Illegal mining in Latin America has had devastating effects on forests and river channels, leading to negative downstream impacts on the health of local people, flora and fauna. The increase in the international price of gold has spurred the spread of illegal mining, attracting thousands to the region. The main problem with illegal mining is the indiscriminate and irresponsible use of elements such as mercury and cyanide, which are poisonous and endanger the environment.
ENVI LiDAR is an interactive geospatial software environment that lets you create realistic 3D visualizations and easily extract important features and products from raw LiDAR point cloud data. The elevation information contained within LiDAR can be used to create Digital Elevation Models or be included in your geospatial products like line-of-sight or right-of way analyses. ENVI LiDAR can also be customized with the API to meet the unique needs of your organization.
In the early stage, the glacier studies depended on compulsory field surveys by glaciologists. To acquire sufficient and reliable measuring data, researchers are obliged to travel to distant glaciers, which are usually located in mountainous areas with highly hazardous environments. However, the collection of measuring field data can be conducted at dozens of positions at specific time points, which greatly depends on the weather condition and the situation of accessibility and takes much time and money. Therefore, obtaining reliable measurement data on a large-scale glacier has long been a difficult task . To address this problem, remote sensing technology started to be an eligible and cost-effective solution in the past decades . Remote sensing data, especially those acquired by space-borne platforms, provide high-resolution, reliable, large-scale, and chronological measurements in an efficient manner, which have proven to be the most adequate data sources for monitoring glaciers. There is a wide range of remote sensing data of different characteristics, sensors, and imaging modes. Among various remote sensing data, synthetic-aperture radar (SAR) data have the ability to ignore weather conditions and can provide images with intensity and phase information throughout the year, which is attracting more and more attention in measuring glacier motion . 2b1af7f3a8