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Diffstat (limited to 'misc/xtide/DESCR')
| -rw-r--r-- | misc/xtide/DESCR | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/misc/xtide/DESCR b/misc/xtide/DESCR deleted file mode 100644 index 3f557381fa3..00000000000 --- a/misc/xtide/DESCR +++ /dev/null @@ -1,24 +0,0 @@ -XTide is a package that provides tide and current predictions in a -wide variety of formats. Graphs, text listings, and calendars can be -generated, or a tide clock can be provided on your desktop. XTide can -work with X-windows, plain text terminals, or the web. This is -accomplished with three separate programs: the interactive interface -(xtide), the non-interactive or command line interface (tide), and the -web interface (xttpd). - -The algorithm that XTide uses to predict tides is the one used by the -National Ocean Service in the U.S. It is significantly more accurate -than the simple tide clocks that can be bought in novelty stores. -However, it takes more to predict tides accurately than just a spiffy -algorithm -- you also need some special data for each and every -location for which you want to predict tides. XTide reads this data -from harmonics files. Ultimately, XTide's predictions can only be as -good as the available harmonics data. Due to issues of data -availability and of compatibility with non-U.S. tide systems, the -predictions for U.S. locations tend to be a lot better on average -than those for locations outside of the U.S. -* Deviations of 1 minute from official predictions are typical for U.S. - locations having the latest data. -* Deviations of 20 minutes are typical for non-U.S. locations or U.S. - locations that are using obsolete data. -* Much longer deviations indicate a problem. |