Tag Archives: global temperature

Southern Hemisphere Climate Data Made Up to Fill Gaps

According to overseers of the long-term instrumental temperature data, the Southern Hemisphere record is “mostly made up”.  This is due to an extremely limited number of available measurements both historically and even presently from the south pole to the equatorial regions. click here for the notrickszone

Ocean Heating and Cooling Affects Global Temperatures

A. Oka and M. Watanabe. The post-2002 global surface warming slowdown caused by the subtropical Southern Ocean heating acceleration. Geophysical Research Letters, DOI: 10.1002/2016GL072184

The warming rate of global mean surface temperature slowed down during 1998–2012. Previous studies pointed out role of increasing ocean heat uptake during this global warming slowdown, but its mechanism remains under discussion. Our numerical simulations, in which wind stress anomaly in the equatorial Pacific is imposed from reanalysis data, suggest that subsurface warming in the equatorial Pacific took place during initial phase of the global warming slowdown (1998–2002), as previously reported. It is newly clarified that the Ekman transport from tropics to subtropics is enhanced during the later phase of the slowdown (after 2002) and enhanced subtropical Ekman downwelling causes accelerated heat storage below depth of 700 m in the subtropical Southern Ocean, leading to the post-2002 global warming slowdown. Observational data of ocean temperature also support this scenario. This study provides clear evidence that deeper parts of the Southern Ocean play a critical role in the post-2002 warming slowdown.

US Temperature Data Tampering Evidence

“NOAA publishes two US temperature data sets – raw and final. In the graph below, the raw (measured) temperature data is shown in blue, the reported (final) data is shown in red, and satellite temperatures of the troposphere over the United States since 1979 are shown in green.” click here

Small TOA Energy-Flux Deviations Impact Global Temperatures

Christopher Hedemann, Thorsten Mauritsen, Johann Jungclaus, Jochem Marotzke. The subtle origins of surface-warming hiatuses. Nature Climate Change (2017) doi:10.1038/nclimate3274

“During the first decade of the twenty-first century, the Earth’s surface warmed more slowly than climate models simulated1. This surface-warming hiatus is attributed by some studies to model errors in external forcing2, 3, 4, while others point to heat rearrangements in the ocean5, 6, 7, 8, 9, 10 caused by internal variability, the timing of which cannot be predicted by the models1. However, observational analyses disagree about which ocean region is responsible11, 12, 13, 14, 15, 16. Here we show that the hiatus could also have been caused by internal variability in the top-of-atmosphere energy imbalance. Energy budgeting for the ocean surface layer over a 100-member historical ensemble reveals that hiatuses are caused by energy-flux deviations as small as 0.08Wm−2, which can originate at the top of the atmosphere, in the ocean, or both. Budgeting with existing observations cannot constrain the origin of the recent hiatus, because the uncertainty in observations dwarfs the small flux deviations that could cause a hiatus. The sensitivity of these flux deviations to the observational dataset and to energy budget choices helps explain why previous studies conflict, and suggests that the origin of the recent hiatus may never be identified.” click here

Global Temperature Pause is Real

From WUWT:

“We’ve been highly critical for some time of the paper in summer 2015 by Karl et al.that claimed “the pause” or hiatus went away once “properly adjusted” ocean surface temperature data was applied to the global surface temperature dataset. Virtually everyone in the climate skeptic community considers Karl et al. little more than a sleight of hand.”

“No matter, this paper published today in Nature Climate Change by Hedemann et al. not only confirms the existence of “the pause” in global temperature, but suggests a cause, saying “…the hiatus could also have been caused by internal variability in the top-of-atmosphere energy imbalance“.” click here

 

Global Warming has no Measurable Effect on Hurricanes

“It is premature to conclude that human activities–and particularly
greenhouse gas emissions that cause global warming–have already had a detectable impact on Atlantic hurricane or global tropical cyclone activity.” click here

Recent Climate-Related Research finds no Evidence of a Global Temperature “Hockey Stick” Increase

“Within the last month, another 14 papers have been published that continue to cast doubt on the popularized conception of an especially unusual global-scale warming during modern times.” Click here for the Notrickszone