Whoa ... 600 of them acquiring all this data, a handful of people here trying to assimilate it?
Eight new buoys. These are CTD types: instrumented wires hanging down holes drilled in the ice to 100 m to record temperature, salinity, conductivity, and water pressure at four depths (rather than continuously like a profiler motoring sensors up and down a wire). Not much on surface except air temperature and nrt GPS. These are
not ice mass balance profilers as they do not measure thickness or temperature of the ice.
These were basically deployed along 85ºN at various longitudes 131-137ºE so make for a very good set of differential drift detectors. We are up to 25 new buoys with GPS plus the PS.
This is really short-sighted of Mosaic not to name these systematically (who thought of 1,2,...8?) Hopefully Meereisportal will correct it but so far they have not. They should be categorized as Ice Beacons, that is 2019B01 etc.The buoys do have IMEI identifiers. No one is listed as contact. They were deployed from 07-11 Oct 19 on but data first surfaced on Oct 15th.
The slow slide show below shows the results these buoys collected so far.
time interval: 10 minutes
latitude longitude (decimal degrees to 1:10,000)
buoy submerged (yes/no)
air temperature_at_surface (degC to tenth degree)
conductivity, salinity, pressure and water temperature at 10m (S/m, psu, hPa)
conductivity, salinity, pressure and water temperature at 20m (S/m, psu, hPa)
conductivity, salinity, pressure and water temperature at 50m (S/m, psu, hPa)*
conductivity, salinity, pressure and water temperature at 75m (S/m, psu, hPa)
conductivity, salinity, pressure and water temperature at 100m (S/m, psu, hPa)
S/m: sieverts per meter
*salinity not reporting
The graphic below has an inset postage stamp of google earth waypoints for the Polarstern made at AWi. The numbers can be scrapped out of text-view from the following snippet of kml:
https://www.awi.de/fileadmin/user_upload/MET/PolarsternCoursePlot/polarstern.kmz<coordinates>
133.6,84.8,0 133.6,84.8,0 133.7,84.8,0 133.7,84.8,0 133.7,84.8,0 133.8,84.8,0 133.8,84.8,0 133.8,84.8,0 133.9,84.8,0 134,84.8,0 134.1,84.8,0 134.1,84.8,0 134.1,84.8,0 134.2,84.8,0 134.2,84.8,0 134.2,84.8,0 134.2,84.8,0 134.2,84.8,0 134.3,84.8,0 134.3,84.8,0 134.3,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.4,84.8,0 134.5,84.8,0 134.5,84.8,0 134.5,84.8,0 134.5,84.8,0 134.5,84.8,0 134.6,84.8,0 134.6,84.8,0 134.6,84.8,0 134.6,84.8,0 134.6,84.8,0 134.7,84.8,0 134.7,84.8,0 134.7,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.8,84.8,0 134.9,84.8,0
</coordinates>
The right hand side shows a crop of the left hand legend corner of all the mosaic multisensor maps. It shows the ship lat/lon position times are quite erratic relative to (not-provided) radar timestamps. This may explain why the red overlay circles are such a clumsy fit to the actual white pixels of the ship -- different times. It's not clear whether the wavy intermediate transparent red track between my green squares (the actual ship displacement on the day stated) follows actual hourly ship GPS waypoints or is just creatively hand-drawn.
The final graphic illustrates the latest meteorology collected on the Polarstern, something that it has been doing for the last 25 years. This data is sent in immediately to be assimilated for ECMWF forecast initialization (and later re-analysis).
The wind angle graphic is not so easy to read but they provide that digitally as well. Mosaic has a plan for 5-day ice motion prediction (SPIDX?) so real near-surface data will be important to that.
https://www.awi.de/fileadmin/user_upload/MET/PolarsternCoursePlot/psobsedat.htmlLast update: Wed Oct 16 11:00:01 UTC 2019
Near real time 1-hourly routine synoptic observations