[R-sig-Geo] Landsat ETM+ Gap filling & WELD data

[Michael Sumner]

Re. your second q, please provide links to or instructions for
obtaining one of these files and someone could have a go.

Generally I would recommend *not* warping to UTM, or any other
projection, unless you really need to since much of the data
extraction and merging can be done without such a destructive process.
You haven't provided any ideas about what you are trying to do though.

Converting code is about as hard as the original code is to
understand, so I would highly recommend that you try to do that first
so you can break down the the tasks and address them individually.
It's too much to ask a general question about doing that, and there is
a lot you could do first.

Cheers, Mike.



On Thu, Oct 16, 2014 at 2:29 AM, Nuno Sá <nunocesardesa at gmail.com> wrote:
> Hello Eric
>
> Thank you, I had seen it though. Are you aware if the rgdal able to
> reproject it into UTM?
>
> All the best,
> Nuno
>
> On 15 October 2014 15:52, ejc <eric.j.christeson at gmail.com> wrote:
>
>> For the WELD data question.
>> According to: http://globalmonitoring.sdstate.edu/projects/weld/ Section
>> "Version 1.5 Product Documentation", subsection "Product Map Projections",
>>  they use an Albers Equal Area projection.
>>
>> Thanks,
>> Eric
>>
>> On Wed, Oct 15, 2014 at 5:16 AM, Nuno Sá <nunocesardesa at gmail.com> wrote:
>>
>>> Hey
>>>
>>> So, the first question is - is there an implementation of the newer
>>> algorithms for Gap filling in any R package?
>>>
>>> If not, I would be available to work with an expert to try to develop it
>>> here - some of the actual IDL code is available through Dr. Xiaolin Zhu's
>>> page: http://geography.osu.edu/grads/xzhu/ , so would it be so costly to
>>> do
>>> it here?
>>>
>>> The second is WELD data, I am absolutely confused on what is the
>>> projection
>>> they use on that dataset.. can anybody enlighten me?
>>>
>>>
>>> All the best!
>>> Nuno
>>>
>>>
>>> --
>>>
>>> Nuno César de Sá
>>> +351 91 961 90 37
>>>
>>>         [[alternative HTML version deleted]]
>>>
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>>>
>>
>>
>
>
> --
>
> Nuno César de Sá
> +351 91 961 90 37
>
>         [[alternative HTML version deleted]]
>
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-- 
Michael Sumner
Software and Database Engineer
Australian Antarctic Division
Hobart, Australia
e-mail: mdsumner at gmail.com