AHI

Advanced Himawari Imager

Satellites

Himawari-8, Himawari-9

Status

Being defined - To be utilised in the period: 2014 to ~ 2029

Mission

Multi-purpose imagery for weather watch, NWP utilization and environment monitoring; and wind derivation by tracking clouds and water vapour features

Instrument type

Multi-purpose imaging VIS/IR radiometer - 16 channels: see requirements in the table below

Scanning technique

N/A (GEO)

Coverage/cycle

Full disk in 10 min.  Limited areas in proportionally shorter intervals

Resolution (s.s.p.)

From 0.5 km to 2 km, depending on spectral band - See table

Resources

Mass: … kg  -  Power: … W  -  Data rate: … Mbps

Central wavelength

Bandwidth

Radiometric accuracy (SNR )

0.46 mm

< 0.0750 mm

>300 @ 100 % albedo

1.0 km

0.51 mm

< 0.0625 mm

>300 @ 100 % albedo

1.0 km

0.64 mm

< 0.1250 mm

>300 @ 100 % albedo

0.5 km

0.86 mm

< 0.0875 mm

>300 @ 100 % albedo

1.0 km

1.6 mm

< 0.075 mm

>300 @ 100 % albedo

2.0 km

2.3 mm

< 0.063 mm

>300 @ 100 % albedo

2.0 km

3.9 µm

< 0.500 mm

< 0.16 @ 300 K

2.0 km

6.2 µm

< 1.038 mm

< 0.40 @ 240 K

2.0 km

7.0 µm

< 0.500 mm

< 0.10 @ 300 K

2.0 km

7.3 µm

< 0.688 mm

< 0.32 @ 240 K

2.0 km

8.6 µm

< 0.500 mm

 < 0.10 @ 300 K

2.0 km

9.6 µm

< 0.475 mm

 < 0.10 @ 300 K

2.0 km

10.4 µm

< 0.875 mm

 < 0.10 @ 300 K

2.0 km

11.2 µm

< 1.000 mm

 < 0.10 @ 300 K

2.0 km

12.3 µm

< 1.250 µm

 < 0.10 @ 300 K

2.0 km

13.3 µm

< 0.750 mm

 < 0.30 @ 300 K

2.0 km