While there is the handy QGIS processing algorithm Download file, often publicly availabe (geo-)data are compressed in a ZIP archive. That's why I've started to develop a "Unzip Archive" processing algorithm for use in the QGIS processing toolbox. Thanks to the already available class QgsZipUtils it was not that difficult.
webrian
Technical GIS snippets and related notes
Sunday, December 18, 2022
Monday, December 13, 2021
Updates in 2021
Apart from updating and rerun the scripts for the cloudless atlas, unfortunately no updates ... :(
Tuesday, December 22, 2020
Cloudless Atlas Laos 2020
To track down new hydro power reservoir and schemes I've downloaded most 2020 Landsat 8 scenes of northern Laos and applied my cloudless script.
Northern Laos |
Friday, December 20, 2019
The Nam Ngiep Hydropower Scheme
Just recently I continued mapping the Nam Ngiep hydropower scheme, see also my previous post about Nam Ngiep 1.
So far my findings:
So far my findings:
Nam Ngiep1 |
Labels:
Hydropower,
Landsat,
Laos,
OpenStreetMap
Friday, December 7, 2018
Yet Another Hydropower Dam: Nam Ngiep 1
Meanwhile Nam Ngiep 1 dam has been completed and the reservoir has been filled during rainy season in 2018. I.e., it's high time to put in on the map!
Nam Ngiep 1 reservoir area in January 2018 |
Labels:
Landsat,
Laos,
OpenStreetMap
Wednesday, November 1, 2017
New hydropower dam: Nam Phay
Just recently I've put the Nam Phay hydropower reservoir on the map!
During Lao New Year 2014 I had the chance to visite this area, see pictures below:
During Lao New Year 2014 I had the chance to visite this area, see pictures below:
The Nam Phay reservoir area in Januar 2015 |
Labels:
Landsat,
Laos,
OpenStreetMap
Saturday, November 26, 2016
Another Hydropower dam: Xekaman 1
Just recently I've found by chance the Xekaman 1 hydropower reservoir on Landsat 8 imagery. Time to put it on the map!
The Xekaman river area recorded on 24th January 2015, just before water storage started |
Labels:
GRASS GIS,
Landsat,
Laos,
OpenStreetMap
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