scholarly journals Interactions between the atmosphere, cryosphere, and ecosystems at northern high latitudes

2019 ◽  
Vol 19 (3) ◽  
pp. 2015-2061 ◽  
Author(s):  
Michael Boy ◽  
Erik S. Thomson ◽  
Juan-C. Acosta Navarro ◽  
Olafur Arnalds ◽  
Ekaterina Batchvarova ◽  
...  

Abstract. The Nordic Centre of Excellence CRAICC (Cryosphere–Atmosphere Interactions in a Changing Arctic Climate), funded by NordForsk in the years 2011–2016, is the largest joint Nordic research and innovation initiative to date, aiming to strengthen research and innovation regarding climate change issues in the Nordic region. CRAICC gathered more than 100 scientists from all Nordic countries in a virtual centre with the objectives of identifying and quantifying the major processes controlling Arctic warming and related feedback mechanisms, outlining strategies to mitigate Arctic warming, and developing Nordic Earth system modelling with a focus on short-lived climate forcers (SLCFs), including natural and anthropogenic aerosols. The outcome of CRAICC is reflected in more than 150 peer-reviewed scientific publications, most of which are in the CRAICC special issue of the journal Atmospheric Chemistry and Physics. This paper presents an overview of the main scientific topics investigated in the centre and provides the reader with a state-of-the-art comprehensive summary of what has been achieved in CRAICC with links to the particular publications for further detail. Faced with a vast amount of scientific discovery, we do not claim to completely summarize the results from CRAICC within this paper, but rather concentrate here on the main results which are related to feedback loops in climate change–cryosphere interactions that affect Arctic amplification.

2018 ◽  
Author(s):  
Michael Boy ◽  
Erik S. Thomson ◽  
Juan-C. Acosta Navarro ◽  
Olafur Arnalds ◽  
Ekaterina Batchvarova ◽  
...  

Abstract. The Nordic Centre of Excellence CRAICC (CRyosphere-Atmosphere Interactions in a Changing Arctic Climate), funded by NordForsk in the years 2011–2016, was the largest joint Nordic research and innovation initiative to date, aiming to strengthen research and innovation regarding climate change issues in the Nordic Region. CRAICC gathered more than 100 scientists from all Nordic countries in a virtual Centre with the objectives to identify and quantify the major processes controlling Arctic warming and related feedback mechanisms, to outline strategies to mitigate Arctic warming and to develop Nordic Earth System modelling with a focus on the short-lived climate forcers (SLCF), including natural and anthropogenic aerosols. The outcome of CRAICC is reflected in more than 150 peer-reviewed scientific publications, most of which are in the CRAICC special-issue of the journal Atmospheric Chemistry and Physics. This manuscript presents an overview on the main scientific topics investigated in the Centre and provides the reader a state-of-the-art comprehensive summary of what has been achieved in CRAICC with links to the particular publications for further detail. Facing the vast amount of outcomes we are not claiming to cover all results from CRAICC in this manuscript but concentrate here on the main results which are related to the feedback loops in the climate change-cryosphere interaction scheme affecting the Arctic amplification.


2020 ◽  
Author(s):  
Argyro Nisantzi ◽  
Rodanthi-Elisavet Mamouri ◽  
Silas Michaelides ◽  
Albert Ansmann ◽  
Johannes Bühl ◽  
...  

<p>The Mediterranean Basin is well recognized by IPCC as a hot spot for climate change. Severe consequences are expected for the future in the Eastern Mediterranean, the Middle East and North Africa (EMMENA) region.</p><p>The increased urbanization, high pollution, dust storms and decreasing precipitation in the region dramatically affect climate change. Current prediction models for weather, climate, and environment are based on sophisticated modeling in close connection with state-of-the-art observations.</p><p>A modern observational super-site in Cyprus is of fundamental importance to understanding the atmospheric system in the EMMENA region. The presence of such a super site will be able to effectively monitor atmospheric conditions and provide relevant data for atmospheric prediction modeling.</p><p>This contribution reports on the recent progress regarding the buildup of a permanent, state-of-the-art atmospheric remote sensing station in Limassol, Cyprus. Through the EU H2020 Teaming project EXCELSIOR, the ERATOSTHENES Centre of Excellence (ECoE) will be established as a Centre of Excellence for Earth Surveillance and Space-Based Monitoring of the Environment.</p><p>The ECoE modern in-situ observational super site will be established in Cyprus for long-term profiling of the atmosphere, including wind, humidity, aerosol and cloud properties and precipitation fields. The ECoE will be fully in line with ESFRI networks, such as ACTRIS, as it will utilize state-of-the-art infrastructure and techniques to provide cutting-edge data regarding atmospheric processes.</p><p>As a demonstration initiative, an 18-month field campaign (Cy-CARE (Cyprus Cloud Aerosol and pRecipitation Experiment)) has been designed by the Leibniz Institute for Tropospheric Research (TROPOS) and was implemented by the ERATOSTHENES group at Cyprus University of Technology (CUT) between October 2016 and March 2018, with the main focus on lidar/radar-based studies of aerosol-cloud-precipitation relationships. Case studies of the Cy-CARE campaign will be presented to demonstrate the importance of the ground based atmospheric remote sensing observations in the region.</p><p>Acknowledgements</p><p>The authors acknowledge the EXCELSIOR project that received funding from the European Union [H2020-WIDESPREAD-04-2017:Teaming Phase2] project under grant agreement no. 857510, and from the Republic of Cyprus. CUT team acknowledge ACTRIS-2 project (H2020-INFRAIA-2014-2015, GA no. 654109) and the Research and Innovation Foundation of Cyprus for the financial support through the SIROCCO (EXCELLENCE/1216/0217) and AQ-SERVE (INTERGRATED/0916/0016) projects.</p>


Author(s):  
Paolo Lauriola ◽  
Alice Serafini ◽  
Mariagrazia Santamaria ◽  
Stefano Guicciardi ◽  
Peter K. Kurotschka ◽  
...  

