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The result of using read.cm() on a current meter file holding measurements made with an Interocean S4 device. See read.cm() for some general cautionary notes on reading such files. Note that the salinities in this sample dataset are known to be incorrect, perhaps owing to a lack of calibration of an old instrument that had not been used in a long time.

Usage

data(cm)

Examples

library(oce)
data(cm)
summary(cm)
#> Cm summary
#> ----------
#> 
#> * File source:   "/Users/kelley/Dropbox/data/archive/sleiwex/2008/moorings/m11/cm/interocean_0811786/manufacturer/cm_interocean_0811786.s4a.tab"
#> * Instr. type:   (2Hz)S4
#> * Serial Num.:   8111786
#> * Version:       2.399
#> * North:         magnetic
#> * Time: 2008-06-26 to 2008-06-26 23:59:00 (1440 samples, mean increment 1 min)
#> * Data Overview
#> 
#>                              Min.       Mean       Max.       Dim. NAs  OriginalName
#>     Sample..                 842        1561.5     2281       1440 0    "Sample #"  
#>     Date                     NA         NA         NA         1440 0    "Date"      
#>     Time                     NA         NA         NA         1440 0    "Time"      
#>     dec.S                    0          0          0          1440 0    "dec S"     
#>     v [m/s]                  -0.862     -0.088736  0.74       1440 0    "Vnorth"    
#>     u [m/s]                  -0.478     0.02761    0.654      1440 0    "Veast"     
#>     Speed                    1.44       53.569     98.29      1440 0    "Speed"     
#>     Dir                      7          126.99     352.1      1440 0    "Dir"       
#>     Vref                     NA         NA         NA         1440 1440 "Vref"      
#>     Hx                       -210       -31.052    177        1440 0    "Hx"        
#>     Hy                       -212       -0.58889   211        1440 0    "Hy"        
#>     conductivity [mS/cm]     36.8       36.924     37.2       1440 0    "Cond"      
#>     temperature [°C, ITS-90] 1.204      2.0773     3.065      1440 0    "T-Temp"    
#>     Depth                    73.242     74.767     77.148     1440 0    "Depth"     
#>     none                     NA         NA         NA         1440 1440 "none"      
#>     none.1                   NA         NA         NA         1440 1440 "none"      
#>     Hdg                      0          175.79     359.2      1440 0    "Hdg"       
#>     X                        NA         NA         NA         1440 1440 "-"         
#>     salinity [PSS-78]        41.307     42.71      44.205     1440 0    "Sal"       
#>     Dens                     1033.3     1034.5     1035.8     1440 0    "Dens"      
#>     SV                       1467.9     1469.8     1472.2     1440 0    "SV"        
#>     X.1                      NA         NA         NA         1440 1440 "-"         
#>     N.S.Dist                 -2535.2    4159.5     10349      1440 0    "N-S Dist"  
#>     E.W.Dist                 -2033.5    893.81     4687.5     1440 0    "E-W Dist"  
#>     X.2                      NA         NA         NA         1440 1440 "-"         
#>     SRB.Date                 NA         NA         NA         1440 1440 "SRB Date"  
#>     SRB.Time                 NA         NA         NA         1440 0    "SRB Time"  
#>     Vref.1                   1.226      1.2263     1.23       1440 1152 "Vref"      
#>     Hx.1                     NA         NA         NA         1440 1440 "Hx"        
#>     Hy.1                     NA         NA         NA         1440 1440 "Hy"        
#>     Cond.1                   NA         NA         NA         1440 1440 "Cond"      
#>     T.Temp.1                 NA         NA         NA         1440 1440 "T-Temp"    
#>     Depth.1                  NA         NA         NA         1440 1440 "Depth"     
#>     none.2                   NA         NA         NA         1440 1440 "none"      
#>     none.3                   NA         NA         NA         1440 1440 "none"      
#>     Hdg.1                    NA         NA         NA         1440 1440 "Hdg"       
#>     X.3                      NA         NA         NA         1440 1440 "-"         
#>     Sal.1                    NA         NA         NA         1440 1440 "Sal"       
#>     Dens.1                   NA         NA         NA         1440 1440 "Dens"      
#>     SV.1                     NA         NA         NA         1440 1440 "SV"        
#>     pressure [dbar]          73.855     75.392     77.794     1440 0    "-"         
#>     time                     1214438400 1214481570 1214524740 1440 0    "-"         
#> 
#> * Processing Log
#> 
#>     - 2023-02-10 12:50:57 UTC: `create 'cm' object`
#>     - 2023-02-10 12:50:57 UTC: `read.oce("~/data/archive/sleiwex/2008/moorings/m11/cm/interocean_0811786/manufacturer/cm_interocean_0811786.s4a.tab", ...)`
#>     - 2023-02-10 12:50:57 UTC: `subset.cm(x, subset=time < as.POSIXct("2008-06-27 00:00:00", tz = "UTC"))`
plot(cm)