CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements > Atmosphere >
Aerosols >
Volcanic ash


Measurement Definition*: The location of a volcanic ash cloud. [Unit of measurement – Lat/Long]
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
ABI
Advanced Baseline Imager
Operational
Detects clouds, cloud properties, water vapour, land and sea surface temperatures, dust, aerosols, volcanic ash, fires, total ozone, snow and ice cover, vegetation index.n/a
ACDL
Aerosol and Carbon Detection Lidar
Operational
For CO2 a pulsed dual-wavelength lidar alternately emits two pulsed lasers near 1572 nm in a sequential manner one in the CO2 absorption line and one off the line. For aerosol detection a high spectral resolution lidar (HSRL) at 532 and 1064 nm.n/a
AHI
Advanced Himawari Imager
Operational
Measures cloud cover, cloud motion, cloud height, cloud properties, water vapour, rainfalll, sea surface temperatures and Earth radiation, dust, aerosols, volcanic ash, fires, snow and ice cover.n/a
AMI
Advanced Meteorological Imager
Operational
Continuous monitoring capability for the near real-time generation of high-resolution meteorological products and long-term change analysis of land/sea surface temperature and cloud coverage.n/a
AVHRR/3
Advanced Very High Resolution Radiometer/3
Operational
Measurements of land and sea surface temperature, cloud cover, snow and ice cover, soil moisture and vegetation indices. Data also used for volcanic eruption monitoring.n/a
DPC-2
Directional Polarization Camera - 2
Operational
To measure aerosol and cloud microphysical parameters and the Bidirectional Reflectance Distribution Function (BRDF)n/a
FCI
Flexible Combined Imager
Operational
Measurements of cloud cover, cloud top height, precipitation, cloud motion, vegetation, radiation fluxes, convection, air mass analysis, cirrus cloud discrimination, tropopause monitoring, stability monitoring, total ozone and sea surface temperature.n/a
HSI
Hyperspectral Imager
Operational
Detailed monitoring and characterization of rock and soil targets, vegetation, inland and coastal waters on a global scale.n/a
HYC
HYperspectral Camera
Operational
Hyperspectral data for complex land ecosystem studies.n/a
IASI
Infrared Atmospheric Sounding Interferometer
Operational
Measures tropospheric moisture and temperature, column integrated contents of ozone, carbon monoxide, methane, nitrous oxide and other minor gases which affect tropospheric chemistry. Also measures sea surface and land temperature.n/a
OLCI
Ocean and Land Colour Imager
Operational
Marine and land services.n/a
ACX
GeoXO Atmospheric Composition Instrument
Being developed
 n/a
GXI
GeoXO Imager
Being developed
Detects clouds, cloud properties, water vapour, land and sea surface temperatures, dust, aerosols, volcanic ash, fires, total ozone, snow and ice cover, vegetation index.n/a
HYC2
HYperspectral Camera 2
Being developed
Hyperspectral data for complex land ecosystem studies.n/a
IASI-NG
Infrared Atmospheric Sounding Interferometer - New Generation
Being developed
Measures profiles of atmospheric temperature, humidity, ozone, carbon monoxide, columns of methane, nitrous oxide, and other minor gases, and sea, ice, and land surface temperature and emissivity. Provides information on aeorols and cloud: fractional coverage, phase, cloud top height (input to Polar AMVs) and particle size. Prime applications: NWP, AC/AQ, climate. Secondary applications: NWC, land/ocean surface monitoring. IASI-NG will resume IASI role as internationl standard for satellite inter-calibration (GSICS).n/a
METimage
Multi Spectral Imager
Being developed
Operational multi spectral imager for meteorological EPS-SG VIS/IR Imaging Mission (VII): imagery data for global and regional NWP, NWC, and climate monitoring with information on LST, SST, clouds coverage, height and micro-physics, land surfaces (vegetation, snow/ice, fire), water vapour column, aerosol and atmospheric motion vectors. Provides collocated cloud mask, height & characterisation as well as intra-pixel heterogeneity to other EPS-SG missions (with larger footprint).n/a
GHMI
Geostationary HiMawari Imager
Approved
 n/a
* Description adapted from WMO.