1) The document discusses using open source software like GDAL, GRASS, Octave, and R to process and analyze digital elevation models and GPS data from the Himalayas.
2) It provides steps to convert HDF DEM files to GeoTIFF using GDAL, incorporate GPS data into DEMs using GRASS, and analyze changes in DEMs over time between 1992-2008 using Octave and R.
3) It also describes using GMT to create publication-quality graphics from the results.
5. N
Everest
28˚00'
[m]
30˚ China 8000
7000
Ne 27˚50'
pa Khumbu Himal 6000
l 5000
4000
Kathmandu 3000
27˚40'
2000
1000
25˚ India 0 10 km
27˚30'
80˚ 90˚ 86˚30' 86˚40' 86˚50' 87˚00'
85˚
Takayuki NUIMURA ( ) FOSS4G 11th Dec. 2011 5 / 15
6. 2007 ( )
N
28˚00'
Everest DEM
[ m a.s.l ] GPS
6000
( 3800 – 5500 m a.s.l.)
5000
4000
27˚50' Base station
Peak China
(Nuimura et al., J. Glaciol., in revise)
Ne
p
3000
al
km
0 5 10 India
86˚30' 86˚40' 86˚50' 87˚00'
Takayuki NUIMURA ( ) FOSS4G 11th Dec. 2011 6 / 15