Exhibition on Industrial Symbiosis and Circular Economy at ICTA-UAB

From 21 April to 5 May, the entrance hall of the Institute of Environmental Science and Technology (ICTA-UAB) will be displaying the exhibition "Simbiosi Industrial: revaloritzem els recursos sobrants" (Industrial Symbiosis: revaluing spare resources).

An ERC Advanced Grant for EVOCLIM. Candidates invited for 3 senior and 4 junior research positions

Prof. Jeroen van den Bergh from ICTA-UAB was just awarded a prestigious ERC Advanced Grant for the project “Behavioral-evolutionary analysis of climate policy: Bounded rationality, markets and social interactions” (EVOCLIM).

Unrestricted Improvements in Fishing Technology Threaten the Future of Seafood

A study conducted by ICTA-UAB researcher Eric Galbraith shows that future improvement of fishing technology poses a threat for the global fishery that could be greater than climate change.

¿Son los Pirineos una barrera real para el transporte atmosférico de polen?

Los resultados del estudio llevado a cabo por Jordina Belmonte y Concepción de Linares, investigadoras expertas en botánica de la UAB, constatan que el polen de abedul, una de las especies principales de plantas que causan alergia en Europa Central y del Norte.

Ice age thermostat prevented extreme climate cooling

During the ice ages, an unidentified regulatory mechanism prevented atmospheric CO2 concentrations from falling below a level that could have led to runaway cooling, reports a study conducted by researchers of the ICTA-UAB and published online in Nature Geoscience this week.

The New Theory of Economic “Agrowth” Contributes to the Viability of Climate Policies

 ICTA-UAB researcher Jeroen van den Bergh publishes in Nature Climate Change a study in which he proposes a new economic theory compatible with the fight against climate change.

Map Commemorating Women’s Resistance to Extractivism and Defense of Life and Territory in Latin America

A map created by researchers at the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), the Latin-American Network of Women Defending Social and Environmental Rights and the Colombian NGO CENSAT-Agua Viva Friends of the Earth Colombia makes visible the struggles of women in Latin America against mining and in defense of life.

High levels of pollen expected this spring

Researchers at ICTA-UAB recently presented the predictions of pollen and spore levels for this spring.

European Project to Analyse the Effects of Waste Generated by Tourism on Mediterranean Islands

An European study involving the Institute of Environmental Science and Technology of the Universitat Autònoma e Barcelona will address and propose solutions to the effects of the increase of waste generated by tourism on Mediterranean islands during the summer season.

El ICTA-UAB volverá Locos por la Naturaleza a 27 estudiantes de bachillerato

Un total de 27 estudiantes de bachillerato participan en la tercera edición del programa Locos por la Naturaleza que ofrece el Institut de Ciència i Tecnologia Ambientals de la Universitat Autònoma de Barcelona (ICTA-UAB) con la voluntad de promover el talento científico entre los jóvenes potenciando el conocimiento del medio natural y poniéndolos en contacto con los principales investigadores en la materia.

More Urban Green Needed in Barcelona to Have Positive Effects on Environmental Quality and Wellness

A PhD dissertation by Francesc Baró, from ICTA-UAB, quantifies and maps the benefits of urban and periurban green in Barcelona such as the improvement of air quality, climate change mitigation and opportunities for outdoor recreation.

New ICTA-UAB 'Welcome Guide'

The new ICTA-UAB 'Welcome Guide' it is at your disposal now. With this document, we aim to help you discover the basics of the PhD programme, ICTA-UAB’s structure, etc.

Social Relations, Success in Hunting and Good Health, Sources of Happiness for Indigenous People

Rural and indigenous people from the Global South push absolute income into the background as source of wellbeing.

Increase in motorcycles converts Barcelona into the European city with the highest number of motorbikes per inhabitant

A study by researchers of the ICTA-UAB and the UAB Department of Geography assesses the rise of motorcycles compared with the drop in cars in Barcelona in the past ten years.

More than One-Third of the Population Would Stop Economic Growth to Achieve Sustainability

A study by researchers of the Institut of Environmental Science and Technology (ICTA-UAB) assesses Spanish public opinion on economic growth, the environment and prosperity.

ICTA-UAB and ISGlobal Researchers Denounce Lack of Studies on the Harmful Health Effects of Oil Spills

A project led by ICTA-UAB, ISGlobal and the UAB Faculty of Veterinary Medicine in the Peruvian Amazon analyses the health effects of oil spills among people living close to oil extraction areas in developing countries.

Do Greener Cities Become More Unjust?

A new research project led by ICTA-UAB researcher Isabelle Anguelovski and funded by the European Union will assess the “green gentrification” process by which the creation of green urban amenities tends to attract the higher social classes and excludes the most vulnerable groups.

The ICTA-UAB Will Assess, in Collaboration with EU Staff, the Effectiveness of EU Sustainability Policies

The EU Project MAGIC (H2020) coordinated by the Institut de Ciència i Tecnologia Ambientals de la Universitat Autònoma de Barcelona (ICTA-UAB) has the goal to study and develop new strategies for a better use of science for governance.

ICTA-UAB receives María de Maeztu Excellence Award

The Institute of Environmental Science and Technology has received the award as a "María de Maeztu" Unit of Excellence 2015 from the Spanish Ministry of Economy and Competitiveness (MINECO).
Seminaris
Seminar: "Is high Si:N uptake ratio in the Southern Ocean necessary to explain global silicate distribution?", by Raffaele Bernardello

Date: 2017-03-22

Title: "Is high Si:N uptake ratio in the Southern Ocean necessary to explain global silicate distribution?"

Raffaele Bernardello, Barcelona Supercomputing Center

Date: Wednesday, March 22, 2017
Time: 11:30h
Venue: Room Z/033

 

 

We investigate controls on the global distribution of silicate with a coupled physical biogeochemical model using a set of experiments designed to test the sensitivity of an idealized non-limiting nutrient (Xnu). In a fixed steady-state circulation, dissolution lengthscale for Xnu and its uptake ratio by phytoplankton with respect to phosphate were varied across a wide range and over different regions. Steady state solutions for Xnu were then compared with observed climatological silicate. Both deep dissolution and high uptake ratio were able to cause the sharp meridional gradient observed for silicate at the surface of the Southern Ocean. However, only the former was able to determine the meridional gradient in concentration between the deep North Pacific and the deep Southern Ocean. Experiments with regional variations in the two parameters revealed an important role for the deep dissolution in the North Pacific, pointing to locally recycled silicate being determinant in the build-up of deep silicate. Although it is not possible to tell which of the two studied processes is the main driver in the Southern Ocean, only a deep dissolution lengthscale was able to reproduce both main characteristics of the global silicate distribution. We speculate that the high uptake ratio of silicate with respect to other macro-nutrients observed in the Southern Ocean would then be only a consequence (rather than a driver) of the high surface silicate concentration.

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