properly identified [...]
Beyond ROI, Key Performance Indices and GIS Close Performance Gaps
[Note: This is the third post in our new series about Managing GIS.]
A common question we get from our utility customers is, “What is the return on investment (ROI) for GIS?” The reason is most utilities need to justify the cost of building, upgrading, or enhancing their GIS (e.g., investing in a tablet-based damage-assessment app) or doing the same with their GIS data. That justification takes the form of a financial study that answers these questions: What is the payback period of GIS? What is its impact on balance and income sheets? What is the cash flow for the project?
Utility financial people call these hard-dollar savings. Hard-dollar savings are a common measuring stick by which to judge the merits of an investment.
But there are other measuring sticks, too–especially for successful utilities. These include safety, customer service, number of accidents, and more. You’re probably already measuring these through key performance indices.
Interviewing for a position in the GIS field is not that much different from interviewing in other fields )see the article How to Survive the Interview Processfor landing the interview). Kristina Jacob presents 10 tips to get you thinking about how you will prepare yourself for that interview.
“Access to knowledge is a basic human right.” Yet sadly as scientists we are often forced to operate in a framework in which this is not always the case. This week sees the celebration of the eighth Open Access Week, and whilst there have undoubtedly been many achievements by the Open Access (OA) movement since 2009, there is still a long way to go before mankind’s basic human right to knowledge is restored.
Este es un libro libre sobre Sistemas de Información Geográfica.
Además de consultarlo on-line, puedes comprar ejemplares impresos o descargarlo en formato pdf.
Para cualquier comentario, puedes contactar con el autor.
Este libro es un proyecto abierto en el que puedes colaborar. El codigo fuente del texto y las imágenes los encontrarás en el repositorio GitHub . Si encuentras algun error puedes crear una nueva entrada en la lista de incidencias o simplemente enviar un correo electronico. Al pie de cada página encontrarás enlaces para dejar comentarios.
Para cualquier otro tipo de colaboración, no dudes en contactar por email
Esri President Jack Dangermond gives his welcome address to the 2011 Esri International User Conference. He also recognizes users' work across a variety of industries and acknowledges Vincent Hoong Seng Lei, winner of the Enterrpise GIS Award, and Sergei Sapelnikov, winner of the President's Award.
Fernando Gil's insight:
Ferbritas Cadastre Information System images (top left and top center images) shown at 5:52 min 2011 Esri IUC Plenary Session Video.
Kathleen McNeill speaks with Faheem Kahn, vice president of business development at Leica Geosystems about high definition surveying. Faheem discusses the changes in high definition surveying over the last decade, including the addition of 3D capabilities, a solutions-based approach, and how Hexagon’s range of brand will impact customers in the future.
You can hear the podcast, read the transcript of the podcast here, or download the podcast from iTunes.
Geospatial Intelligence & the Geospatial Revolution is a free online class taught by Todd S. Bacastow of The Pennsylvania State University
Week One: What is GEOINT? Learn what GEOINT is and how it provides a powerful way of thinking about and finding solutions to complex humanitarian, military, economic, and cultural problems. We'll discuss the role of secrecy and its challenges.
Week Two: GEOINT Data. Examine the types and nature of data used to create GEOINT, including textual information, imagery, and geospatial data. Discuss how location-based data is changing conceptions of privacy.
Week Three: GEOINT Data Sources. Understand how GEOINT data is collected by a variety of methods including satellites, drones, crowdsourcing, and through social media.
Week Four: The GEOINT Tradecraft. Apply the art and science of extracting meaning from GEOINT data to uncover and investigate relationships and patterns.
Week Five: Applying GEOINT Principles. Use GEOINT principles to evaluate and transform raw data into descriptions, explanations, or judgments about a place.
At Commission 7 Opening Address at the 1990 FIG Congress a set of clear and concise cadastral definitions were presented, as follows (Henssen & Williamson, 1990):
- Land Registration: is a process of official recording of rights in land through deeds or as title (on properties). It means that there is an official record (the land register) of rights on land or of deeds concerning changes in the legal situation of defined units of land. It gives an answer to the questions "who" and "how";
- Cadastre: is a methodically arranged public inventory of data concerning properties within a certain country or district, based on a survey of their boundaries. Such properties are systematically identified by means of some separate designation. The outlines or boundaries of the property and the parcel identifier are normally shown on large-scale maps, which, together with registers, may show for each separate property the nature, size, value and legal rights associated with the parcel. It gives an answer to the questions "where" and "how much".
At the Fourth Session of the United Nations Committee of Experts on Global Geospatial Information Management (UN-GGIM) in August, the Committee called for the adoption of common standards so that geospatial data can be seamlessly shared and used around the world. The Committee recognised the important work done by three international standards development organisations: the Open Geospatial Consortium (OGC), Technical Committee 211 of the International Organisation for Standardisation (ISO/TC 211) and the International Hydrographic Organisation (IHO).