PostDoc - Glaciología en regiones polares

Grupo de Simulación Numérica en Ciencias e Ingeniería. UPM

Madrid, España

Fecha límite: 2 de febrero de 2014

Descripción

POSIBLES LÍNEAS DE TRABAJO (a seleccionar en función del perfil del candidato):

• Tratamiento y análisis de datos de sensores termométricos, de presión e inclinometría, instalados en perforaciones en glaciares antárticos. Aplicación a la caracterización de la dinámica glaciar.

• Acoplamiento de un modelo termomecánico de un glaciar terminado en mar con modelos regionales de circulación oceánica y de clima.

• Procesamiento iterativo de modelos digitales 3D de glaciar construidos a partir de datos topográficos y de georradar.

PhD - Simulación evolutiva para estudio de glaciares

Universidad Politécnica de Madrid

Madrid, España

Descripción

Se buscan candidatos (Físicas, Matemáticas, Ingenierías, Ciencias Ambientales, Geología o titulaciones afines) interesados en solicitar una beca FPU para realizar el doctorado en alguna de las líneas de investigación del Grupo de Simulación Numérica en Ciencias e Ingeniería, según perfil del candidato.

El Grupo de Simulación Numérica en Ciencias e Ingeniería es un grupo de investigación de la Universidad Politécnica de Madrid que desde 1995 centra su actividad en la glaciología. Combinamos modelos matemáticos de termomecánica glaciar con trabajos de campo en la Antártida y el Ártico, para simular la respuesta de los glaciares a los cambios climáticos. También empleamos el georradar como técnica esencial para la toma de datos de campo.

Más información y solicitudes

PostDoc - Signal Processing

Chalmers University

Gothenburg, Sweden

 

Description

 

The Department of Signals and Systems is seeking a Postdoctoral research fellow in Signal Processing, with a strong background in Applied Mathematics.

The position is not tied to a specific project, so there is a great freedom in selecting research topics. However, a successful candidate should have research interests and a solid background related to one or more of the following application areas:

-Array Signal Processing.

-Sparse Signal Modeling.

-MIMO Radar.

-Microwave-Based Sensing.

-MIMO Communication Systems

The position is placed in the Signal Processing Group at the Department of Signals and Systems. The group performs research in the general area of Statistical Signal Processing and Image Analysis, with applications in Automotive Safety, Biomedical Engineering, Microwave-Based Measurement systems, MIMO Communications and Radar systems.

The Post-doctoral position is an appointment that offers an opportunity to qualify for further research positions within academia or industry. The majority of your working time is devoted to your own research as a member of the Signal Processing Group. Included in your work is also to take part in supervision of Ph.D. students and M.Sc. thesis students. Teaching of undergraduate students may also be included to a small extent. 


Requirements

 

To qualify for the position of postdoc, you must have a doctoral degree in Signal Processing or in a related field. In addition, a theoretical background in the following areas is desired:

-Statistical Signal Processing, including Detection, Estimation and Classification.

-Mathematical Optimization Techniques, especially Convex Optimization.

-Linear Algebra.

You are expected to be somewhat accustomed to teaching, and to demonstrate good potential within research and education in a relevant field; the PhD degree should generally not be older than three years. The position requires sound verbal and written communication skills in English.

 

More information and applications

 

