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Josepanton Morguí

Josepanton Morguí
ICTA_UAB (Environmental Science and Technology Institute - Universitat Autonoma de Barcelona) · LAO: Land Atmosphere & Ocean

About

67
Publications
7,612
Reads
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1,439
Citations
Additional affiliations
November 2008 - present
IC3 Catalan Climate Sciences Institute
Position
  • Head of the Laboratory of Atmosphere and Oceans
November 2003 - August 2010
Barcelona Science Park
Position
  • Researcher
May 1990 - present
University of Barcelona
Position
  • Professor (Associate)

Publications

Publications (67)
Article
Full-text available
Soil CO2 emissions are one of the largest contributions to the global carbon cycle, and a full understanding of processes generating them and how climate change may modify them is needed and still uncertain. Thus, a dense spatial and temporal network of CO2 flux measurements from soil could help reduce uncertainty in the global carbon budgets. In t...
Article
Full-text available
The objective of this study is to derive methane (CH4) emissions from three landfills, which are found to be the most significant CH4 sources in the metropolitan area of Madrid in Spain. We derive CH4 emissions from the CH4 enhancements observed by spaceborne and ground-based instruments. We apply satellite-based measurements from the TROPOspheric...
Preprint
Full-text available
Soil CO2 emissions are one of the largest contributions to the global carbon cycle, and a full understanding of processes generating them and how climate change may modify them is needed and still uncertain. Thus, a dense spatial and temporal network of CO2 flux measurements from soil could help reduce uncertainty in the global carbon budgets. In t...
Preprint
Full-text available
The objective is to derive methane (CH4) emissions of the metropolitan city Madrid Spain from the CH4 enhancements seen by the space-borne and the ground-based instruments. This study applies satellite-based measurements from the TROPOspheric Monitoring Instrument (TROPOMI) and the Infrared Atmospheric Sounding Interferometer (IASI) together with m...
Article
Full-text available
Chemistry transport models (CTMs) play an important role in understanding fluxes and atmospheric distribution of carbon dioxide (CO2). They have been widely used for modeling CO2 transport through forward simulations and inferring fluxes through inversion systems. With the increasing availability of high-resolution observations, it has been become...
Article
Full-text available
During the summer of 2018, a widespread drought developed over Northern and Central Europe. The increase in temperature and the reduction of soil moisture have influenced carbon dioxide (CO2) exchange between the atmosphere and terrestrial ecosystems in various ways, such as a reduction of photosynthesis, changes in ecosystem respiration, or allowi...
Article
Full-text available
The use of the noble gas radon (222Rn) as a tracer for different research studies, for example observation-based estimation of greenhouse gas (GHG) fluxes, has led to the need of high-quality 222Rn activity concentration observations with high spatial and temporal resolution. So far a robust metrology chain for these measurements is not yet availab...
Preprint
Full-text available
Abstract. The use of the noble gas radon (<sup>222</sup>Rn) as tracer for different research studies, for example observation-based estimation of greenhouse gas (GHG) fluxes, has led to the need of high-quality <sup>222</sup>Rn activity concentration observations with high spatial and temporal resolution. So far a robust metrology chain for these m...
Article
Full-text available
Climate change mitigation efforts require information on the current greenhouse gas atmospheric concentrations and their sources and sinks. Carbon dioxide (CO2) is the most abundant anthropogenic greenhouse gas. Its variability in the atmosphere is modulated by the synergy between weather and CO2 surface fluxes, often referred to as CO2 weather. It...
Article
Full-text available
Climate change mitigation efforts require information on the current greenhouse gas atmospheric concentrations and their sources and sinks. Carbon dioxide (CO2) is the most abundant anthropogenic greenhouse gas. Its variability in the atmosphere is modulated by the synergy between weather and CO2 surface fluxes, often referred to as CO2 weather. It...
Article
Full-text available
In order to improve the understanding of the carbon cycle in the Pyrenean region, two atmospheric monitoring mountain stations were set up within the Long-Term Ecological Research node of Aigüestortes i Estany de Sant Maurici at Central Pyrenees, Spain. The atmospheric concentration of carbon dioxide (CO2) was measured over 2008–2014 and 2010–2014...
Article
Full-text available
The ClimaDat station at Gredos (GIC3) has been continuously measuring atmospheric (dry air) mixing ratios of carbon dioxide (CO2) and methane (CH4), as well as meteorological parameters, since November 2012. In this study we investigate the atmospheric variability of CH4 mixing ratios between 2013 and 2015 at GIC3 with the help of co-located observ...
