Emilio García-Ladona

Emilio García-Ladona
Institut de Ciències del Mar · Department of Physical and Technological Oceanography

Researcher

About

101
Publications
20,879
Reads
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2,983
Citations
Citations since 2017
15 Research Items
1210 Citations
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2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
Introduction
Main research interests are: Western Mediterranean circulation; mesoscale variability; mixing processes, topographic interactions and shelf/slope exchanges; pattern recognition techniques; data analysis; operational oceanography, marine ecosystem modelling.... In summary I am curious, because otherwise doing research in Spain is like to be a preacher in the desert by three quarters of the salary of any researcher worldwide !!, but the Spanish government calls this "efficiency" and "productivity".
Additional affiliations
September 2006 - September 2011
Universidad de Las Palmas de Gran Canaria
Position
  • Prof. de Doctorado y Master en Ciencias del Mar
Description
  • Cursos: - Méthods in Physical Oceanography (it is difficult to make ocean research without having notions about the methods to analyze real data)
September 1995 - September 1999
Autonomous University of Barcelona
Position
  • Professor (Associate)
Description
  • Environmental Sciences: - General Physics - Meteorology and Climatology - Oceanography Biology: - General Physics Physics: - Physics of Fluids - Mathematical Methods I
May 1995 - present
Institut de Ciències del Mar
Position
  • Senior Researcher

Publications

Publications (101)
Conference Paper
Full-text available
Extreme and prolonged increases in the sea temperature, a marine heatwave (MHW), are detected by comparison with historical values at each location and time of year. Thus, the correct estimation of reference values is key in detecting marine heatwaves. In temporally separated epochs comparison, it is necessary to consider two contributions to the e...
Conference Paper
The definition of a sensor monitoring strategy is based on the location for water monitoring, sensor performances, data storage and transmission. For any new sensor, available instruments currently used in oceanographic studies are identified to perform comparisons. Suitable transmission technology is selected according to the test conditions: open...
Technical Report
Full-text available
This document reports the technical aspects relative to the format specifications for data exchange information among different institutions during the Project "Corrientes Oceánicas y Seguridad en el Medio MarinO" (COSMO, CTM2016-79774-R). The project MEDOSMOSIS (6MED20 4.1 SP 005) has funded the English translation of this manuscript.
Article
Full-text available
Sea surface currents probably are the most relevant essential ocean variable affecting diversesocietal challenges concerning the marine environmental (as, for example, safe and efficientnavigation, marine pollution and ecological connectivity). This work introduces a climatologicalAtlas (monthly resolution) of currents in the Mediterranean and Cana...
Article
Full-text available
Current observations of ocean currents are mainly based on altimetric measurements of Sea Surface Heights (SSH), however the characteristics of the present-day constellation of altimeters are only capable to retrieve surface currents at scales larger than 50–70 km. By contrast, infrared and visible radiometers reach spatial resolutions thirty times...
Chapter
Full-text available
A marine hazard is a potentially damaging event, phenomenon or activity in the marine environment that may cause loss of human life, social and economic disruption or environmental degradation. In the last 30 years, natural and human-induced hazards have caused over 1.6 million victims and the economic losses average 300 thousand million dollars pe...
Presentation
Full-text available
The knowledge about the variability of the surface ocean currents is essential to support medium and long-term decision-making in a different problem related to the ocean currents: the spills of hydrocarbons or chemical products that can be dumped by ships, oil rigs, or other industries. Traditionally, the prediction of the evolution of the pollut...
Data
The monthly climatological atlas includes surface and subsurface currents and variance matrix at each grid point to provide quantitative information on the variability of currents. The climatological fields are computed using two different current velocity products for the Mediterranean (from altimetry measurements and MEDSEA reanalysis) and one pr...
Article
Full-text available
This paper reviews different approaches to modelling the energy transition towards a zero carbon economy. It identifies a number of limitations in current approaches such as a lack of consideration of out-of-equilibrium situations (like an energy transition) and non-linear feedbacks. To tackle those issues, the new open source integrated assessment...
