CREAF runs an annual programme of seminars that showcase the global research work in the field of ecological science both within and beyond our centre. Each seminar normally lasts 30-40 minutes with plenty of time afterwards for questions and discussion. Seminars are usually on Wednesday at 3 pm.
Summary
From the hydrological catchments to the atmospheric basins, Part I: A conceptual rupture?" tries to elaborate different approaches to understand how the research from the "land surface / atmosphere interactions" concept is integrated and scaled towards the results obtained by Earth Observation Systems (EOS). This introduces a discussion about why Earth observation from space seeks the highest resolution, no matter it may or it may not match the scale of "case studies" in the landscape structure. Research in the LAO-Lab provides examples to contribute to the discussion about the concepts underlying the research with EOS and about how to integrate it in distinct hydrological or atmosferic dynamics (i.e., questions about euclidean / lagrangian visions, about transect-based measures for geo-locating point-sources / point-based measures for locating diffuse-source areas, about seasonal and daily variability studied in extensive ecosystems and agro-systems / temporal variability and spatial complexity studied in cities and mountain sites, among other issues).
JosepAnton Morguí Castelló is a senior scientist at the Institute of Environmental Sciences and Technologies of the Autonomous University of Barcelona (ICTA-UAB) and associate professor at the Department of BEECA (Evolutionary Biology, Ecology and Environmental Sciences) of the University of Barcelona. Since 1983 his work topics have been related to flows through interfaces in aquatic systems and between ecosystems, with reference to the biogeochemical cycle of carbon and nutrients, such as phosphate and nitrogen compounds, together with a strong interest in the physical and chemical structure of ecosystems subject to high variability in the redox potential and the pH. JA Morguí continues this research by extending it to the Land, Atmosphere and Ocean interactions (sources, transport and biogeochemical behaviour of oxidized vs. reduced gases -O, C and N and their reactivity processes according to the acidity / basicity and to the redox potential of the environment). Since 2003, his work focuses on the atmospheric part of the carbon cycle, inrelation to climate dynamics, through studies on airborne platforms (VOLARE, ICARO, ICARO-2), high towers -Background Tall Towers- (in European projects CARBOEUROPE-IP, GEOMON, IMECC) or both (intereg: FLUXPYR), on a regional scale or on river basins. Currently (2018-2019), the GHG’s measurements in cities are carried out with mobile instrumentation (mounted in cars) in the city of Barcelona (JSUN-CH4 project, a Joint Research with five European cities, in addition to Toronto in Canada), for the determination of leaks and emissions of methane in the natural gas distribution network, in the sewerage network and in water and solid waste treatment plants. Cartography of methane concentrations was already carried out in 2012 over the rice fields of the Ebre River Delta. Seven years later a reprise of the survey (DeltaSpider, 2019) includes a larger area to determine spatial and temporal long-term changes in both the environment and management.
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