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
