Module Import USGS SRTM Grid
Import grid from USGS SRTM (Shuttle Radar Topography Mission) data.
You find data and further information at:
    http://dds.cr.usgs.gov/srtm/
    http://www.jpl.nasa.gov/srtm/
Farr, T.G., M. Kobrick (2000):
  'Shuttle Radar Topography Mission produces a wealth of data',
  Amer. Geophys. Union Eos, v. 81, p. 583-585
Rosen, P.A., S. Hensley, I.R. Joughin, F.K. Li, S.N. Madsen, E. Rodriguez, R.M. Goldstein (2000):
  'Synthetic aperture radar interferometry'
  Proc. IEEE, v. 88, p. 333-382
- Author: O.Conrad (c) 2004
 
- Specification: grid
 
- Menu: File|Grid|Import
 
Parameters
|   | Name | Type | Identifier | Description | Constraints | 
| Output | Grids (*) | Grid list (optional output) | GRIDS | - | - | 
| Options | Files | File path | FILE | - | - | 
 | Resolution | Choice | RESOLUTION | - | Available Choices: [0] 1 arc-second [1] 3 arc-second Default: 1 | 
| (*) optional | 
Command-line
Usage: saga_cmd io_grid 7 [-GRIDS <str>] [-FILE <str>] [-RESOLUTION <str>]
  -GRIDS:<str>     	Grids
	Grid list (optional output)
  -FILE:<str>      	Files
	File path
  -RESOLUTION:<str>	Resolution
	Choice
	Available Choices:
	[0] 1 arc-second
	[1] 3 arc-second
	Default: 1