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user/poddo/atm_press_flt (diff) – NEMO

Changes between Version 13 and Version 14 of user/poddo/atm_press_flt


Ignore:
Timestamp:
2011-11-02T10:05:58+01:00 (12 years ago)
Author:
poddo
Comment:

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  • user/poddo/atm_press_flt

    v13 v14  
    2121EXP3 is the same of EXP1 plus the introduction of the AP.[[BR]] 
    2222EXP4 is EXP2 plus the introduction of the AP forcing.[[BR]] 
    23 All the experiments start from SeaDataNet climatology on January 2004 and run until December 2007. 
     23All the experiments start from SeaDataNet climatology on January 2004 and run until December 2007. [[BR]] 
    2424[[Image(fig01.png)]] 
     25[[BR]] 
    2526 
    2627== Results and Discussion == 
    2728The differences of the mean SSH (averaged over the entire simulated period) between EXP1 and EXP3 is shown in the upper panel of the figure below, the analogous for the difference between EXP2 and EXP4 is shown in the bottom panel (units are m). 
    28 Introducing the Atmospheric pressure forcing, a large scale zonal gradient is observed in both the cases (filtered and time splitting algorithms). This large scale pattern is the oceanic counterpart of the climatological (over the 4 simulated years) atmospheric pressure field used to force the model. 
     29Introducing the Atmospheric pressure forcing, a large scale zonal gradient is observed in both the cases (filtered and time splitting algorithms). This large scale pattern is the oceanic counterpart of the climatological (over the 4 simulated years) atmospheric pressure field used to force the model. [[BR]] 
    2930[[Image(fig.02.png)]] 
     31[[BR]] 
    3032 
    3133The differences of the SSH Standard Deviation between the experiments is shown in the figure below. In both the cases (filtered or time-splitting) the introduction of the AP forcing increases the standard deviation (variability) of the SSH during the simulated period (differences are, in general, negative). As a consequence of the additional forcing introduced, the basin has a large scale oscillation increasing the SSH variability. However, the larger variability (temporal/spatial) is smoothed (“filtered”) in the filtered free-surface case as evident from the smaller values in the upper panel of the figure below. This different behavior is particularly evident in the shallow areas. [[BR]] 
    3234[[Image(fig.03.png)]] 
     35[[BR]] 
    3336 
    3437