PhD - Radar interferometry

University Joseph Fourier

Grenoble, France

Description

The launch of two satellites, planned in 2013, ALOS-2 from JAXA and Sentinel from ESA, will allow to obtain large series of SAR data in ScanSAR mode, covering roughly N-S tracks of 400km width. It is here a unique opportunity to study intracontinental ground deformation. Until now, the very large majority of interferometric (InSAR) studies for sismo-tectonic applications were applied to the fault scale. Our team acquired in the last years a unique expertise in France to map by InSAR spatio-temporal variations of the deformation related to the seismic cycle in variable tectonic contexts (subduction and large continental fault). This approach could now be integrated in the study of lithospheric deformation at a larger scale, here over the tibetan plateau. Integration of GPS and InSAR constraints in kinematic block models of Tibet implies to include the effect of lateral variations of elastic coupling along the main faults, the fault velocity, their 3-D geometry and possible internal deformation within blocks. Studying the visco-elastic response of the lithosphere subjected to stress brings constraints to the lithosphere rheology. The latter controls fault interactions up to large distances and the relationship between observed surface interseismic deformation, long-term velocities and strain localization at depth. Up to now, only GPS data are available to tackle the open questions in the present-day Tibet deformation at large-scale. However, although very accurate, they cannot map continuously the deformation field. The debate thus continues between opposite end-member models of Tibet deformation, either localized and controlled mainly by large and deep lithospheric faults or driven by distributed ductile flow in the lower crust. The aim of this PhD is thus to tackle this problem by mapping at various scales the deformation rate in Tibet. We propose to exploit all archived and acquired ScanSAR (Envisat, Sentinel et ALOS-2) across Tibet, starting from its eastern margin. The student will start by exploiting the Scan-SAR archive of the Envisat satellite, then he will integrate the flux of data coming from Sentinel and ALOS-2, launched in 2013. The student will also develop a mechanical model of intracontinental deformation at the scale of Tibet. The student may spend six months in China for scientific exchanges and field work.

Microwave ocean remote sensing

National Oceanography Centre

Southampton, UK

 

Description

 

The National Oceanography Centre, part of the Natural Environment Research Council, is a national research organisation, delivering integrated marine science and technology from the coast to the deep ocean and is one of the top five institutions of its kind in the world. With sites in Liverpool and Southampton, it is the UK's leading centre for sea level science, coastal and deep ocean research and technology development. Working closely with its partners and associates it provides capability to meet the needs across the UK marine science community. We seek an enthusiastic and motivated individual to join our Satellite Oceanography group to perform research on innovative microwave remote sensing sensors and missions with applications to oceanography. Specifically, you will join the existing research team at NOC working on Synthetic Aperture Radar altimetry and interferometric SAR techniques for wide-swath ocean surface current imaging (Wavemill).

 

PhD - Spatial and temporal variability of intense rain events

Laboratoire d’étude des Transferts en Hydrologie et Environnement

Grenoble, France

 

Description

 

Water and soil resources management and hydrometeorological hazard mitigation are critical issues in mountainous regions, especially those of the Mediterranean edge due to on-going climate change and increased anthropic pressure. Studies, coupling the methodological approaches of hydrometeorology, hydrology and soil sciences, are required to observe and understand the processes and establish hydrosedimentary balances over a range of nested spatial scales, from the hillslope up to medium-scale watersheds (100 – 1000 km²). The PhD thesis will focus on the relationships between the spatial and temporal variability of rainfall in mountainous regions, and the subsequent flash-floods and suspended solids transfers (SST) over nested watersheds in the Ardèche region, France. The objectives are to (1) characterize the fine scale variability of heavy rainfall (5 min, <1 km² typically) and (2) to observe and model the resulting non-linear hydro-sedimentary response. In addition to the operational rainfall observation system (weather radars and raingauge networks of Météo France and the Service de Prévision des Crues du Grand Delta), an X-band Doppler polarimetric radar, well suited to rainfall measurement in mountainous regions, will be available together with a dense network of raingauges and disdrometers. Emphasis will be placed in the thesis on the production of rainfall re-analyzes, temporally continuous with very high resolution for the most intense episodes. An error model will be specified to allow the generation of probabilistic quantitative precipitation estimates. Water flows and SST will be measured continuously at the outlet of the nested watersheds of Gazel (3.4 km2), Claduègne (43 km2) and Auzon (116 km2). In parallel, monitoring a network of limnimeters in the intermittent drainage basins upstream will allow to document the hydrologic response of sample of landscapes (lithology, soil type, vegetation cover, elevation, land use, etc..). Moreover innovative observation techniques of river flows (LSPIV, radar) will be implemented during floods and high resolution LIDAR data will be available in order to characterize the topography and the drainage network. An essential part of the thesis will be devoted to the implementation and development of the DHSVM model (Distributed Hydrology Soil Vegetation atmosphere Model) to understand, using the collected data, the functioning of the watersheds and assess the sensitivity of the spatial-temporal variability of rainfall on the dynamics of water flow and SST. We also plan to work on matching the rainfall spatial resolution and the watersheds spatial discretization in the DHSVM model to optimize the number of soil and erosion parameters and / or to propose new parameterization schemes of the runoff and erosion production at fine scales.

