[GRASS-user] i.atcorr with ASTER L1B

[andrew haywood]

Hi Mike

thanks for this supporting information. I will start the interpolation. Is
there any prefered method for this? Can I use a bilinear approach.
I think this is as far as I can take it though - as I have no understanding
of lwave.cpp and the file construct. Will it be ok to post a txt file on the
list with the interpretation results?

Cheers
Andrew


On 7/29/09, Michael Perdue <michael_perdue at yahoo.ca> wrote:
>
> Hi Andy, Yes, it looks like the right info for the SPOT sensor platforms.
> Iwave.cpp expects the data to be in 2.5nm increments so you will have to
> interpolate the data to the correct interval. It's a bit tedious, but is
> straight forward. I might be able to dedicate some time to it, but won't
> have any till the weekend now.
> Cheers,
> Mike
>
>  On 27-Jul-09, at 10:35 PM, andrew haywood wrote:
>
>  Hi All,
>
> Im just adding to this discusssion. I would be interested in using i.atcorr
> with SPOT 2, 3, 4 and 5. I have found a file on the
> http://www.spotimage.com/web/en/555-spot-images.php website that contains
> the spectral sensitivity data. Is this the same as the spectral profile? It
> looks like the data is in 5nm increments. Do i need to create 2.5nm
> increments or can i tell the function its in 5nm or 10nm increments?
> Any help would be appreciated.
> thanks
> Andy
>
>
>
> On 7/28/09, Michael Perdue <michael_perdue at yahoo.ca> wrote:
>>
>> Hi Markus,
>>
>> Here is a text file with everything organized as I think it should be. I
>> didn't add the this Iwave.cpp to submit a patch as I wasn't really sure how
>> to modify GeomCond.cpp.
>>
>> Cheers,
>> Mike
>>
>> On 26-Jul-09, at 1:34 PM, Markus Neteler wrote:
>>
>>>
>>> Great - the header of Iwave.cpp contains instructions how to add
>>> a new sensor like this.
>>>
>>> thanks
>>> Markus
>>>
>>
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>>
>>
>
>
>
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