Fire mapping   Using data from ESA's ERS-2 satellite, a team of scientists from Germany and Indonesia has concluded that the 1997-98 forest fires in Indonesia damaged recently-logged land much more seriously than virgin forest. Photo: F. Siebert   A comparison of three different Envisat sensors. Top, a MERIS reduced resolution image showing smoke plumes. Middle, this AATSR night time acquisition identifies fire hotspots in red. Bottom: an ASAR wide swath image used to chart fire damage. Last update: 12 July 2004