On 07/12/2017 22:01, John Hall wrote:
In message , N_Cook writes
On 07/12/2017 20:22, Stephen Davenport wrote:
At least through the 1980s the convention at the Met Office was to
label midnight as 00:01 Z.

Stephen.


NTSLF cant even get the top of each hour right.
eg
http://www.ntslf.org/data/realtime?port=Portsmouth
come relaying the tidegauge readings for say 22:00 tonight , their www
clock will say 21:60

Good grief! If they can't even get that right, what confidence can one
have that they are reporting the gauge readings correctly?

Its been like that since they started, this morning I just checked and
08:00 was 07:60.
Of more concern is the so often repeated crapping out of the tide gauges
just when you need them, at the onset of a surge.
Bubbler gauges were supposed to be immune from the weather effects on
float types. From a top oceanographer, that crapouting is due to
problems in the software/firmware, or even rapid air pressure changes
from the compensator sensor. The bubbler system works fine throughout
apparently. He did not go into detail, but its probably due to waves
from the storm usually associated with a surge, inducing high frequency
pressure changes, that the firmware interprets as interference and dumps
the data, recording nulls .