Hi,
I’m new using your API ; first, I’d like to thank you for your API!
However, I found some issues in datas: for some places there is only 2 tides per day. This is something not possible, isn’t it ?
For example :
Tuban, EastJava:
[latitude] => -6.8976
[longitude] => 112.0649
Here is a sample of what I get :
[1] => Array
(
[timestamp] => 1648544242
[datetime] => 2022-03-29T08:57:22+00:00
[height] => 0.59062422347307
[state] => HIGH TIDE
)
[2] => Array
(
[timestamp] => 1648595837
[datetime] => 2022-03-29T23:17:17+00:00
[height] => -0.58619141026122
[state] => LOW TIDE
)
[3] => Array
(
[timestamp] => 1648632761
[datetime] => 2022-03-30T09:32:41+00:00
[height] => 0.51990518493361
[state] => HIGH TIDE
)
[4] => Array
(
[timestamp] => 1648683486
[datetime] => 2022-03-30T23:38:06+00:00
[height] => -0.47962300339067
[state] => LOW TIDE
)
[5] => Array
(
[timestamp] => 1648720492
[datetime] => 2022-03-31T09:54:52+00:00
[height] => 0.42013797028488
[state] => HIGH TIDE
)
[6] => Array
(
[timestamp] => 1648770418
[datetime] => 2022-03-31T23:46:58+00:00
[height] => -0.34142932775531
[state] => LOW TIDE
)
[7] => Array
(
[timestamp] => 1648806960
[datetime] => 2022-04-01T09:56:00+00:00
[height] => 0.30129878818494
[state] => HIGH TIDE
)
**One more example, for Saona island, Dominican republic:
**
[latitude] => 18.1530876
[longitude] => -68.6797264
It looks pretty good until 2nd April (with a tide every about 6hours), but after it seems to miss some high and low tides... Very strange :
[16] => Array
(
[timestamp] => 1648869784
[datetime] => 2022-04-02T03:23:04+00:00
[height] => 0.089493350303962
[state] => HIGH TIDE
)
[17] => Array
(
[timestamp] => 1648927617
[datetime] => 2022-04-02T19:26:57+00:00
[height] => -0.052642306415331
[state] => LOW TIDE
)
[18] => Array
(
[timestamp] => 1648959076
[datetime] => 2022-04-03T04:11:16+00:00
[height] => 0.10233530753627
[state] => HIGH TIDE
)
[19] => Array
(
[timestamp] => 1649014657
[datetime] => 2022-04-03T19:37:37+00:00
[height] => -0.074919229701788
[state] => LOW TIDE
)
[20] => Array
(
[timestamp] => 1649048519
[datetime] => 2022-04-04T05:01:59+00:00
[height] => 0.10832207680381
[state] => HIGH TIDE
)
[21] => Array
(
[timestamp] => 1649101582
[datetime] => 2022-04-04T19:46:22+00:00
[height] => -0.09330840002949
[state] => LOW TIDE
)
[22] => Array
(
[timestamp] => 1649138052
[datetime] => 2022-04-05T05:54:12+00:00
[height] => 0.10936373640266
[state] => HIGH TIDE
)
If you need more example, please ask. I hope you will be able to fix this!
Best regards,
Tony
아래에 의견을 추가하고 토론에 참여하세요.
Hi Tony,
two tides per day could be OK because there are various types of tidal cycles (as diurnal, semi-diurnal and mixed). You can read more for example at https://oceanservice.noaa.gov/education/tutorial_tides/tides07_cycles.html.
First look at the examples you posted seemed OK to me, if you have any other question just let me know here or at api@marea.ooo.
Have a great day!
Vojta