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Author Topic: What the Buoys are telling  (Read 700425 times)

uniquorn

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Re: What the Buoys are telling
« Reply #1950 on: August 12, 2020, 09:13:16 PM »
t74, melted out, jul15-aug10
t75, melted out, jul15-aug7
t76, looks like big melt pond, jul15-21
t79, jul15-31

« Last Edit: August 12, 2020, 09:18:50 PM by uniquorn »

uniquorn

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Re: What the Buoys are telling
« Reply #1951 on: August 12, 2020, 09:41:51 PM »
Tbuoy drift and locations, some final.

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Re: What the Buoys are telling
« Reply #1952 on: August 13, 2020, 12:13:44 AM »
whoi ftp server is back up again. Many thanks to Rick Krishfield for that :)
Here is itp114, day213-225, after the last high drift speed event. 7-40m temps varying ~0.2C. Larger variations at 70m.

uniquorn

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Re: What the Buoys are telling
« Reply #1953 on: September 26, 2020, 03:12:36 PM »
Mosaic T78 and T81 at 89.6N both almost flatlining again at ocean temperature.

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Re: What the Buoys are telling
« Reply #1954 on: September 26, 2020, 05:27:25 PM »

uniquorn

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Re: What the Buoys are telling
« Reply #1955 on: September 27, 2020, 01:17:03 PM »
experimental large presentation of the last 6days of iabp buoys showing overview and close up (by zooming and scrolling). whoi itp buoys haven't updated on iabp since sep21.
updated below
« Last Edit: September 29, 2020, 01:00:15 AM by uniquorn »

uniquorn

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Re: What the Buoys are telling
« Reply #1956 on: September 27, 2020, 11:23:55 PM »
Ignatius Rigor from the IABP talks about testing buoy sensors and buoy deployment.
http://www.apl.washington.edu/project/project.php?id=arctic_buoys

« Last Edit: September 27, 2020, 11:43:57 PM by uniquorn »

uniquorn

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Re: What the Buoys are telling
« Reply #1957 on: September 29, 2020, 12:40:04 AM »
great. Thanks to Ignatius and Wendy, WHOI itp buoys are back on IABP. So here is a larger presentation showing overview and close up. It's one day shorter to keep file size down. This is probably close enough to show inertial oscillations. A bit like osi-saf on steroids.
itp103 looks very straight
updated below
« Last Edit: September 30, 2020, 12:02:48 AM by uniquorn »

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Re: What the Buoys are telling
« Reply #1958 on: September 29, 2020, 12:56:27 PM »
T78 and T81 temperature charts at ~89.3N today

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Re: What the Buoys are telling
« Reply #1959 on: September 29, 2020, 11:39:16 PM »
iabp buoy drift update, 5days. I think this will be the size, just need to think about the crop.
itp120 and 121 not on iabp yet

drift speeds of the first 5 buoys
« Last Edit: September 30, 2020, 12:05:15 AM by uniquorn »

uniquorn

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Re: What the Buoys are telling
« Reply #1960 on: October 03, 2020, 11:06:09 PM »
iabp drift update
whoi buoys not updated again

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Re: What the Buoys are telling
« Reply #1961 on: October 05, 2020, 09:36:13 PM »
buoys north of 45N, apr-oct. Best viewed at half speed.
moved to test space
« Last Edit: October 05, 2020, 09:50:21 PM by uniquorn »

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Re: What the Buoys are telling
« Reply #1962 on: October 08, 2020, 07:10:06 PM »
iabp drift update with surface temperatures (where available) roughly every 3hrs, oct3-8
click twice and scroll
edit: some reported temperatures look questionable
« Last Edit: October 08, 2020, 09:02:33 PM by uniquorn »

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Re: What the Buoys are telling
« Reply #1963 on: October 14, 2020, 10:12:41 PM »
overview of 50m temperature from whoi itp buoys, 2006-2020.

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Re: What the Buoys are telling
« Reply #1964 on: October 15, 2020, 10:48:20 PM »
A closer look at the Atlantic side temperatures at 80m depth. Max temp has been capped at -0.8C to show detail along the transpolar drift line. This means that some data is not shown fully at the Yermak plateau. I plan to look at that in more detail later.
« Last Edit: October 15, 2020, 10:56:44 PM by uniquorn »

A-Team

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Re: What the Buoys are telling
« Reply #1965 on: October 16, 2020, 12:26:10 AM »
Quote
A closer look at the Atlantic side temperatures at 80m depth
Amazing. From Sept 2006 on! Has anyone has ever put buoy data together across projects before?

A wake version might have some advantages in synchronicity as the older tracks fade out rather than pile up. Normally kriging would be used as the interpolative technique to infill temperatures between the buoys into a continuously colored field. Here it would have to be time-dependent kriging(t). However, it seems like just thickening buoy tracks accomplishes this more easily with variable wake retention time windowing (discretizing) the approximation to kriging(t).

Calendar cyclicity might also be informative. Here tracks would only appear at their designated day number regardless of year. Some confusion might arise for multi-year buoys. Even at 80m, there may be seasonality trends in temperature in locations with tidal or near-inertial turbulence.

It is just two quick sorts if the current ordering has separate IMEI year month day columns.

« Last Edit: October 16, 2020, 12:38:53 AM by A-Team »

uniquorn

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Re: What the Buoys are telling
« Reply #1966 on: October 16, 2020, 09:07:22 PM »
something like splitting seasons at day265. Working on that