Category Archives: NCDC

Practicing the Dark Art of Temperature Trend Adjustment

Did Federal Climate Scientists Fudge Temperature Data to Make It Warmer? Ronald Bailey of Reason Magazine writes: The NCDC also notes that all the changes to the record have gone through peer review and have been published in reputable journals. … Continue reading

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Posted in Adjustments/Corrections, NCDC, NOAA, Opinion | 113 Comments

NCDC: ‘our algorithm is working as designed’

In a statement to Polifact today, NCDC made the following statement: “… our algorithm is working as designed” One wonders though, about these sorts of things that have been found wrong in their data file for USHCN, which is represented … Continue reading

Posted in Government idiocy, NCDC, NOAA | 135 Comments

May 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

This post updates the data for the three primary suppliers of global land+ocean surface temperature data—GISS through May 2014 and HADCRUT4 and NCDC through April 2014—and of the two suppliers of satellite-based global lower troposphere temperature data (RSS and UAH) … Continue reading

Posted in Lower Troposphere Temperature, NASA GISS, NCDC, UKMO HADCRUT4 | 244 Comments

April 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

Initial Notes: This is the first monthly update to include lower troposphere temperature (TLT) anomaly data. To make this post as timely as possible, only GISS LOTI and the two lower troposphere temperature datasets are for the most current month. … Continue reading

Posted in Lower Troposphere Temperature, NASA GISS, NCDC, UKMO HADCRUT4 | 29 Comments

On the Differences and Similarities between Global Surface Temperature and Lower Troposphere Temperature Anomaly Datasets

UPDATE: See the correction at the end of the post, which pertained to the discussion of the trend maps in Figures 13 and 14. I’ve crossed out the paragraph between those illustrations that was incorrect. And I’ve corrected a good … Continue reading

Posted in Climate data, Lower Troposphere Temperature, NASA GISS, NCDC, UKMO HADCRUT4 | 61 Comments

March 2014 Global Surface (Land+Ocean) Temperature Anomaly Update

INITIAL QUESTION Once upon a time, the NCDC published its monthly global land+ocean surface temperature anomaly data around the 15th of the month. They have recently relaxed the dates of their monthly global state of the climate updates. The NCDC … Continue reading

Posted in Hiatus in Global Warming, NASA GISS, NCDC, UKMO HADCRUT4 | 43 Comments

GISS LOTI & NCDC Global Temperature Data Drop in February 2014

This post will serve as February 2014 Global Surface (Land+Ocean) Temperature Anomaly Update First GISS: Global surface temperatures, as represented by the GISS Land-Ocean Temperature Index (LOTI) data, dropped about 0.25 deg C from January to February 2014. See Figure … Continue reading

Posted in NASA GISS, NCDC, UKMO HADCRUT4 | 43 Comments

NOAA’s odd way of presenting February temperatures

Harold Ambler writes: NOAA’s map of February temperatures across the United States got New England all wrong. It wasn’t “near normal,” at all, as the people of the region can well attest. Oh, and the data, too: Hartford, CT, as … Continue reading

Posted in NCDC, NOAA, records, Weather | 162 Comments

NOAA: US Cold records outnumber warm records 66 to 1 in the last 7 days

And nearly 3 to 1 in the last 30 days, and over 2 to 1 in 2014 From NOAA/NCDC:  U.S. Records Summary The summaries below list the number of records broken for several recent periods is summarized in this table … Continue reading

Posted in NCDC, NOAA, records, Weather | 43 Comments

January 2014 Global Surface (Land+Ocean) Temperature Anomaly Update

Initial Notes: This post contains graphs of running trends in global surface temperature anomalies for periods of 13+ and 16+ years using GISS global (land+ocean) surface temperature data. They indicate that we have not seen a warming halt and slowdown … Continue reading

Posted in NASA GISS, NCDC, Temperature, UKMO HADCRUT4 | 57 Comments

Why Aren’t Global Surface Temperature Data Produced in Absolute Form?

