BTW - Robot wrote on Jun 29^th, 2019 at 9:17pm:


Excerpt -

"This reconstruction is the first to show a distinct Roman Warm Period c. ad 1–300, reaching up to the 1961–1990 mean temperature level, followed by the Dark Age Cold Period c. ad 300–800. The Medieval Warm Period is seen c. ad 800–1300 and the Little Ice Age is clearly visible c. ad 1300–1900, followed by a rapid temperature increase in the twentieth century. The highest average temperatures in the reconstruction are encountered in the mid to late tenth century and the lowest in the late seventeenth century. Decadal mean temperatures seem to have reached or exceeded the 1961–1990 mean temperature level during substantial parts of the Roman Warm Period and the Medieval Warm Period."

Are you sure you have read or understood the paper? is that why you want graphical interpretation?

A look at papers that  focus on the MWP -

https://www.google.com/maps/d/viewer?mid=1akI_yGSUlO_qEvrmrIYv9kHknq4&ll=-47.110...

Robot wrote on Jul 1^st, 2019 at 12:34am:


So you have proxy data with the attendant error bars and thermometer reconstructions?

"The decadal mean temperatures in the extratropical Northern Hemisphere seem to have equalled or exceeded the AD 1961–1990 mean temperature level during much of the Roman Warm Period and the Medieval Warm Period. The temperature since AD 1990 is, however, possibly higher than during any previous time in the past two millennia if we look at the CRUTEM3+HadSST2 90–30°N instrumental temperature data (Brohan et al. 2006; Rayner et al. 2006) spliced to the proxy reconstruction. "

Hardly definitive.

Robot wrote on Jul 1^st, 2019 at 12:34am:


PERHAPS.

"Despite significant improvement in our understanding of the temperature variability during the past one or two millennia, especially for the Northern Hemisphere, the controversial question whether Medieval Warm Period peak temperatures exceeded present temperatures remains unanswered. IPCC (2007) and NRC (2006) concluded that the data coverage still is too limited and unevenly distributed around the globe to say anything with reasonable certainty about temperatures on a global or hemispheric scale prior to c. AD 1600. The amplitude of the multi-decadal to centennial preindustrial temperature variability constitutes a major uncertainty. The estimate of this variability ranges from c. 0.2 to 1°C in the different reconstructions. "

Robot wrote on Jul 1^st, 2019 at 12:34am:


" The amplitude of the temperature variability between the warmest and coldest century
(prior to the twentieth century) in our reconstruction is 0.62°C. As a comparison, this amplitude is 0.22°C in Mann and Jones (2003), 0.58°C in Moberg et al. (2005), and 0.51°C in the ‘error-invariables’ "

Yep really close.

All that money wasted on "climate change" studies.

What caused the temperature anomaly drop between 1960 and 1970?

John_Taverner wrote on Jul 8^th, 2019 at 2:24pm:


No petal.You?

Did they really have thermometers in the 10-12th century?

Johnnie wrote on Jul 27^th, 2019 at 7:00pm:


Poor petal. Just so loves the ACORN2 adjusted "data".