Journal ArticleDOI
The "little ice age": northern hemisphere average observations and model calculations.
TLDR
Forcing with volcanic dust produces the best simulation, whereas expressing the solar constant as a function of the envelope of the sunspot number gives very poor results.Abstract:
Numerical energy balance climate model calculations of the average surface temperature of the Northern Hemisphere for the past 400 years are compared with a new reconstruction of the past climate. Forcing with volcanic dust produces the best simulation, whereas expressing the solar constant as a function of the envelope of the sunspot number gives very poor results.read more
Citations
More filters
Journal ArticleDOI
Volcanic eruptions and climate
TL;DR: In this article, a new capability to predict the climatic response to a large tropical eruption for the succeeding 2 years will prove valuable to society, as well as to detect and attribute anthropogenic influences on climate, including effects of greenhouse gases, aerosols, and ozone-depleting chemicals.
Journal ArticleDOI
Causes of Climate Change Over the Past 1000 Years
TL;DR: A 21st-century global warming projection far exceeds the natural variability of the past 1000 years and is greater than the best estimate of global temperature change for the last interglacial.
Journal ArticleDOI
Climate Impact of Increasing Atmospheric Carbon Dioxide
TL;DR: It is shown that the anthropogenic carbon dioxide warming should emerge from the noise level of natural climate variability by the end of the century, and there is a high probability of warming in the 1980's.
Journal ArticleDOI
Volcanic forcing of climate over the past 1500 years: An improved ice core-based index for climate models
TL;DR: This paper extracted volcanic sulfate signals from each ice core record by applying a high-pass loess filter to the time series and examining peaks that exceed twice the 31-year running median absolute deviation.
Journal ArticleDOI
The Little Ice Age as Recorded in the Stratigraphy of the Tropical Quelccaya Ice Cap
TL;DR: The analyses of two ice cores from a southern tropical ice cap provide a record of climatic conditions over 1000 years for a region where other proxy records are nearly absent and confirms the worldwide character of the Little Ice Age.
References
More filters
Journal ArticleDOI
The Maunder Minimum
TL;DR: In the years around a sunspot maximum there is seldom a day when a number of spots cannot be seen, and often hundreds are present.
Journal ArticleDOI
Volcanic dust in the atmosphere; with a chronology and assessment of its meteorological significance
TL;DR: In this paper, the authors examine aspects of importance, or possible importance, to meteorology, such as the dust veils created in the atmosphere, particle sizes and distribution, heights, fall speeds and atmospheric residence times.
Journal ArticleDOI
Climatic Change: Are We on the Brink of a Pronounced Global Warming?
TL;DR: If man-made dust is unimportant as a major cause of climatic change, then a strong case can be made that the present cooling trend will, within a decade or so, give way to a pronounced warming induced by carbon dioxide.
Journal ArticleDOI
Climate and the changing sun
TL;DR: In this paper, changes in the level of solar activity and in climate are found in historical records and in fossil radiocarbon in tree-rings, and they are compared with a record of world climate, showing that when longterm solar activity falls, mid-latitude glaciers advance and climate cools; at times of high solar activity glaciers recede and climate warms.