NASA’s provision of the European Space Agency’s (ESA) European Remote Sensing satellites (ERS-1 and ERS–2) Synthetic Aperture Radar (SAR) data archive via the ASF DAAC is free and open by agreement between NASA and ESA. As part of the Earth observation Heritage Data Program (LTDP+), the ERS-1 and -2 missions provide scientists with historically accurate and easily accessible information to help further understand the dynamics of our planet.
ASF holds a subset of all ERS data.
ERS-1 Dataset Summary
ERS- 1 primarily collected high resolution imagery within the ASF and the McMurdo, Antarctica, station masks. The datapool contains ASF standard beam odd frames, as well as the first and last frame of each imaged swath. ERS 1 flew in tandem with ERS-2 for 9 months in 1995/1996. Both sets of data are suitable for interferometry.
| Dataset Property | Value |
|---|
| Temporal Coverage | 1991 – 2000 |
| Repeat Cycle | 35 days |
| Spatial Coverage | Primarily imagery within the ASF and the McMurdo, Antarctica, station masks |
| Center Frequency | 5.3 GHz/C-band 5.6 cm |
| Polarization | Single Polarization (VV) |
| Spatial Resolution | 26 m in range (across track)
Between 6 m and 30 m in azimuth (along track) |
| Swath Width | 100 km |
| Off-Nadir Angle | 21° |
| File format | CEOS |
| Provider | ESA |
| Date published: | 1991 |
| Read more: | Click to read more on the ESA website |
ERS-1 Mission phases
The ERS-1 mission phases are listed below. For more information on each phase, see the Delft University of Technology website, which retrieved the information originally from ESA/ESRIN:
A. Commissioning Phase: 25-Jul-91 to 10-Dec-91
B. Ice Phase: 28-Dec-91 to 30-Mar-92
R. Roll Tilt Mode Campaign: 4-Apr-92 to 13-Apr-92
C. Multidisciplinary Phase: 14-Apr-92 to 21-Dec-93
D. Second Ice Phase: 23-Dec-93 to 10-Apr-94
E. First Geodetic Phase: 10-Apr-94 to 28-Sep-94
F. Second Geodetic Phase: 28-Sep-94 to 21-Mar-95
G. Tandem Phase: 21-Mar-95 to 5-Jun-96
Downloadable Products ERS-1:
Level 0 (unprocessed/raw data)
Level 1 (amplitude — processed images)
