[GRASS-user] Estimating Albedo from Landsat

[Nikos Alexandris]

On Friday 17 of September 2010 22:27:40 Hamish wrote:
> Nikos wrote:
> > Given that the NC lsat data set represents untouched DN's,
> 
> does it?

We'll nail that one... ;-)

> > perhaps it has to do with "old vs new" calibration parameters?
> 
> at least for the lsat7_2000 NC maps, the cloud detection is also
> very bad, and there I confirmed the calibration numbers with the
> values listed in the r.info metadata.

ok, then I did not read carefully the previous posts. I was thinking that acca 
on the 2007 ETM+ scene was more or less good.

> I think we'll have to redownload the three NC scenes from GloVis
> to know for sure.

Downloaded:
- LT50160351987287XXX08
- extra: LT50160351988258XXX03 (includes visible clouds - maybe good for 
testing?)

Ordered via Glovis:
- LE70160352002144EDC00 (Acquisition Date: 2002/05/24)
- LE70160352000091EDC00 (Acquisition Date: 2000/03/31)