ENVISAT MERIS Global Mapped CyAN Project, True Color (TC) Data, version 5.0

Cyanobacteria Assessment Network (CyAN) is a multi-agency project among EPA, the National Aeronautics and Space Administration (NASA), the National Oceanic and Atmospheric Administration (NOAA), and the United States Geological Survey (USGS) to support the environmental management and public use of U.S. lakes and estuaries by providing a capability of detecting and quantifying cyanobacteria algal blooms. This effort has resulted in the production of satellite remote sensing products using the cyanobacteria index (CI) algorithm to estimate cyanobacteria concentrations (CI_cyano) in lakes across the contiguous United States (CONUS) and Alaska. The Merged S3 product combines Sentinel-3A and Sentinel-3B OLCI data.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 13, 2026, 19:05 (UTC)
Created April 1, 2025, 15:39 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 28eadd55-3071-4bc6-9431-763fbb26013e
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/ENVISAT/MERIS/L3M/CYAN/TC/5
license https://www.usa.gov/government-works
modified 2026-04-06T22:16:00Z
programCode {026:000}
publisher OBPG;NASA/GSFC/SED/ESD/GCDC/OB.DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 9a4fee81362d30f21d98c6943856ddb7cf67d6882cb4e5c23bf012d89b246411
source_schema_version 1.1
spatial [[{"SouthBoundingCoordinate":-90,"NorthBoundingCoordinate":90,"EastBoundingCoordinate":180,"WestBoundingCoordinate":-180}],"GEODETIC"]
temporal 2002-03-21/2012-05-09
theme {"Earth Science"}