Glen R. Cass 1947–2001

Aerosol Science and Technology, 2007

Medium, 2025

From Pioneering Satellites to a Youth-Led Space Revolution As we celebrate National Science Day, I reflect on the extraordinary life of Professor Vasagam, a legendary figure synonymous with India's space program. More than just a scientist and educator, he was a visionary who possessed a remarkable ability to foresee the future, a future he tirelessly pursued through the power of technology. This memoir is my heartfelt reverence for his enduring legacy.

Aerosol Science and Technology: History and Reviews

; the back row shows Dale Lundgren and Josef Pich. The background figure is from Chapter 9, Figure 13, illustrating the trimodal atmospheric aerosol volume size distribution. This concept has been the basis of atmospheric aerosol research and regulation since the late 1970s. This publication is part of the RTI Press Book series.

Atmospheric Environment, 2009

Aerosol Science and Technology, 1998

Angewandte Chemie International Edition, 2012

Carsten Reinhardt: How did you become involved in meteorology? Paul Crutzen: I had studied civil engineering. I wanted to be a scientist really. One day I saw an advertisement in a newspaper for a programmer, and I applied for it. I didnt know what a programmer was, but I found out soon enough and got a position at a meteorological institute at the University of Stockholm. At the time it was a Mecca for meteorological research. I applied, and was chosen from 80 applicants-I was lucky. And the best thing was that I was at the university, so apart from the programming I could occasionally go to lectures. That is how I entered the world of academia. Work that I particularly liked was on ozone. […] I began to gain the freedom to carry out science, not just programming, but also thinking about what was going on in the atmosphere. As I was already working on the ozone problem, I expanded on that, and then I discovered the significance of the nitrogen oxides. Nitrogen oxide in the troposphere generates ozone, whereas it destroys ozone in the stratosphere. Bullseye. Furthermore, at the time the supersonic jets were being built that emit NO x , nitrogen oxide. My interest in atmospheric chemistry, and how it takes place in nature, thus took on major significance. I came in as I was successful, and then one has a taste for blood and cant turn back… Reinhardt: When was the first moment for you when you realized, on an atmospheric scale, that climate change exists that is caused by mankind? Was it a surprise for you to discover this? Crutzen: No, I could see the relevance of the nitrogen oxides directly. And I also knew then of the significance for humankind, that dangerous radiation is filtered by ozone. At the time I dedicated my first publication on nitrogen oxides to my wife. I wrote "Lets hope that it doesnt disturb our future too much." Gregor Lax: How was the situation as you moved to the MPI of Chemistry? Crutzen: We were interested in returning to Europe, my wife and I. We had spent six years in the USA, and one day I received a call. That was in 1979, and I was asked whether I would be interested in coming to the Max Planck Society. Reinhardt: How did you find it in Mainz? How was the institute, what was it like? Crutzen: As I came to Mainz, programming and descriptions of models were my interests. You applied for resources, and you got them. I had my first students here at the institute. And many colleagues, and students from Holland, came over, and returned as professors to Holland or became professors here. One of them, Jos Lelieveld, was made my successor, that is, scientific Head of Department. In the meantime there is no longer one section, but rather three, which are involved with atmospheric chemistry, physics, and biogeochemistry. That is how it has developed.

Atmospheric Chemistry and Physics, 2021

Which published papers have transformed our understanding of the chemical processes in the troposphere and shaped the field of atmospheric chemistry? By way of expert solicitation and interactive peer review, this paper explores the influence of the ideas in peer-reviewed articles based on input from our community of atmospheric scientists. We explore how these papers have shaped the development of the field of atmospheric chemistry and identify the major landmarks in the field of atmospheric chemistry through the lens of those papers' impact on science, legislation and environmental events. We also explore the ways in which one can identify the papers that have most impacted the field and discuss the advantages and disadvantages of the various approaches. Our work highlights the difficulty of creating a simple list, and we explore the reasons for this difficulty. The paper also provides a history of the development of our understanding of tropospheric chemistry and points some ways for the future. Guenther et al. (2006) Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature) 4 Jimenez et al. (2009) Evolution of organic aerosols in the atmosphere 5 Atkinson (2000) Atmospheric chemistry of VOCs and NO x 6 Crutzen and Andreae (1990) Biomass burning in the tropics: Impact on atmospheric chemistry and biogeochemical cycles 7 Van Der Werf et al. (2010) Global fire emissions and the contribution of deforestation, savanna, forest, agricultural, and peat fires (1997-2009) 8 Atkinson and Arey (2003) Atmospheric Degradation of Volatile Organic Compounds 9 Grell et al. (2005) Fully coupled "online" chemistry within the WRF model 10 Lelieveld et al. (2015) The contribution of outdoor air pollution sources to premature mortality on a global scale (Web of Science, 27/3/20) 1 Ramanathan et al. (2001) Atmosphere-Aerosols, climate, and the hydrological cycle 2 Andreae and Merlet (2001) Emission of trace gases and aerosols from biomass burning 3 Hallquist et al. (2009) The formation, properties and impact of secondary organic aerosol: current and emerging issues 4 Jimenez et al. (2009) Evolution of organic aerosols in the atmosphere 5 Crutzen and Andreae (1990) Biomass burning in the tropics: Impact on atmospheric chemistry and biogeochemical cycles 6 Atkinson (2000) Atmospheric chemistry of VOCs and NO x 7 Atkinson et al. (1992) Evaluated Kinetic and Photochemical Data for Atmospheric Chemistry: Supplement IV. IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry 8 Grell et al. (2005) Fully coupled "online" chemistry within the WRF model 9 Lelieveld et al. (2015) The contribution of outdoor air pollution sources to premature mortality on a global scale 10 Bey et al. (2001) Global modelling of tropospheric chemistry with assimilated meteorology: Model description and evaluation * For more details on the UK/EU perspective see Williams (2004) and Maynard and Williams (2018), and for the USA perspective see Jacobson (2002); see also Monks and Williams (2020).

Journal of Exposure Analysis and Environmental Epidemiology, 2003