1207 
* EiMpli rf aaludau far Miolioa af ^crfimiacH 
(I) imags , (2) «Mt (with, (3) |U>aI »•^Uriaf 
j M m mir, ai 
Table 1 : ESA/EUMETSAT future systems diaracterlslics 
[ RuMomtiy 
Geometry 
Spatial rnolutinn : tn both direction» 1.15 km at nadir, pnmmnm variations lor off-nadir observations 
FltU of ito a : mammim off-nadir observation angle of about 50.5* (-3200 km swath width) 
Oaamatilc anmaanlaa : 
local dlatoruon : leaa than 0 J pfarel 
location accuracy : better than 1000m desired. 2000m specified 
muluapeetnl registration : slgruhcanthr better than 0.3 ptsel 
Spatial eo»siags : about 90% of the equatorial area» are imaged each day. the remaining 10 H being 
imaged the next day. For latitudes higher than 35* (North and South), all regions are acquired at least 
once a day. 
Operation specifications 
Equator crossing thus (descending node) t 10:30 local solar tone 
Image transmission : A11 spectral bands at full spatial resolution acquired on terrestrial areas will be 
stored onboard in a solid state metnorv. allowtng the use of only one recemng station to which data 
»Ml be transmitted tn X band. All the spectral bands «nil also be transmuted in band 1- for possible 
local receiving stations 
Central 
Band width 
Polarization 
High 
Low 
Main mission 
Wavelength 
(nm) 
dynamic 
dynamic 
443 nm 
20 
no 
0 - 0.22 
0 
0.22 
Ocean color 
443 nm 
20 
yes 
0- 1.1 
0 
• l.l 
Aerosols. ERB 
490 nm 
20 
no 
0-0.17 
0 
0.17 
Ocean color 
565 nm 
20 
no 
0-0.11 
0 
0.11 
Ocean color 
665 nm 
20 
yes 
0- 1.1 
0 
0.25 
Vegetation, aerosols. ERB 
763 nm 
10 
no 
0- l.l 
0 
0.25 
Cloud top pressure 
765 nm 
40 
no 
0- l.l 
0 
0.25 
Aerosols. CTP 
865 nm 
40 
yes 
0- l.l 
0 
0.25 
Vegetation, aerosols. ERB 
910 nm 
20 
no 
0- l.l 
0 
0.25 
Water-vapor amount 
Tnlile 3 : Characteristics of (lie spectral Itumls selected for POI.DEIt/ADEOS. 
Two angles viewing 
Wavelength 
0 and 45° 
3 7 pm 
8 5 - 9 pm 
10 5 - 115 pm 
11 5 - 12 5 pm 
(14-2 pm 
(along or across track) 
Emissivity (rellectivily) 
Restrahlung 
Split-Window 
Split-Window 
Cloudiness. Rn. Albedo 
Swnlli 
10 to 40 km 
Repentilivily 
3 days 
l ime pass 
10 to 14 Z 
Spatial resolution 
40 m 
Radiometric resolution 
NED! = 0.1 K 
at 290K 
Accuracy 
T 0.5 K : l.ocntion 500 in 
Table 4 : IIISIJTE mniii clinrnclerisllcs 
Tnlile 1 : VEGETATION/SPOT 4 clmraclei iillrs