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In order to select data taken only by commercial ships, excluding
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specialist ship data sources such as research vessels, a selection criteria has been established.
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In order to select data taken only by commercial ships, excluding
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specialist ship data sources such as research vessels, a selection criteria has been established.
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Data selection rules are shown in following table. Reports require a day of the month present and to be valid (e.g. 30 Feb not used), but data with a missing hour are included for certain `dck` between 1850 and 1872.
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Each action in the following table corresponds to an `ifelse` statement in [split_by_type.R](https://git.noc.ac.uk/brecinosrivas/icoads-r-hostace/-/blob/master/rscripts/split_by_type.R) (all of the table corresponds to this script or there are other scripts that I should refer to here??)
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Each action in the following table corresponds to an `ifelse` statement in [split_by_type.R](https://git.noc.ac.uk/brecinosrivas/icoads-r-hostace/-/blob/master/rscripts/split_by_type.R)
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________________
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Rule | Action
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:----- |:------------
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`pt` missing & <br>`dck` = 128, 150, 151, 152, 155, 156, 192, 201, 255, 701, 721, 875, 897, 899 | `pt` = 0 (ship)
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`pt` missing & <br>`dck` = 797 | `pt` = 13 (C-MAN)
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`pt` missing & <br>`dck` = 896 & <br>`id` contains PLAT or RIG | `pt` = 15 (platform)
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`pt` missing & <br>`dck` = 896 & <br> `id` contains SHIP | `pt` = 0 (ship)
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`pt` missing & <br>`dck` = 896, 883 & <br> `id` starts with number | `pt` = 6 (moored buoy)
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`pt` missing & <br> `dck` = 896 & <br> `id` contains 4Y or C7 | `pt` = 2 (OWS)
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`irf` = 2 except `dck` = 732 | Use ICOADS `irf` flag but retain `dck` 732 regional exclusions
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`pt` = 7 | Exclude drifters
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`pt` = 6 | Exclude moored buoys
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`pt` = 13 | Exclude C-MAN
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`pt` = 14 | Exclude other coastal or island stations
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`pt` = 16 | Exclude tide gauges
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`pt` = 18 | Exclude profiling floats
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`pt` = 19 | Exclude undulating oceanographic recorders
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`pt` = 20 | Exclude pinnepeds
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`pt` = 21 | Exclude gliders
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`dck` = 795, 995 | Exclude C-MAN
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`dck` = 735, 740, 780, 782 | Exclude research vessels
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`dck` = 793, 794, 993, 994 | Exclude moored buoys
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`id` = PLAT, BUOY, RIGG, BOUY | Exclude non-ship data
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`id` missing & <br> `dck` 700 | Exclude drifters
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`id` = 5 digits & <br> `dck` = 700 & <br> `sid` = 147 & <br> `pt` = 5 | Exclude buoys
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`id` = 5 digits & <br> `dck` = 892 & <br> `sid` = 29 & <br> `pt` = 5 | Exclude buoys
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`id` contains TEST but /= CONTEST | Exclude suspect data
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`pt` missing & <br>`dck` = 128, 150, 151, 152, 155, 156, 192, 201, 255, 701, 721, 875, 897, 899 | `pt` = 0 (ship)
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`pt` missing & <br>`dck` = 797 | `pt` = 13 (C-MAN)
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`pt` missing & <br>`dck` = 896 & <br>`id` contains PLAT or RIG | `pt` = 15 (platform)
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`pt` missing & <br>`dck` = 896 & <br> `id` contains SHIP | `pt` = 0 (ship)
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`pt` missing & <br>`dck` = 896, 883 & <br> `id` starts with number | `pt` = 6 (moored buoy)
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`pt` missing & <br> `dck` = 896 & <br> `id` contains 4Y or C7 | `pt` = 2 (OWS)
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`irf` = 2 except `dck` = 732 | Use ICOADS `irf` flag but retain `dck` 732 regional exclusions
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`pt` = 7 | Exclude drifters
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`pt` = 6 | Exclude moored buoys
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`pt` = 13 | Exclude C-MAN
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`pt` = 14 | Exclude other coastal or island stations
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`pt` = 16 | Exclude tide gauges
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`pt` = 18 | Exclude profiling floats
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`pt` = 19 | Exclude undulating oceanographic recorders
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`pt` = 20 | Exclude pinnepeds
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`pt` = 21 | Exclude gliders
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`dck` = 795, 995 | Exclude C-MAN
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`dck` = 735, 740, 780, 782 | Exclude research vessels
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`dck` = 793, 794, 993, 994 | Exclude moored buoys
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`id` = PLAT, BUOY, RIGG, BOUY | Exclude non-ship data
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`id` missing & <br> `dck` 700 | Exclude drifters
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`id` = 5 digits & <br> `dck` = 700 & <br> `sid` = 147 & <br> `pt` = 5 | Exclude buoys
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`id` = 5 digits & <br> `dck` = 892 & <br> `sid` = 29 & <br> `pt` = 5 | Exclude buoys
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`id` contains TEST but /= CONTEST | Exclude suspect data
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Invalid day | Exclude data with invalid dates
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Hour missing | Except for `dck` = 246, 701, 721
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** At least one present of `sst`, `slp`, `at`, `w`, `d`, `ww`, `n`, `wbt`, `dpt`, `vv`, `rh`, `wh`, `nh`, `w1`, `osv` | Exclude reports with no selected variables.
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Hour missing | Except for `dck` = 246, 701, 721
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** At least one present of `sst`, `slp`, `at`, `w`, `d`, `ww`, `n`, `wbt`, `dpt`, `vv`, `rh`, `wh`, `nh`, `w1`, `osv` | Exclude reports with no selected variables.
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The data is groupped according to the following type of platform:
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The data is grouped according to the following type of platform:
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- SHIP
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- DRIFT
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- DRIFT
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- PLAT
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- COAST
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- MOORED
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- SUBMARINE
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- RESEARCH
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- also REJECT (DY missing or HR missing for data after 1872 or ICOADS IRF reject) |
