Fig. 1 |
I. Background
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:
"Greetings,PSMSL responded:
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."
"Dear Dredd
The monthly means within the PSMSL database are supplied by a largenumber 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.
Fig. 2
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).
Fig. 3 |
Fig. 4 |
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).
Fig. 5 |
Fig. 6 |
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.
V. Conclusion
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.
"Americans’ Global Warming Fears At Highest In Nearly A Decade" link
ReplyDeleteDrought, unnamed washout storms, increased sunny day flooding along the coasts, maybe something is wrong?
Delete" And even that surprising quickness is 'accelerating' before our eyes."
ReplyDeleteAnd how!
When 'nature' wants a job 'completed' ( in this case, ice melted) she typically finds the most efficient pathway. And sometimes, these pathways are not visible / understood until their processes are engaged.
"About 15,000 years ago, the ocean around Antarctica has seen an abrupt sea level rise of several meters."
"https://www.uni-bonn.de/news/003-2017/
Well, some of us observers are not at all surprised. It was obvious years ago that a phase-change in global energy imbalance was well underway, leading to only one logical conclusion.
ReplyDeleteIt is also obvious to some of us that this is totally unstoppable now, despite the rhetoric and hand-wringing that is still occurring and in some quarters, just getting started.
And finally, some of us have concluded with what this means for civilization, with increasingly more accurate assessments.
Ultimately, the point being, humanity and the living biosphere is in severe trouble and there is no escaping this.