Changes between Version 62 and Version 63 of Projects/NEMOVAR/Notes


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Timestamp:
03/08/15 15:00:12 (4 years ago)
Author:
cthomas
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  • Projects/NEMOVAR/Notes

    v62 v63  
    99Operation of the NEMO/NEMOVAR assimilation code is controlled by the Rose suite labelled puma-aa184, which is based on puma-aa164 (itself a copy of puma-aa145).  
    1010The purpose of this suite is to assimilate data into a high-resolution ocean model using a cycling framework.  
     11 
     12The setup of the suite is described in 
    1113 
    1214 
     
    121123The observations are as follows: 
    122124* Altimeter: satellite altimetry; AVISO and/or "realtime" measurements 
    123 * GHRSST: sea surface temperature from two satellites (AVHRR, METOP) 
    124 * Profile:  
    125  
     125* GHRSST: sea surface temperature (SST) from two satellites (AVHRR, METOP) 
     126* Profile: profile measurements 
     127* Sea ice: sea ice 
     128* Surface: in-situ SST 
     129 
     130The location of these files is controlled in the relevant `rose-app-*.conf` file; both an input directory (`INBASEDIR`) and  
     131file stem (`INOBSFILE`) are required.  
     132Similarly to the fluxes, the filenames must contain the date.  
     133Note that profile data may be monthly instead of daily.  
     134 
     135The script `NemoQcProg_ExtractAndProcess` prepares the files by copying them, unzipping them and running  
     136`NemoQcProg_ExtractAndProcess.exe`, which applies some quality control.  
    126137 
    127138 
     
    130141 
    131142The app is called `fixed_ancillary` and corresponds to the subdirectory `GO5_orca025_ancillary`.  
    132 This app copies ancillary files into the output directory.  
     143This app copies ancillary files (usually one-offs that don't change during the suite's operation) into the output directory.  
    133144 
    134145* `rose-app.conf`: defines a variety of environment variables (pointing to NEMO data directories) and creates softlinks.  
     
    137148* `bin/operational_ancilliary`: creates a large number of softlinks 
    138149 
     150Example ancillary files include bathymetry, x/y positions, rivers, and XML configuration of NEMO.  
     151 
     152 
    139153 
    140154==== Initial restarts ==== 
    141155 
    142156The app is called `fixed_restarts` and corresponds to the subdirectory `initial_restarts`. 
    143 This app copies the initial restarts.  
     157This app copies the initial restarts which are used as the background state on the first assimilation.  
     158If the cycling starts on data D, the restarts must be present for that date.  
     159In further iterations of the cycle, restarts are taken to be the analysis from the previous iteration.  
    144160 
    145161* `rose-app.conf`: defines `RESTART_DIR` 
    146162* `bin/copy_restarts`: creates a link from `RESTART_DIR` to `OUTDIR_RESTARTS` 
     163 
     164 
    147165 
    148166