The title question often appears during discussions of global surface temperatures. That is, GISS, Hadley Centre and NCDC only present their global land+ocean surface temperatures products as anomalies. The questions is: why don’t they produce the global surface temperature products … Continue reading

Posted in Climate data, NASA GISS, NCDC, UKMO HADCRUT4 | 132 Comments

Also-Rans: NCDC and GISS Global Surface Temperatures Finish 4th and 7th for 2013

Not a win, place or show between them. In other words, global surface temperatures are still stalled in the post-1997/98-El-Niño era. They are patiently waiting for another strong El Niño to release a batch of sunlight-created warm water from below … Continue reading

Posted in Global warming, NASA GISS, NCDC, UKMO HADCRUT4 | 38 Comments

November 2013 Russian “Hotspot” – Alarmists Are Overlooking Something

UPDATE: Corrected the typo in Figure 3. 1988 now correctly reads 1989. # # # There’s lots of blogosphere chatter about the warm temperatures in Russia in November 2013. In their global State of the Climate Report this month, NOAA … Continue reading

Posted in Climate FAIL, NCDC | 106 Comments

November 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

In addition to their monthly global land-ocean temperature index (LOTI) data, GISS also lists quarterly and two annual (December to November and January to December) data. (Source here.) The annual GISS December to November LOTI data for 1998 to 2013 … Continue reading

Posted in NASA GISS, NCDC, UKMO HADCRUT4 | 43 Comments

October 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

The following graph is of annual global surface temperature anomalies, including year-to-date 2013 values. The base years for anomalies are 1981-2010. The GISS and NCDC data run through October 2013, and HADCRUT4 runs through September. Annual Through Year-To-Date 2013 It … Continue reading

Posted in NASA GISS, NCDC, UKMO HADCRUT4 | 20 Comments

September 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

Sorry this is so late. The NCDC and GISS updates were delayed by the government shutdown. Because it is so late, it includes the September 2013 HADCRUT4 data from the UKMO. It’s so late I’ve already published the Preliminary October … Continue reading

Posted in Climate data, Hiatus in Global Warming, NASA GISS, NCDC, Temperature, UKMO HADCRUT4 | 26 Comments

August 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

I figured today would be a good day to post this, with David Rose’s article in the “Sunday Mail” Met Office proof that global warming is still ‘on pause’ as climate summit confirms global temperature has stopped rising. This post … Continue reading

Posted in MetOffice, NCDC, Temperature | 18 Comments

A Curious Climate Analogy – Badly Reported by the NYT

Guest essay by Kip Hansen, St Thomas, USVI The AMERICAN METEOROLOGICAL SOCIETY just published a Special Supplement to the Bulletin of the American Meteorological Society titled: EXPLAINING EXTREME EVENTS OF 2012 FROM A CLIMATE PERSPECTIVE edited by Thomas C. Peterson, … Continue reading

Posted in Climate_change, extreme weather, NCDC, NOAA, Opinion | Tagged , , , , | 79 Comments

July 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

My apologies for the delay. I was waiting for the NCDC to update their data webpage here. As of this morning, the NCDC has not updated it, so I used the 0.61 deg C anomaly for July 2013 published in … Continue reading

Posted in Hiatus in Global Warming, NASA GISS, NCDC, UKMO HADCRUT4 | 47 Comments

Why the NOAA Global Temperature Product Doesn’t Comply With WMO Standards

The opening paragraph of NOAA’s press release NCDC Releases June 2013 Global Climate Report begins with alarmist statistics and an error (my boldface): According to NOAA scientists, the globally averaged temperature for June 2013 tied with 2006 as the fifth … Continue reading

Posted in Alarmism, NCDC, Temperature | 62 Comments

June 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

Initial Notes: This post contains graphs of running trends in global surface temperature anomalies for periods of 12+ and 16 years using HADCRUT4 data. They indicate that we have not seen a warming hiatus this long since about 1980. Much … Continue reading

Posted in NASA GISS, NCDC, Temperature, UKMO HADCRUT4 | 71 Comments

Central Park in USHCNv2.5 (October 2012) magically becomes cooler in July in the Dust Bowl years

By Joseph D’Aleo, CCM Remember this story long ago on New York’s Central Park multiple very different data sets to which Steve McIntyre responded here. McIntyre wrote then: …has the temperature of New York City increased in the past 50 … Continue reading

Posted in Climate data, GHCN, NCDC, NOAA, Weather_stations | Tagged , , , , , | 56 Comments

NCDC’s irreconcilable temperatures in the May 2013 State of the Climate Report

NOAA/NCDC just published their State of the Climate Report for May 2013, and in it, are some claims about global temperature that look just plain wrong when compared to other global data sets. They claim: The combined average temperature over … Continue reading

Posted in Climate data, NCDC, NOAA | Tagged , , , , , , , , | 89 Comments

Ocean Heat Content (0 to 2000 Meters) – Why Aren’t Northern Hemisphere Oceans Warming During the ARGO Era?

