Search Results for: temperature

New paper suggests historical period estimates of climate sensitivity are not biased low by unusual variability in sea surface temperature patterns

By Nic Lewis An important new paper by Thorsten Mauritsen, Associate Professor at Stockholm University[i] and myself has just been accepted for publication (Lewis and Mauritsen 2020)[ii]. Its abstract reads:

Sea levels, atmospheric pressure and land temperature during glacial maxima

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.

Reconstructing a dataset of observed global temperatures 1950-2016 from human and natural influences

by Frank Bosse A demonstration that multidecadal variation since 1950 leads to overestimation of the Transient Climate Response (TCR).

What are the main sources of heat that account for the incremental rise in temperature on Earth?

by Judith Curry Suggestions for the climate ‘red team’ response.

The Rise and Fall of Central England Temperatures: Part II

by Tony Brown This article examines the continued cooling of CET this century Looks at a similar scenario of regional cooling in America Examines CET related urbanisation issues, and the current Met office allowances for this Notes the centuries long … Continue reading

A case study of the Northern Colorado Front Range temperature history

by Monte Naylor A comparison of NOAA-computed temperature trends with the “raw” historical temperature data.

Uncertainties in sea surface temperatures

by Judith Curry Two new papers have focused on the quality, uncertainties and  interpretation of global sea surface temperature data.

Tamino’s adjusted temperature records and the TCR

by Frank Bosse Separating out the impacts of internal variability on evaluations of TCR.

Assessing atmospheric temperature data sets for climate studies

By Judith Curry It is therefore suggested to use either the more robust tropospheric temperature or ocean surface temperature in studies of climate sensitivity. – Cederlof, Bengtsson, Hodges

Are land + sea temperature averages meaningful?

by Greg Goodman Several of the major datasets that claim to represent “global average surface temperature” are directly or effectively averaging land air temperatures with sea surface temperatures.

Assessing U.S. temperature adjustments using the Climate Reference Network

by Zeke Hausfather Measuring temperatures in the U.S. no easy task. While we have mostly volunteer-run weather station data from across the country going back to the late 1800s, these weather stations were never set up to consistently monitor long-term … Continue reading

Watts et al.: Temperature station siting matters

by Judith Curry 30 year trends of temperature are shown to be lower, using well-sited high quality NOAA weather stations that do not require adjustments to the data.

How sensitive is global temperature to cumulative CO2 emissions?

by Nic Lewis The mean carbon cycle behaviour of CMIP5 ESMs and EMICs may be quite unrealistic.

The rise and fall of Central England Temperature

by Tony Brown Over the last 15 years interesting things have been happening at CET-the world’s longest instrumental record, dating to 1660.

A buoy-only sea surface temperature record

by Zeke Hausfather and Kevin Cowtan A buoy-only sea surface temperature record supports NOAA’s adjustments.

JC op ed: the politics surrounding global temperature data

by Judith Curry My op-ed in Fox News:  Is government tinkering with global warming data?

Regional anomalies in the evolution of surface air temperature

by Judith Curry A discussion of Section 6.1 of Alan Longhurst’s book Doubt and Certainty in Climate Science.

Impact of AMO/PDO on U.S. regional surface temperatures

by Judith Curry The conclusion is that the oscillatory mode (mostly due to the AMO) is significantly more important than the monotonic mode (mostly due to increasing atmospheric CO2) in explaining the 1980–2000 U.S. temperature increase.  – Bruce Kurtz

Taking Melbourne’s temperature

by Tom Quirke The raw Melbourne temperature records of the Bureau of Meteorology are compared to the ACORN-Sat values. The ACORN-Sat adjustments are evaluated. This analysis shows evidence for a strong urban heat island effect.

Temperature adjustments in Australia

by Euan Mearns UK blogger Paul Homewood and Telegraph columnist Christopher Booker have managed to stir public interest in the veracity of adjustments made to temperature records by the Global Historical Climatology Network (GHCN).

Differential temperature trends at the surface and in the lower atmosphere

by Roger Pielke Sr., Phil Klotzbach, John Christy and Dick McNider An update is presented of the analysis of Klotzbach et al. 2009.

Berkeley Earth: raw versus adjusted temperature data

by Robert Rohde, Zeke Hausfather, Steve Mosher Christopher Booker’s recent piece along with a few others have once again raised the issue of adjustments to various temperature series, including those made by Berkeley Earth. And now Booker has double-downed accusing … Continue reading

Will a return of rising temperatures validate the climate models?

by Donald C. Morton The coincidence of the current plateau in global surface temperatures with the continuing rise in the atmospheric concentration of carbon dioxide has raised many questions about the climate models and their forecasts of serious anthropogenic global … Continue reading

Understanding adjustments to temperature data

by Zeke Hausfather There has been much discussion of temperature adjustment of late in both climate blogs and in the media, but not much background on what specific adjustments are being made, why they are being made, and what effects they … Continue reading

NCDC responds to concerns about surface temperature data set

Our algorithm is working as designed. – NOAA NCDC