- All Categories (236)
- Data (2)
- News (17)
- Missions (2)
- Events (11)
- Tools (2)
- Activities (5)
- Documents (197)
Event - Meeting
VH-RODA and CEOS SAR workshop
The workshop provided an open forum for the presentation and discussion of current status and future developments related to the calibration and validation of space borne very high-resolution SAR and optical sensors and data products.
Document - User Guide
Third Party Missions, Cat-1 Data Availability
This brochure gives a quick overview on the availability of the Third Party Missions IRS-P3, JERS-1, NIMBUS, Proba, Landsat, KOMPSAT-1, SCISAT-1, Terra/Aqua, NOAA, QSCAT, OrbView, SPOT-1,-2,-3,-4, ALOS.
Document - General Reference
Sterckx-Sindy-ICOS-2017.pdf
Poster presentation at IOCS (International Ocean Colour Science) 2017, 5 -19 May 2017, Lisbon, Portugal.
News - Success Stories
Ship trails in the Bay of Biscay observed using PROBA-V imagery
Ship trails have been perceived as convincing evidence of aerosol-cloud interaction. Ship emissions have been proven to contribute by about 1.9% and 2.9% to the increase in the global total and fine-mode aerosol optical thickness (AOT) respectively over a five year period (Peters et al. 20212).
Data - External Data (Restrained)
SciSat-1: ACE-FTS and MAESTRO
SCISAT-1 data aim at monitoring and analysing the chemical processes that control the distribution of ozone in the upper troposphere and stratosphere. It provides acquisitions from the two instruments MAESTRO and ACE-FTS. MAESTRO: Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation. Dual-channel optical spectrometer in the spectral region of 285-1030 nm. The objective is to measure ozone, nitrogen dioxide and aerosol/cloud extinction (solar occultation measurements of atmospheric attenuation during satellite sunrise and sunset with the primary objective of assessing the stratospheric ozone budget). Solar occultation spectra are being used for retrieving vertical profiles of temperature and pressure, aerosols, and trace gases (O3, NO2, H2O, OClO, and BrO) involved in middle atmosphere ozone distribution. The use of two overlapping spectrometers (280 - 550 nm, 500 - 1030 nm) improves the stray-light performance. The spectral resolution is about 1-2 nm. ACE-FTS: Fourier Transform Spectrometer. The objective is to measure the vertical distribution of atmospheric trace gases, in particular of the regional polar O3 budget, as well as pressure and temperature (derived from CO2 lines). The instrument is an adapted version of the classical sweeping Michelson interferometer, using an optimised optical layout. The ACE-FTS measurements are recorded every 2 s. This corresponds to a measurement spacing of 2-6 km which decreases at lower altitudes due to refraction. The typical altitude spacing changes with the orbital beta angle. For historical reasons, the retrieved results are interpolated onto a 1 km "grid" using a piecewise quadratic method. For ACE-FTS version 1.0, the results were reported only on the interpolated grid (every 1 km from 0.5 to 149.5 km). For versions 2.2, both the "retrieval" grid and the "1 km" grid profiles are available. SCISAT-1 collection provides ACE-FTS and MAESTRO Level 2 Data. As of today, ACE-FTS products are available in version 4.1, while MAESTRO products are available in version 3.13.
Mission - Third Party Missions
SCISAT-1
SCISAT-1 is designed to make observations of Earth's atmosphere and its main instruments are an optical Fourier transform infrared spectrometer and an ultraviolet spectrophotometer.
Document - Technical Note
Review of semi-empirical BRDF models performance on Proba-V and Spot-Vgt time series
Proba-V heritage mission: SPOT-VGT data processing and dissemination - Scientific paper providing overview of SPOT-VGT 15-years of data processing and dissemination
Document - Product Readme Note
Retrievals-for-the-Atmospheric-Chemistry-Experiment-Fourier-Transform-Spectrometer.pdf
This paper describes the approach developed for the retrieval of atmospheric temperature and pressure from the troposphere to the lower thermosphere as well as the strategy for retrievals of volume-mixing ratio profiles of atmospheric species.
Document - General Reference
PV-LAC-COAST-VR-v2.0.pdf
This is the second version (V2) of the Validation Report for the PV-LAC coastal activities.
Document - General Reference
PV-LAC-COAST-SR-v1.1.pdf
In the frame of the PV-LAC project a prototype code has been developed, tested and validated for the atmospheric correction (A/C) and turbidity retrieval of PROBA-V data over turbid coastal areas.
Document - General Reference
PV-LAC-COAST-RBD-v1-1.pdf
The aim of this document is to make a critical review of the algorithms for TSM retrieval and atmospheric correction in turbid coastal waters, to identify the most suitable method (TSM and A/C method) for PROBA-V, to define the validation approach (including identification of the validation data and test sites) and to assess the utility and benefits of 100m coastal products through interaction with the user community.
Activity - Instrument characterisation and algorithm studies
PV-LAC-COAST
The PV-LAC project objectives are to develop, test, and validate two advanced algorithms for the scientific exploitation of the Proba-V mission products.
Document - Product Document
PV-LAC-ATMO-requirements-baseline-document-activity2.pdf
PV-LAC: Advanced Land, Aerosol and Coastal products for PROBA-V - Requirements Baseline Document Activity 2
Document - Algorithms Theoretical Baseline Document
PV-LAC-ATMO-algorithm-theoretical-baseline-document-CISAR-Proba-V-v2.pdf
PV-LAC-ATMO algorithm theoretical baseline document
Document - Algorithms Theoretical Baseline Document
PV-LAC-ATMO-algorithm-theoretical-baseline-document-CISAR-Proba-V-v1.pdf
PV-LAC-ATMO algorithm theoretical baseline document CISAR-PROBA-V
Activity - Instrument characterisation and algorithm studies
PV-LAC-ATMO
The objective of PV-LAC-ATMO Activity is to investigate the added value of a joint surface reflectance.
Document - Algorithms Theoretical Baseline Document
PV-Clouds-Detection-Round-Robin-Baseline.pdf
Project Baseline for Proba-V Cloud Detection Round Robin (PV-CDRR)