Color Dissolved Organic Matter (Cdom) Measurement Instruments

Measurements > Ocean > Ocean colour/biology > Color dissolved organic matter (CDOM)
Measurement Definition: Former name: “Yellow substance absorbance”. Parameter extracted from ocean colour observation. Indicative of biomass undergoing decomposition processes. Requested in both open ocean and coastal zone - Physical unit: [ m-1 ] - Accuracy unit: [ % ] at a specific concentration (e.g., 1 m-1).
InstrumentStatus/
Accuracy		Instrument DescriptionMeasurement TechnologyTimeline
HSI-2 (HJ-2A)OperationalHyperspectral measurements for environment and disaster management operations.Multi-purpose imaging Vis/IR radiometer
MERSIOperationalMeasurement of vegetation indexes and ocean colour.Multi-purpose imaging Vis/IR radiometer
MERSI-2OperationalMeasurement of vegetation indexes and ocean colour.Multi-purpose imaging Vis/IR radiometer
MERSI-3OperationalMeasurement of vegetation indexes and ocean colour.Multi-purpose imaging Vis/IR radiometer
MERSI-LLOperationalMeasurement of vegetation indexes and ocean colour.Multi-purpose imaging Vis/IR radiometer
MERSI-SOperationalMeasurement of vegetation indexes and ocean colour.Multi-purpose imaging Vis/IR radiometer
MODISOperationalData 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).n/a
OCIOperationalOcean 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 propertiesln/a
OLCIOperationalMarine and land services.n/a
SGLIOperational
+/-100 %
Medium resolution multi-spectral imaging of land, ocean and atmosphere. SGLI-VNR is an optical sensor capable of multi-channel nadir observation at wavelengths from near-UV to NIR and forward or backward polarization observation at red and near infrared wavelengths (Push-broom scanning). SGLI-IRS is an optical sensor capable of multi-channel nadir observation at wavelengths from SWIR to TIR wavelengths (Cross-track scanning).n/a
AOLCIBeing developedVisible 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 ASLSTRn/a
GLIMR InstrumentBeing developedGLIMR will make observations of rapidly evolving phytoplankton dynamics and hazards such as Harmful Algal Blooms (HABs) and oil spills in the Gulf of Mexico and other selected coastal regions of North and South AmericaMulti-purpose imaging Vis/IR radiometer
HSIBeing developedPushbroom-type grating Imaging Spectrometer with high Signal-to-noise Ratio and data uniformity to derive quantitative surface characteristics supporting the monitoring, implementation and improvement of a range of policies in the domain of raw materials, agriculture, soils, food security, biodiversity, environmental degradation and hazards, inland and coastal waters, snow, forestry and the urban environmentn/a
FLORISApprovedMapping vegetation fluorescence to quantify photosynthetic activity.n/a
NIR-SWIRApprovedOcean Colour - Open ocean, coastal & in-land waters. Atmospheric correctionsn/a
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