Proximal sensing and cal/val activities


Field measures are key activities of Earth Observation (EO) sciences. The generation of remote sensing products often depends on calculations based on in-situ measurements. As an example, it can be mentioned the use of analytical models for the estimation of bio-geophysical parameters, which usually takes advantage from physical relations calibrated with in-situ measures about the bio-optical properties of natural surfaces. Field activities are also performed in order to collect measures comparable with satellite derived data; in this way the accuracy of algorithms implemented for the generation of thematic maps can be evaluated. Furthermore, the collection and analysis of field data by means of scientific instrumentation used both in-situ and in laboratory, is a good way to have a large database for the understanding and/or modelling of interaction processes between electromagnetic energy and natural surfaces. In general, in-situ measures allow a database for both the interpretation of remote sensed data and for the elaboration of the electromagnetic signal to be generated, with positive impacts on EO techniques in the scientific field and for the satisfaction of different stakeholders’ requirements (end-users). Within this context IREA has a long experience carried on thanks to important investments on state-of-the-art instrumentation (e.g. spectroradiometers, thermal camera, solar photometers) and the development of prototypes (e.g. multi-angular goniometer, sampling technique for water fluxes using flow-through method), purposely designed to satisfy the needs of the research activity.

In the following links the field campaigns performed during the last years with the  scientific instrumentation of IREA (see also "Labs and instruments")


Additional Info

Calibration of physically based models for the estimation of bio-geophysical parameters from optical data

Validation of products/maps obtained from the elaboration of Earth observation data

Hyperspectral analysis of reflectance signal for the characterization of different material typologies

2011-12 - Blom CGR Regioni della Convergenza - Attività di supporto e di ricerca per l’elaborazione di dati MIVIS in zona costiera
2010 - Blom CGR BREST - Fieldwork activities supporting AISA and LiDAR data processing in coastal zone

CSIRO Land and Water
Università Milano Bicocca - DISAT
Università degli Studi di Parma - Scienze Ambientali
Università degli Studi di Milano - Facoltà di Agraria
CRA- Sirmione

Stazione Sperimentale Eugenio Zilioli a Sirmione
Spettroradiometro FieldSpec Analytical Spectral Device Inc. Full Resolution Pro spectroradiometer (from 350 to 2500 nm)
Spettroradiometro PhotoResearch SpectraScan PR-650 spectroradiometer (from 380 to 780 nm)
Radiometro Exotech 100 BK radiometer (TM1, TM2, TM3 and TM4 filters)
Fotometro solare EKO MS-120 (368 nm, 500 nm, 675 nm and 778 nm)
Sensore PAR LI-192SA Underwater Quantum Sensor (Photosynthetically Active Radiation 400-700 nm)
Termoradiometro Raytek PM40 (8-14 um)
Ceptometro AccuPAR LP80 (Decagon Devices Inc.)
Fluorescence And Turbidity Analiyzer (Turner Design-SCUFA fluorometer/turbidimeter and thermocouple coupled with hydrodinamic system to acquire spatial profiles in water bodies, syncronously to GPS, temperature and PAR measurements)
Cyclops (Flurimetro ad immersione per determinazione di cianobatteri)
Goniometro-MultiANgular Device for Radiometric Observations over Natural Surfaces
Camera emisferica (Nikon Coolpix fisheye)