############################################################################## ATOVS and AVHRR Preprocessing Package (AAPP) Version 8.15 Release Notes 30 June 2025 ############################################################################## 1. Package contents ------------------- NWP SAF software is normally made available to registered users via the "software downloads" section of the NWP SAF web site (linked from the top bar of https://nwp-saf.eumetsat.int/site/). AAPP updates are available in two forms: (i) as an incremental update, for users who are updating an existing installation, or (ii) as a full release. The incremental update comprises the following files: (sizes in bytes): RELEASE_NOTE_AAPP_v8.15.txt 5792 This release note AAPP_update_8_15.tgz 43746 Changed files The full release comprises: AAPP_8.15.tgz 24869734 Source code and data files The IASI level 1 processor (OPS-LRS) is available separately. 2. Main Changes --------------- 2.1 Summary of changes ---------------------- Bug fix for Arctic Weather Satellite: write the correct geolocation to output BUFR, when a particular reference feedhorn is specified by the user. Update AMSU-A gross limits for Metop-B and Metop-C. Update default list of satellites used by "get_tle". Remove obsolete satellites and add NOAA-21 and FY-3E/3F. Take account of the fact that EUMETSAT no longer provide TLEs for NOAA POES. Modify config/gfortran for compatibility with gcc14 Add a python script aapp_BUFR_quicklook.py to plot BUFR data (e.g. to visualise the Arctic Weather Satellite test case) 2.2 Impact ---------- BUFR l1c output correctly uses the geolocation of the reference feedhorn specified for re-mapping by the user (rather than the geolocation of the reference feedhorn corresponding to band 1). Ensure correct calibration of all functioning AMSU-A channels. Ensure up to date TLEs for users who use "get_tle" to retrieve them. 2.3 Documentation updates ------------------------- AAPP-AWS User Manual v1.1 2.4 Test case updates --------------------- Addition of test case for Arctic Weather Satellite (AWS): aws_test.tgz, available at https://nwp-saf.eumetsat.int/downloads/aapp_data_files/test_cases/ . L1B netCDF input data is processed to L1B BUFR (no averaging or thinning) as well as to L1C BUFR (3x3 averaging for all channels and 1 in 3 thinning in both directions). A script has also been provided to generate plots from both L1B and L1C BUFR files. Reference output (BUFR and PNG files) has been included for users to verify their output. 2.5 Data file updates --------------------- None 3. Installation --------------- To assist the installation process, it is recommended that you consult the installation script install_aapp8.sh (see https://nwp-saf.eumetsat.int/site/software/aapp/download/). This will guide you through the installation of all the main libraries that are used by AAPP and OPS-LRS (including ecCodes, BUFRDC, xerces, fftw, flex, gettext, kai). 3.1 Updating an existing AAPP installation ------------------------------------------ To update an existing installation: a. Copy the update release tgz file to your AAPP top directory (i.e. the directory containing AAPP, metop-tools and iasi-tools) b. Unpack using the command tar -xvmzf AAPP_update_8_15.tgz or if your system does not support the "-z" option in tar, use gunzip -c AAPP_update_8_15.tgz | tar -xmf - (Note the use of the "m" flag to ensure that newly-unpacked files have today's date and will therefore be processed by make) c. Go to the AAPP_8 top directory and type make and optionally "make install", if you have a separate installation directory. 3.2 Creating a new installation ------------------------------- If you are creating a new installation, the sequence is: (1) unpack the full 8.15 release (2) run "configure" (see chapter 3.3 of the AAPP Installation Guide), (3) run "make" (4) If you used the --prefix= option in configure, run "make install" (5) If you are using locally-installed hdf5/ecCodes libraries, edit your ATOVS_ENV8 file and define DIR_HDF5 and DIR_ECCODES appropriately, according to the instructions near the bottom of the file. If you want to run MAIA, you should download and unpack the necessary data files that are linked from the AAPP downloads web page (https://nwp-saf.eumetsat.int/site/software/aapp/download/). To test a new installation, it is recommended to run some of the AAPP test cases, see Chapter 4 of the AAPP Installation Guide. The test cases are linked from the AAPP downloads web page. 4. License ---------- To use this software, users need to have registered for AAPP v8 with the NWP SAF (https://nwp-saf.eumetsat.int/site/), and to have agreed to the terms of the license agreement. 5. Version control information ------------------------------ Version control information is stored in a AAPP_version.txt file in the top directory ($AAPP_PREFIX). It is generated automatically at the release preparation stage. AAPP_version.txt contains: 8.15 Release date: 2025-06-30 12:16:31 +0000 (Mon, 30 Jun 2025) Commit: 231f6ab6bddf7d01982c5bbc588b0b366ddec2a1 6. Detailed list of changes from v8.14 to v8.15 ----------------------------------------------- Key: M=Modified, A=Added, D=Deleted A AAPP-AWS/src/bin/aapp_BUFR_quicklook.py A AAPP/src/tools/bin/aapp_BUFR_quicklook.py M AAPP-AWS/src/Makefile M AAPP-AWS/src/bin/Makefile M AAPP-AWS/src/libaws/aws_remap.f90 M AAPP-AWS/src/libaws/aws_write_bufr.f90 M AAPP/src/calibration/libamsuacl/amsua_clparams.dat M AAPP/src/navigation/bin/get_tle.ksh M AAPP/src/tools/bin/Makefile M config/gfortran M configure