Sensor Web, Geoprocessing, Security & GeoRM, Geostatistics, Semantics, 3D, Ilwis, Earth Observation

Caching for Sensor Web REST-API

May 31st, 2017 @ 10:13 by Anton Egorov
Posted in 52°North, GSoC, Sensor Web

There are only two hard things in Computer Science: cache invalidation and naming things.

Phil Karlton

Caching is a common technique to improve the response time of a data source. A cache is a temporary storage for a most often acquired data. Caching is widely used in a proxying software such as Squid. The caching of network responses can provide a huge improvement to the response time. The latency of a network resource is much more greater than of a memory or a disk resource [Fig.1]. That’s why the caching is a “must-have” feature of network proxies.

Fig.1 Comparison of a memory and network latency


52°North @ Firmenlauf 2017

March 24th, 2017 @ 11:09 by Ann Hitchcock
Posted in 52°North

In spite of the dampness and cool temperatures, it was actually great running weather for this year’s Firmenlauf this past Saturday. 52°North showed up with 2 teams for the 5k race. Once again we had some great results! Team 1 came in eighth among the Mixed Teams and Team 2 finished with an honorable 85th place among the Men’s Teams (see results below)!

Congrats to all!!! (more…)

Handbook of best practices for open ocean fixed observatories

March 7th, 2017 @ 16:11 by Christoph Stasch
Posted in 52°North, Communities, Sensor Web

The FixO3 project has recently published the “Handbook of best practices for open ocean fixed observatories”. It describes optimal ways for users to implement fixed stations in an open ocean region. Download the handbook for free.


enviroCar Newsletter ….. Issue 2/December 2016

December 8th, 2016 @ 09:54 by Ann Hitchcock
Posted in 52°North, Citizen Science, enviroCar


The enviroCar Newsletter provides information about current developments and activities. It is published on a regular basis.


enviroCar Webapp

December 8th, 2016 @ 09:54 by Maurin Radtke
Posted in 52°North, Citizen Science, enviroCar

The enviroCar project allows users to collect and share their driving statistics via an OBD sensor coupled with an Android app. A new SPA (Single Page Application) is now available online ( as an amendment to the enviroCar project. It builds upon work done by Google’s Summer of Code student Naveen Jafer (please find a summary of his work on enviroCar visual analytcs here). Users are invited to test the SPA and to fill out a feedback form regarding issues or to share ideas.  (more…)

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