| Instrument | Agency | Missions | Status | Type | Measurements &
applications | Technical characteristics |
AOLCI
Advanced Ocean and Land Colour Imager | ESA (EUMETSAT) (COM) | Current: -
Future: S3NGO-B, S3NGO-A
Complete: - | Proposed | | Visible and near-infrared hyperspectral radiometer supporting a wide range of Marine, Land, Atmosphere and Climate Services. Provides enhanced continutity of ocean colour and land colour measurements from OLCI and enhanced synergy with ASLSTR |
| Waveband: | All OLCI bands, plus ~200 bands in 340-1020 nm with variable bandwidth (1.25 to 15 nm). Goal of full 340-1020 spectrum at 1.25-nm resolution.
VIS, NIR |
| Spatial resolution: | 150 m (goal 100 m)
Best resolution: 150 m |
| Swath width: | ~1400km (similar to OLCI) |
| Accuracy: | Max relative uncertainties for water reflectance over ocean: 350 to 400 nm: 0.0057 or 20%, 400 to 600 nm: 0.0020 or 5%, 600 to 710 nm: 0.0007 or 10% |
| Data Access: | |
| Data Format: | |
|
COCTS
China Ocean Colour & Temperature Scanner | CAST | Current: HY-1C, HY-1D, HY-1E
Future: HY-1F
Complete: HY-1A, HY-1B | Operational | Ocean colour instruments | Ocean chlorophyll, ocean yellow substance absorbance, Sea-ice surface temperature. |
| Waveband: | B1: 0.402 - 0.422 µm, B2: 0.433 - 0.453 µm, B3: 0.480 - 0.500 µm, B4: 0.510 - 0.530 µm, B5: 0.555 - 0.575 µm, B6: 0.660 - 0.680 µm, B7: 0.740 - 0.760 µm, B8: 0.845 - 0.885 µm, B9: 10.30 - 11.40 µm, B10: 11.40 - 12.50 µm
VIS, NIR, TIR |
| Spatial resolution: | 1.1 km |
| Swath width: | 3083 km |
| Accuracy: | |
| Data Access: | |
| Data Format: | |
|
FLORIS
Fluorescence Imaging Spectrometer | ESA | Current: -
Future: FLEX
Complete: - | Approved | Imaging multi-spectral radiometers (vis/IR) | Mapping vegetation fluorescence to quantify photosynthetic activity. |
| Waveband: | Several bands of the range 500-780 nm, with two types of spectral resolution: Low (1-2 nm) and High (0.1-0.5 nm)
VIS, NIR |
| Spatial resolution: | High spectral resolution of ~0.3 nm around the Oxygen absorption bands. Other spectral areas with less pronounced absorption features will be measured at medium spectral resolution between 0.5 and 3 nm.