 

PhD - Radar Imaging

TU Delft

Delft, The Netherlands

Description

The proposed research addresses the design, evaluation and experimental validation of new ultra-wideband radar imaging techniques for the reliable detection and location of targets in front of tunnel-boring machines. The candidate will be responsible for the folowing activities:

• Performing research according to the project plan,

• Preparing and writing all project deliverables for which MS3 is responsible,

• Developing theory for short-range, forward-looking imaging with sparse arrays,

• Experimentally verifying theory with short-range UWB data,

• Developing and analysing the algorithm(s) for non-ambiguous detection of small/weak moving targets in clutter, with adequate waveform coding and processing,

• Developing and analysing practical algorithm(s) for angular resolution of multiple extended targets.

The performance of this technique will be evaluated in simulations and validated with signals measured with real radar research platforms. The expected results should cover a broad range of applications, such as situation awareness in defence and security applications, traffic control radars - both automotive and infrastructure-based (mounted on highways, crossroads, bridges), and remote sensing applications using SAR. The project has triggered interest in the Dutch industry, which will participate in the research and contribute to the study by making operational radars available for the data acquisition, thus complementing the available radars at TU Delft. The researcher will work in a very international team connected to the main academic and industrial actors in the field.

Detección mejorada en radares pasivos

Universidad de Alcalá

Alcalá de Henares, Spain

Descripción

Investigación sobre técnicas de detección mejoradas para radares pasivos. Diseño e implementación de técnicas de detección en radares pasivos. Diseño e implementación de algoritmos de seguimiento en radares pasivos. 

Requisitos

- Ingeniero de Telecomunicación

- Haber finalizado los estudios con posterioridad al curso 2010-2011

- Experiencia demostrable en diseño y simulación de receptores radar, implementación de técnicas de detección y extracción de datos radar utilizando técnicas convencionales e inteligencia artifical, simulación de sistemas de transmisión y recepción en banda base en enlaces de comunicaciones digitales.

Más información y solicitudes

Salario: 26.000€ (de este importe se detraerá la cuota patronal y los días por indemnización) 

URL:  https://portal.uah.es/portal/page/portal...  

Young Graduate Trainees - 80+ positions

European Space Agency

The Netherlands, Germany, France, Italy, Spain and Belgium

 

Description

 

Several YGT on the following topics:

 

Space Situational Awareness - Space Weather

Astronomy

Engineering (Measurement and Control Techniques; 'Green' Technologies)

Mission Data Systems for Operations

Mission Analysis

Flight Dynamics

Software Engineering

AOCS Engineering - Flight Control

Spacecraft Operations

Satellite and Ground Station Operations

Telecommunication Engineering (Radio Frequency)

Medical Operations, Biomedical Engineering

Earth Observation Missions - Long Term Data Preservation

IT Engineering, Cloud Processing, Visualisation, Earth Observation Processing and GIS

Exploitation of Earth Observation Data

 

PhD - Tomographic and Multibaseline Interferometric Techniques in SAR Remote Sensing

The Institute of Environmental Engineering

Zurich, Switzerland

 

Description:

 

The research focuses on investigating generic methods and algorithms in the context of synthetic aperture radar (SAR) tomography and multi-baseline interferometry with the aim to better support the extraction of geo- and biophysical parameters from SAR remote sensing data through a joint exploitation of the spatial, temporal, and polarimetric diversity of multiple SAR observations. The observables are provided by either airborne or spaceborne SAR systems and for experimental validation several test sites with ground measurements are available. This exciting field of research is relevant with respect to new upcoming satellite radar missions and mission proposals as well as with respect to an improved exploitation of existing SAR data archives.

