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Projects

MIPAS-B has been supported by the German Research Ministry via the German Ozone Research Programme, the German AFO2000 Programme, the German Envisat Validation Programme, by the European Commission under framework of its Atmosphere research programmes and by ESA. Flights with MIPAS-B had been integrated in all large European ozone-related research field activities such as EASOE, SESAME, THESEO, AFO2000, SCOUT-O3, and ESABC.

MIPAS-B data have also been used for the validation of data obtained by the satellite instruments CLAES (Cryogenic Limb Etalon Array Spectrometer) on the American Upper Atmosphere Research Satellite (UARS) as well as ILAS (Improved Limb Atmospheric Sounder) and ILAS-II aboard the Japanese ADvanced Earth Observing Satellite (ADEOS) and the Atmospheric Chemistry Experiment (ACE) on the SCISAT-1 satellite.

Currently, the MIPAS-B team is primarily involved in the following projects:

 

 Envisat long-term validation

MIPAS-B is being used for Envisat long-term validation, in particular its atmospheric sensors MIPAS, SCIAMACHY, and GOMOS.

 ENRICHED project

The goal of the ENRICHED project is to characterize the chemical and dynamical state under different geophysical conditions in the stratosphere (e.g., diurnal variation, partitioning and budget of chlorine, bromine, and nitrogen oxides; dynamical evolution in a changing climate; fast transport, filamentation and mixing). Cross comparisons are being performed with regard to possible inconsistencies in spectroscopy (in different spectroscopic regions) and observation methods (in situ versus remote sensing). This includes also validation activities concerning several trace species measured by the chemistry instruments MIPAS, SCIAMACHY, and GOMOS aboard Envisat.

 Advanced technology multi-instrument remote sensing payload (MIPAS/TELIS/miniDOAS)

In cooperation with DLR, SRON, RAL, Universities of Bremen and Heidelberg, an advanced technology multi-instrument remote sensing payload has been qualified for first deployment in 2008. The payload consists of MIPAS-B, TELIS (TeraHertzLimbSounder), and mini-DOAS. This new combination of sophisticated sensors is dedicated to remote sensing of radiation, atmospheric state parameters, cloud information and atmospheric composition. The sensors cover a wide range of the electromagnetic spectrum that can be used for atmospheric research. The broad spectral coverage offers large synergies as e.g. the cross-check of spectroscopic parameters, the cross-validation of measured parameters, the closure of chemical families, and improved detection of cloud parameters.

 GLORIA-AB and IMIPAS

GLORIA-AB and IMIPAS (Imaging MIPAS) are our vision for a new area of FTIR instruments for atmospheric research. This group of instruments is devoted to assess the role of the meso-scale for the global scale.

Over the last 15 years great progress has been achieved in the understanding of atmospheric chemistry, particularly concerning chemistry governing the formation and destruction of the ozone hole and on large scale dynamics. Significant contributions to this progress have come from remote sensing instruments like MIPAS. More recently, the link between atmospheric composition and climate have attracted special attention of the scientific community. The absence of regional and global observations which resolve the processes concerned is one of the factors which fundamentally limit our current understanding. Current remote sensing instruments are restricted in their ability to resolve characteristic features of atmospheric dynamics in the UTLS (such as gravity waves).

To achieve these objectives and to overcome limitations of today’s remote sensing instruments a new generation of imaging FTIR spectrometers is being developed in cooperation between the Research Centers Jülich and Karlsruhe. The instrument design is optimised for limb-sounding of the troposphere and lower stratosphere. The atmospheric limb will be imaged onto 2-D detector arrays, instead of mechanically-scanning to allow (a) vertical sampling at =0.5 km steps, (b) simultaneous sampling of across-track directions and all tangent-heights, (c) finer sampling along track and (d) clouds to be observed at sub-pixel resolution and cloud-free views identified.

An instrument for airborne applications, called GLORIA-AB (GLObal Radiance Limb Imager for the Atmosphere – Air Borne version) has been developed for deployment on the German research aircraft HALO. Another version of this instrument is planned for the operation on stratospheric balloons. This instrument will also allow nadir measurements.

A spaceborne version, called IMIPAS (Imaging MIPAS) has been part of the proposal PREMIER (PRocess Exploration through Measurements of Infrared and millimetre-wave Emitted Radiation) to ESA’s Earth Explorer Mission Call and is currently studied in pre-phase A.