Differences

This shows you the differences between two versions of the page.

--- product_version [2010/02/12 13:33] – copied page from former website ebaudrez
+++ product_version [2024/05/28 13:58] (current) – external edit 127.0.0.1
@@ Line 16: / Line 16: @@
 ^ Product type ^ Data Version ^ Software Version ^ Summary of changes ^ Earliest affected date ^
+| G4 GL | V100 | 20220812_151631 | Release of GERB 4 data | 06-May-2024 |
+| G1* | 6 |                 | Change of AOD quantization value in GERB files  | 01-May-2010 |
 | G1* | 6 | 20091022_120851 | Change of the BAT calibration table by RAL and change of the cloud retrieval tables to be consistent with G2. New version numbers are in use: V005 for the level 1.5 and V006 for the level 2 products. It is expected that the new version could be the ED01 of G1. | 23-Oct-2009 |
-| G1* | 5 | 20070531_173507 | New spectral response used in the processing. The SW and LW radiance are both affected at the transition. An additionnal trend appeared in the next two days before stabilisation. For some pixels (48,49,86,87,89,165,187-189,250) the radiance has been strongly affected. | 31-May-2007 |
+| G1* | 5 |                 | Change of SEVIRI radiance definition at EUMETSAT for the thermal channels (no effect expected on the GERB products) | 05-May-2008 |
+| G1* | 5 | 20070531_173507 | New spectral response used in the processing. The SW and LW radiance are both affected at the transition. An additional trend appeared in the next two days before stabilisation. For some pixels (48, 49, 86, 87, 89, 165, 187-189, 250) the radiance has been strongly affected. | 31-May-2007 |
 | G1*L20*SOL | 4 | 20070511_130825 | The sun glint mask is only applied on water surface type. | 11-May-2007 |
 | G2* | 3 | - | G2 instrument has been stopped. | 10-May-2007 |
 | G1* | 4 | - | NRT processing of G1 started. G1 NRT data has not been yet validated and is not suitable for scientific studies. Before release, noticeable changes may occur in G1 data. | 26-April-2007 |
-| G2_SEV1_HR*EUROPE*V003 | 3 | 20060912_161052 | A geolocation bug has been corrected. Data generated before should be used with the new geolocation file: G2_SEV1_L20_HR_GEO_EUROPE_20060912_140000_V003.hdf. Radiance and flux are not affected. | 12-September-2006 |
+| G2_SEV1_HR*EUROPE*V003 | 3 | 20060912_161052 | A geolocation bug has been corrected. Data generated before should be used with the new geolocation file:\\ G2_SEV1_L20_HR_GEO_EUROPE_20060912_140000_V003.hdf. Radiance and flux are not affected. | 12-September-2006 |
-| G2_SEV1_HR*V003 | 3 | 20060421_135249 | Viewing angles were computed with satellite position at 0 degrees. Satellite nominal position (3.4 degree West) is used from now on. The new viewing angles can be used with data generated before fixing the satellite position. Radiance and flux are not affected. | 21-April-2006 |
+| G2_SEV1_HR*V003 | 3 | 20060421_135249 | Viewing angles were computed with satellite position at 0 degree. Satellite nominal position (3.4 degree West) is used from now on. The new viewing angles can be used with data generated before fixing the satellite position. Radiance and flux are not affected. | 21-April-2006 |
-| G2_SEV1*V003 | 3 | 20060325 | New version. Geolocation has changed. Non repeatability correction added. This version is the near real-time counterpart of Edition 1 data. The difference is that Edition 1 data has an additionnal quality control (QC) check and a 40 days delay. In the QC process, not all version 3 data is promoted as Edition 1 data. | 25-March-2006 |
+| G2_SEV1*V003 | 3 | 20060325 | New version. Geolocation has changed. Non repeatability correction added. This version is the near real-time counterpart of Edition 1 data. The difference is that Edition 1 data has an additional quality control (QC) check and a 40 days delay. In the QC process, not all version 3 data is promoted as Edition 1 data. | 25-March-2006 |
-| G2_SEV1_* | 2 | 20060209_102033 | >> Modification of the GERB LW ADM: the 7.3, 8.7 and 9.7�m SEVIRI channels are not used anymore in the regresion (see tech. note. MSG-RMIB-GE-TN-0039).\\ >> sun glint rejection angle for the aerosol retrieval is extended from 20 to 25 degrees. | 09-Feb-2006 |
+| G2_SEV1_* | 2 | 20060209_102033 | >> Modification of the GERB LW ADM: the 7.3, 8.7 and 9.7 um SEVIRI channels are not used anymore in the regresion (see tech. note. MSG-RMIB-GE-TN-0039).\\ >> sun glint rejection angle for the aerosol retrieval is extended from 20 to 25 degree. | 09-Feb-2006 |
 | G2_SEV1_L20L, G2_SEV1_L20S | 2 | 20060207_175528 | Correction of a bug in cloud amount and cloud phase. It is possible to have an acceptable value by dividing the cloud amount or cloud phase by the cloud cover. Pixels with cloud cover equal to 100% were not affected. | 07-Feb-2006 |
 | G2_SEV1_* | 2 | 20060112_133000 | Activation of the correction for clear ocean asymmetry | 12-Jan-2006 |
-| G2_SEV1_* | 2 | 20051222_154302 | >> Improvement of the SEVIRI NB-2-BB conversion: the SW uses the "Dubrovnik version".\\ >> Desactivation of the LW ADM empirical correction". | 22-Dec-2005 |
+| G2_SEV1_* | 2 | 20051222_154302 | >> Improvement of the SEVIRI NB-2-BB conversion: the SW uses the "Dubrovnik version".\\ >> Desactivation of the LW ADM empirical correction. | 22-Dec-2005 |
 | G2_SEV1_* | 2 | 20051202_145518 | Correction of very small inacuracies in the SEVIRI geolocation (much less than 0.5 SEVIRI pixel). | 2-Dec-2005 |
 | G2_SEV1_* | 2 | 20051028_133225 | GERB processing with the 08072005 version of the spectral response. Unfiltering parameters are adapted accordingly. Activation of the full thermal ADM correction (thin cirrus + hot desert). Implementation of a specific unfiltering for clear ocean footprint. Use of improved SEVIRI NB->BB regressions for the resolution enhancement. Use of CERES TRMM model SW albedo in sun glint condition over clear ocean. The changes have direct impact (improvement) on the level 2 GERB radiance and flux. | 30-Oct-2005 |
@@ Line 38: / Line 41: @@
 | G2_SEV1_* | 2 | 20040929_162056 | Activation of the empirical correction for longwave radiance-to-flux conversion ("thin-cirrus correction"). | 29-Sep-2004 (20040929_151500) |
 | G2_SEV1_L20S_M15_R50, G2_SEV1_L20L_M15_R50 and G2_SEV1_L20A_H | 2 | 20040929_100908 | The viewing angles have been corrected. The nominal position of the satellite is used in place of the rectification nominal value (0 degree). | 29-Sep-2004 |
-| SEV1 | 2 | 20040729_092256 | Earth radius has been modified according to Eumetsat values. This should not impact on data values as the difference is negligeable. | 14-Jul-2004 |
+| SEV1 | 2 | 20040729_092256 | Earth radius has been modified according to Eumetsat values. This should not impact the data values as the difference is negligible. | 14-Jul-2004 |
 | MS7A | - | - | Generation of data based on MS7A is discontinued. | 06-Jul-2004 |
 | BARG | 2 | 20040423_1310 | Spatial averaging of BARG data has been corrected. Should be 5x5 and was 6x6 pixels. | 23-Apr-2004 |