The obvious advantage of all electronic data is that you don't need to
type it into your computer but that you can download it in a second.
I don't think that there is one best solution for all possible types
of terrain. If you're close to power supply, if you collect several
hundred measurements in a few days, if you work with a field computer,
if you don't need to rock or ice climb to reach your outcrops, if
weight is of minor importance, then fully digital solutions are great
and save a lot of time.
In other cases other solutions are undoubtedly more useful.
Some of the apps supply azimuth and dip and record plunge direction
and plunge, and for some phones rubber or hard cases are available.
And they still record azimuth and dip even without positioning system
in reach.
Cheers,
Julia
Quoting Jurgen Kraus <[log in to unmask]>:
> I was wondering what the advantage of a cell phone compass is other
> than speed? It does not have the shape of a Klar compass and it
> relies on cell phone towers nearby, so not usable in areas such as
> the Canadian shield or the Gobi desert, not even in large parts of
> the Canadian Rockies. It appears to work with strike and dips (if I
> understand this correctly, which would be confusing for the 3-D
> worker) as opposed to dip direction. And if it is dropped, the
> stored data is gone. Considering how used my rugged Freiberger looks
> (with pencil notes on the lid), I wonder how long that plastic cell
> phone case will last in the field. Cell phones can also not be
> exposed to rain and to high heat (battery). And, it is difficult to
> attach it around one's neck, so the chance to leave it in the
> outcrop is rather big. Last but not least, when you camp out in the
> wilderness without electricity, it may be a challenge to charge the
> battery.
>
> In summary, I don't think the main concern is the software but the hardware.
>
>
> Jürgen Kraus
>
> Franconia Geoscience Ltd.
> http://franconia-geo.com/
> 2011 - 20th Ave SW
> Calgary, AB
> CANADA T2T 0M1
> [log in to unmask]
> +1 (403) 245-2206
>
>
>
>
> On 2011-11-04, at 7:00 AM, Pavlis, Terry L wrote:
>
>> thanks--I was interested in the accuracy question! And I've been
>> using your program and like it a lot--so this was a question in
>> general on this issue.
>> Terry
>>
>> From: Tectonics & structural geology discussion list
>> [mailto:[log in to unmask]] On Behalf Of Marco Foi
>> Sent: Friday, November 04, 2011 3:24 AM
>> To: [log in to unmask]
>> Subject: Re: geoclino software
>>
>> Il 03/11/2011 22:02, Pavlis, Terry L ha scritto:
>> Has anyone tried the new software from GSI in Japan?
>> http://www.gsinet.co.jp/english/software/android.html
>>
>> If this works, it is a lot cheaper than buying their expensive
>> digital compass; aka the Geoclino.
>> Terry Pavlis
>> Univ. Texas at El Paso
>> Hi Terry.
>> Please let me begin with stating that what I am writing is a
>> non-neutral opinion.
>> This is so as in 2009 I devised and created eGEO Compass: the very
>> first geological compass for Android ever made.
>> (You can read about it, wiew some screenshots and download the
>> 'app' here: http://www.mcfoi.it/egeo_compass/ )
>>
>> I cannot release some quantitative information on this ML but the
>> key point of your question is quality of data.
>> Since it can be assumed that all applications 'work' (otherwise
>> they would not be sold!), it is a matter of taste wether you prefer
>> GSI one or mine.
>> What I can say is that both are affected by the hardware they run
>> on. In the case of GSI Geoclino, the whole product (hardware and
>> software) was designed by GSI.
>> In the case of Android (or iPhone) apps the same software can
>> behave slightly different depending on the adopted phone, depending
>> on the quality of its sensors and its electronics design.
>>
>> As a general answer "yes: Android geological compasses DO WORK"...
>> ..and they do their work in a small fraction of the time. Two
>> seconds for capturing dip data with pitch against 3 minutes for the
>> same action using analogic compasses.
>>
>> You should consider them as a tradeoff between a slow-but-accurate
>> (500USD) analogic Geo Brunton and a fast-but-expensive (1400USD!!)
>> digital GSI Geoclino.
>>
>> Marco Foi
>>
>> --
>> Università degli Studi di Milano
>> c/o Dipartimento di Scienze della Terra
>> Via Mangiagalli 34
>> 20133 MILANO
>> ITALY
>> tel. 39-0250315503
>> fax 39-0250315494
>> E-mail: [log in to unmask]
>
>
Dr. Julia Kramer Bernhard
Scientific Staff
Swiss Geological Survey
swisstopo, Bern
Tel: +41-31-963 2525
Mobile: +41-76-493 2413
email: [log in to unmask]
http://www.linkedin.com/in/juliakramer
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