Station details:
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Code: PDA
Latitude:  37.74670
Longitude:  -25.66330
Elevation:    35.0
Depth: 
Name: Ponta Delgada
Region: Azores,Portugal
Status: 

      

        
     
    
   
   

    

     

      
Arrival picks statistics
     
     

      

      

     
     

      
Travel Time Analysis
     
     

      

     
     

      
On the top graph every dot represents the median residual for one month of data. The green line is the overall median; the orange line shows the standard deviation (smad) based on the median absolute deviation (mad), whilst the red line shows twice the standard deviation (2 * smad).
The bottom graph shows the number of residuals for each month. The red columns show the number of residuals whose median (for that month) is outside two standard deviations from the overall median (2 * smad).
Red dots indicate a possible clock error.
     
     

      
Travel time residuals
     
     

      

      

     
    
   
 

Station comments:
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XC1-WWV
WWSS opened 19620302
Instituto Portugues do Mar e da Atmosfera

Data at the ISC for 90 years between 1905 and 2023.