LEARNING HARMONISED PLEIADES AND SENTINEL-2 SURFACE REFLECTANCES

Li abundance/surface activity connections in solar-type Pleiades

The relation between the lithium abundance, ALi, and photospheric activity of solar-type Pleiads is investigated for the first time via acquisition and analysis of B and V-band data. Predictions of activity levels of target stars were made according to the ALi/(B − V) relation and then compared with new CCD photometric measurements. Six sources behaved according to the predictions while one sta...

Data Service Platform for Sentinel-2 Surface Reflectance and Value-Added Products: System Use and Examples

This technical note presents the first Sentinel-2 data service platform for obtaining atmospherically-corrected images and generating the corresponding value-added products for any land surface on Earth. Using the European Space Agency’s (ESA) Sen2Cor algorithm, the platform processes ESA’s Level-1C top-of-atmosphere reflectance to atmospherically-corrected bottom-of-atmosphere (BoA) reflectanc...

Proposal for Harmonised Classification and Labelling

Improved Co-Registration of Sentinel-2 and Landsat-8 Imagery for Earth Surface Motion Measurements

The constellation of Landsat-8 and Sentinel-2 optical satellites offers opportunities for a wide range of Earth Observation (EO) applications and scientific studies in Earth sciences mainly related to geohazards. The multi-temporal co-registration accuracy of images provided by both missions is, however, currently not fully satisfactory for change detection, time-series analysis and in particul...

Sentinel-1 Land Surface Parameter Applications

The availability of reliable land surface information is crucial for a wide range of applications such as environmental monitoring including essential climate change variables, or agroeconomical aspects for a sustainable land management. Compared to optical remote sensing data, radar sensors can provide datasets with regular coverage of a specific area without suffering from missing images beca...