Search Results for: berkeley best

Berkeley “Very Rural” Data

Richard Muller sent me the BEST list of “very rural” sites – see I took a quick look at the “very rural” stations in two tropical countries – Peru and Thailand – in order to groundtruth their classification methodology. These two examples were chosen because several years ago, I looked at Hansen’s “rural” Peru […]

BEST Data “Quality”

CA CA reader Gary Wescom writes about more data quality problems with the Berkeley temperature study – see here. In a surprising number of records, the “seasonally adjusted” station data in the Berekely archive contains wildly incorrect data. Gary shows a number of cases, one of which, Longmont 2ESE, outside the nest of climate scientists […]

Closing Thoughts on BEST

In the 1980s, John Christy and Roy Spencer revolutionized the measurement of temperature data through satellite measurement of oxygen radiance in the atmosphere. This accomplishment sidestepped the intractable problems of creating (what I’ll call) a “temperature reconstruction” from surface data known to be systemically contaminated (in unknown amounts) by urbanization, land use changes, station location […]

Lampasas in BEST

A couple of years ago, Anthony observed a gross discontinuity at Lampasas TX arising from a change in station location. Let’s see how the Berkeley algorithm deals with this gross discontinuity.

Detroit Lakes in BEST

In the 2007 analysis of the GISS dataset, Detroit Lakes was used as a test case. (See prior posts on this station here). I’ve revisited it in the BEST data set, comparing it to the older USHCN data that I have on hand from a few years ago. First, here is a simple plot of […]

Some BEST Tools

Here’s a major complaint about BEST now that I’ve looked at it more closely. If BEST wanted to make their work as widely available as possible, then they should have done their statistical programming in R so that it was available in a public language. And made their data available as organized R-objects. I’ve taken […]

First Thoughts on BEST

Rich Muller sent me the BEST papers about 10 days ago so that I would have an opportunity to look at them prior to their public release. Unfortunately, I’ve been very busy on other matters in the past week and wasn’t able to get to it right away and still haven’t had an opportunity to […]

The effect of Atlantic internal variability on TCR estimation – an unfinished study

A guest article by Frank Bosse (posted by Nic Lewis) A recent paper by the authors Stolpe, Medhaug and Knutti (thereafter S. 17) deals with a longstanding question: By how much are the Global Mean Surface Temperatures (GMST) influenced by the internal variability of the Atlantic (AMV/AMO) and the Pacific (PMV/PDO/IPO)? The authors analyze the […]

Are energy budget TCR estimates biased low, as Richardson et al (2016) claim?

A guest post by Nic Lewis   Introduction and Summary In a recently published paper (REA16),[1] Mark Richardson et al. claim that recent observation-based energy budget estimates of the Earth’s transient climate response (TCR) are biased substantially low, with the true value some 24% higher. This claim is based purely on simulations by CMIP5 climate […]

Surface Stations

People have quite reasonably asked about my connection with the surface stations article, given my puzzlement at Anthony’s announcement last week. Anthony described my last-minute involvement here. As readers are probably aware, I haven’t taken much issue with temperature data other than pressing the field to be more transparent. The satellite data seems quite convincing […]