Satellite data requirements studies

OPEROZ(2015): OPERational OZone observations using limb geometry

OPEROZ was a requirements study complementary to CAPACITY (2005) for ESA on "User requirements for monitoring the evolution of stratospheric ozone at high vertical resolution" The final report(pdf) contains the derived ozone profiling user and data requirements for operational services and long-term monitoring OPEROZ final report including the executive summary (pdf)
ESA Expro contract 4000112948/14/NL/JK
March 2015

PREMIER (2013)

PREMIER Report for Mission Selection and final presentation related to the ESA Explorer candidate mission PREMIER (Process Exploration through Measurement of infrared and millimetre-wave Emitted Radiation)
ESA Explorer Core missions, candidate missions for EE8
March 2013

Requirements for CO2 monitoring by Sentinel-5 (2012)

Final report and final presentation related to the ESA contract study on: "Requirements for CO2 monitoring by Sentinel-5". The main objective of this study led by Noveltis was to assess quantitatively the capabilities of the Sentinel-5 mission in a view of CO2 monitoring.
ESA contract 4000103801
March 2012

CAPACITY(2005): Composition of the Atmosphere: Progress to Applications in the user CommunITY

CAPACITY Operational Atmospheric Chemistry Monitoring Missions
ESA contract No. 17237/03/NL/GS
June 2005


In the ESA project CAPACITY user and data requirements have been derived for future Operational Atmospheric Chemistry Monitoring Missions.

Fast link to download CAPACITY Executive Summary, Final Report and Technical Documents

Ozone Hole Methane Emissions NO2 Europe

Project Description

The ESA project CAPACITY refers to future Operational Atmospheric Chemistry Monitoring Missions. Here operational is meant in the sense that a reliable service of specified information products can be established that satisfies user needs. Monitoring is meant in the sense that long-term continuity and consistency in the quality of the information products can be achieved.
The objectives of the project are:

* To consult with user communities to develop high level information requirements and the form of the information products. * To identify and prioritise mission objectives. * To derive mission data requirements from the high level user information requirements and iterate these with the users. * To set these requirements against observation systems available or approved for the future. * To identify missing information products or information products of insufficient quality. * To define a global observation system that would satisfy user requirements.

The time frame of this operational system is projected to cover the period 2010 to 2020 concurrent with the operational satellites MetOp and NPOESS. In order to address these objectives a large European consortium has been formed consisting of approximately 30 partners from 9 ESA countries (F, D, UK, I, SW, N, DK, B, NL). The project is led by the Royal Netherlands Meteorological Institute (KNMI) and the core team includes the Rutherford Appleton Laboratory, Univ Leicester, Univ Bremen and industry.

The applications for which requirements are currently being specified and space missions defined include three themes:

Theme A Stratospheric Ozone and Surface UV
Theme B Air Quality
Theme C Climate

Per theme three different sets of requirements are compiled to distinguish between user categories:

(1) Protocol Monitoring and Policy Support
(2) Near-Real Time Applications and Policy Support
(3) Environmental Assessments and Policy Support

Within CAPACITY continuous interactions occured with the user community active within the GMES Service Element PROMOTE (2005):


In the derivation of data level 2/3 requirements and mission concepts from high level user requirements the consortium relies on a large group of modellers using satellite data, and of space research institutes with expertise in retrieval and calibration/validation of satellite data as well as industry with experience in building space instrumentation.

Currently the capabilities of current and planned measurement systems were assessed with respect to the requirements. Missing components being identified. Mission concepts being defined.

The project started 1 October 2003 and finished 2 June 2005..
The user consultation was held 20+21 Jan 2004 at ESTEC, Noordwijk, NL.
The Mid-Term Review was held 31 Aug + 1 Sep 2004 at ESTEC, Noordwijk, NL.
The Final Presentation was 2 June 2005 at ESTEC, Noordwijk, NL.

Co-ordinating institute: Royal Netherlands Meteorological Institute (KNMI)
Address: P.O.Box 201
3730 AE De Bilt
The Netherlands
Tel: +31-30-2206410
E-mail: weelevm at

This website is maintained by Michiel van Weele (weelevm at, last modified: May 2016.