A5019181050- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Ionosphere and magnetosphere dynamics
- Advanced MIMO Systems Optimization
- Spectroscopy and Laser Applications
- Wireless Networks and Protocols
- Wireless Communication Networks Research
- Smart Grid Energy Management
- Energy Efficient Wireless Sensor Networks
- Metaheuristic Optimization Algorithms Research
- Cooperative Communication and Network Coding
- Indoor and Outdoor Localization Technologies
- Advanced Wireless Network Optimization
- Cognitive Radio Networks and Spectrum Sensing
- Underwater Vehicles and Communication Systems
- Neural Networks and Applications
- Neural Networks and Reservoir Computing
- Vehicle Routing Optimization Methods
- Geophysics and Gravity Measurements
- Wireless Communication Security Techniques
- Calibration and Measurement Techniques
- Model Reduction and Neural Networks
- Optimization and Search Problems
- Artificial Intelligence in Healthcare and Education
Euskadiko Parke Teknologikoa
2011-2024
Association of Electronic and Information Technologies
2021-2023
Tecnalia
2011-2023
GAIKER Technology Centre
2009-2012
Gamesa (Spain)
2011
VTT Technical Research Centre of Finland
2010
Robotiker
2009
Instituto de Astrofísica de Andalucía
2003-2006
Consejo Superior de Investigaciones Científicas
2003-2006
Retrieval of abundances atmospheric species from limb infrared emission spectra requires accurate knowledge the pointing instrument in terms elevation, as well temperature and pressure profiles. An optimal estimation‐based method is presented to infer these quantities measured spectra. The successful efficient joint retrieval largely correlated depends strongly on proper selection space, spectral microwindows, choice reasonable constraints which force solution be stable. proposed strategy...
Pronounced upper stratospheric and mesospheric NO x enhancements were measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) in Southern Hemisphere (SH) polar vortex from May to August 2003, reaching average abundances of 60 ppbv at 50–60 km July. Peak mixing ratios around 200 night, representing highest values ever recorded SH. The observed are attributed production electron precipitation mesosphere lower thermosphere subsequent descent with meridional...
This paper presents a novel bioinspired algorithm to tackle complex optimization problems: the coral reefs (CRO) algorithm. The CRO artificially simulates reef, where different corals (namely, solutions problem considered) grow and reproduce in colonies, fighting by choking out other for space reef. fight space, along with specific characteristics of corals' reproduction, produces robust metaheuristic shown be powerful solving hard problems. In this research is tested several continuous...
The large solar storms in October–November 2003 produced enormous proton events (SPEs) where high energetic particles reached the Earth and penetrated into middle atmosphere polar regions. At this time, Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) was observing 6–68 km altitude range. MIPAS observations of NO x (NO + 2 ) O 3 period from 25 October to 14 November are first global measurements species, covering both summer (daylight) winter (dark) regions during an SPE....
The large solar storm in October–November 2003 produced enormous amounts of high‐energy protons which reached the Earth and penetrated into middle atmosphere polar regions. At this time, Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on board Environmental Satellite (ENVISAT) was observing 6–68 km altitude range. MIPAS observed significant enhancements NO y components HNO 3 , N 2 O 5 ClONO northern stratosphere after intense proton events. Two distinct were observed. An...
Vertical profiles of stratospheric HNO 3 were retrieved from limb emission spectra recorded by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) aboard Envisat research satellite during Antarctic winter 2003. A high second maximum was found around 34 km altitude with abundances up to 14 ppbv July. Similar have not been reported in literature previous winters, but subsequent Arctic 2003/2004, after severe perturbations due solar proton events. The stratosphere started...
Time series of stratospheric ClO and HOCl have been measured with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on board Environmental Satellite (ENVISAT) during solar storm episode in October/November 2003. A remarkable enhancement mean values (averaged over latitudes poleward from 70°N) was found, reaching more than 0.2 ppbv even 0.4 when only nighttime measurements are considered. found to increase by up 0.3 at altitudes above 32 km. This gives indirect proof...
Abstract. We report on the dependence of ozone volume mixing ratio profiles, retrieved from limb emission infrared spectra Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), different retrieval setups such as treatment background continuum, cloud filtering, spectral regions used analysis and a series further more technical parameter choices. The purpose this investigation is to better understand error sources retrieval, optimize current setup document changes in data...
The internationalization of a company is widely understood as the corporative strategy for growing through external markets. It usually embodies hard process, which affects diverse activities value chain and impacts on organizational structure company. There not general model successful international company, so success an procedure must be estimated based different variables addressing status, market characteristics at hand. This paper presents novel hybrid soft-computing approach...
In the last years, Artificial Intelligence (AI) has achieved a notable momentum that may deliver best of expectations over many application sectors across field. For this to occur, entire community stands in front barrier explainability, an inherent problem AI techniques brought by sub-symbolism (e.g. ensembles or Deep Neural Networks) were not present hype AI. Paradigms underlying fall within so-called eXplainable (XAI) field, which is acknowledged as crucial feature for practical...
Abstract Most scenarios emerging from the Industry 4.0 paradigm rely on concept of cyber‐physical production systems (CPPS), which allow them to synergistically connect physical digital setups so as integrate over all stages product development. Unfortunately, endowing CPPS with AI‐based functionalities poses its own challenges: although advances in performance AI models keep blossoming community, their penetration real‐world industrial solutions has not far developed at same pace....
On 1 March 2002 the Envisat research satellite has been launched successfully into its sun-synchronous orbit. One of instruments for atmospheric composition sounding is Michelson Interferometer Passive Atmospheric Sounding, a limb-scanning mid-infrared Fourier transform spectrometer. Different scientific objectives data users require different approaches to analysis, which are discussed. A strategy on how validate involved algorithms and relevant strategies presented.
The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard the Envisat satellite provides temperature and various gas profiles from limb‐viewing midinfrared emission measurements. stratospheric temperatures retrieved at Institut für Meteorologie und Klimaforschung (IMK) September/October 2002 October/November 2003 are compared with a number of reference data sets, including global radiosonde (RS) observations, radio occultation (RO) measurements Global Positioning System...