The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part Bl. Beijing 2008
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1.2 C-SAP:
ISPRS-ISRO Cartosat-1 Scientific Assessment Programme (C-
SAP) was initiated with an announcement of opportunity on
January 13, 2006, through an e-mail and a web-page
announcement in Commission-IV website for evaluating the
mapping potential of Cartosat-1 stereo data. A number of test
sites and investigators spread across the globe were selected for
this Programme by an international evaluation team. Principal
Investigators provided reference data sets over the test sites for
which Cartosat-1 stereo data were provided by ISRO. The
combined data sets were provided to respective investigators of
each test site in two phases, first in May-June 2006 for the
Commission-IV Goa Symposium held in September 2006 in
India and for the Inter-Commission Hannover Workshop in
Germany held in May, 2007; and secondly for the Beijing
Congress in China being held in July 2008, subsequent to the
Goa Symposium. See Nandakumar et al, 2006 for more details
on C-SAP.
2. SUMMARY OF INVESTIGATIONS CARRIED OUT
The test sites involved, corresponding investigating agencies,
Cartosat-1 data acquisition dates and a brief account of
reference data sets made available by the Principal Investigators
have all been presented in Table-1.
s.
No.
Site
No./Name/
Country
Type of Terrain
Cartosat-1
Data
Acquisition
Dates
Description of Ref. Dataset
#
Investigating Agencies
1.
TS-1, Drum
Mountains,
USA
Mountainous
topography with
a height range of
700 m
Oct. 2005&
Nov. 2005
Aster DEM & Orthoimage (15 m
grid), Digital Ortho Quarter Quadrangle
(5 m) and NED & SRTM DEMs (30 m
grid)
2
USGS (Dr. G Bryan
Bailey - PI)
NRCan
2.
TS-3, Aix-en-
Provence,
France
Information not
available.
Dec. 2005
Two Aerial DEMs (50 m & 30 m grid
with accuracy 5 m & 2.6 m) & Map
GCPs
1
UCL(Prof Ian Dowman
& Dr. P. Michalis-PI)
3.
TS-4, Salon,
France
Flat & rolling
terrain
Feb. 2006
25 GCPs with 3 m ht. accuracy &
DTM (25 m grid with 2 m accuracy)
2
IGN (Dr. R Gachet - PI)
Milano U
4.
TS-5,
Mausanne les
Alpilles,
France
A low mountain
massif (650m ht
range) with
forest,
agricultural
plains, small
urban
settlements, a
few water bodies.
Jan. 2006
Feb. 2006
56 GCPs with 5 cm accuracy & Aerial
DEM (2 m grid & 0.6 m accuracy) +
Additional 25 GCPs identified and
acquired through differential GPS
receivers to cover the two Cartosat-1
stereo pairs.
7
JRC-EC (Dr. S Kay -PI)
Leibnitz U
DLR
ETHZ
RRSSCN, ISRO
RACURS
Milano U
5.
TS-6, Rome,
Italy
A flat terrain with
elevations ranging
between 20 and 60
m.
Jun 2005
(uncompressed
mode)
48 GCPs with 10 cm accuracy & 3
different DEM data sets (20 m
grid/TIN points with better than 50 cm
accuracy)
3
U Rome (Dr Crespi -
PI)/Eurimage/CyberCity
NRSA
ETHZ
6.
TS-6a, Castel
Gandolfo, Italy
Small hills with
two volcanic
lakes
Jul. 2006
(cloudy)
70 GCPs with 10 cm accuracy & an
aerial Laser scan DEM over two
volcanic lakes
1
U Rome (Dr. M. Crespi
- PI) /Eurimage
/CyberCity
7.
TS-9, Warsaw,
Poland
A height
variation of 120
m is present in
the scene.
Feb. 2006
36 GCPs with 20 cm accuracy &
DTM (20 m grid & 2m accuracy)
4
GeoSystems,
Polska(Mr. J. Zych - PI)
Leibnitz U
RACURS
UCL
8.
TS-10,
Catalonia,
Spain
Coast with flat &
rolling terrain.
Feb. 2006
DEM (15 m grid & 1.1 m accuracy) &
1:5000 scale Orthoimages in 0.5 m
resolution & 0.5 m accuracy
2
DLR (Mr. M Lehner PI)
ETHZ
9.
TS-12,
Sakurajima,
Japan
Island with
mountains
Mar. 2006
Several Aerial laserscan DEMs with
30 cm accuracy
1
ETHZ (Prof A Gruen -
PI)
10.
TS-13, Hobart,
Australia
Island with
mountains having
about 1300 m ht.
variation.
Oct. 2006
69 well-defined GCPs of 0.2 m
accuracy and a 10 m DSM with 4 m
accuracy
1
U Melbourne (Prof. C.
Fraser - PI)
11.
TS-14, SE-
Bavaria,
Germany
Rolling Plains
with forests
Apr. 2007
8 GCPs and a Laser DEM
1
DLR (Mr. M. Lehner -
PI)
Table-1: C-SAP Test Sites, Investigating Agencies, Cartosat-1 Acquisition Dates & Reference Data Sets
Note: # Number of independent investigations
