############################################################################## # # # IASI OPS-LRS # # Release Notes for version OPS_V5-0+p12-AAPP-sl-20091130 # # 24 February 2010 # # # ############################################################################## 1. Package contents ------------------- The following files are included in this release (with file sizes in bytes): RELEASE_NOTE_OPS-LRS_V5-0+p12.txt 3723 This release note OPS_V5-0+p12-AAPP-sl-20091130.tgz 12298334 IASI OPS-LRS package To install and run the OPS-LRS package, users need to have first installed AAPP v6.12 (or higher). Most users will also require the FFTW and XERCES libraries that have been issued previously with OPS-LRS, though alternatives may be suitable on some systems. 2. Purpose ---------- OPS-LRS processes MetOp IASI data from Level 0 to Level 1c. This version incorporates the latest OPS updates from CNES. The Level 0 data are normally obtained by direct-readout AHRPT. This version is the so-called "Day-2" OPS-LRS. The level 1c format has been expanded to allow space for cloud and surface variables. Support for alternative FFT libraries has been added (FFTPACK, Numerical Recipes, ESSL). A non-zero default optical axis position has been added, to give improved global-local consistency. 3. Installation --------------- a. Copy the tgz file to the directory where you want to install OPS-LRS. b. Unpack it using the command tar -xvmzf OPS_V5-0+p12-AAPP-sl-20091130 or if your system does not support the "-z" option in tar, use gunzip -c OPS_V5-0+p12-AAPP-sl-20091130 | tar -xmf - c. Configure and build OPS-LRS following the instructions in the OPS-LRS User Manual. d. Download the configuration files from the AAPP ftp site (see below) The formats of the BRD and GRD configuration files have been updated in this version of OPS-LRS. The latest files are available from the AAPP ftp server, in directory OPS-LRS_aux. To avoid confusion, it is recommended that the old BRD and GRD files are moved from your aux directory. The CTX, ENG, VER and ODB files are unchanged. 4. License ---------- To use this software, users need have registered for AAPP version 6 with the NWP SAF (www.nwpsaf.org), and to have agreed to the terms and conditions for use of AAPP-6 and OPS-LRS. 5. Delivery mechanism --------------------- OPS-LRS is delivered by FTP or CD-ROM. A test case is normally available on the AAPP FTP site; if you have difficulty obtaining it please contact the NWP SAF Helpdesk. 6. System requirements ---------------------- Supported platforms include: AIX, Solaris and Linux PC. HPUX is not supported. IRIX users should contact the NWP SAF Helpdesk for guidance. The host machine must be able to run multithreaded applications, using pthreads (POSIX threads). To build OPS-LRS requires a Fortran 90 or FORTRAN 77 compiler, a C compiler and a C++ compiler. To run OPS-LRS requires about 1 Gbyte of disk space and 2 Gbyte of memory. Standard Unix utilities (including make, ar, tar, perl5, lex, yacc) are used. 7. Documentation ---------------- There are no changes to the User Manual or other documents. 8. AAPP Web site ---------------- For further information on AAPP and OPS-LRS, please visit the NWP SAF web site at http://www.nwpsaf.org For bug reports, suggestions for improvement, etc., please use the NWP SAF feedback form, linked from the above web site.