Sentinel-2
Sentinel-2, which is the main source of EO data for the Sentinel-2 for Agriculture project, is one of the 5 missions that ESA is developing in the frame of Europe’s Copernicus programme.
This land monitoring mission consists of a pair of satellites, carrying each one an optical payload with visible, near infrared and shortwave infrared sensors, providing continuity for the former Spot and Landsat missions. Both sensors will include 13 spectral bands (4 bands at 10 m, 6 at 20 m and 3 at 60 m) with a 290 km swath, providing continuity for the current Spot and Landsat missions.
Sentinel-2, with its final two units in operation, will reach a revisit time of 5 days at the equator and 2–3 days at mid-latitudes. The first of them, Sentinel-2A, was launched on 23 June 2015, whereas Sentinel-2B was launch on 7 March 2017.
For more information about Sentinel-2 please visit:
Landsat 8
Landsat 8 It is the eighth satellite in the Landsat program. It was launched on February 11, 2013 as the Landsat Data Continuity Mission.
It includes a push-broom Operational Land Imager (OLI) and a Thermal Infrared Sensor (TIRS):
- OLI collects data with a spatial resolution of 30 meters in the visible, near-IR, and SWIR wavelength regions, and a 15-meter panchromatic band, which provides data compatible with products from previous missions. OLI also contains a deep blue band for coastal-aerosol studies and a band for cirrus cloud detection;
- The TIRS contains two thermal bands acquired respectively at 100 and 120 meters, then resampled at 30 meters for co-registration with the OLI data, which were designed to allow the use of split-window surface temperature retrieval algorithms.
For more information about Landsat 8 please visit the Landsat missions website.
