This is the first edition of the Global Wildfire Information System (GWIS) annual report on forest fires for the year 2021 in Latin America. The section on national reports provides an overview of national and regional efforts in several Latin American countries. This is followed by information...

This is the first edition of the Global Wildfire Information System (GWIS) annual report on forest fires for the year 2021 in Latin America. The section on national reports provides an overview of national and regional efforts in several Latin American countries. This is followed by information...

The motion of discs in a granular 2D packing slowly tilted till the system loses its stability is studied by image analysis. As in the 3D case (packing of spheres), before the avalanche takes place, the system undergoes several rearrangements of different magnitudes which do not imply lose of...

We report an experiment on a granular packing: a box filled with glass beads is tilted very slowly up to the maximum angle of stability where a big avalanche is produced. During the build-up period many rearrangements occur on the free surface of the packing. Digital imaging was used to study...