Haziq

533 reputation

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visits	member for	10 months
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	533 reputation	bio	website		visits	member for	10 months
112 badges		location	Malaysia		seen	20 hours ago

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Jan 24	comment	How to determine aerosol model value for i.atcorr in GRASS? Not really. I picked this as answer because it is an easy (and free) way to get data. The problem is I can't use them because they didn't exactly match the time/location of my data-set. I've decided to abandon my search (for now) and opted for the simpler DOS1 method.. Sorry that I can't be much of a help..
Jan 8	awarded	Self-Learner
Dec 11	awarded	Enthusiast
Dec 1	awarded	Nice Question
Nov 30	comment	Why Do Colors Look Darker When Printed on Paper? Well explained! I really like the standard color palette idea. But I'm using GIMP a lot: all of those median/gaussian blur filters will definitely alter any color I originally pre-set.. The ever-changing color-palette makes it a moving-target. Any idea on how to do this?
Nov 30	accepted	How to determine aerosol model value for i.atcorr in GRASS?
Nov 30	revised	Why Do Colors Look Darker When Printed on Paper? added 4 characters in body; edited title
Nov 30	accepted	Why Do Colors Look Darker When Printed on Paper?
Nov 30	asked	Why Do Colors Look Darker When Printed on Paper?
Nov 28	answered	How to save a raster and vector into a single PNG file in GRASS?
Nov 28	comment	How to determine aerosol model value for i.atcorr in GRASS? Hey, I was wondering where to get the MODIS AOD data (it's not available on their site).. I'll take a look at this site thoroughly later; so far the data I can see there is in the same form as the TOMS data - Aerosol Index (man, NASA websites sure are complicated to browse through - I got a headache just by looking at it).. Anyway, thank you so much @Tobi :)!
Nov 28	comment	How to determine aerosol model value for i.atcorr in GRASS? This is nice! If only the data isn't so random.. The data is user-submitted, right?
Nov 27	revised	How to determine aerosol model value for i.atcorr in GRASS? deleted 1748 characters in body
Nov 27	comment	How to determine aerosol model value for i.atcorr in GRASS? I see, that's one way to do it.. But I've decided to pursuit this route of atmospheric correction at other time and have opted (for now) the simplified DOS1 method. Thanks for the clarification of the TOMS Earth Probe data: it is indeed an index and unit-less - not quite like the AOD data required by the 6S algorithm.. But I have yet to find free AOD data readily usable for the period of Landsat I'm using (<2004). But with further reading here, the data could still be processed further to develop the model. Maybe.
Nov 27	comment	Is there an easy way to taper huge amounts of drainage vectors? I need to verify something; did I do step #3 right?: `(sqrt(proximity))*(exp(distance/-bandwith))`
Nov 22	comment	Recoloring geotiff for visual presentation I usually have to preprocess GeoTIFFs with `gdal_translate` or the other GDAL tools - and preserve the geo-tags with libgeotiff - before passing it to GIMP. I heard Photoshop is better suited than GIMP for this kind of purpose, so I guess that'll be your best bet. If all fails - you can always bite the bullet and use a more full-fledged GIS software like GRASS, QGIS, SAGA, etc.. Wish you all the best ;)
Nov 22	comment	Recoloring geotiff for visual presentation It loads? Can you go on doing what you want while ignoring the error? I haven't seen that kind of error when handling GeoTIFFs in GIMP before (but I have no experience with RapidEye images).. GIMP to my experience is still rough on the edges when it comes to handling GeoTIFFs
Nov 22	comment	Adding shapefiles to PostGIS database `shp2pgsql` on PostGIS 1.5 should theoretically work the same, but I haven't personally tried using PostgreSQL and PostGIS from the OpenGeo Suite - so I really can't pin-point what went wrong, sorry.. Maybe someone with better experience in using OpenGeo Suite can give you a better assistance..
Nov 22	comment	Adding shapefiles to PostGIS database I'm sorry - are you sure you have PostgreSQL and PostGIS installed correctly? Which versions are you using, and which documentations did you used as guides when installing them?
Nov 22	comment	Adding shapefiles to PostGIS database That's weird. Because your error `NOTICE: CREATE TABLE will create implicit sequence "-c_gid_seq" for serial column "-c.gid"` tells us that it chose `-c` as the name of the table instead of `Pima`.. Can you try: `shp2pgsql -s 4326 -p /var/www/geo/shapefile/PimaPine.shp public.Pima \| psql -h localhost -d geospecies -U smaranh`, and then `shp2pgsql -s 4326 -a /var/www/geo/shapefile/PimaPine.shp public.Pima \| psql -h localhost -d geospecies -U smaranh`? This basically prepares the table first, and then populate the data into that table. Do share the output :)