Open Data and Sensing Resource

OpenKIWAS-Unique-Identifier:
opendata-EO-0003

Source organisation:
CERTH

Name:
Sentinel 3

Type:
Earth Observation Satellite (SLSTR & OLCI instruments)

Area:
Global coverage (focus on land and ocean monitoring)

Quality:
High-quality data from advanced remote sensing instruments (SLSTR & OLCI)

Availability:
Free and open access via Copernicus Dataspace Ecosystem

Update frequency:
Daily (with near real-time data for specific products)

Legal restrictions:
Open data policy under the Copernicus program

Description:
Sentinel-3 provides data for monitoring sea and land surface temperature, ocean color, and vegetation, as well as for supporting environmental and climate monitoring. The mission includes instruments like the SLTR (Sea and Land Surface Temperature Radiometer) and OLCI (Ocean and Land Colour Instrument).

Variable(s):
SLSTR Bands (Thermal Infrared & Visible): - Bands 1-3: Visible (0.55–1.60 µm) - Bands 4-9: Thermal Infrared (3.75–12.00 µm) OLCI Bands (Ocean and Land Color): - Bands 1-3: UV and Blue (400–500 nm) - Bands 4-10: Green, Yellow, Red, and Red Edge (510–780 nm) - Bands 11-16: Near Infrared and Shortwave Infrared (865–1650 nm)

Spatial coverage:
Global (including oceans, land, and coastal areas)

Spatial resolution:
SLSTR: 500 m (for SST and LST); OLCI: 300 m (for ocean color products)

Temporal coverage:
2016–Present (Sentinel-3A launched in 2016, Sentinel-3B in 2018)

Temporal resolution:
Daily (with repeat orbiting, high revisit frequency)

Resource:
Copernicus Data Space Ecosystem , https://dataspace.copernicus.eu/

API Protocol:
The Copernicus Data Space Ecosystem catalogue is a web service that can be queried through 4 REST protocols - OData - STAC - OpenSearch - Sentinel Hub Catalog API

Limitations:
Temporal gaps during specific passes; large data volumes requiring significant storage and processing power