2010 ◽  
Vol 54 (2) ◽  
pp. 159-183
Author(s):  
Kola Odeku ◽  
Edson Meyer

AbstractThis article examines how the South African government, realizing the country's vulnerability to climate change, deemed it necessary to strengthen adaptation and mitigation measures and put in place legal and institutional frameworks to ensure implementation and compliance. Government must take responsibility for industry's inaction by implementing policies on climate change and, more importantly, through a visible change in government policy to hold industry accountable. The stringent policies and strategies being put in place are reducing vulnerability and also enhancing a broad spectrum of capacity in responding to environmental, climatic, resource and economic perturbations. The article further reviews state of the art methods and tools available to strengthen mitigation and adaptation strategies and measures in the areas of the existing frameworks regarding climate change. It also considers various measures by Eskom in particular, and strategies embarked upon by South Africa's national and local governments to reduce greenhouse gas emissions.


MaRBLe ◽  
2019 ◽  
Vol 1 ◽  
Author(s):  
Roelien Van der Wel

This paper discusses different strategies of climate change denial and focusses on the specific case of Dutch politician Thierry Baudet. Much of the literature concerning climate change denial focusses on Anglo-American cases, therefore more research non-English speaking countries is necessary. The theoretical framework describes the state of the art concerning climate change denialism and its links to occurring phenomena in Western societies and politics such as post-truth and populism. Afterwards, by conducting a deductive analysis of  Thierry Baudet’s climate denialism in the Netherlands, a more thorough understanding of the different strategies proposed by Stefan Rahmstorf  and Engels et al. is reached. Although all four categories are detected in Baudet’s denialism, consensus denial seems to be the most prevalent. The analysis of his usage of the notion of a climate apocalypse, combined with the analysis of his specific focus on consensus denial, broadens the understanding of how climate change denial can relate to populism. 


2011 ◽  
Vol 10 (02) ◽  
pp. A03 ◽  
Author(s):  
Gunver Lystbæk Vestergård

A significant number of mass media news stories on climate change quote scientific publications. However, the journalistic process of popularizing scientific research regarding climate change has been profoundly criticized for being manipulative and inaccurate. This preliminary study used content analysis to examine the accuracy of Danish high quality newspapers in quoting scientific publications from 1997 to 2009. Out of 88 articles, 46 contained inaccuracies though the majority was found to be insignificant and random. The study concludes that Danish broadsheet newspapers are ‘moderately inaccurate’ in quoting science publications but are not deliberately hyping scientific claims. However, the study also shows that 11% contained confusion of source, meaning that statements originating from press material or other news outlets were incorrectly credited to scientific peer-reviewed publications.


2022 ◽  
pp. 952-974
Author(s):  
Sara Costa Carvalho ◽  
Pablo Meira Ángel Cartea ◽  
Ulisses M. Azeiteiro

This chapter is dedicated to the food-heritage-education for climate emergency trinomial (FoHECE). It disseminates a study in the Euroregion of Eixo Atlântico. This Euroregion (Galicia, Spain and Northern Portugal) has been a victim of climate change (CC) due to drought. The project consisted of a participatory-action-research (PAR) with a set of environmental education facilities (EEF) that promote the connection local heritage-global reality. The main objective of the study was to help re-signifying activities in education for climate emergency based on dietary styles. Thus, a pedagogical activity was created with each facility, according to the PAR methodology, to sub-themes of the diet-CC binomial (e.g,. types of food consumed, origin, type of production, presentation) and to food aspects of each EEF surrounding. In addition to the state-of-the-art review on FoHECE, results are discussed, and recommendations are suggested for future approaches and adaptations of this methodology to other contexts.


2017 ◽  
Author(s):  
Michail Alvanos ◽  
Theodoros Christoudias

Abstract. This paper presents an application of GPU accelerators in Earth system modelling. We focus on atmospheric chemical kinetics, one of the most computationally intensive tasks in climate-chemistry model simulations. We developed a software package that automatically generates CUDA kernels to numerically integrate atmospheric chemical kinetics in the global climate model ECHAM/MESSy Atmospheric Chemistry (EMAC), used to study climate change and air quality scenarios. A source-to-source compiler outputs a CUDA compatible kernel, by parsing the FORTRAN code generated by the Kinetic Pre-Processor (KPP) general analysis tool. All Rosenbrock methods that are available in the KPP numerical library are supported. Performance evaluation, using Fermi and Pascal CUDA-enabled GPU accelerators shows achieved speedups of 4.5× and 22.4× respectively of the kernel execution time. A node-to-node real-world production performance comparison shows a 1.75× speed-up over the non-accelerated application using the KPP 3-stage Rosenbrock solver. We provide a detailed description of the code optimizations used to improve the performance including memory optimizations, control code simplification, and reduction of idle time. The accuracy and correctness of the accelerated implementation are evaluated by comparing to the CPU-only version of the application. The relative difference is found to be less than 0.00005 % when comparing the output of the accelerated kernel the CPU-only code, within the target level of relative accuracy (relative error tolerance) of 0.1 %. The approach followed, including the computational workload division and the developed GPU solver code can potentially be used as the basis for hardware acceleration of numerous geoscientific models that rely on KPP for atmospheric chemical kinetics applications.


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