[GRASS-user] High-resolution agricultural land cover from satellite imagery

[Luigi Ponti]

Dear 山田 康晴,

Thanks for your kind reply.

On 15/05/2012 03:18, 山田 康晴 wrote:
> I wonder why you want to use the Landsat TM data for the analysis of
> the high resolusion agricultural land cover.
The reason is that I found that paper I cited in my previous email
(Tatem et al. 2003;
<http://eprints.soton.ac.uk/260104/1/tatem_tgis.pdf>), which described a
way to increase resolution of land cover. I thought higher resolution
would be a good thing because of the highly fragmented agricultural
landscape I was targeting (the paper by Tatem and colleagues also
analyzes an area with small-scale agriculture in Greece).
>
> The Landsat TM, not ETM, has very long histry and is not the High-resolution
>  data as for both spatial and frequential points of view.
> There are so many research papers for the analysis on agricultural
> land cover.
I have accessed the grass-user mailing list seeking for a possible
GRASS-based approach to the task. Hence, I would be very glad if you
could point to a couple of the research papers you refer to.
>
> The "esa" or Italy scientists must have much information for your interest.
> Are you a scientist in Italy?
Yes, I am based in Italy and my background is mostly in applied ecology.
Of course people at ESA are expert in the field. My goal when accessing
this mailing list was to see if more GRASS-related info on the topic
would emerge that may benefit me and other GRASS users.

Kind regards and thank you,

Luigi

>
>
>> We are targeting an agricultural area in southern Italy (several 
>> thousands hectares) for which we have full orthophoto coverage (0.5 
>> meters resolution), and Landsat TM data can apparently be downloaded 
>> freely from <http://glcf.umd.edu/data/landsat/>. High-resolution 
>> agricultural land cover might seem overkill, but the area is highly 
>> fragmented and hence standard CORINE land cover data tend to classify 
>> most of the land as mixed types (not very helpful).
>>
>> I would like to ask a general recommendation on the best way to approach 
>> an agricultural land cover task such as the one outlined above, together 
>> with possible info on previous implementation of increasing spatial 
>> resolution of agricultural land cover maps in GRASS via neural networks 
>> or other approaches.
>>
>> Kind regards, thanks in advance and apologies for a long post,
>>
>> Luigi
>> _______________________________________________
>> grass-user mailing list
>> grass-user at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/grass-user
>
>
>