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Oct
20
comment Free GIS workshops, tutorials, and applied learning material
What happened to the ELOGeo repository?
Sep
30
awarded  Explainer
Sep
24
awarded  Autobiographer
Sep
24
comment DEM generation from ASTER L1B imagery using FOSS
Here an update I forgot to share, related to ASP: lists.nasa.gov/pipermail/stereo-pipeline/2014-August/…
Aug
22
awarded  Constituent
Aug
14
comment DEM generation from ASTER L1B imagery using FOSS
Added some reference in the question.
Aug
14
revised DEM generation from ASTER L1B imagery using FOSS
added link to GENERIC RIGOROUS MODEL FOR ALONG TRACK STEREO SATELLITE SENSORS
Aug
14
comment DEM generation from ASTER L1B imagery using FOSS
For ASTER stereo images the acquisition time interval between the nadir and back image is about 50sec. [Source: ipi.uni-hannover.de/fileadmin/institut/pdf/dowman.pdf]
Aug
14
awarded  Caucus
Aug
6
revised DEM generation from ASTER L1B imagery using FOSS
added links to related data products
Aug
6
revised DEM generation from ASTER L1B imagery using FOSS
added link to atbd-ast-14.pdf
Aug
6
comment DEM generation from ASTER L1B imagery using FOSS
A direct Question and Answer, on using ASP and ASTER, exists in the stereo-pipeline mailing list: lists.nasa.gov/pipermail/stereo-pipeline/2013-September/…. The answer is no, new code would be required to parse ASTER's camera model related data as an input to ASP.
Aug
5
comment DEM generation from ASTER L1B imagery using FOSS
No ASTER related info/example in any ASP related manual I have read so far (check byss.arc.nasa.gov/stereopipeline/binaries/asp_book-2.4.1.pdf, Chapter 7).
Jul
28
comment Best Landsat-5 TM band combination for detecting fire scars
Based on single post-fire data sets, Pu and Gong (2004) also report that TM 4 and TM 7 are the best burned area discriminators. Among the visible channels, TM 1 and TM 2 were identified as the most useful in the multitemporal and the unitemporal studies respectively. | Pu, R. and Gong, P. (2004). Determination of burnt scars using logistic regression and neural network techniques from a single post-fire Landsat 7 ETM+ image. Photogrammetric Engineering and Remote Sensing, 70(7):841–850.
Jul
28
comment Best Landsat-5 TM band combination for detecting fire scars
Just adding a few more words on the subject: According to Koutsias and Karteris (1998, 2000), the spectral channels TM 4 and TM 7 provide, in both multitemporal and unitemporal data sets, the highest and second best burned area detection ability respectively.
Jul
28
awarded  Announcer
Jun
13
comment How to convert shapefile to mapinfo file preserving special characters?
(Late Reply!) Can you use QGIS? Import the Mapinfo file in question, set the correct encoding in Layer Properties > General (Tab), then Save As anything QGIS supports (via GDAL/OGR).
Jun
12
comment How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0?
Thank you @Kurt, this was the right direction for some Mapinfo vector data with lots of Greek Fields/Strings.
Jan
17
revised How do I find out the resolution in (centimeters per pixel) of a TIF?
Corrected typo in title
Jan
17
suggested suggested edit on How do I find out the resolution in (centimeters per pixel) of a TIF?