Article
Full-text available
Atmospheric concentrations of the two main greenhouse gases (GHGs), carbon dioxide (CO2) and methane (CH4), are continuously measured since November 2012 at the Spanish rural station of Gredos (GIC3), within the climate network ClimaDat, together with atmospheric radon (²²²Rn) tracer and meteorological parameters. The atmospheric variability of CH4...
Article
Introduction: Kawasaki disease (KD) is an acute self-limited systemic vasculitis relatively common in childhood. The etiology of KD is still unknown, although clinical, laboratory and epidemiological features suggest an infectious origin or trigger. Differences on incidence between countries have been related to specific genetic factors, ethnicity...
Article
Kawasaki disease (KD) is an acute self-limited systemic vasculitis relatively common in childhood. The etiology of KD is still unknown, although clinical, laboratory and epidemiological features suggest an infectious origin or trigger. Differences on incidence between countries have been related to specific genetic factors, ethnicity, country of bi...
Article
Full-text available
Deltas provide many worthy ecosystem services. Yet, delta basins are quite vulnerable, especially in the face of climate change, which can affect the outcome of both agriculture and biodiversity. Moreover, rice paddy cultivation is well known to contribute with strong emissions of greenhouse gases (GHGs), such as methane (CH4). Thus, knowing the at...
Article
Full-text available
Can environmental factors, such as air-transported preformed toxins, be of key relevance to the health outcomes of poorly understood human ailments (e.g., rheumatic diseases such as vasculitides, some inflammatory diseases, or even severe childhood acquired heart diseases)? Can the physical, chemical, or biological features of air masses be linked...
Article
Full-text available
Harmonized atmospheric 222Rn observations are required by the scientific community: these data have been lacking in southern Europe. We report on three recently-established ground-based atmospheric 222Rn monitoring stations in Spain. We characterize the variability of atmospheric 222Rn concentrations at each of these stations in relation to source...
Presentation
La maladie de Kawasaki (MK) est la principale cause des pathologies cardiaques qui affectent les jeunes enfants des pays développés. Depuis plus de quatre décennies, le nombre de cas ne cesse de croître un peu partout dans le monde et, malgré des recherches intensives, l’étiologie de la MK reste encore un mystère. De récents résultats, obtenus par...
Conference Paper
La maladie de Kawasaki (MK), décrite pour la première fois en 1961 par Tomisaku Kawasaki (Kawasaki, 1967), est la principale cause des pathologies cardiaques acquises chez les enfants des pays développés. Elle affecte majoritairement le nourrisson et le jeune enfant et sa gravité est liée aux complications cardio-vasculaires et aux graves anomalies...
Article
Full-text available
Airborne measurements within the urban mixing layer (360 m) over Greater London are used to quantify CO2 emissions at the meso-scale. Daytime CO2 fluxes, calculated by the Integrative Mass Boundary Layer (IMBL) method, ranged from 46 to 104 mu mol CO2 m(-2) s(-1) for four days in October 2011. The day-to-day variability of IMBL fluxes is at the sam...
Article
Full-text available
Most lakes and reservoirs have surface CO2 concentrations that are supersaturated relative to the atmosphere1. The resulting CO2 emissions from lakes represent a substantial contribution to the continental carbon balance2, 3, 4. Thus, the drivers of CO2 supersaturation in lakes need to be understood to constrain the sensitivity of the land carbon c...
Article
Full-text available
Due to the increase, in last years, of carbon dioxide (CO2) level in the atmosphere we start monitoring with the expandable seafloor observatory OBSEA a variety of parameters related with ocean acidification. Our research team has installed an underwater pH sensor in the OBSEA observatory in order to compare the sea pH data with the CO2 data collec...
Conference Paper
Full-text available
Emissions of CH4 over the central Iberian Peninsula have been estimated experimentally for the first time using the Radon Tracer Method (RTM), which uses the atmospheric noble radioactive gas 222Rn as an auxiliary tracer. The nocturnal enhancement ratios of atmospheric concentrations of CH4 and 222Rn, continuously measured at the station of Gredos...
Article
Full-text available
Evidence indicates that the densely cultivated region of northeastern China acts as a source for the wind-borne agent of Kawasaki disease (KD). KD is an acute, coronary artery vasculitis of young children, and still a medical mystery after more than 40 y. We used residence times from simulations with the flexible particle dispersion model to pinpoi...
Article
Full-text available
Data obtained from eleven flight surveys on six days during October 2011 were used to characterize the urban CO2 dome in Greater London (GL) and to calculate CO2 fluxes at the city scale. Flights crossed GL along two transects (SW-NE and SSE-NNW) at an altitude of 360 m. Increments as high as 23 ppmv were measured. The maximum CO2 mixing ratios wer...
