True-color corrected reflectance image of Poniente Almeriense, in Almeria, Spain on 18 September 2021. This area of southeastern Spain is also known as the "Mar de plástico" (Sea of Plastic) due to the vast number of greenhouses across the region. These greenhouses are made from polyethylene plastic fastened to wooden posts or metal structures, and results in the prevalent white appearance of the region. The largest cities in the area are El Ejido and Roquetas de Mar. Roquetas de Mar is on the eastern side of the area along the shore, and El Ejido is visible as the brown patch within the sea of plastic.
This image was acquired by the Operational Land Imager (OLI), aboard the joint NASA/USGS Landsat 8 satellite. It is available in NASA's Worldview as a part of the Harmonized Landsat Sentinel-2 (HLS) project which provides 30 meter resolution true color surface reflectance imagery from the Operational Land Imager (OLI) instrument aboard Landsat 8, and the Multi-Spectral Instrument (MSI) aboard the European Space Agency Sentinel-2A and -2B satellites. The data from the two instruments aboard the three satellites are processed through a set of algorithms to make the imagery consistent and comparable across the instruments. This includes atmospheric correction, cloud and cloud-shadow masking, spatial co-registration and common gridding, illumination and view angle normalization, and spectral bandpass adjustment.
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