{'fraction_non_alphanumeric': 0.022289766970618033, 'fraction_numerical': 0.008105369807497468, 'mean_word_length': 5.253164556962025, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Terr'images: A CNES project using Pleiades imagery for secondary schools

During the end of 1990's and the beginning of the first decade 2000, in cooperation with the French Ministry of education, CNES has supported pedagogical activities using SPOT image data. But due to the limit of resolution of SPOT imagery, teachers often used satellite imagery through geographic viewers like Google Earth. But using these kinds of viewers and understanding real capacities of very high resolution imagery is different. Indeed Pleiades satellite offers new capacities in imagery to better understand and manage lands. So CNES just started a new project to study lands, “Terr'images”, an initiative for Pleiades outreach, which is the main topic of this paper. The aim of this new project is to show teachers and pupils how this imagery can improve our knowledge about biodiversity, sustainable agriculture, coastal management, urban sprawling, cartography and aid for natural and human disasters.