Disappeared: Tide gauges showing negative absolute sea level rise removed from data base

Guest essay by Albert Parker Today I was informed of an alarmist claim about the sea levels of Perth, Western Australia, Australia. It started with this story: “In the next eight years our water level is going to increase by about 25cm, which is much higher than the water level increase for the last 115…

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Hockeystick Redux Chapter Fortyleven

Guest Post by Willis Eschenbach [See update at the end] Since publishing my last two posts here and here on the Church and White (“C&W”) 2011 sea level dataset, some folks have queried why I didn’t use the Church and White 2013 dataset instead. The answer is simple. It’s because of the hockeystick. What hockeystick, you…

The Climate of Gavin

Guest Post by Willis Eschenbach Gavin Schmidt, who I am given to understand is a good computer programmer, is one of the principals at the incongruously named website “RealClimate”. The name is incongruous because they censor anyone who dares to disagree with their revealed wisdom. I bring this up because I’m on Twitter, @WEschenbach. You’re…

Sea level trends, starting points, and datum shifts

A tide gauge record must always start about the time of low ENSO waters and possibly include a datum shift Guest essay by Albert Parker In addition to the case of Aden, discussed in Parker & Ollier (2017) and Parker & O’Sullivan (2018), that is only one of the many where the data proposed by…

Errorless Global Mean Sea Level Rise

Brief Comment by Kip Hansen   Have you ever noticed that whenever NASA or NOAA presents a graph of satellite-era Global Mean Sea Level rise, there are no error bars?  There are no Confidence Intervals?  There is no Uncertainty Range?   In a previous essay on SLR, I annotated the graph at the left to show…

NOAA — Straight Talk on Sea Level Rise

Guest Essay by Kip Hansen   The National Oceanic and Atmospheric Administration has some rather useful features on its web site. One of these is the Tides and Currents which is part of its Center for Operational Oceanographic Products and Services.  Having spent most of the current century living at sea,  with my wife and…