The GRACE graph seems to be nearly linear for 3 years (2017 to 2019?), without the annual increase and decrease seen in all the other years. Doesn't seem like real data, even though it meanders a bit towards the end. Is there an explanation?
GRACE started to die in mid 2017, many years beyond its expected life.
The regular monthly updates from GRACE-FO started from October 2018. Hence the odd bit on the graph for that period. Since my and LibreOffice's graphing skills are limited - that's all, folks.
This is the data for that interregnum (posh word, what?)
YEAR Measure DATE Cumulative Mass Loss
2017.360 -1,631 May-2017 -3045.819
2017.440 -1,640 Jun-2017 -3054.616
2018.455 -1,825 Jun-2018 -3239.049
2018.520 -1,824 Jul-2018 -3238.588
2018.831 -1,915 Oct-2018 -3329.073
2018.873 -1,916 Nov-2018 -3330.541
2018.957 -1,897 Dec-2018 -3311.348
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interregnumnoun
- a period when normal government is suspended, especially between successive reigns or regimes.
- the period in English history from the execution of Charles I in 1649 to the Restoration of Charles II in 1660.
- an interval or pause between two periods of office or other things.
"the interregnum between the discovery of radioactivity and its detailed understanding"