Article
ClimaDat (www.climadat.es) is a pioneer project of the Institut Català de Ciències del Clima (IC3) in collaboration with and funded by "la Caixa" Foundation. This project aims at studying the interactions between climate and ecosystems at different spatial and temporal scales. The ClimaDat project consists of a network of eight long-term observator...
Article
Full-text available
The Gredos and Iruelas station (GIC3) is part of the ClimaDat IC3 network (http://climadat.es/). This station is located in the Gredos Natural Park at a latitude of 40.22° N and a longitude of -5.14° E in the Spanish central plateau. The ClimaDat network is made by 8 stations distributed around Spain and it has been developed with the aim of studyi...
Article
Full-text available
Traffic, industry and energy production and consumption within urban boundaries emit great amounts of CO2 into the atmosphere, creating an urban increment of CO2 mixing ratios compared to the surrounding rural atmosphere. Monitoring CO2 within these 'urban domes' has been proposed as a means to evaluate the effectiveness of policies aiming to mitig...
Article
With the aim of evaluate the role of a different water management on greenhouse gases (GHGs) at each side of the Ebro River Delta, five points were chosen to be sampled for GHGs for studying their spatial variability along diurnal cycles. The daily schedule for sampling was starting one day at the evening/sunset, followed by the next day dawn sampl...
Article
The study presented assesses the variability of extreme hydrological events at a global scale over the last 50 years, both in space and time in view of assisting predictability. Hydrological extremes are observed through the Palmer Drought Severity Index (PDSI), with a monthly temporal resolution. In order to perform the analysis, the concept of co...
Article
This paper documents a global Bayesian variational inversion of CO2 surface fluxes during the period 1988–2008. Weekly fluxes are estimated on a 3.75∞ ◊ 2.5∞ (longitude-latitude) grid throughout the 21 years. The assimilated observations include 128 station records from three large data sets of surface CO2 mixing ratio measurements. A Monte Carlo a...
Article
Full-text available
An intensive aircraft campaign measuring atmospheric CO2 mixing ratios was carried out in the central part of the Ebre watershed on late June 2007 to characterize the CO2 dynamics in the Ebre basin and to calculate the regional cumulative carbon surface flux. CO2 concentrations were obtained from vertical profiles over La Muela (LMU; 41.60°N, 1.1°W...
Article
Full-text available
An intensive aircraft campaign measuring atmospheric CO2 mixing ratios was carried out in the central part of the Ebre watershed on late June 2007 to characterize the CO2 dynamics in the Ebre basin and to calculate the regional cumulative carbon surface flux. CO2 concentrations were obtained from vertical profiles over LaMuela (LMU; 41.60◦N, 1.1◦W)...
Article
Full-text available
Vertical distribution of atmospheric CO2 mixing ratios, as well as CO2 vertical variance and gradient are related to the vertical stability at the time of measurement, to the transport of coherent upstream plumes studied through changes in the upstream surface influence or to the historic mixing processes and dispersive behavior. Three vertical pro...
Article
Since April 2009, air samples are being taken bi-weekly at 10 GMT in the plain of the Estany Llong at 2100 masl. Estany Llong air sampling site (ELL, 42°34'29''N 0°57'17''E) is a remote site situated in the SW principal valley of the Parc Nacional d'Aigüestortes i Estany de Sant Maurici. New Flask-sampling equipment for Remote Mountain Sites was de...
Article
We present an estimate of net ecosystem exchange (NEE) of CO2 in Europe for the years 2001–2007. It is derived with a data assimilation that uses a large set of atmospheric CO2 mole fraction observations (∼70 000) to guide relatively simple descriptions of terrestrial and oceanic net exchange, while fossil fuel and fire emissions are prescribed. We...
Article
Full-text available
A weekly climatology for 2006 composed of 96-h-backward Lagrangian Particle Disper-sion simulations is presented for nine aircraft sites measuring vertical profiles of atmo-spheric CO 2 mixing ratios along the 42 • N parallel in NE Spain to assess the surface influence at a regional scale (10 2 –10 3 km) at different altitudes in the vertical profi...
Article
A model framework which couples the Lagrangian Particle Dispersion Model FLEXPART (LPDM) with the new global surface flux inversion CarbonTracker from NOAA-ESRL (2007B release) is used to quantify the advected CO2 concentration from outbound surface fluxes to measured vertical profiles carried out during different seasons in 2006 at La Muela site i...
Article
Continuous in-situ atmospheric CO2 measurements at La Muela Tall Tower (LMU 41°36'N, 1°6'W, in the middle of the Ebre watershed) are carried out since May 2006 at three different altitudes (79, 57 and 41 m above ground level; ground level 570 m above sea level). Local and advected CO2 influence the diurnal CO2 atmospheric signal in LMU. A method fo...
