Sea level is not rising
Professor Nils-Axel Mörner
- At most, global average sea level is rising at a rate equivalent to 2-3 inches per century. It is probably not rising at all.
- Sea level is measured both by tide gauges and, since 1992, by satellite altimetry. One of the keepers of the satellite record told Professor Mörner that the record had been interfered with to show sea level rising, because the raw data from the satellites showed no increase in global sea level at all.
- The raw data from the TOPEX/POSEIDON sea-level satellites, which operated from 1993-2000, shows a slight uptrend in sea level. However, after exclusion of the distorting effects of the Great El Niño Southern Oscillation of 1997/1998, a naturally-occurring event, the sea-level trend is zero.
- The GRACE gravitational-anomaly satellites are able to measure ocean mass, from which sea-level change can be directly calculated. The GRACE data show that sea level fell slightly from 2002-2007.
- These two distinct satellite systems, using very different measurement methods, produced raw data reaching identical conclusions: sea level is barely rising, if at all.
- Sea level is not rising at all in the Maldives, the Laccadives, Tuvalu, India, Bangladesh, French Guyana, Venice, Cuxhaven, Korsør, Saint Paul Island, Qatar, etc.
- In the Maldives, a group of Australian environmental scientists uprooted a 50-year-old tree by the shoreline, aiming to conceal the fact that its location indicated that sea level had not been rising. This is a further indication of political tampering with scientific evidence about sea level.
- Modelling is not a suitable method of determining global sea-level changes, since a proper evaluation depends upon detailed research in multiple locations with widely-differing characteristics. The true facts are to be found in nature itself.
- Since sea level is not rising, the chief ground of concern at the potential effects of anthropogenic “global warming” – that millions of shore-dwellers the world over may be displaced as the oceans expand – is baseless.
- We are facing a very grave, unethical “sea-level-gate”.
Professor to see if he could get his ideas about sea level published in a peer-reviewed scientific journal, his answer won us the debate: “Madame President, I do apologize that in a 40-year career I have only published 530 papers [now 547] in the peer-reviewed literature, most of them about sea level, but in the light of the Hon. Gentleman’s strictures I will undertake to try harder in future.” The House collapsed in helpless laughter…
Originally, it seemed that this extra, unspecified “correction” referred to the global isostatic adjustment, given as 2.4 mm/year (see, for example, Peltier 1998) or 1.8 mm/year (IPCC 2001) The isostatic adjustment is intended to allow for the deformation of the Earth’s crust by tectonic influences. According to Peltier (1998), the zero isobase, which is the reference point for calculating the global isostatic adjustment, passed through Hong Kong, where a single tide gauge gives a sea level rise of 2.3 mm/year relative to the isobase. This is exactly the same as the apparent trend in sea-level rise over the decade 1992-2003 in Fig. 7 . However, this single tide gauge record is an outlier: it is contradicted by the four other records existing in Hong Kong, and obviously represents a site-specific subsidence, a fact well known to local geologists.
Nevertheless, Fig. 7 shows that the keepers of the satellite altimetry record have introduced a new calibration factor – an upward tilt compared with the raw data, which show no real uptrend in sea level. At the Moscow global warming meeting in 2005, in answer to my criticisms about this “correction,” one of the persons in the British IPCC delegation said, “We had to adjust the record, otherwise there would not be any trend.”
There are lots of ways to guesstimate the rise, but only one can be right.
REFERENCES (See the SPPI doc for the full list)_
Mörner, N.-A., 1995, Earth rotation, ocean circulation and paleoclimate. GeoJournal 37:4, 419-430.
Mörner, N.-A., 1996, Sea Level Variability, Z. Geomorphology N.S. 102, 223-232.
Mörner, N.-A., 2004, Estimating future sea level changes, Global and Planetary Change 40, 49-54.
Mörner, N.-A., M.J. Tooley & G. Possnert, 2004, New perspectives for the future of the Maldives, Global & Planetary Change 40, 177-182.
Mörner, N.-A., 2005, Sea-level changes and crustal movements with special aspects on the Mediterranean, Z. Geomorph. N.F. suppl. vol. 137, 91-102.
Mörner, N.-A., 2007a, The Sun rules climate. There’s no danger of global sea level rise, 21st Century Science and Technology, Fall 2007, 31-34.
Mörner, N.-A., 2007b, Sea Level Changes and Tsunamis: Environmental Stress and Migration over the Seas, Internationales Asienforum 38, 353-374.
Mörner, N.-A., 2007c, The Greatest Lie Ever Told, P&G-print (2nd ed., 2009, 3rd ed., 2010).
Mörner, N.-A., 2008, Comments, Global and Planetary Change 62, 219-220.
Mörner, N.-A., 2009, Open letter to the President of the Maldives, New Concepts in Global Tectonics Newsletter 53, 80-83.
Mörner, N.-A., 2010a, Sea level changes in Bangladesh: new observational facts, Energy and Environment 21:3, 249-263.
Mörner, N.-A., 2010b, Some problems in the reconstruction of mean sea level and its changes with time, Quaternary International 221, 3-8.
Mörner, N.-A., 2010c, Solar minima, Earth’s rotation and Little Ice Ages in the past and in the future: the North Atlantic/European case, Global and Planetary Change 72, 282-293.
Mörner, N.-A., 2011a, The Maldives as a measure of sea level and sea level ethics: In Evidence-based Climate Science, D.J. Easterbrook, Ed. [in press], Elsevier.
Mörner, N.-A., 2011b, Setting the frames of expected future sea level changes: In Evidence-based Climate Science, D.J.
Easterbrook, Ed. [in press], Elsevier.
Mörner, N.-A., 2011c, The Great Sardinian Sea Level Excursion [submitted].
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