Space meteorological system Meteor-3 presently operating in Russia provide
possibilities for acquiring data for hydrometeorological and helio/geophysical
support as well as global environmental monitoring. System's spacecrafts
are located on near-polar circular orbits (hight approx. 1200 km,
inclination 82,5°).
Weather Satellite Meteor-3 Permanent Onboard Equipment
|
Instrument
|
Spectral Band,
um
|
Ground Resolution,
km
|
Swath Width,
km
|
Operating Schedule
|
|
Scanning TV-sensor with on-board data recording system for global
coverage mode
|
0.5-0.8
|
0.7x1.4
|
3100
|
recording, direct transmission
|
|
Scanning TV-sensor for automatic data transmission mode
|
0.5-0.8
|
1x2
|
2600
|
direct transmission
|
|
IR-radiometer for global coverage and direct data transmission modes
|
10.5-12.5
|
3x3
|
3100
|
recording, direct transmission
|
|
Scanning 10-channel IR-radiometer
|
9.65-18.7
|
35x35
|
*400
|
recording, direct transmission
|
|
Radiation Measuring System
|
0.17-600 MeV
|
-
|
-
|
recording, direct transmission
|
|
Radiochannel
|
466.5 MHz - data transmission to control centers
137.850 MHz - data transmission to local acquisition stations
|
The scientific instrument package onboard the Meteor-3 spacecraft
provides for regular instant acquisition of images of cloudiness and Earth
surface in visible and infra-red bands, data on air temperature and humidity,
sea surface temperature and clouds temperature. Acquired data on corpuscular
and X-ray irradiance and total emitted radiation energy are supplied to
geophysical division. The ozone layer is being monitored.
Beyond regular scientific hardware, the Meteor-3 spacecrafts are often
equipped with experimental and research instruments. The Meteor-3 satellite No.5,
which was launched Aug.15,1991, carries still operating scanning spectrometer
for global ozone distribution mapping (TOMS instrument, developed and produced
by NASA). Instrument parameters:
6 spectral channels in UV spectral band
(312.5; 317.5; 331.3; 339.8; 360.0; 380.0 nm);
ground resolution 63x63 sq. km in nadir; 83x83 sq. km average;
swath width approx. 2900 km.
The Meteor-3 spacecraft No.8 carries the NASA-produced instrument SAGE-II to
monitor distribution of aerozoles, ozone, water vapor, carbon dioxide, and
spectrophotometer. SAGE-II instrument operates in 7 spectral bands
(385, 448, 452, 525, 600, 936 and 1020 nm) and allows for restoration of
vertical profile of atmospheric components with vertical resolution 1 km
in altitude span 10-40 km, using absorbtion method based on attenuation of direct
solar radiation passing through the Earth atmosphere.
Spectrophotometer SFM-2 performs registration using absorbtion method in 4
channels in frequency band 0.25-0.6 um and allows for restoration of
vertical ozone profile with resolution approx. 5 km up to 80-km altitude.
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