Article
Full-text available
The new “Crown” aircraft sampling (CAS) approach integrates CO2 data obtained through horizontal transects and vertical profiles, sampling a specific volume of air at different atmospheric sections: 600 m, 1200 m, and 2500 m above the sea level (masl). This approach provides new tools to model fluxes in relation with meteorological conditions. It h...
Article
The new "Crown" aircraft sampling approach integrates the CO2 data obtained through horizontal transects and vertical profiles, sampling a specific air volume at three different atmospheric levels: 600 m (low), 1200 m (medium) and 2500 m (high). This method has been applied in a flat region from the NE in Spain, in a 60-km-sided triangle defined by...
Article
We aimed to analyse the temporal scales of the variability of benthic ammonium flux using data from an estuarine bay (Alfacs Bay, N. W. Mediterranean). Several nitrogen (N) pools in the sediment, their reactivities and their associated fluxes were estimated. Decomposition of labile buried N (4.5 mol N m-2) was found to cause an ammonium flux of 0.1...
Article
Full-text available
The seasonal variability of sediment–water ammonium flux andoxygen uptake was studied in an estuarine bay (Alfacs Bay, Ebro Delta, NWMediterranean) influenced by temporal freshwater discharges. Three stationswith different organic loading were sampled. The relationships of benthicfluxes to bottom water (temperature, dissolved oxygen, ammonium, nitr...
Article
The adsorption of phosphorus onto sediment particles has a major role in coastal areas, where continental inputs may increase levels of phosphate in the water mass. This paper reports a study of the adsorption capacity of phosphorus in two coastal areas located in the Balearic Islands: one in Majorca (The Albufera of Alcudia), and the other in Mino...
Article
We examined the relationship between potential respiration rates, as measured by electron transport system (ETS) activity, standardized at a defined temperature (ETS20), and nutrients and sestonic particles in a set of 101 Spanish reservoirs spanning a wide range of limnological characteristics. ETS activity ranged from 0.009 to 31.31 mumol e-l-1 h...
Article
Full-text available
Pore water ammonium concentration profiles in a temporal series of undisturbed sediments from the inner edge of the estuarine front in Alfacs Bay (Ebro Delta, Spain, NW Mediterranean) were measured. Results show accumulation of ammonium in pore waters in the fall. Changes in pore water ammonium concentrations from September to October fit the const...
Article
The concentrations of nutrients in sediment pore water and the fluxes of nutrients at the water-sediment interface were measured in a channel that joins continental and marine areas in the Albufera of Majorca in order to evaluate the role of sediments in the nutrient dynamics in this system. Upstream, surficial pore water presented lower values of...
Article
Total phosphorus in sediment (Psed) and its fractional composition (reactive phosphate extracted with NaOH, NaOH-RP, reactive phosphate extracted with HCl, HCl-RP, and residual phosphate, residual-P) have been determined in superficial sediments of 43 Spanish reservoirs located in different limnological regions and with different trophic states. Da...
Article
Full-text available
Benthic fauna size distribution, water and sediment composition, and physiographic features of catchments were used to classify ten reservoirs in the Ebro basin, Spain. Three reservoirs (Alloz, Urrunaga and Barasona) diverged from the rest. Environmental factors (water and sediment characteristics) that accounted for the separation of these three r...
Article
Full-text available
In this paper, an overview of the major patterns of variation in the limnology of Spanish reservoirs is provided, based on two regional studies carried out in 1972-76 and 1987-88. Geology and climate largely determined the ionic composition of Spanish reservoirs, whereas land uses in the cathment area seem to control nutrient concentrations. Nitrog...
Article
Seasonal variation of phosphate concentration and saturation index for calcite in water of a small stratified coastal lagoon have been studied. In surface waters, where salinity was low and pH high, the saturation index increased to values near 20, whereas in bottom water, with high salinity and low pH, they were usually lower. The ionic product fo...
Chapter
Sediment-water ammonium fluxes, oxygen uptake and sediment characteristics were studied in an estuarine bay influenced by temporal freshwater discharges. Sediment at seven stations representing a gradient imposed by freshwater inputs was sampled for sediment-water ammonium and oxygen fluxes, chlorophyll a derivative pigments, organic content, poros...
Article
The phosphorus compounds in the sediment of Sau reservoir have been analysed and related to the annual phosphorus budgets from 1965 to 1969. With the increase of eutrophy, the phosphorus inputs leave the water in two ways: to the sediment and to the water outflow. The second way becomes more important throughout the eutrophication process. Of the t...