OVERVIEW Before the ARGO floats were deployed, there were so few temperature and salinity observations at depths below 700 meters that the NODC does not present ocean heat content data during that period for depths of 0-2000 meters on an … Continue reading

Posted in NCDC, Ocean Heat Content | 53 Comments

NCDC omits inconvenient data in public climate releases?

The NCDC Goes Ahistorical Guest post by Ken Meyercord On March 19th last I sent the following email to Derek Arndt, Chief of the Climate Monitoring Branch at the NCDC: “I noticed that on the National Climatic Data Center website … Continue reading

Posted in Climate data, NCDC, NOAA | 33 Comments

February 2013 Global Land+Sea Surface Temperature Anomaly Update

It has been a while since I’ve presented the GISS, UK Met Office and NCDC global land surface air temperature plus sea surface temperature products. I’ve decided to add them to the datasets I update monthly. I’ll present each of … Continue reading

Posted in MetOffice, NASA GISS, NCDC | 58 Comments

NOAA’s Ever-Changing Definition of La Niña Years

UPDATE: I’ve added two illustrations to the end of the post. At the request of blogger “Kurt in Switzerland”, I plotted a comparison of the new and old versions of the Oceanic NINO Index data and posted it in a … Continue reading

Posted in ENSO, NCDC, NOAA | Tagged , , , , , , , | 36 Comments

Is Ocean Heat Content Data All It’s Stacked Up to Be?

Figure 1 Ocean Heat Content data represents the heat stored of the oceans to specified depths. As such, it is an important global warming metric. The Introduction to Levitus et al (2005) begins: Based on the physical properties and mass … Continue reading

Posted in ENSO, Gavin Schmidt, NCDC, Ocean Heat Content, Oceans | 35 Comments

NOAA corrects ‘State of the Climate’ – offers no credit

NOAA Corrects Their 2012 State of the Climate Report – 2012 Was NOT the Warmest La Niña Year on Record Guest post by Bob Tisdale With as little fanfare as possible, NOAA has corrected their erroneous claim in their 2012 State … Continue reading

Posted in ENSO, NCDC, NOAA | Tagged , , , , , , , | 26 Comments

Japan’s ‘Cool Hand Luke’ moment for surface temperature

At NASA’s Climate 365, there is an interesting story posted with this statement and a graph: Some say scientists can’t agree on Earth’s temperature changes Each year, four international science institutions compile temperature data from thousands of stations around the … Continue reading

Posted in Climate data, NASA GISS, NCDC, NOAA | Tagged , , , , , , , , | 122 Comments

NOAA SOTC Claim that 2012 Was Warmest La Nina Year is Wrong

NOAA’s Definition and Data Contradict Their Claim That 2012 Was The Warmest La Niña Year Guest post by Bob Tisdale In the 2012 State of the Climate Report, the National Oceanic and Atmospheric Administration (NOAA) stated (my boldface): 2012 ranked as … Continue reading

Posted in ENSO, Government idiocy, NCDC, NOAA | Tagged , , , , , , , | 18 Comments

Another glitch on the NCDC State of the Climate report

Is NOAA Misleading the Public by Including Tropical Cyclones in its 2012 Climate Extremes Index Ranking? by Bob Tisdale IF NOT, THE PRESS AND PUBLIC WILL CERTAINLY GET THE WRONG IDEA The Summary Information of the NOAA State of the Climate … Continue reading

Posted in NCDC, NOAA | Tagged , , , , , , , | 54 Comments

The ‘secret’ IPCC Stocker WG1 memo – found!

You may recall that WUWT reported this on Sepetember 6th, 2012: Game on – NOAA’s refusal of documents earns them a lawsuit Over the last couple of days, CEI’s Chris Horner has been emailing me news of a FOIA request he … Continue reading

Posted in FOI, IPCC, NCDC, NOAA | Tagged , , , , , , , | 68 Comments

A Different Take on the “Hottest Month on Record.”

Guest post by David Middleton “NCDC Releases July 2012 U.S. Monthly Climate Report: July 2012 Marked the Hottest Month on Record for the Contiguous United States.” The headline was, of course accompanied by nonsense like this… Senior Meteorologist Stu Ostro … Continue reading

Posted in NCDC, NOAA, records, Temperature | 49 Comments

NOAA’s National Climatic Data Center caught cooling the past – modern processed records don’t match paper records

We’ve seen examples time and again of the cooling of the past via homogenization that goes on with GISS, HadCRUT, and other temperature data sets. By cooling the data from the past, the trend/slope of the temperature for the last … Continue reading

Posted in Climate data, NCDC, NOAA | Tagged , , , , , , , | 193 Comments