In a recent post (PSMSL Update - 2) I mentioned that data on tide gauge stations around the world was sparse for 2015-2016.
I contacted PSMSL by email, writing:
I am an avid fan of PSMSL. The current download ("02 Jan 2017") does not have many stations with 2016 data.Are all those stations offline ... not reporting to you any more?Or am I missing something ... no pun intended.
Thank you in advance for your help."
The monthly means within the PSMSL database are supplied by a large
number of dedicated data suppliers. Before forwarding the sea level data to us these authorities are required to quality control the data. This can take time. Hence the PSMSL is still receiving data values from 2015. The sea level data for 2016 will be available as it is supplied to us. Our top priority is to release the data values to users as soon as possible so the 2016 data will be available from our website as soon as we receive the data.
I hope that clarifies the situation."
II. While Waiting For PSMSL Updates ...
I got the idea to try to find a database from NSIDC that contained the dataset of the Arctic and Antarctic sea-ice, and was successful (NSIDC Antarctic, NSIDC Arctic).
III. Benefits of Datasets
In today's post I will show some of the benefits of having the datasets, rather than relying exclusively on the graph styles already available online (such as Fig. 7).
IV. Variations on Graphs
As shown in Fig. 1 - Fig. 6, we can use the datasets to look at the same data in different ways.
|Fig. 7 As of January 17, 2017|
The graph at Fig. 3 shows the current year, 2017, in a way that clearly depicts how anomalously low the sea ice extent is for this time of year.
And it does so in the linear format of Fig. 1 and Fig. 6.
We can also present the data in the NSIDC format (Fig. 7) with the large curvy lines showing the annual oscillation during winter as compared to summer as shown in Fig. 2, Fig. 4, and Fig. 5.
I hope to be able to present some Antarctic dataset graphs in the next day or so.
No matter how we look at these datasets, the message coming through to current civilization is loud and clear.
The sea ice is in global warming induced transition.
It is going extinct in a historically slow, but consistent rate.
Not only that, it is doing so way before the close observers thought it would.
And even that surprising quickness is accelerating before our very eyes.
The next post in this series is here, the previous post in this series is here.