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#                                                                            #
#                               IASI OPS-LRS                                 #
#            Release Notes for version OPS_V7.0+p12-AAPP-l-20150504          #
#                               12 June 2015                                 #
#                                                                            #
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1. Package contents
-------------------
The following files are included in this release (with file sizes in bytes):

  RELEASE_NOTE_OPS-LRS_V7-0+p12.txt        3517 This release note
  patch_OPS_V7.0+p1-AAPP-l-20140822.tgz  168670 Patch 1
  patch_OPS_V7.0+p12-AAPP-l-20150504.tgz  33434 Patch 2

To install and run the OPS-LRS package, users need to have first installed
AAPP v7.

This is an incremental update: first install the base release OPS_V7.0-AAPP-l-20130905

Most users will also require the FFTW and XERCES libraries that are available on
the AAPP ftp site, though alternatives may be suitable on some systems. See
User Manual for details.


2. Purpose
----------
OPS-LRS processes MetOp IASI data from Level 0 to Level 1c. This version
incorporates the latest OPS updates from CNES, and is based on the OPS software
used operationally at EUMETSAT.

The Level 0 data are normally obtained by direct-readout AHRPT.

This release has the following changes compared with release OPS_V7.0-AAPP-l-20130905:

Patch 1: Improve error handling and update IASI product header (particularly
         COUNT_DEGRADED_INST and COUNT_DEGRADED_PROC)
Patch 2: Improve error handling with bad input SVM files.

These are minor changes and the update is optional for existing users of OPS-LRS V7.0.


3. Installation
---------------
a. cd to the top directory of your OPS-LRS installation

b. Unpack each tar file using the command
   tar -xvmzf patch_OPS_V7.0+p1-AAPP-l-20140822.tgz
   tar -xvmzf patch_OPS_V7.0+p12-AAPP-l-20150504.tgz

   or if your system does not support the "-z" option in tar, use
   gunzip -c patch_OPS_V7.0+p1-AAPP-l-20140822.tgz | tar -xmf -
   gunzip -c patch_OPS_V7.0+p12-AAPP-l-20150504.tgz | tar -xmf -
   
c. Build OPS-LRS following the instructions in the OPS-LRS User Manual.
   

4. License
----------
To use this software, users need have registered for AAPP version 7
with the NWP SAF (www.nwpsaf.eu), and to have agreed to the terms and
conditions for use of AAPP and OPS-LRS.


5. Delivery mechanism
---------------------
OPS-LRS is delivered by FTP. 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 and IRIX are not
supported.

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. AAPP Web site
----------------
For further information on AAPP and OPS-LRS, please visit the NWP SAF web site
at http://www.nwpsaf.eu

For bug reports, suggestions for improvement, etc., please use the NWP SAF 
feedback form, linked from the above web site.