############################################################################## # # # ATOVS and AVHRR Preprocessing Package (AAPP) # # Version 6.15 Release Notes # # 15 June 2011 # # # ############################################################################## 1. Package contents ------------------- The following files are contained in this update release (with file sizes in bytes): RELEASE_NOTE_AAPP_6_15.txt 3208 This release note AAPP_update_6_15.tgz 36759 AAPP source code This is an incremental update; users need to have installed versions 6.12, 6.13 and 6.14. 2. Main Changes --------------- - Calibration updates for NOAA-15 and NOAA-19 AMSU-A. - Fix navigation of EARS-AVHRR processing when there is a data gap. - Allow atovpp surface test to proceed without AMSU-B. - Increase number of IASI PCs to 300, following EUMETSAT recommendations. - Bug fix in BUFR decode of IASI PC product. 3. Installation --------------- a. Copy the tgz file to your AAPP top directory (i.e. the directory containing AAPP, metop-tools and iasi-tools) b. Unpack it using the command tar -xvmzf AAPP_update_6_15.tgz or if your system does not support the "-z" option in tar, use gunzip -c AAPP_update_6_15.tgz | tar -xmf - c. Go to the AAPP_6 top directory. If you intend to run IASI PC routines: make clean d. make 4. License ---------- To use this software, users need to have registered for AAPP v6 with the NWP SAF (www.nwpsaf.org), and to have agreed to the terms of the license agreement. 5. Version control information ------------------------------ The source package (AAPP_update_6_15.tgz) corresponds to Subversion Revision 265 in the AAPP repository held at the Met Office. 6. Detailed list of changes from v6.14 (r246) to v6.15 (r265) ------------------------------------------------------------- Key: M=Modified, A=Added, D=Deleted Calibration =========== M AAPP/src/calibration/libamsuacl/amsua_clparams.dat Update warm view lower limit for NOAA-19 AMSU channel 1 and relax antenna pointing tolerance for NOAA-15 AMSU-A1-1, due to frequent 256-count errors since late March 2011. Preprocessing ============= M AAPP/include/iasipc.h M AAPP/src/preproc/libatovpp/IASI.fdf Increase number of IASI PCs to 300 (recommended by EUMETSAT) M AAPP/src/preproc/bin/iasi_ev_readhdf5.c Initialise channeloffset, for portability M AAPP/src/preproc/libatovpp/ppiamsu.F M AAPP/src/preproc/libatovpp/pphamsu.F For surface test, remove the unnecessary requirement that AMSU-B is present Tools ===== M AAPP/src/tools/libaappbufr/aapp_get_1c.F Bug fix in indexing of iasipc_scalrad (wrong in AAPP v6.14) MetOp tools =========== M metop-tools/src/bin/avhrr-main.c Check for APID change (i.e. a 3A/3B transition) during a data gap and insert dummy scans if needed. Applicable to EARS-AVHRR. Also check pph.packet_length.