Digital Geography

ERDDAP: Diving into a Data Ocean

Data Lakes has become a popular term in the Big Data community. It’s used to refer to a large storage repository and processing engine. However there is now a technology from NOAA (National Oceanic and Atmospheric Administration of the USA) that turns its existing distributed data network of Petabytes of Open Data into what can be described as a Data Ocean! This technology is called ERDDAP and it provides fixed entry points on the Internet from which data can be searched for, queried and transformed. This functionality is made available via a human interface (web site) and Restful Web Services.

Open Data in the UK

The Ordnance Survey is UK’s mapping agency and frequently releases free datasets. Their OpenData policy is quite progressive compared to Germany’s and they’ve recently published some fresh datasets that anyone can use. All you need to do is to register and to acknowledge them. The new datasets are: OS Open Map – Local; OS Open Names; OS Open Rivers; and OS Open Roads. They include data on urban and rural features, an index for all the location names in the UK, a generalised open water network, UK’s connected road network and much more. All this adds up to their existing…

geo.admin.ch: bringing Swiss geodata potential to life

A priorized project of eGovernment Switzerland Usage and exchange of geodata is fostered by geo.admin.ch in a significant way. The Federal geoportal is operated by the Federal Office of Topography, swisstopo, on behalf of the coordinating body for Federal geographical information with the aim to implement the Geoinformation Act. The purpose of this Act is to ensure that geodata relating to the territory of the Swiss Confederation is made available to the Federal, Cantonal and municipal authorities, to industry and commerce, to academic and scientific institutions and to society at large, for the broadest possible use, in a sustainable, up-to-date,…

DataSF or how to do open data right

In 2010 the City and County of San Francisco’s official open data portal was launched. To me it is the ultimate experience for publishing/consuming open data: based on a WordPress system the city distributes data for several categories: Economy and Community City Management and Ethics Transportation Public Safety Health and Social Services Geographic Locations and Boundaries Energy and Environment Housing and Buildings City Infrastructure Culture and Recreation There are 820 datasets available at the moment. Depending on the source of the dataset you will either be able to download the data directly or to display it as table: You can…

Advanced access to free climate data for Germany of the Climate Data Center

Since July 1st 2014, the Deutscher Wetterdienst (DWD) eased restrictions for the usage of climate data and provides users with a big dataset of free climate data for Germany. You can obtain the data, using the FTP-Server of the Climate Data Center (CDC). The following data in the following resolutions and formats are ready to download for free: measured Paramater at the DWD-Stations for climate in hourly, daily, monthly and annual resolution and phenology in annual resolution as txt derived Paramater at the DWD-Stations for soils (pot. and actual evaporation, soil moisture, soil temperature, max. depth of frost penetration over…

short announcement: Berlin geodata downloadable…

I don’t know what’s wrong with the governmental insitutions in Germany/Berlin: They have this law, that all the geodata are somehow under an open license but to me it’s always a little hard to find it. Once you’re on the website you need to visit the site of Geodateninfrastruktur (GDI)->Geodienste to find sources for WFS, WMS or downloadable data: Once you find it, lots of data is waiting for you! you can get historical maps for Berlin, DOM and DEMs (in 2 and 5m ground resolution), soil key figures, ground water tables and other stuff. In the end you can…

Geoscience Australia – geodata collection via WMS, WFS and WCS

The Australian government now provides a bunch of commercial and free geodata on their Australia Geoscience-Portal. Like the well known U.S. data provider Earth-Explorer, you can do a product search, browse the full collection of data and application or find new released datasets. Besides this common features of data portals, the site offers a great collection of processed maps, datasets and really nice interactive models for geoscientific issues of Australia via WMS, WFS and WCS (Web Coverage Service).

How to find geospatial data for Spain

In some countries, such as the USA and Spain, there is a very nice law that makes life easy for geoscientists. This law guarantees free access to a broad range of geospatial data like DEMs, satellite imagery, aerial photographs, ground use data, hydrological information and so on. In most cases, these data are made public via web-based GIS applications. These are generally rather slow, but allow to display a lot of different datasets. I did both my diploma thesis and my PhD in Spain and I really needed to find out about all the data available. I knew that they…