White Papers

Benefits of SWIR

Issue link: https://read.uberflip.com/i/1372342

Contents of this Issue

Navigation

Page 1 of 2

info@maxar.com maxar.com Whether called a forest fire, bush fire or wildfire, uncontrolled fires have a devastating impact on communities and natural resources. Wildfires can cover extensive areas, move at incredible speeds and change direction without notice. Fast and effective detection is key to protecting infrastructure and ensuring communities' safety.A critical factor in being able to respond to wildfires is to have information about the location and severity in a timely manner. With the agility and spectral depth of WorldView-3, getting this information has never been easier. The unique SWIR bands not only penetrate smoke, allowing for a clear view of the ground, but they also pinpoint sites of active burning so that response efforts can be directed most efficiently. Wildfire response As the world focuses on increasing global food security, it is critical to improve small farm productivity and yield while decreasing costs, minimizing the environmental impact with precision agriculture practices and better managing agriculture production and associated inventory. It is important to take corrective action early in the growing season by understanding crop conditions such as crop health and stress due to problems such as nutrient deficiency, moisture stress and pests.WorldView-3 data is uniquely designed to observe and map these phenomena. Crop stresses change the green chlorophyll content of the leaves and replace them with carotenoids that have yellow and red colors, identifiable in the EMS. In addition, SWIR bands are used to assess crop moisture, as another health indicator. Observing soil types and conditions before, during and aer a crop season is important for managing crop health. WorldView-3 offers a window into underlying soil conditions and how such conditions might affect vegetation. One of the agricultural community's best management practices relates to how much post-harvest crop residue is le on a field. Crop residue preserves soil moisture and prevents soil erosion during rainy months. SWIR spectral bands can be used to map and quantify how much crop residue is le behind, predicting the soil quality for future crops. Food security WORLDVIEW-3 8 BAND IMAGERY WORLDVIEW-3 SWIR imagery can see through smoke to detect and measure where fires are currently burning and what has already burned BENEFITS OF SWIR WorldView-3's spectral bands allow for unique mineral identification and chemical measurements. Energy from light is either transferred to molecules of matter or reflected away from them. Based on the mineral content, different materials absorb specific wavelengths of light and reflect others. Electronic absorptions in the SWIR wavelengths are can be used for detecting materials containing anion groups such as Al-OH, Mg-OH, Fe-OH, Si-OH, carbonates, ammonium and sulphates–many of which are indicator minerals in the mining industry. Exposed outcrops are manifestations of potential mineral ores or sub-surface deposits. While the geology and mining industries spend millions of dollars to identify potential mining sites during their exploration phase, WorldView-3 SWIR data can cut costs and increase efficiency by narrowing the potential area before field verification is planned. Mining/Geology

Articles in this issue

Links on this page

view archives of White Papers - Benefits of SWIR