Article
Full-text available
This paper reviews different approaches to modelling the energy transition towards a zero carbon economy. It identifies a number of limitations in current approaches such as a lack of consideration of out-of-equilibrium situations (like an energy transition) and non-linear feedbacks. To tackle those issues, the new open source integrated assessment...
Article
Full-text available
Surface currents in the Alboran Sea are characterized by a very fast evolution that is not well captured by altimetric maps due to sampling limitations. On the contrary, satellite infrared measurements provide high resolution synoptic images of the ocean at high temporal rate, allowing to capture the evolution of the flow. The capability of Surface...
Article
Surface currents in the Alboran Sea are characterized by a very fast evolution that is not well captured by altimetric maps due to sampling limitations. On the contrary, satellite infrared measurements provide high resolution synoptic images of the ocean at high temporal rate, allowing to capture the evolution of the flow. The capability of Surface...
Technical Report
Full-text available
This report documents the conventions developed on the frame of COSMO project (CTM2016-79474-R) to standardize GeoJSON specifications to encode ocean drifting objects. It encompasses several classes to encode usual oceanographic drifters (CODE,SVP,...) but also trajectories made by dummies in search and rescue exercises or document rescue of human...
Article
Full-text available
Ocean currents play a key role in Earth's climate – they impact almost any process taking place in the ocean and are of major importance for navigation and human activities at sea. Nevertheless, their observation and forecasting are still difficult. First, no observing system is able to provide direct measurements of global ocean currents on synopt...
Article
Full-text available
Ocean currents play a key role in Earth’s climate, they are of major importance for navigation and human activities at sea, and impact almost all processes that take place in the ocean. Nevertheless, their observation and forecasting are still difficult. First, direct measurements of ocean currents are difficult to obtain synoptically at global sca...
Technical Report
EXECUTIVE SUMMARY The COMMON SENSE project has been designed and planned in order to meet the general and specific scientific and technical objectives mentioned in its Description of Work (page 77). As the overall strategy, the 11 work packages (WPs) of the work plan were grouped into 3 key phases: (1) RD basis for cost-effective sensor developmen...
Article
Full-text available
Phytoplankton blooms are events of production and accumulation of phytoplankton biomass that influence ecosystem dynamics and may also have effects on socio-economic activities. Among the biological factors that affect bloom dynamics, prey selection by zooplankton may play an important role. Here we consider the initial state of development of an a...
Article
Full-text available
Since the mid-1980s, physical oceanographers at the Institute of Marine Sciences have been involved in the use of Lagrangian drifters as a complementary technology for their oceanographic research. As Lagrangian observations became more feasible, these researchers continued developing their own drifters in what was to be the seed of current technol...
Chapter
The main circulation patterns in the western Mediterranean are revisited and updated. The schemes are based on the previous literature, adapted and reviewed. The update concerns in particular the circulation at intermediate depths, exemplified by the Levantine Intermediate Water circulation, and includes deep water cascading and recent observations...
Article
Full-text available
In this work we report short-term measurements of the thermohaline structure and velocity field inside a narrow submarine canyon by means of a yo-yo-like profiler. An Aqualog profiler was deployed inside the Besòs Canyon in the northwestern Mediterranean continental margin, providing a unique data set on the vertical evolution of water column chara...
Chapter
Full-text available
In this chapter, different kinds of oil spill beaching maps are proposed for the Mediterranean. These beaching maps can be useful as a complementary tool to vulnerability analysis and risk assessment in the Mediterranean. Firstly, it is defined an oil beaching map for a single point, which is the situation, for example, in the analysis of an oil pl...
Technical Report
Full-text available
EXECUTIVE SUMMARY In its overall strategy, COMMON SENSE work packages (11) can be grouped into 3 key phases: (1) RD basis for cost-effective sensor development, (2) Sensor development, sensor web platform and integration, and (3) Field testing. In the Phase 1, within WP1 and WP2, partners have provided a general understanding and integrated basis f...
