BackForwardInstrument:  JAMI 

Instrument details
Acronym JAMI
Full name Japanese Advanced Meteorological Imager
Purpose Multi-purpose imagery and wind derivation by tracking clouds and water vapour features
Short description
  • 5 channels [see detailed characteristics below]
  • Information on monitoring and calibration here
Background

Consolidated technology

Scanning Technique

Mechanical, 3-axis stabilised satellite, E-W continuous, S-N stepping

Resolution 4.0 km for IR channels; 1.0 km for the VIS channel
Coverage / Cycle Full disk every 30 min.  Half disk every 15 min.
Mass 166.3 kg Power 152 W Data Rate 2.7 Mbps

 

Providing Agency JMA
Instrument Maturity Flown on operational programme
Utilization Period: 2005 to 2015
Last update: 2024-09-30
Detailed characteristics
Central wavelength Spectral interval SNR or NEΔT @ specified input
0.725 µm 0.55 - 0.90 µm 6.5 @ 2.5 % albedo
3.75 µm 3.50 - 4.00 µm 0.18 K @ 300 K
6.75 µm 6.50 - 7.00 µm 0.18 K @ 300 K
10.8 µm 10.3 - 11.3 µm 0.15 K @ 300 K
12.0 µm 11.5 - 12.5 µm 0.18 K @ 300 K
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Earth observation instrument
  • Passive optical radiometer or spectrometer
  • Moderate resolution optical imager
WIGOS Subcomponents
  • Subcomponent 1
  • Multi-spectral VIS/IR imagery With rapid repeat cycles [in GEO]
  • Multi-spectral VIS/IR imager with rapid repeat cycles [in GEO]
Mission objectives
Primary mission objectives
  • Cloud cover
  • Cloud top height
  • Cloud top temperature
  • Cloud type
  • Integrated Water Vapour (IWV)
  • Wind (horizontal)
Evaluation of Measurements