GPS and fieldwork?

Jessica Denniss jessicadenniss at GMAIL.COM
Sun May 23 06:12:44 UTC 2010

For those with iphones you can also get an app called GPS log, which is a
very quick and user-friendly way to log particular locations. You can tag
each log, and add photos and text as well. You can then view locations on
google maps. Free trial version is here



On 23 May 2010 13:43, Tom Honeyman <t.honeyman at> wrote:

> Just wanted to add a side point to using a handheld GPS. But I might add,
> these GPS loggers are particularly handy if the weight of your kit is
> important. I've been playing with an i-gotU logger which has software for PC
> and an open source client for Mac or Linux.
> Its a good idea if you record a track route while taking photos to start by
> taking a photo of of the screen of the GPS with the date and time (and
> location) displayed. Photographing the screen will allow you to finely
> calibrate the difference between the time stamp in your photo, and the
> date/time on the GPS (which is more accurate). There are programs that let
> you then later batch convert the time stamps in photos by a set amount if
> they are incorrect.
> The date might be incorrect because your watch was slow, or because you
> haven't changed time zones on your camera, or (and this is no recommendation
> for being lazy about setting dates on devices) you forgot to set the time.
> Also, if your little camera battery that keeps the time ticking over in your
> camera when its switched off dies, then by taking a photo of the GPS each
> time you switch the camera on, you will often be able to recover the date
> and time for your photos (given that that the time will reset to "zero" and
> tick over while you leave it switched on). You don't want to depend on it
> though, because many digital cameras will often switch off after a set
> amount of time.
> Perhaps starting a video with a shot of your gps might not be a bad idea?
> -tom
> On 23/05/2010, at 3:14 PM, David Nash wrote:
>  Further to Aidan's post on GPS loggers,
>> At 1:02 PM +1000 23/5/10, Aidan Wilson wrote:
>>> I gave it a quick go, trying to get the data off, because it's apparently
>>> just gpx files, which are readable from a bunch of different programs,
>>> including google earth. However I had immense difficulty.
>> Yes, Aidan didn't manage to get the data out of the device by unadvertised
>> means -- BUT the free software as at does
>> interrogate the device OK.
>> As well as recording a track (/route) (at a user-controlled granularity),
>> a GPS logger is good for geotagging photos from a camera that doesn't have a
>> GPS.  It is also useful for geolocating video (or any other records),
>> providing the clock time of the video etc is recorded somehow.
>> At 9:13 PM +1000 21/5/10, Nick Thieberger wrote:
>>> It is of course yet another device that needs batteries,
>> Yes -- though GPS loggers (unlike regular GPSs) typically recharge through
>> USB so don't need a separate charger.  And it is small and light enough that
>> it can be worn (eg on one's hat(!)) and ignored for the day.
>> However a GPS logger is no use for showing location while out and about.
>> David
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