Almost everything geospatial deals with symbols on maps or other types of displaying mechanism. Here's a new source of symbols coming from the OGC MetOcean DWG, the 'World Weather Symbols' available on GitHub.
It is described as "A complete set of WMO weather symbols in SVG with full metadata." It's not a version 1.0, but they are fully usable right away and there's "A set of pre-generated PNGs are available for download [...]". From the same source you can get the 'World Meteorological Organization - Regional Associations' (WMO-RA) in geojson, which is vector data representing the "Six regional associations are responsible for the coordination of meteorological, hydrological and related activities within their respective Regions [...]".
Other openly available geospatial-related symbols sources that I'm aware of include:
Any other pertinent source?
Here's the recent geonews in batch mode.
From the open source / open data front:
From the Esri front:
From the Google front:
In the everything else category:
In the maps category:
Apple, Google and others have been offering geofencing-related services for a while, and now Esri solidifies their offer with the public beta version of Esri's Geotrigger Service.
From the official entry: "How does the Geotrigger Service work? An invisible area drawn on a map is set to have an action or message associated with it. When your mobile device crosses into the “trigger zone” the Geotrigger Service sends a location-based message to that device, or even notifies your server for custom events. [...] The Geotrigger Service runs in the cloud. [...] Free while in beta."
For some of us, it's already time to think about Christmas gifts. Here's a new nice 'geo' book released earlier this month, it's Yann Arthus-Bertrand's Earth from Space, which includes 150 breathtaking satellite images. Wired shares 12 satellite images from the book - worth taking a look.
The book description: "From space, Earth is a magnificent sight, splashed with vivid colors, patterns, textures, and abstract forms. Views from above can also provide telling information about the health of our planet. To help us understand the more than 150 breathtaking satellite photographs in Earth from Space, Yann Arthus-Bertrand, an aerial photographer and devoted environmental activist, discusses the impact of deforestation, urban sprawl, intensive farming, ocean pollution, and more. Using high-resolution imagery, we can monitor the evolution of vegetation around the Chernobyl nuclear disaster site, snow loss on Mount Kilimanjaro, and the health of migratory bird populations. Earth from Space’s compelling selection of satellite images raises important questions about our future, while also showcasing the planet’s beauty—leaving no doubt that it is something crucial to protect."
We actually mentioned Europe's answer to GPS, Galileo, in 2005. Yesterday the following story was discussed over Slashdot, Galileo Navigation System Gets Go-Ahead From EU Parliament.
Their summary: "Plans to start up the EU's first global satellite navigation system (GNSS) built under civilian control, entirely independent of other navigation systems and yet interoperable with them, were approved by MEPs on Wednesday. Both parts of this global system — Galileo and EGNOS — will offer citizens a European alternative to America's GPS or Russia's Glonass signals. The Galileo system could be used in areas such as road safety, fee collection, traffic and parking management, fleet management, emergency call, goods tracking and tracing, online booking, safety of shipping, digital tachographs, animal transport, agricultural planning and environmental protection to drive growth and make citizens' lives easier."
Being busy is no excuse to wish everybody an happy GIS Day! You can learn more about it on gisday.com and on Wikipedia. And while we're at it, the Geography Awareness Week webpage on National Geographic's website.
Let's quote Wikipedia: "GIS Day is a grassroots educational event that enables geographic information systems (GIS) users and vendors to open their doors to schools, businesses, and the general public to showcase real-world applications of GIS. GIS Day is a global event. Organizations all over the world that use GIS, or are interested in GIS, participate by holding or sponsoring an event of their own. In 2005 more than 700 GIS Day events were held in 74 countries around the globe. The first GIS Day occurred in 1999. GIS Day is held the third Wednesday of November each year, during Geography Awareness Week, a geographic literacy initiative sponsored by the National Geographic Society."
The open source lightweight web mapping library Leaflet quickly became very popular in the past year or so, and now there's Leaflet version 0.7 released for us to play with.
From the announcement: "This is a bugfix-heavy release — as Leaflet becomes more and more stable feature-wise, the focus shifts towards stability, usability and API improvements over new features. [...] You can check out the detailed changelog of what’s already done over the recent months for 0.7 (about 90 improvements and bugfixes) [...] There are several big undertakings in refactoring Leaflet that I’d want to switch to immediately after releasing 0.7 — I’ve been holding them off for too long, and they’ll be extremely beneficial for plugin and Leaflet-based API authors." The full list is available in their announcement.
Here's the recent geonews in batch mode, covering a too long timespan once again.
On the open source / open data front:
On the Esri front:
On the Google front:
In the everything-else category:
In the maps category:
From the official page: "CLAVIN (Cartographic Location And Vicinity INdexer) is an award-winning open source software package for document geotagging and geoparsing that employs context-based geographic entity resolution. It extracts location names from unstructured text and resolves them against a gazetteer to produce data-rich geographic entities. CLAVIN does not simply "look up" location names – it uses intelligent heuristics to identify exactly which "Springfield" (for example) was intended by the author, based on the context of the document. CLAVIN also employs fuzzy search to handle incorrectly-spelled location names, and it recognizes alternative names (e.g., "Ivory Coast" and "Côte d'Ivoire") as referring to the same geographic entity. By enriching text documents with structured geo data, CLAVIN enables hierarchical geospatial search and advanced geospatial analytics on unstructured data."
Bloggage update: Over a year ago I QC'd UK Ordnance Survey data for East Anglia, and sent the polyline spike and kickback errors to the Agency, who posted the corrections this year. They noted the errors I reported fell below their own QC criteria, but they invited me to retest their updated dataset. If results were very good in 2010, with 25 errors out of 1777 polygons, they were even better in the 2013 update at only 1 spike out of 1779 polygons! Again, making public data available does help spur on data improvements, and online data validation helps identify errors quickly and efficiently. This makes it easier for the public to communicate, and for data custodians to high-grade their holdings.