All posts in Reference

AGU100 Linjiong Zhou, Minghua Zhang, Qing Bao, Yimin Liu First published: 05 March 2015 https://doi.org/10.1002/2015GL063239 Abstract Annual incident solar radiation at the top of atmosphere should be independent of longitudes. However, in many Coupled Model Intercomparison Project phase 5 (CMIP5) models, we find that the incident radiation exhibited zonal oscillations, with up to 30 W/m2 of spurious variations. This feature can affect the interpretation of regional climate and diurnal variation of CMIP5 results. This oscillation is also found in the Community Earth System Model. We show that this feature is caused by temporal sampling errors in the calculation of the solar …

by Ernst-Georg Beck, Dipl.Biol. Reprinted from ENERGY & ENVIRONMENT, VOLUME 19 No. 7 2008 Abb. 1: The Keeling Curve, above on the left: Roger Revelle, Gustav Arrhenius and Charles Keeling. On the right the Mauna Loa Observatory at the elevation of 3397 m in an aerial view of the volcano Mauna Loa [1, 2, 3, and 4]. Download PDF This browser does not support PDFs. Please download the PDF to view it..

by Ernst-Georg Beck Reprinted from ENERGY & ENVIRONMENT, VOLUME 18 No. 2 2007 ABSTRACT More than 90,000 accurate chemical analyses of CO2 in air since 1812 are summarised. The historic chemical data reveal that changes in CO2 track changes in temperature, and therefore climate in contrast to the simple, monotonically increasing CO2 trend depicted in the post-1990 literature on climate-change. Since 1812, the CO2 concentration in northern hemispheric air has fluctuated exhibiting three high level maxima around 1825, 1857 and 1942 the latter showing more than 400 ppm. Between 1857 and 1958, the Pettenkofer process was the standard analytical method …