Full Name Geosynchronous Littoral Imaging and Monitoring Radiometer (GLIMR) Status Being developed
Instrument Agencies NASA Maturity
Instrument Type Ocean colour instruments Geometry Nadir-viewing
Instrument Technology Multi-purpose imaging Vis/IR radiometer Sampling Imaging
Data Access Data Format
Measurements and Applications GLIMR 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 America
Resolution Summary 300 m
[Best Resolution: 300m]
Swath Summary FOV: 20.8° N-S and E-W
Accuracy Summary Landmark imaging capability for geolocation reconstruction of science data to within 33% of the local ground sample distance (LGSD). Spectrometer pointing line of sight stability of 20% of the LGSD.
Waveband Summary UV-VIS-NIR: 350-1020 nm at 5 nm sampling
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
Measurements Overview
Multi-purpose imagery (ocean)Ocean imagery and water leaving spectral radiance
Ocean colour/biologyOcean chlorophyll concentration
Ocean suspended sediment concentration
Color dissolved organic matter (CDOM)
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Ocean Colour click here click here search ECV Inventory records
Instrument Missions
GLIMR - Geosynchronous Littoral Imaging and Monitoring Radiometer (2026 - 2030)