Article
Full-text available
The circulation in the Algerian Basin is characterized by the presence of fresh-core eddies that propagate along the coast or at distances between 100 and 200 km from the coast. Enhancements in the processing of the Soil Moisture and Ocean Salinity (SMOS) data have allowed to produce, for the first time, satellite sea surface salinity (SSS) maps in...
Article
Full-text available
An exhaustive validation of some of the operational ocean forecast products available in the Gibraltar Strait and the Alboran Sea is here presented. The skill of two ocean model solutions (derived from the Eulerian ocean forecast systems, such as the regional CMEMS IBI and the high resolution PdE SAMPA) in reproducing the complex surface dynamics i...
Article
Full-text available
On 9 September 2014, an intensive drifter deployment was carried out in the Strait of Gibraltar. In the frame of the EU MED Program MEDESS-4MS, the MEDESS-GIB experiment consisted of the deployment of 35 satellite tracked drifters, mostly of CODE-type, equipped with temperature sensor sampling at a rate of 30 min. Drifters were distributed along an...
Article
Full-text available
On 9 September 2014, an intensive drifter deployment was carried out in the Strait of Gibraltar. In the frame of the EU MED Program MEDESS-4MS, the MEDESS-GIB experiment consisted of the deployment of 35 satellite tracked drifters, mostly of CODE-type, equipped with temperature sensor sampling at a rate of 30 min. Drifters were distributed along an...
Article
Full-text available
For the first time a statistical analysis of oil spill beaching is applied to the whole Mediterranean Sea. A series of probability maps of beaching in case of an oil spill incident are proposed as a complementary tool to vulnerability analysis and risk assessment in the whole basin. As a first approach a set of spill source points are selected alon...
Technical Report
EXECUTIVE SUMMARY The COMMON SENSE project has been designed and planned in order to meet the general and specific scientific and technical objectives mentioned in its Description of Work (page 77). In an overall strategy of the work plan, work packages (11) can be grouped into 3 key phases: (1) RD basis for cost-effective sensor development, (2)...
Data
A version of TEOS-10 (Thermodynamic Equation of Seawater - 2010) in JavaScript has been added to GitHub repository (https://github.com/TEOS-10) See TEOS-10 in action at http://www.physocean.icm.csic.es/Utilities/calculators/teos-ca.html
Technical Report
Full-text available
The Mediterranean occupies the 0.85% of the marine surface but supports 1/6 of the global marine trade and 1/3 of oil marine trade. The project MEDESS-4MS was designed to build a service devoted to prevent and strength the marine security to face oil pollution events in the Mediterranean. The main objective is the built of a multimodel operational...
Conference Paper
In 2003 was created AFORO (http://aforo.cmima.csic.es), an interactive system to deal with shape analysis of fish otoliths and a classification system based on the mathematical properties of the one-dimensional curves describing the otolith contours. The system is connected to a database of complete morphometric (measures and morphological indexes)...
Technical Report
EXECUTIVE SUMMARY The last decade has seen significant growth in the field of sensor networks, which are currently collecting large amounts of environmental data. This data needs to be collected, processed, stored and made available for analysis and interpretation in a manner which is meaningful and accessible to end users and stakeholders with a r...
Technical Report
EXECUTIVE SUMMARY AND STRUCTURE OF THE DELIVERABLE Deliverable 1.4 is aimed at identification of existing and operable observing systems and sensors which are relevant to COMMON SENSE objectives. Report aggregates information on existing observing initiatives, programmes, systems, platforms and sensors. The Report includes: • inventory of previous...
Article
Full-text available
This paper is the outcome of a workshop held in Rome in November 2011 on the occasion of the 25th anniversary of the POEM (Physical Oceanography of the Eastern Mediterranean) program. In the workshop discussions, a number of unresolved issues were identified for the physical and biogeochemical properties of the Mediterranean Sea as a whole, i.e., c...
