Envisat's contribution to atmospheric chemistry studies

After the discovery of the Antarctic ozone hole, concern about the evolution of the global ozone layer led to the development of various devices for measurement of atmospheric composition. Among them, three innovative instruments were decided to be embarked on ESA's Environmental Satellite (Envisat). Their purpose is to investigate chemical and physical processes and human impact on Earth's atmosphere on a global scale, and to contribute to precise monitoring of the UV-shielding stratospheric ozone layer. The instruments are: GOMOS, MIPAS and SCIAMACHY.