MIPAS PROCESSOR RELEASES

Upgrades:

- Improved spike detection/correction algorithm

- Improved offset validation algorithm

- Improved non-linearity characterisation

- Improved altitude determination

Bug fixes:
- Wrong 'Number of sweeps in current scan' for special mode
- Wrong REF_DOC in MPH of MIPAS products.

Compiled with the new CFI version 5.8.1 for the Envisat mission extension.

Upgrades:
- Truncation of the Interferogram to 8.0 cm in order to avoid under-sampling the spectrum for the Optimized Resolution mission
- Improved Level 1b engineering heights calculation
- Calculation of the quadratic terms for spectral calibration that are provided in the output products
- Additional fields in the Level 1b products, such as the auxiliary L0 data packets that provide information about housekeeping data.

Linux porting of the IPF version 4.67 (AIX processor).

Bug fixes:
- L1b products generated with wrong "NUM_DSR" value in the SPH; in particular this value differs by one unit from the "TOT_SCAN" value, while the two should be the same.
- Violation of the shared memory area of PFHS. PFHS performance is seriously affected, because too many manual re-starts become necessary.

No updates for Level 1 processing.

Bug fixes:
- Problem with the block sequence.

Upgrades:
- Processing of low resolution measurements, with reduced resolution for offset and gain data.
Bug fixes:
- Band D oscillations in forward sweeps for MIPAS reduced-resolution products
- NESR data problem.

Upgrades:
- Processing of low resolution measurements, without reduced resolution for offset and gain data.
Bug fixes:
- Bug in the MIPAS processor ILS retrieval.
- Scans with null NESR.

Bugs fixes:
- Sparse corruption of bands between 1 and 4 January 2004.

No updates for Level 1 processing.

Upgrades:
- Modification of FCE algorithm
- Elimination of strong anomalous oscillations in the spectra
- Modification of NESR reporting
- ADC saturation flagging
- Addition of aliasing spike suppression algorithm.

ORM
8.22

orm 8.22

1.0

7.1

2.0

Ref. to IODD

9.06

Upgrades:

1. Handling of horizontal inhomogeneities
2. Height-dependent cloud-index thresholds for cloud detection
3. Optimal Estimation
4. Choice in the selection of Initial Guess profiles/ assumed profiles of interfering species
5. Filtering of the retrieved profiles
6. Retrieval of additional 6 species (C2H2, C2H6, COCl2, CH3Cl, OCS and HDO)

REPRO

Phase F

Upgrades:
- Implementation of a self-adapting altitude-dependent regularization scheme
- Implementation of a change in continuum retrieval variables
- Upgraded microwindows for the Full Resolution measurements
- Diurnally varying climatological profiles
- Retrieval of additional species (COF2, CCl4, HCN, CFC-14, HCFC-22)

Upgrades:
- Retrieval of additional species (CFC-11, CFC-12, ClONO2, N2O5)
- Increase of convergent profile
- Removal of constraints for negative VMR
- New AKM and VCM calculation
- Diurnally varying initial guess
- New quality flags
- Improved convergence

Bug fixes:
- Invalid information in DATASET STRUCTURE ADS for 'empty' products
- MIP_NLE_2P conversion fail on BUFR (ESRIN and Kiruna)
- MIPAS IPF 5.05 crashes for one orbit in NRT operations
- High chi square for CH4 and N2O retrieval
- MIPAS wrong flag in ADS in case of empty MDS
- Microwindow Occupation ADS corrupted records
- MIPAS: problem with GRIBEX.

Upgrades:
- Level 2 processing of the Optimized Resolution mission.

No Level 2 processing with this IPF version.

Linux porting of the IPF version 4.67 (AIX processor).

Bug fixes:
- NO2 MIPAS products relative to orbit #7000 (3 July 2003)  with high values of chi2
- Some Level 2 products processed with IPF 4.62 differ from the corresponding products processed with IPF 4.61
- Some L2 products processed with IPF 4.61 and IPF 4.62 give beat-check format error.

Upgrades.
Bug fixes:
- Problem with MIP_NL__2P.

Upgrades:
- Level 2 processing of the Reduced Resolution mission.
Bug fixes:
- Some MIPAS profiles have zero pressure
- MIPAS Level 2 failure
- Problem with MIPNL__2P
- One second discrepancy in IPF 4.61.

Bug fixes:
- Cloud-detection anomaly
- Inconsistent values in MIPAS files
- Level2 profile counting bug.

Bug fixes:
- Inconsistency in number of profiles in MIPAS Level_2
- Number of computed residual spectra not consistent with the number of observations.

Upgrades:
- Cloud filtering
- Removal of the gaps between the altitude validity ranges, allowing retrievals in the Antarctic region
- Altitudes margins fixed to +/- 4 km
Bug fixes:
- Inconsistency in number of scans
- Different values for same scans
- Wrong DSD name in L2 product in case of not requested VMR
- Filling of SPH field 22 of MIPAS Level 2 Products
- Filling of the MIPAS MPH and MIPAS Level 2 SPH fields
- Wrong writing of PCD String to the PCD Information ADS
- Too strong test and skipping retrieval
- Not initialised nucl1 and nucl2 in R 8.5.6.3-7A
- MIPAS L2 processing aborted