Call for tenders' details

Title:
Assessment of the Uncertainties Affecting the Sea Surface Reflectance (i.e., the...
Contracting authority:
European Commission, Joint Research Centre - Ispra (JRC-IPR)
Start date:
15/07/2020
Time limit for receipt of tenders:
30/07/2020
Status:
Closed
The deadline to download documents of this call for tenders has been reached. The download of documents is not possible The deadline to download documents of this call for tenders has been reached. The download of documents is not possible
Information
JRC/IPR/2020/LVP/1825-ExA
Assessment of the Uncertainties Affecting the Sea Surface Reflectance (i.e., the rho-factor) in the AERONET-OC Data Processing
Please note that this is not a call for tenders but a publication announcing the Contracting authority’s intention to publish a future negotiated low or middle valueprocedure.

The JRC contributes to the validation of Copernicus Sentinel-3 data with a number of autonomous measurements systems included in the Ocean Colour component of the Aerosol Robotic Network (AERONET-OC). A key element of the AERONET-OC data processing affecting the uncertainties of data products such as the normalized water leaving radiance (i.e., Lwn), is the accurate determination of the sky-glint component in the total radiance measured by above-water radiometer systems. This largely depends on the applied sea-surface reflectance (i.e., the rho-factor) whose value can vary with wavelength, measurement geometry, sea state, sky radiance distribution. Within such a context, the Joint Research Centre seeks for the development and implementation of an AERONET-OC testing tool for a quantitative assessment of the impact of the uncertainties affecting rho-factors and consequently Lwn. The service entails the design and implementation of a testing tool applicable to the generation of spectral Lwn from AERONET-OC field data (https://aeronet.gsfc.nasa.gov/new_web/ocean_color.html) as detailed in the article published in., Journal of Atmospheric and Oceanic Technology, 26, 2009 - https://doi.org/10.1175/2009JTECHO654.1. The testing tool should rely on a Guided User Interface (GUI) allowing to handle AERONET-OC data for selectable sites and periods in addition to a variety of input parameters relevant for the determination of Lwn. The GUI should specifically allow for the handling of: i. input AERONET-OC radiometric data in the the 400-710 nm spectral interval; ii. spectral rho-factors embracing those currently applied in AERONET-OC (i.e., those from Mobley, Applied Optics, 38, 1999), and alternative ones whose accuracy must be comprehensively supported by scientific evidence (e.g., publications), cross-comparisons of values resulting from modelling exercises, or any alternative solution able to warrant consistency of the spectral rho-factors applied.
Services
Planned negotiated procedure for middle/low value contracts
Closed
Unchecked
Best price-quality ratio
72310000
ITC41
Additional CPV Supplementary CPV
72310000
Milestones
15/07/2020 00:00
30/07/2020 23:59
04/08/2020 - 31/08/2020
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