This is interesting. It appears that a “pause” has developed in global sea levels. For two years, since July 2015, there has been no sustained increase in global sea level, in fact, it appears to have actually fallen a bit. This graph, provided by NASA’s Global Climate Change website, tells the story:
A zoom of the area of interest, two years prior to the most recent data point.
Source for both graphs: https://climate.nasa.gov/vital-signs/sea-level/
The satellite derived sea level data is also available here: ftp://podaac.jpl.nasa.gov/allData/merged_alt/L2/TP_J1_OSTM/global_mean_sea_level/GMSL_TPJAOS_V4_199209_201708.txt
NASA says on that website:
Sea level rise is caused primarily by two factors related to global warming: the added water from melting ice sheets and glaciers and the expansion of sea water as it warms. The first graph tracks the change in sea level since 1993 as observed by satellites.
Hmmm, I think they left something out of that description.
The other source for sea level data, at the University of Colorado, also shows a pause, though they have not yet updated their data for 2017:
What I found most interesting on the UC sea level page was this graph, showing the correlation of El Niño Southern Oscillation (ENSO) and global sea level. [Readers] may recall that in 2015, there was a massive spike of an El Niño event:
The correlation between ENSO and sea level seems strong.
Note this image from a NASA Visualization Video, which shows water piling up in the Western Pacific over the past 22 years. Wind pattern shifts are a signature of ENSO events, and they push water westward where it piles up.
Here is another projection of the same data, showing that water has been piling up in the Western Pacific:
I wonder what the rate of sea level rise would look like is we masked out El Nino events? I’m guessing it would be far, far, less than what is being claimed as “global”.