 |
 |
 |
SCIAMACHY MEASUREMENT MODES |
 |
|
 |
SCIAMACHY measures in three viewing geometries: Nadir, Limb, and Occultation.
|
|
|
|
|
|
|
|
|
|
|
 |
Global Coverage
|
 |
With its orbital period of about 100 minutes, SCIAMACHY is able to observe the whole Earth. Global coverage at the equator is achieved within 6 days when using the standard alternating Limb/Nadir scan option. Using only Nadir or Limb modes global coverage is achieved within 3 days (for 960 km swath width).
|
 |
Because of the "dynamics scan mode" global coverage goes in line with a rather "local" spatial resolution for PMD measurements and special wavelength ranges. Therefore, the vertical profiles of temperature and several long-lived trace constituents are measured at high spatial resolution.
|
 |
Details on the SCIAMACHY instrument operations concept can be found at the SOST Website.
|
|
|
|
|
Geometrical FOV |
Coverage |
Typ. Spatial Resolution |
Nadir |
along track |
25 km |
continuous |
30 km |
|
across track |
0.6 km |
+/- 480 km |
60 km |
Limb |
azimuth |
110 km* |
+/-460 km* |
250 km* |
|
elevation |
2.5 km* |
0 - 200 km* |
3 km* |
Solar Occultation |
azimuth |
40 km* |
N.A. |
30 km* |
|
elevation |
2.5 km* |
0 - 200 km* |
2,5 km* |
|
|
* at tangent point |
|
|
|