The problems of temperature homogenization: Investigating NOAA’s temperature adjustments

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Apr 222025

In this clip from Ep. 2 of the CERES Podcast, we will look at the “homogenization adjustments” that the various groups (especially NOAA) compiling global temperature records apply to the weather records before using them. We show how these adjustments are introducing non-climatic biases into the temperature data. 🔹 🔹 🔹 🔹 Chapters: 00:00:00 The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data 00:11:02 Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”) 00:18:23 Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022) 00:29:57 Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023) 🔹 🔹 🔹 🔹 ⭐ If you want to support the work of CERES, please visit us at https://www.ceres-science.com/support-us 🔹For more about Dr. Ronan Connolly & links to his social media channels, visit https://ronanconnollyscience.com/ 🔹 🔹 🔹 🔹 Relevant Links: ⭐ The “temperature homogenization” problem ❶ Our critique of NASA GISS’s “urbanization adjustments”: Connolly & Connolly (2014) OPRJ working paper. http://oprj.net/articles/climate-scie.... Also available on ResearchGate at http://dx.doi.org/10.13140/RG.2.2.105... ❷ Our analysis of NOAA’s adjustments to 800 European stations: O’Neill et al. (2022). https://doi.org/10.3390/atmos13020285 ❸ Our urban blending paper: Katata et al. (2023). https://doi.org/10.1175/JAMC-D-22-0122.1 Link to the full episode: • Using penguin poop to study climate; ... 🔹 🔹 🔹 🔹 🚩 Disclaimer: Some of the scientific opinions expressed in this video disagree with those of the latest UN Intergovernmental Panel on Climate Change (IPCC) reports and several other scientific bodies. The current policies of many social media platforms emphasize that when providing educational, documentary, scientific or artistic content discussing climate change, context for any such disagreements should be provided. For such context: • Youtube recommends https://www.un.org/en/climatechange/w... • Facebook recommends / climate_science_information_center • Alternatively, to view the latest IPCC reports, visit https://www.ipcc.ch

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

0:00

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

11:02

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

18:23

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

29:57

Transcript

Follow along using the transcript.

CERES Science

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Using weather balloons to study the Earth’s atmosphere: the new concept of molar density

by CERES Science

Climate change

The problems of temperature homogenization: Investigating NOAA’s temperature adjustments

Chapters View all

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

CERES Science

The problems of temperature homogenization: Investigating NOAA’s temperature adjustments

Comments 5

Chapters

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

Description

Chapters View all

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

The “temperature homogenization” approach used by NOAA, NASA, etc., to adjust the global temperature data

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Ronan & Michael’s February 2015 meeting with the NASA GISS lead scientist to discuss the problems with NASA’s global temperature record (“GISTEMP”)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our evaluation of NOAA’s homogenization adjustments to 800 European weather station records (O’Neill et al., 2022)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

Our analysis of the “urban blending” problem of current temperature homogenization adjustments (Katata et al. 2023)

CERES Science

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