IMPRS course 'Remote sensing'

  • Beginn: 06.03.2023
  • Ende: 17.03.2023
IMPRS course 'Remote sensing'

1.  General information

Date: March 6-17, 2023
Location: MPI for Biogeochemistry, Jena
Teacher: Gregory Duveiller, Julia Marshall, Felix Cremer, Javier Pachero, Sophia Walther, Daniel Pabon, Nuno Carvalhais


2.  Rationale & Objective

Earth Observation is increasingly used in Earth System science and Biogeochemistry. PhD students in various different fields have now at their disposal an increasing richness of data products that describe the state of terrestrial ecosystems (e.g. biomass, GPP, soil moisture) that are partly or fully derived from remote sensing observations. Many students are keen to use these datastreams, but often they do not have much information/ background knowledge of what is behind these products, and thus what are their strengths and limitations.

In this light, rather than provide a standard course on RS explaining the theory from scratch, we propose to deconstruct so-to-say some common RS products / datastreams and explain what is behind them.

The course would then also include some more practical hands-on sessions in which we finish with examples of how to collect data and use it for some of our applications.


3.  Preliminary agenda

Day 1 - Overall introduction (9:00-10:30) - Greg
  • history of RS…
  • overview of different things that can be seen across the spectrum
  • some concepts of satellites (choice of orbit, resolution trade-offs, passive/active)

Day 1 - Atmospheric products (11:00-12:30) - Julia

  • Retrievals --> how we go from spectral measurements to atmospheric composition
  • Limitations --> light path errors, clear-sky biases, interpreting column-integrated values, the role of transport

Day 1 - Hands-on 1 (14:00-15:30]) - Julia, Chris?

  • construct your own satellite mission
  • trade-offs between resolution/coverage/SNR…

Day 2 - Energy Balance (9:00-10:30) - Greg

  • albedo --> from multi-angular observations using moving kernels
  • LST --> TES/Split window/etc… from Brigthness temperatures & emissivity
  • CERES ?

Day 2 - Plant productivity (11:00-12:30) - Javi, Sophia

  • GPP --> from LUE based on fAPAR/LAI --> radiative transfer in optical domain, perhaps introduce PRI and link to LUE
  • SIF --> difference with GPP --> how SIF can be obtained from atmo measurements…
  • going beyong NDVI ?.. NIRv? kNDVI? etc… ?

Day 2 - Hands-on 2 (14:00-15:30) - Felix, Chris, Daniel

  • processing large amounts of data: Sentinel 2 & Snap?
  • cloud computing: GEE / OpenEO / FORCE / other initiatives

Day 3 - Microwave products (9:00-10:30) - Felix

  • Biomass --> explain SAR, lidar, (LTS?)
  • Soil moisture / VOD --> passive microwave, more SAR

Day 3 - Vegetation dynamics, times series and land cover (11:00-12:30) - Daniel? Felix, Greg?

  • Phenology --> algorithms to detects start-of-season, peak-of-season, length-of-season… TimeSat/ Savitzky-Golay / etc…
  • Land Cover & classifications?

Day 3 - Hands-on 3 (14:00-15:30) - Nuno

  • bring a model-data integration (parameter inversion using eddy or just remote sensing data) exercise + theory


4.  Registration


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