Each year Russia loses two million hectares of forest as a result of catastrophic fires. According to official statistics, nine out of ten wildfires in the country are caused by humans. To investigate the role human activity plays in forest fires, Greenpeace mapping experts conducted this analysis of major wildfires across Siberia in 2018. GIS specialists analysed satellite imagery to identify cases where wildfires were spatially linked to man-made objects such as roads, logging, settlements, or prescribed burnings.
In France, the AASQAs, the official associations in charge of air pollution surveillance (gathering government, civil society, environment/health experts and private members), launched an opendata platform in september 2018 (AASQA, 2018). This platform allows all internauts to download a large panel of air pollution data like annual mean models of NO2/PM10/Ozone or peak pollution incidents.
This map shows clusters of hotspots of the day (last 24 hours) provided by VIIRS sensor on Suomi-NPP satellite with a spatial resolution of 375 m. Each red dot represents a center of a 1 km area in radius, with more than 3 detected thermal anomalies. In real life a hotspot typically means fire, although occasionally it can be any thermal anomalies, such as lava or gas flares (refineries, oil rigs, etc). Such map doesn’t show reasons of fires but almost all of them are man-made (exceptionally they could be caused by dry lightning, volcano or meteorite).
IFLs have high conservation value and are critical for stabilizing terrestrial carbon storage, harboring biodiversity, regulating hydrological regimes, and providing other ecosystem functions. The first global IFL map was prepared in 2006 (for circa 2000), which we updated in 2014 (for circa 2013) and in 2017.
Cataloging a forest as “Primary” can only be done in the field studies, however an estimation of the location and extent of these forests can be done using GIS and remote sensing techniques. The purpose of this first analysis based on Sentinel-2 multispectral satellite images is to evaluate the state of the forests, in order to eliminate the degraded areas in order to define and create an hierarchy for the next stages of documentation and final ground evaluation.
Our map is a tool which helps you find out the average air pollution figures for any hour, day or another period of time since July 5, 2017. Using the map, you can see how the concentration of any of the 15 pollutants changes over the course of the day as well as check at what hours and in what areas of the city the air is most polluted.
This coms material aims to discover, thanks to a dynamic mapping tool, Total’s ambitions to drill off the coast of Brazil and the risks associated with this project. It allows our audiences to understand and locate the issues and the various impacts this industrial project could have on local population and natural habitats.