by Judith Curry
Best practices in adapting to sea level rise use a framework suitable for decision making under deep uncertainty.
by Judith Curry
Best practices in adapting to sea level rise use a framework suitable for decision making under deep uncertainty.
Posted in Adaptation, Oceans, Uncertainty
by Judith Curry
New Jersey has a sea level rise problem. How should this be managed?
Posted in Adaptation, Oceans
by Judith Curry
Conclusion from Michael Mann’s new paper: “We conclude that there is no compelling evidence for internal multidecadal oscillations in the climate system.”
by Judith Curry
Peter Webster’s magnum opus is now published: Dynamics of the Tropical Atmosphere and Oceans.
Posted in Oceans
by Judith Curry
“The atmosphere bias of climate science makes it impossible for them to see geological forces and therefore, impossible for them to understand the earth’s climate.” – Thongchai
Posted in Oceans
by Judith Curry
Some recent sea level rise publications, with implications for how we think about the worst case scenario for the 21st century.
Posted in Oceans
by Nic Lewis
*** UPDATE : response to comments by Zeke Hausfather appended
There are a number of statements in Cheng et al. (2019) ‘How fast are the oceans warming’, (‘the paper’) that appear to be mistaken and/or potentially misleading. My analysis of these issues is followed by a reply from the paper’s authors.
Contrary to what the paper indicates:
Posted in climate models, IPCC, Oceans
by Judith Curry
There have several interesting papers on ocean heat content published in recent weeks, with some very important implications.
Posted in Oceans
by Alan Cannell
The new tropical lands: a carbon sink during formation and huge source of carbon dioxide and methane when lost to the sea.
Posted in Oceans
by Judith Curry
I have now completed my assessment of sea level rise and climate change.
Posted in Climate change impacts, Oceans
By Nic Lewis
There have been further interesting developments in this story Continue reading
Posted in Data and observations, Oceans, Uncertainty
By Nic Lewis
Introduction
The Resplandy et al. (2018) ocean heat uptake study (henceforth Resplandy18) is based on measured changes in the O2/N2 ratio of air sampled each year, compared to air stored in high pressure tanks originally sampled in the late 1980s and early 1990s, and in atmospheric CO2 concentration. These are combined to produce an estimate (ΔAPOObs) of changes in atmospheric potential oxygen since 1991 (ΔAPO). They break this series down into four components, including one attributable to ocean warming (ΔAPOClimate). By estimating the other three, they isolate the implied ΔAPOClimate and use it to estimate the change in ocean heat content. In two recent articles, here and here, I set out why I thought the trend in ΔAPOClimate – from which they derived their ocean heat uptake estimate – was overstated, and its uncertainty greatly understated. Continue reading
Posted in Data and observations, Oceans, Uncertainty
by Nic Lewis
In a recent article I set out why I thought that the trend in ΔAPOClimate was overstated, and its uncertainty greatly understated, in the Resplandy et al. ocean heat uptake study. In this article I expand on the brief explanation of the points made about “trend errors” and “scale systematic errors” given in my original article, as these are key issues involved in estimating the trend in ΔAPOClimate and its uncertainty.
Posted in Oceans
by Nic Lewis
Obviously doubtful claims about new research regarding ocean content reveal how unquestioning Nature, climate scientists and the MSM are. Continue reading
Posted in Data and observations, Oceans, Uncertainty
by Judith Curry
A discussion thread to ponder the uncertainties in glacial isostatic adjustment and the implications for past and future sea level rise.
Posted in Oceans
Posted in Climate change impacts, Oceans
by Judith Curry
The concern about sea level rise is driven primarily by projections of future sea level rise.
Posted in Oceans
by Judith Curry
In looking for causes, I have applied the ‘Sherlock Holmes procedure’ of eliminating one suspect after another. The procedure has left us without any good suspect. Thermal expansion was the candidate of choice at the time of the first IPCC review. The computed steric rise is too little, too late, and too linear. – Walter Munk
Posted in Attribution, Oceans
by Jim Steele
A better accounting of natural groundwater discharge is needed to constrain the range of contributions to sea level rise. The greater the contribution from groundwater discharge, the smaller the adjustments used to amplify contributions from meltwater and thermal expansion.
Posted in Attribution, Oceans
by Judith Curry
Part IV of the Climate Etc. series on sea level rise focuses on the satellite era (since 1993), including the recent causes of sea level variations and arguments regarding the acceleration (or not) of recent sea level rise.
Posted in Data and observations, Oceans
By Judith Curry
“We are in the uncomfortable position of extrapolating into the next century without understanding the last.” – Walter Munk
Posted in Data and observations, Oceans
By Judith Curry
Part II of the Climate Etc. series on sea level rise –the geological record provides context for the recent sea level rise.
Posted in Oceans
by Judith Curry
Introduction and context for a new Climate Etc. series on sea level rise.
Posted in Attribution, Climate change impacts, Oceans