Sentences with phrase «decades during the medieval warm period»

That assumption conflicts with studies finding that the Northern Hemisphere was warmer than present for several decades during the Medieval Warm Period and Roman Warm Period and for thousands of years during Holocene Optimum.

Not exact matches

Warmest decades of the Medieval Warm Period, and coolest decades of the Little Ice Age, after re-centering each reconstruction to match the instrumental temperature record during the period of ovPeriod, and coolest decades of the Little Ice Age, after re-centering each reconstruction to match the instrumental temperature record during the period of ovperiod of overlap.

There were no globally synchronous multi-decadal warm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between AD 1580 and 1880, punctuated in some regions by warm decades during the eighteenth centwarm or cold intervals that define a worldwide Medieval Warm Period or Little Ice Age, but all reconstructions show generally cold conditions between AD 1580 and 1880, punctuated in some regions by warm decades during the eighteenth centWarm Period or Little Ice Age, but all reconstructions show generally cold conditions between AD 1580 and 1880, punctuated in some regions by warm decades during the eighteenth centwarm decades during the eighteenth century.

Thus there is a back and forth in global cloudiness as the Sun's activity level changes over the decades and centuries — such as during the period covering the Medieval Warm Period, the Little Ice Age, and the current warm period — through latitudinal shifting of the jet stream tracks and permanent climate period covering the Medieval Warm Period, the Little Ice Age, and the current warm period — through latitudinal shifting of the jet stream tracks and permanent climate zoWarm Period, the Little Ice Age, and the current warm period — through latitudinal shifting of the jet stream tracks and permanent climate Period, the Little Ice Age, and the current warm period — through latitudinal shifting of the jet stream tracks and permanent climate zowarm period — through latitudinal shifting of the jet stream tracks and permanent climate period — through latitudinal shifting of the jet stream tracks and permanent climate zones.

In particular, during the medieval period, ∼ AD 900 — 1300, the Northern Hemisphere experienced temperatures warmer than all but the most recent decades.

One thousand years ago during the Medieval Warm Period, coral thrived in Pacific water masses that were ~ 0.65 ° warmer than in recent decades, then cooled ~ 0.9 °C by the 1700s.