HIGH RESOLUTION OPTICAL DATA Sentinel 2 Sentinel2 Level

HIGH RESOLUTION OPTICAL DATA

Sentinel 2 • Sentinel-2 Level 1 C data are expressed in reflectance with a scaling factor, not in radiance. You have to divide by 10000 to get the reflectance. In the preliminary products shown this autumn, you had to divide by 1000 • The scaling factor is given in the xml file at the root of the product directory. • Access: - https: //scihub. copernicus. eu/

Sentinel 2 10 m Band resolutions SENTINEL-2 10 m spatial resolution bands: B 2 (490 nm), B 3 (560 nm), B 4 (665 nm) and B 8 (842 nm)

Sentinel 2 20 m Band resolutions SENTINEL-2 20 m spatial resolution bands: B 5 (705 nm), B 6 (740 nm), B 7 (783 nm), B 8 a (865 nm),

Sentinel 2 60 m Band resolutions SENTINEL-2 60 m spatial resolution bands: B 1 (443 nm), B 9 (940 nm) and B 10 (1375 nm)

BAND COMBINATIONS (COMPARISION 7, 3, 2 Landsat 7 TM 5. 4. 3 Sentinel 2

COLOR COMPOITES

COLOR COMPOSITE – PORT OF MOMBASA

Unsupervised classification

Shallow water habitats – Kilifi County

Shallow water habitats – Shimoni

LANDSAT 8 Operational Land Imager (OLI)

Spectral adaptations

ACCESSING LANDSAT IMAGES https: //earthexplorer. usgs. gov/

GEBCO PRODUCTS https: //www. gebco. net/data_and_products/gridded_bathymetry_data/

DIGITAL ELEVATION MODELS https: //earthexplorer. usgs. gov/

Software resources for mapping • ILWIS - https: //www. itc. nl/ilwis/download/ilwis 33/ • QGIS - https: //qgis. org/en/site/forusers/download. html • ENVI - https: //www. harrisgeospatial. com/Support/Forums/aft/4769 • ERDAS https: //download. hexagongeospatial. com/en/downloads/imagine/er das-imagine-2015 -64 -bit • IDRISI - https: //clarklabs. org/terrset/idrisi-gis/