Best resolution: 300 m |
| Swath width: | 150 km swath |
| Accuracy: | |
| Data Access: | |
| Data Format: | |
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GEMS
Geostationary Environment Monitoring Spectrometer | KARI, NIER (BATC) | Current: GEO-KOMPSAT-2B
Future: -
Complete: - | Operational | Atmospheric chemistry | Measurements of atmospheric chemistry, precursors of aerosols and ozone in particular, in high temporal and spatial resolution over Asia. |
| Waveband: | 0.30 µm - 0.50µm
UV, VIS |
| Spatial resolution: | 7 x 8 km at Seoul
Best resolution: 3500 m |
| Swath width: | FOR (Field Of Regard) is 5000km x 5000km |
| Accuracy: | |
| Data Access: | Open Access |
| Data Format: | NetCDF |
|
HyMATHS
Hyperspectral Millimetre Wave Atmospheric Temperature & Humidity Sounder | ISRO | Current: -
Future: G20 Satellite
Complete: - | Being developed | Atmospheric temperature and humidity sounders | Measurement of profiles of atmospheric temperature & humidity in 100 Channels |
| Waveband: | 100 Channels, 50-70GHz/118GHz/183.31GHz
|
| Spatial resolution: | 25km (Temperature) & 15 km (Humidity) |
| Swath width: | 1500 km |
| Accuracy: | |
| Data Access: | Open Access |
| Data Format: | TBD |
|
MATHS (Oceansat-3A)
Millimetre Wave Atmospheric Temperature & Humidity Sounder | ISRO | Current: -
Future: OCEANSAT-3A
Complete: - | Approved | Atmospheric temperature and humidity sounders | Measurement of profiles of atmospheric temperature & humidity |
| Waveband: | 14 Temperature Channels 50-60 GHz, 6 Humidity Channels - 183.31 GHz
MW |
| Spatial resolution: | 25km (Temperature) & 15 km (Humidity) |
| Swath width: | 1500 km |
| Accuracy: | |
| Data Access: | Open Access |
| Data Format: | |
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MODIS
MODerate-Resolution Imaging Spectroradiometer | NASA | Current: Terra, Aqua
Future: -
Complete: - | Operational | Imaging multi-spectral radiometers (vis/IR) and ocean colour instruments | Data on biological and physical processes on the surface of the Earth and in the lower atmosphere, and on global dynamics. Surface temperatures of land and ocean, chlorophyll fluorescence, land cover measurements, cloud cover (day and night). |
| Waveband: | VIS - TIR: 36 bands in range 0.4 - 14.4 µm
VIS, NIR, SWIR, MWIR, TIR |
| Spatial resolution: | Cloud cover: 250 m (day) and 1000 m (night), Surface temperature: 1000 m
Best resolution: 250 m |
| Swath width: | 2330 km |
| Accuracy: | Long wave radiance: 100 nW/m2, Short wave radiance: 5%, Surface temperature of land: <1 K, Surface temperature of ocean: <0.2 K, Snow and ice cover: 10% |
| Data Access: | Open Access |
| Data Format: | HDF-EOS |
|
OCI
Ocean Color Instrument | NASA | Current: PACE
Future: -
Complete: - | Operational | Ocean colour instruments | Ocean color slit-grating imaging spectrometer/radiometer for measuring top of atmosphere reflectance which is used to estimate ocean leaving light that contains information on biological components plus aerosol and cloud propertiesl |
| Waveband: | UV-NIR (350 - 800 nm); SWIR (940, 1240, 1378, 1615, 2130 and 2260 nm)
UV, VIS, NIR, SWIR |
| Spatial resolution: | 1 km |
| Swath width: | 2700 km swath |
| Accuracy: | 5nm spectral resolution |
| Data Access: | Open Access |
| Data Format: | CCSDS packets, netCDF |
|
OCM (Oceansat-3)
Ocean Colour Monitor (Oceansat-3) | ISRO | Current: OCEANSAT-3
Future: OCEANSAT-3A
Complete: - | Operational | Ocean colour instruments | Ocean colour data, Estimation of phytoplankton concentration, identification of potential fishing zones, assessment of primary productivity. |
| Waveband: | 13 channel
VIS, NIR |
| Spatial resolution: | 360m |
| Swath width: | 1400 km |
| Accuracy: | |
| Data Access: | Open Access |
| Data Format: | |
|
OLCI
Ocean and Land Colour Imager | ESA (EUMETSAT) (COM) | Current: Sentinel-3 A, Sentinel-3 B
Future: Sentinel-3 C, Sentinel-3 D
Complete: - | Operational | Imaging multi-spectral radiometers (vis/IR) and ocean colour instruments | Marine and land services. |
| Waveband: | 21 bands in VNIR/SWIR
VIS, NIR |
| Spatial resolution: | 300 m
Best resolution: 300 m |
| Swath width: | 1270 km, across-track tilt 12.2 deg to the West |
| Accuracy: | 2% abs, 0.1% rel. |
| Data Access: | Open Access |
| Data Format: | |
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