Max Berkelhammer, a student of Lowell Stott ( a prominent and excellent researcher on ocean sediments) has been carrying out research on dO18 content of bristlecones in the White Mountains. His website shows that he has an article on this research that has been accepted for G3 and CA readers should pay attention to this […]
I just learned (too late) about an interesting workshop sponsored by the American Statistical Association this weekend in Boulder. The announcement last summer stated: The American Statistical Association (ASA), the nation’s preeminent professional statistical society, today announced it will sponsor a two-day climate change workshop featuring 2025 leading statisticians and atmospheric scientists. The event, sponsored […]
One of the reasons why scientists have been so quick to use tree ring information despite all the problems is that, for the most part, there is excellent dating control on tree ring chronologies, something which can be problematic in other proxies. Today I want to document some notes on dating the Arabian Sea G […]
realclimate apologist Eli Rabett explained at Tamino why real climate scientists haven’t updated the bristlecones: You hike out to the ass end of nowhere, take a core (from the right tree, and bring it back. Now you have to analyze it. . . . . . Sure sounds like a lot of work for a […]
On an earlier occasion, I observed that one of the key Moberg series (and now an essential Juckes series) was the Arabian Sea percentage G. Bulloides series. At the time, I observed that G. Bulloides was an indicator of cold water. In the Arabian Sea, the surface water offshore Oman (where the core used in […]
A non-global warming explanation for the lack of moisture/drought in the US Southwest deals with the lack of Hurricane activity in the Eastern Pacific basin. The moisture, upper-level outflow, and accentuation of the monsoon can all be traced back partially to EPAC storms, which are highly sensitive to SST conditions in the equatorial Pacific (ENSO). […]
As a sort of Methadone replacement for Mann’s bristlecone PC1 (which uses Graybill’s strip bark chronologies), two Esper foxtail chronologies (Upper Wright Lakes and Boreal Plateau) have come into use by the Team. These two chronologies were used separately in the small Esper network (two of only 7 or so medieval chronologies) making a very […]
Until now, most of the surface temperature measurement stations I’ve highlighted as substandard locations for measuring temperature accurately have been in the USA. Today, courtesy of Geoff Sherrington, we are treated to the sight of the main Australian historic site, Melbourne metropolitan, near LaTrobe St, Melbourne. He reports it has max-min temp records daily since […]
Here’s something I meant to post up when AR4 came out. I was reminded of this when Rob Wilson posted recently: Lastly, lets not forget that TR based reconstructions of NH temperatures exist that do not use Bristlecone pine or Foxtail data. Rob’s point here is very disingenuous (to use Mann-speak) since millennial reconstructions are […]
I’ve done an interesting exercise today in which I’ve tried to do an estimated cross-section of Tree 31 – the one with the highly discrepant core widths. Pete has some new pictures and site information that I haven’t seen, so it will be interesting to see how they reconcile.