Chapter
Large oil spills produce major ecological and economic impacts on shorelines depending on the following conditions: (i) persistence of the oil in the environment; (ii) weather and sea conditions; (iii) amount and rate of spillage; (iv) geographical, biological and economic characteristics of the area affected; (v) effectiveness of clean up. Oil spi...
Article
Full-text available
The importance of the Mediterranean Sea for the world ocean has long been recognized. First, the Mediterranean sea has a profound impact on the Atlantic ocean circulation and, consequently, on the global thermohaline conveyor belt. Maps of the Mediterranean salty water tongue exiting from the Gibraltar strait at intermediate depths and spreading th...
Article
Full-text available
Nonlinear phenomena are essential ingredients in many oceanic and atmospheric processes, and successful understanding of them benefits from multidisciplinary collaboration between oceanographers, meteorologists, physicists and mathematicians. The present Special Issue on ``Nonlinear Processes in Oceanic and Atmospheric Flows'' contains selected con...
Article
Automated Taxon Identification (ATI) systems that use a database to identify species or anatomical structures of species from different taxonomical groups have recently been developed. However, few of these works have been applied to marine organisms. In this paper we develop an ATI system for identifying Actynopterigian species from their otolith...
Article
Full-text available
Technology offers easy-to-use satellite data, allowing manipulation and enhancement of the images. There are basically two sorts of remote sensing data users. One kind is mainly interested in doing qualitative studies, so it is enough for them to be able to browse images from data repositories and download the imagery. A high-resolution picture tra...
Article
Full-text available
Linear and non-linear empirical models for salinity (S) are estimated from the Argo temperature (T) and salinity (delayed) data. This study focuses on the reconstruction of salinity in the upper 1200 m of the eastern North Atlantic Ocean, a region characterized by the presence of many different water masses. While previous studies have found it nec...
Article
Transport and mixing properties of surface currents can be detected from altimetric data by both Eulerian and Lagrangian diagnostics. In contrast with Eulerian diagnostics, Lagrangian tools like the local Lyapunov exponents have the advantage of exploiting both spatial and temporal variability of the velocity field and are in principle able to unve...
Article
Full-text available
Nowadays Earth observation satellites provide information about many relevant variables of the ocean-climate system, such as temperature, moisture, aerosols, etc. However, to retrieve the velocity field, which is the most relevant dynamical variable, is still a technological challenge, specially in the case of oceans. New processing techniques, eme...
Article
The surface salinity response to changes of various external forcings and model parameters is investigated in a regional 1/3° configuration of the NEMO-OPA model implemented over the eastern North-Atlantic subtropical Ocean. Fourteen realistic climatological simulations are run. By default, neither relaxation to climatological surface salinity nor...
Article
We summarize recent work on the location of Lagrangian structures in velocity fields obtained from realistic simulations and from satellite altimetry of the surface layers of the Mediterranean sea. Finite-size Lyapunov exponents are found to be useful quantities to characterize stretching and compressing structures, and their implications for mixin...
Conference Paper
In many oceanographic studies there is a need to reconstruct a signal from a set of sparse measurements. We propose an algorithm to iteratively approximate the intermediate values between irregularly sampled data, when a set of sparse values at coarser scales is known. This is possible when there is an approximation to a model for the multiresoluti...
Conference Paper
Full-text available
Within the tasks devoted to operational oceanography, a tool has been developed to access, visualize and distribute satellite data from an HPRT receiving station located in the Institut de Ciencies del Mar (CMIMA-CSIC). The tool generically called SAIDIN (SAtellite Image Database INterface) has been developed with the purpose to access and provide...
Article
In the recent years, the power of employing singularity analysis of scalar variables to perform pattern recognition in complex images has been evidenced. This approach is particularly useful when the image under study corresponds to a scalar variable submitted to a turbulent flow because, in that case, the arrangement of singularity manifolds corre...
