The objective of this project is the development and validation of the scientific algorithm for the near real time Level 2 analysis of MIPAS measurements on ENVISAT . This algorithm, suitable for implementation in ENVISAT Payload Data Segment and optimised for the requirements of speed and accuracy, has been developed in the frame of the ESA- supported Study entitled "Development of an Optimised Algorithm for Routine p,T and VMR Retrievals from MIPAS Limb Emission Spectra". This code is called Optimised Retrieval Model (ORM) and performs in near real time the retrieval of pressure, temperature and volume mixing ratio of six high-priority species, namely O₃, H₂O, HNO₃, CH₄, N₂O and NO₂.

This Study started in October 1995 and is now completed after the validation of the algorithm with the first measurementts detected by MIPAS.

A new project has started, entitled ‘Support to MIPAS level 2 product validation’, whose objective is providing support to ESA in the assessment of the performance of MIPAS instrument and the quality of MIPAS data products, as well as investigating on possible improvements of the products.