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

[Nuno Sá]

Hey

Thank you for the heads up!

WELD data is available here: http://weld.cr.usgs.gov/

Data extraction cannot be done here since need a longer time series. All I
want is to extract values from the LS images at a certain number of months.

All the best!
Nuno


On 16 October 2014 00:26, Michael Sumner <mdsumner at gmail.com> wrote:

> 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]]
> >>>
> >>> _______________________________________________
> >>> R-sig-Geo mailing list
> >>> R-sig-Geo at r-project.org
> >>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> >>>
> >>
> >>
> >
> >
> > --
> >
> > Nuno César de Sá
> > +351 91 961 90 37
> >
> >         [[alternative HTML version deleted]]
> >
> > _______________________________________________
> > R-sig-Geo mailing list
> > R-sig-Geo at r-project.org
> > https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>
>
>
> --
> Michael Sumner
> Software and Database Engineer
> Australian Antarctic Division
> Hobart, Australia
> e-mail: mdsumner at gmail.com
>



-- 

Nuno César de Sá
+351 91 961 90 37

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