[Blends-commit] r2547 - /projects/gis/trunk/debian-gis/tasks/sar

[a_valentino-guest at users.alioth.debian.org]

Author: a_valentino-guest
Date: Sat Dec 11 17:37:29 2010
New Revision: 2547

URL: http://svn.debian.org/wsvn/blends/?sc=1&rev=2547
Log:
Improved ROI_PAC description.
Updated ROI_PAC home page url.

Modified:
    projects/gis/trunk/debian-gis/tasks/sar

Modified: projects/gis/trunk/debian-gis/tasks/sar
URL: http://svn.debian.org/wsvn/blends/projects/gis/trunk/debian-gis/tasks/sar?rev=2547&op=diff
==============================================================================
--- projects/gis/trunk/debian-gis/tasks/sar (original)
+++ projects/gis/trunk/debian-gis/tasks/sar Sat Dec 11 17:37:29 2010
@@ -175,7 +175,7 @@
  Instrument) onboard ERS 1/2.
 
 Depends: roipac
-Homepage: http://www.openchannelfoundation.org
+Homepage: http://www.openchannelfoundation.org/projects/ROI_PAC
 License: non-free (licenses available at no charge for non-commercial use)
 Responsible: Antonio Valentino <antonio.valentino at tiscali.it>
 Pkg-Description: Repeat Orbit Interferometry PACkage
@@ -183,6 +183,40 @@
  division of NASA and CalTech for processing SAR images to create InSAR
  images, named interferograms. ROI_PAC stands for Repeat Orbit
  Interferometry PACkage. It is a UNIX based software package.
+ .
+ ROI_PAC a Repeat Orbit Interferometry Package that allows researchers
+ in the area of topography and surface change to apply Interferometric
+ Synthetic Aperture Radar (InSAR) methods, is now freely available to
+ the community. ROI_PAC, developed primarily to work with ERS data,
+ currently supports ERS-1, ERS-2, JERS, Envisat and ALOS PALSAR data,
+ and is configurable to work with "strip-mode" data from all existing
+ satellite radar instruments.
+ .
+ InSAR is the synthesis of conventional SAR techniques and
+ interferometry techniques that have been developed over several decades
+ in radio astronomy and radar remote sensing, and in recent years has
+ opened entirely new application areas for radar in the earth system
+ sciences, including topographic mapping and geodesy [v. e.g., Thompson
+ et al. 1986, Massonnet and Feigl 1998, Rosen et al. 2000].
+ .
+ ROI_PAC uses raw radar data, ancillary information from telemetry and
+ navigation solutions, and digital elevation models (DEM; externally
+ provided or interferometrically derived) to produce a variety of
+ derived data products, including the full resolution images,
+ interferograms, phase images measured as principal value and
+ continuously "unwrapped," DEMs, and error estimates. Each of the
+ products is available in its natural radar coordinate system and
+ georeferenced to a DEM. The software computes the interferometric
+ baseline (i.e. the orbital separation of the satellite at the
+ observation times) from the provided navigation solutions, and the
+ refines the estimate to the mm level of precision using the provided
+ DEM and optional deformation model as reference. To remove the
+ topographic signature from an interferogram, ROI_PAC simulates an
+ interferogram from the orbit data and the DEM, and subtracts the phase
+ from the measured interferogram, leaving just the deformation phase.
+ ROI_PAC implements its fundamental algorithms in C and Fortran 90 and
+ drives each executable module with a Perl control script, running on
+ SGI, Sun, Mac OS X, and Linux platforms.
 
 Depends: orfeo
 Homepage: http://www.orfeo-toolbox.org