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Android Earth Cellphones Handhelds Input Devices Open Source Stats Science

PressureNET 2.1 Released: the Distributed Barometer Network For Android 82

Posted by timothy
from the cue-up-the-maytals dept.
cryptoz writes "Cumulonimbus has released a new version of their open source, global barometer network. The network is built around an Android app called pressureNET which uses barometric sensors in new phones (such as the Nexus 4, Galaxy Nexus, Galaxy S3, Note, and others) in order to build the comprehensive network. They plan to use the data to improve short-term weather prediction, and the gives a teaser of the new data visualization tool they are building."
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PressureNET 2.1 Released: the Distributed Barometer Network For Android

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  • by SuperKendall (25149) on Thursday November 29, 2012 @12:53PM (#42131179)

    I thought it was pretty interesting that phones would include barometric sensors which I had not heard of before - are they just there in a package with other more commonly used sensors? How do the phones that have them normally make use of or present that data?

  • by SuperBanana (662181) on Thursday November 29, 2012 @01:17PM (#42131549)

    Cell phones are often:

    -In cars, which have varying interior pressure levels depending on design, speed, and other conditions (for example, I had a car where putting the sunroof in the "vent" position would result in a noticeable change in air pressure)

    -In buildings, which can have wildly different pressures floor-to-floor or even between areas depending on a variety of factors

    -In hyper-localized high pressure areas (for example, ever been caught in a severe wind gust between skycrapers? How about subway entrances and exits?)

    -At different heights. Barometer readings are useless without knowing your altitude, and GPS is extremely poor at moment-to-moment altitude data; you have to collect a fair number of points over at least a couple of minutes. Do they perform this calibration?

    A+ for the idea, C on evaluating the likely accuracy of the data...

  • Old news (Score:3, Interesting)

    by technomom (444378) on Thursday November 29, 2012 @01:45PM (#42131993)
    Old news. I have had this on my S3 since Day 1. I also have Barometer Monitor, which generated this pretty cool graph on Monday and Tuesday, October 29-30, the days Hurricane Sandy came to town and then left. http://i.imgur.com/tuM8x.png [imgur.com]

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