[R-sig-Geo] AVHRR NDVI3g time series tool?

[Ahmadou Dicko]

You can also use the gimms R package and the downloadGimms function.

https://cran.r-project.org/package=gimms

Best

On Mon, Mar 27, 2017 at 10:00 PM, Andy Bunn <Andy.Bunn at wwu.edu> wrote:

> Huh. That is very cool. It doesn't look like the NDVI data are in ERDDAP.
> They are all here in a really easy form: https://ecocast.arc.nasa.gov/
> data/pub/gimms/3g.v1/
>
> I'll dig some more.
>
> Thanks.
>
> From: Michael Sumner <mdsumner at gmail.com<mailto:mdsumner at gmail.com>>
> Date: Monday, March 27, 2017 at 2:03 PM
> To: Andy Bunn <andy.bunn at wwu.edu<mailto:andy.bunn at wwu.edu>>, R-sig-Geo <
> r-sig-geo at r-project.org<mailto:r-sig-geo at r-project.org>>
> Subject: Re: [R-sig-Geo] AVHRR NDVI3g time series tool?
>
>
> Maybe xtractomatic?
>
> On Tue, Mar 28, 2017, 07:55 Andy Bunn <Andy.Bunn at wwu.edu<mailto:Andy
> .Bunn at wwu.edu>> wrote:
> Hi all, shot in the dark here. But is there a prefabricated tool for
> extracting the biweekly time series from  AVHRR NDVI3g for a particular
> set of points? I can download all the data and process it myself but
> wondering if there is a package that would make this easy. E.g., what I'd
> like would be to have the biweekly NDVI time series from 1981 to 2015 for
> these points without processing all the netcdf files:
>
>
> require(sp)
> pts <- data.frame(ID="NOCA","MORA","OLYM",
>                   lat=c(48.776, 48.879,47.802),
>                   long=c(-121.299,-121.726,-123.604))
> coordinates(pts) <- ~lat+long
>
>
> Can such a thing be easily done?
>
> Thanks in advance for advice, Andy
>
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> --
> Dr. Michael Sumner
> Software and Database Engineer
> Australian Antarctic Division
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> Kingston Tasmania 7050 Australia
>
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-- 
Ahmadou H. DICKO, PhD

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