 

We are looking for a highly motivated candidate holding a Master’s degree or equivalent in electrical engineering, computer science, geophysics, physics, or a related field with experience in digital signal and/or image processing. A background in SAR data processing or another field of array signal processing is an asset. The ideal candidate has strong analytical skills and programming experience in Matlab, IDL, C/C++, or equivalent. For a good working communication, oral and written fluency in English is required, and it is essential that the candidate is willing to work in a multidisciplinary and international research team.

 

32 Internships in Earth Sciences

Centre National d’Etudes Spatiales (CNES)
Toulouse, France

The following Internships are offered at CNES on the Earth Sciences domain:

+ A free tool for the processing of images adapted to suit the "Universal Access" context of the International Charter on Space and Major Disasters
+ Analysis of the representation of fine oceanic scales in altimetric measurements in preparation for the SWOT mission – Application to the Gulf of Lions region.
+ Analysis of the variability in sunflower growth and yield, using remote sensing.
+ Analysis of variations in the continental water stocks in the large tropical basins, by means of multi-satellite observation.
+ Auto-classification using the auto-organisational Kohonen maps of the RFI signatures (radio interference) present in the SMOS measurements
+ Classification into multi-temporal image series
+ Contribution to the improvement of the radiometric calibration on the moon.
+ Earth observation image processing application for mobile devices
+ Estimation of the quantity of aerosols in high-resolution image time series
+ Evaluation and calibration of the accelerometers of the SWARM mission at the ESA.
+ Ground humidity in a root zone by ssimilating SMOS surface pressure
+ Implementation of DISPATCH within an operational chain

Ingeniero de I+D, Radar, 2 plazas

Starlab
Barcelona

Description:

Starlab is a private company based in Barcelona, Spain, providing R&D solutions and services to a wide range of institutional and private customers (www.starlab.es). Several ESA, EU, national and private projects are currently being conducted within the Space Engineering Business Unit (Starlab Consulting Division), which aims at bridging the gap between research and society through the development of novel solutions. The enthusiastic candidate we are looking for will act as researcher and technical project manager of several activities dedicated to the development of the R&D areas of the Space Engineering Business Unit, especially in the RADAR Systems account, as well as, in perspective, to project management activities. He or she will be strongly involved at the bidding stage in the preparation of proposals in response to customer invitations to tender and requests for quotations. The candidate must be a problem-killer and team player, able to work efficiently, proactively and with high-quality, given the constraints of time and resources availability of each specific activity.

Key Requirements:

•MSc or PhD in either: Electronic Engineer, Remote Sensing, Aerospace, Telecommunications or Physics

•Detailed knowledge of SAR principles and data processing with, at least, 3 years of relevant experience

•Knowledge of SAR interferometry principles and data processing

•Very good experience in Software Development (C, Idl, Matlab, Python, shell-scripts)

•Fluent in English (spoken and written)

Ingeniero de investigación - Radar (2 plazas)

Empresa: Starlab   www.starlab.es

Researcher and technical project manager of several activities dedicated to the development of the R&D areas of the Space Engineering Business Unit, especially in the RADAR Systems account, as well as, in perspective, to project management activities. He or she will be strongly involved at the bidding stage in the preparation of proposals in response to customer invitations to tender and requests for quotations. The candidate must be a problem-killer and team player, able to work efficiently, proactively and with high-quality, given the constraints of time and resources availability of each specific activity.

Key Requirements:

• MSc or PhD in either:
  • Electronic Engineer
  • Remote Sensing
  • Aerospace
  • Telecommunications
  • Physics
• Detailed knowledge of SAR principles and data processing with, at least, 3 years of relevant experience
• Knowledge of SAR interferometry principles and data processing
• Very good experience in Software Development (C, Idl, Matlab, Python, shell-scripts)
• Fluent in English (spoken and written)