Postdoc HF - Biomass 24 months

The Laboratoire des Sciences du Climat et de lEnvironnement (LSCE) and Kayrros (a fast growing Paris based EO company) are looking for a motivated postdoc / young scientist candidate for a research project on groundbreaking methods to quantify forest biomass using very high resolution satellite imagery and artificial intelligence.

LSCE is a worldclass research laboratory established and a collaboration between CEA CNRS and the University of Versailles SaintQuentin (UVSQ). It is part of the Institute Pierre Simon Laplace (IPSL). LSCE hosts approximately 300 researchers engineers and administrative staff including many PhD and masters students. LSCE will provide the employee with the opportunity to work directly on advanced methods with researchers from the LSCE and other institutions

Research scientist on forest monitoring using deep learning models and high resolution satellite images

Develop innovative methods to map forests at very high resolution using remote sensing data from multiple sources and deep learning models

Context:

The development of satellite imagery and LiDAR combined with recent progress in AI are disrupting the way forests are being monitored. While forests are in particular essential for carbon sequestration and biodiversity they are profoundly affected by climate change and disturbances such as fire droughts deforestation events. Accurate and granular forest and forest change maps are essential for managers and public institutions in order to adapt management practices and policies.

The German French research project AI4Forest and the national project One Forest Vision have assembled a world leading international team of researchers in machine learning remote sensing forest ecology (Paris Laboratoire des Sciences du Climat et de lEnvironnement LSCE and Ecole Normale Suprieure INRAE IRD University of Mnster Technical University of Munich Berlin University) to join forces for producing new accurate and periodically updated maps of forest attributes at global scale for forest structure (height) biomass carbon stocks and activity data related to forest loss and gains (disturbances including degradation fires clearcut) using cutting edge artificial intelligence models driven by satellite and field observations. The Paris team at Laboratoire des Sciences du Climat et de lEnvironnement is collaborating with public institutions such as Office National des Forts (ONF) and Institut Gographique National (IGN) to generate these maps over France and use them for the national inventory.

The LSCE is looking for an experienced and motivated researcher who will actively contribute to the production validation interpretation and publication of forest maps with a focus on very high resolution (meter or submeter) and multimodality.

Missions:

• The missions will cover data processing model design training inference interpretation of results and publication in peerreviewed journals:

• Apply and improve existing deeplearning models of forest attributes.

• Use innovative approaches to handle inputs at various resolutions (e.g. Sentinel and SPOT 67.

• Scale canopy maps beyond Metropolitan France (e.g. other European countries French Guiana).

• Access and process satellite imagery and LiDAR using community tools developed by the lab (e.g. Sentinel 1 and 2 Gedi LiDAR HD SPOT 67.

• Implement tools for inclusion of input data sources from multiple spaceborne and airborne platforms as input or validation of AI models (Alsar Nisar Icesat 2 orthophotos Pleiades airborne LiDAR) to improve the accuracy of monitoring of canopy height and biomass and their changes over time.

• Interpret the resulting maps of height and biomass changes using activity data such as degradation deforestation features and additional information on forest types management as well as climatic and soil drivers by developing and using state of the art explainable machine learning and statistical models.

• Promote and diffuse the results of research results at scientific conferences and write research publications in collaboration with national and international experts. Several publications in highprofile journals are expected from the project.

• Supervise students engineers and work with colleagues of the research group for joint publications.

Profile:

• You have a PhD in Remote Sensing / Forest monitoring / Machine Learning / Computer Science.

• You have experience in building and using deep learning models ideally in the context of EObased monitoring of forests and / or land surface properties.

• You have experience in remote sensing.

• You have a publication track record and ability to present scientific results to the scientific community as well as to a diverse range of stakeholders and public audience.

• You like problem solving you are autonomous but want to work in a collaborative environment.

• You are able to lead and structure research projects.

• You are curious enjoy learning and a research environment.

• You want to work on problems that can benefit the environment.

Location: Laboratoire des Sciences du Climat et de lEnvironnement (Saclay in the Orme des Merisiers green area). Remote friendly. LSCE Is a worldclass research laboratory established and a collaboration between CEA CNRS and the University of Versailles SaintQuentin (UVSQ). The LSCE hosts approximately 300 researchers engineers and administrative staff including many PhD and masters students. This project will provide the employee with the opportunity to work directly on advanced methods with researchers from the LSCE and other institutions.

Contract duration: 24 months with an extension possible

Starting date: The position is open from Jan 20 2025 and will remain open until filled. The expected start of the position is April 2025.

Salary: Competitive salary full social and health benefits commensurate with work experience.

Supervision: Main supervisor: Philippe Ciais. Research director at LSCE

Cosupervisors: Ibrahim Fayad (LSCE) Martin Schwartz (LSCE)

How to apply: Applicants should submit a complete application package by email to the contacts below.

The application package should include 1 a curriculum vitae including e.g. important recent publications / projects 2 statement of motivation 3 answers to the selection criteria above 4 names addresses phone numbers and email addresses of at least two references.

Contacts:

References:

Schwartz Martin et al. FORMS: Forest Multiple Source height wood volume and biomass maps in France at 10 to 30 m resolution based on Sentinel1 Sentinel2 and Global Ecosystem Dynamics Investigation (GEDI) data with a deep learning approach. Earth System Science Data 15.11 2023:.