Practical Use of Earth Observation Data for Official Statistics

Course Description:This intensive workshop is designed for the staff of National Statistical Institutes (NSIs) and scientific institutions working with spatial datasets. The training has been tailored to deliver the most crucial and practically applicable skills within a single day. Participants will acquire the tools necessary to download, process, and analyze both optical and radar satellite data using free, open-source GIS software (QGIS, SNAP) and cloud-based computing platforms (Google Earth Engine). The training script is highly practice-oriented, focusing primarily on real-world Use Cases.

Shortened Training Script:

Copernicus Ecosystem and Data Downloading
The workshop begins with setting up accounts in the Copernicus Data Space Ecosystem. Participants will explore the data browser interface, define their Area of Interest (AOI), and learn how to effectively search for and download relevant optical scenes from the Sentinel-2 satellite, as well as radar scenes from Sentinel-1.
Processing and Analysis of Optical Data in QGIS
The next module of the script focuses on Sentinel-2 optical data. It covers the visualization of images using RGB color composites with dedicated plugins, and the calculation of key vegetation indices (e.g., NDVI, SAVI) using the Raster Calculator. This section concludes with participants performing a simple image reclassification based on established NDVI thresholds, which allows for tasks such as the automatic identification of healthy versus stressed vegetation.
Cloud Processing – Google Earth Engine
The final part of the training introduces cutting-edge cloud technology. Participants will transition their analytical workflows to the Google Earth Engine (GEE) cloud. The script demonstrates how to instantly generate a cloudless image mosaic from a long time series and how to calculate radiometric indices on the fly over large geographical areas. The module finishes with a practical Machine Learning task – performing a supervised land cover classification using provided training points (utilizing algorithms like Support Vector Machine or Random Forest).

Course programme
Trainer	Artur Łączyński, Przemysław Slesiński, Tomasz Milewski
Location	Kraków, Poland
Date and time	10 July 2026; 8:30 a.m. – 2:30 p.m local Kraków time
Description	The course is dedicated to NSI staff, other national authorities and scientific institutions working with EO data. The basic goals are increasing knowledge on EO datasets, their characteristics, methodology of data processing (including machine learning), analysis and presenting.
Tool for practical session	Workshop in groups, GIS software (QGIS), internet access to the COPERNICUS data hub.
10 July 2026
8:30 – 10:00 a.m.	Introduction to Cloud Processing for Earth Observation Available satellite data and their basic characteristics: Copernicus Program (SENTINEL 1-6), LANDSAT, MODIS, NOAA, commercial satellites, orthofotomaps: Optical and radar sensors – data characteristics EO classifiers build on optical data e.g. NDVI, NDWI, TCI EO classifiers build on radar data e.g. scatter back, polarimetry Scientific partners Projects – ESA, EUROSTAT, COPERNICUS, UN SC, FAO Confidentiality of EO data for statistical purposes Reference data Auxiliary data for EO data interpretation and validation Administrative data – IACS, maps, CORINE, LUCAS, cadaster In situ data – statistical collections, IACS
10:00 – 10:15 a.m.	Coffee break
10:15 – 12:15 a.m.	Use cases with demonstration using QGIS Cloud removal e.g. preparing of composite 10 days images Computation of NDVI • SAR data visualization Agriculture - crop recognition, monitoring of plant growth, yield estimation Land cover - recognition of land cover classes Environmental statistics
12:15 - 1:15 p.m.	Lunch break
1:15 - 2:30 p.m.	Demonstration of processing and analyzing of EO data using Google Earth Engine or Copernicus Space data Ecosystem Pre-processing of EO data – preparation of radar and optical data, ready to use data Pixel and object classifications – which method to choose? – demonstration of examplesclassification methods – pixel classification, Object classification (polygons/objects), classifiers in optical and radar data Supervised classification algorithms – machine learning e.g. random forest, support vector machine, decision tree, ANN, maximum likehood Fusion of radar and optical EO data

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10th International Conference on Agricultural Statistics

Practical Use of Earth Observation Data for Official Statistics

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