The DEM is generated from stereo aerial photos by aero-triangulation.<br/>
The processing was done by and is described in:<br/>
Jordan, E.; Ungerechts, L.; Cáceres, B.; Penafiel, A. and Francou, B. (2005): Estimation by photogrammetry of the glacier recession on the Cotopaxi Volcano (Ecuador) between 1956 and 1997. In: Hydrological Sciences 50, 949-961.<br/>
<br/>
Information about further processing are rare.<br/>
<br/>
Information about the quality are also rare. Triangulation artefacts in shadowed areas of the photos are known.
Keywords:
| raster | DEM | base data | elevation |
Associated entities to this dataset:
--------
1
. spatial raster entity --------
Raster Name:
DEM 10m
Tech. Details ...
Physical Structure Description:
Object Name:
ortho_bw_dgm_10m.asc
Size (byte):
607426205
External Format:
ARC/INFO ASCII GRID
ARC/INFO, ArcGIS
Info about Georeference:
Number of Bands:
1
Rows:
6625
Columns:
6257
Verticals:
0
Spatial Reference System:
WGS_1984_UTM_Zone_17S
Cell geometry:
pixel
Cell size X:
10.0
Cell size Y:
10.0
Raster Origin:
upperLeft
Horizontal Accuracy:
not assessed
Vertical Accuracy:
not assessed
Corner Point:
xCoordinate:
681019.34
yCoordinate:
9514474.12
pointInPixel:
lowerLeft
corner:
lowerLeft
Attribute(s) ...
Attribute Name -- Attribute Label
Unit
Attribute definition
El
--
elevation
Meter
Elevation
Method
(Sampling/processing description of the values of
this attribute by one ore more steps.)
--- Step
1
---
Title
:
10m DEM generation
Description
:
DEM Generation from stereo aerial photos by aero-triangulation.
The processing was done by and is described in:
Jordan, E.; Ungerechts, L.; Cáceres, B.; Penafiel, A. and Francou, B. (2005): Estimation by photogrammetry of the glacier recession on the Cotopaxi Volcano (Ecuador) between 1956 and 1997. In: Hydrological Sciences 50, 949-961.
Information about further processing are rare.
Information about the quality are also rare. Triangulation artefacts in shadowed areas of the picture are known.