Article
The ESEOO Project, launched after the Prestige crisis, has boosted operational oceanography capacities in Spain, creating new operational oceanographic services and increasing synergies between these new operational tools and already existing systems. In consequence, the present preparedness to face an oil-spill crisis is enhanced, significantly im...
Article
Full-text available
This paper addresses the interpolation of sparse irregular data when these sparse data belong to diff erent scales. We propose an algorithm to iteratively approximate the intermediate values between irregularly sampled data, when a set of sparse values at coarser scales is known. This is possible if there is a characterized model for the multiresol...
Article
Full-text available
[EN] A methodology for recovering salinity from expendable bathythermograph (XBT) data is presented. The procedure exploits climatological relationships between temperature, salinity and depth to build regional characteristic curves by fitting a polynomial function that minimises both the variance of residuals and unknowns. Hence, salinity is compu...
Article
Full-text available
This paper presents a contour-based approach for automatic image registration in satellite oceanography. Accurate image georegistration is an essential step to increase the eff ectiveness of all the image processing methods that aggregate information from diff erent sources, i.e. applying data fusion techniques. In our approach the images descripti...
Article
Full-text available
We demonstrate the potential of monitoring coherent wave fronts on the tropical ocean surface using an advanced detection algorithm applied to visible sunglintaffected imagery from geostationary satellites. Data from MeteoSat are processed with the advanced analysis technique to reveal transient wave activity near and to the west of the Mascarene R...
Conference Paper
Full-text available
Recent advances in the theory of turbulence, with the introduction of the Microcanonical Multifractal Formalism has favored the development of new techniques for the analysis of remotely sensed data, particularly of scalers as SST. In this work we show that these techniques allow to uncover a fascinating picture in which many features of global oce...
Article
Full-text available
1] Oceans and 2D turbulence present similar characteristics, as for instance the dominant role played by eddies in energy and matter transport. However, providing a complete justification of this analogy is difficult, as it requires knowledge of the ocean's dynamic state at different instants and over large scales. Recently, new techniques coming f...
Article
Full-text available
In this paper we investigate the validity of the multifractal formalism to study sea surface temperature (SST). It is shown that SST patterns observed in moderate resolution SST images have anomalous scaling properties characteristic of a multifractal structure. The most probable origin of the observed structures is the turbulent character of the o...
Article
Full-text available
A realistic 4-year dataset of the surface velocity field of the western Mediterranean Sea obtained with the Mediterranean Forecasting System and the GFDL-MOM model was used to obtain the finite-scale Lyapunov exponents (FSLE) and finite-size diffusion coefficients. Dispersive properties and Lagrangian parameters in four sub-basins are discussed, an...
Article
Full-text available
Velocity probability density functions (PDFs) are a key tool to study complex flows and are of great importance to model particle dispersion. The PDFs of geostrophic velocities derived from sea level anomalies maps for the Mediterranean Sea have been computed and analyzed, guided by recent results found in studies of two-dimensional and geostrophic...
Article
A feature of marine plankton communities is the occurrence of rapid population explosions. When the blooming species are directly or indirectly noxious for humans, these proliferations are denoted as harmful algal blooms (HAB). The importance of biological interactions for the appearance of HABs, in particular when the proliferating microalgae prod...
Article
A multispecies dynamic simulation model (ERSEM) was used to examine the influence of allelopathic and trophic interactions causing feeding avoidance by predators, on the formation of harmful algal blooms, under environmental scenarios typical of a Mediterranean harbour (Barcelona). The biological state variables of the model included four functiona...
Article
Full-text available
We present an automatic system for describing and identifying fish otolith shapes combining information technologies with modern advances in signal analysis. As a major novelty with respect to past studies the system includes wavelets (WT) and curvature space scale (CSS) analyses that have been shown to provide local morphologic information and cha...
Article
Full-text available
We present an automatic system for describing and identifying fish otolith shapes combining information technologies with modern advances in signal analysis. As a major novelty with respect to past studies the system includes wavelets (WT) and curvature space scale (CSS) analyses that have been shown to provide local morphologic information and cha...