Author: ewoolliams

Biophysical ECVs, meteoc-3, Updates

One of the goals of MetEOC-3 is to provide  traceability for estimating terrestrial biophysical Essential Climate Variable (ECV) products through in situ, airborne and satellite measurements. Satellite-derived ECV products and the algorithms they use depend on empirical in situ measurements collected on the ground, which requires long term monitoring at field sites. However, ground data collection can be highly laborious and time consuming and thus more efficient methods to produce in situ measurements are required. Drones offer a convenient measurement platform between those done on foot and from manned aircrafts. They also have the potential to provide autonomous test site monitoring and reduce laborious ground measurements requiring humans. MetEOC-3 continues the work started in the previous MetEOC projects in developing traceable …

Drone-based laser scanning and hyperspectral imaging conducted at Wytham Woods test site Read more →

Atmospheric ECVs, meteoc-3, Updates

The European reference radiative transfer model was renamed as Eradiate. Information and news about the model are available at www.eradiate.eu. In this post, we summarise the requirements elicitation process and give a brief overview of ongoing activities. A part of the activities taking place in the framework of MetEOC-3 consists in laying foundations for the development of a next-generation radiative transfer model to support calibration/validation activities. Initially simply named ER2TM, as in European reference radiative transfer model, this software package is meant to provide a reliable, extendable and comprehensive framework for radiative transfer simulation.   A new name, a new website In June 2018, the ER2TM was renamed Eradiate. This uncommon word, which has the same meaning at ‘radiate’, brings a more distinctive …

A Radiative Transfer Model For The Earth Observation Community Read more →

Updates

On Friday 13 October 2017, the Sentinel-5P satellite bearing the Dutch TROPOMI space instrument was successfully launched from Plesetsk, in Siberia. From space, TROPOMI will monitor the air quality and distribution of greenhouse gases worldwide. This groundbreaking instrument will strengthen the position of the Netherlands as a supplier of high-end aerospace instruments.   TROPOMI, which stands for TROPOspheric Monitoring Instrument, is a satellite instrument that will carry out measurements on the troposphere, the lowest layer of our atmosphere. It is capable of measuring air quality to an unprecedented degree of accuracy, and of identifying carbon monoxide, methane, nitrogen oxide, and ozone, among other things. “The launch of TROPOMI means a new standard is being set in the field of atmospheric research,” …

Tropomi measuring air quality, carbon monoxide, methane, nitrogen oxide, and ozone with unprecedented accuracy Read more →

Atmospheric ECVs, meteoc-3, Updates

SPECCHIO is a spectral information system designed to hold reference spectra and spectral campaign data obtained by spectroradiometers. MetEOC-3 is going to use a dedicated SPECCHIO spectral information system instance to deal with the multifaceted spectral point data accumulated in various activities related to sensor CAL/VAL. MetEOC-3 is going to use a dedicated SPECCHIO spectral information system instance to deal with the multifaceted spectral point data accumulated in various activities related to sensor CAL/VAL. SPECCHIO is a specialised software solution to allow the organised storage of spectral data accompanied with detailed metadata to describe the sampling conditions, experimental setups and target properties. One key feature is the easy sharing of data within a research team and the selection of spectral data …

Streamlined Spectral Data Management using SPECCHIO Read more →

Updates

The MetEOC-2 partners have produced second MetEOC-2 newsletter the  detailing some of the activities undertaken in 2016 within the MetEOC-2 programme. Download the newsletter

Level 1 satellite traceability

Meteoc-2 site visit to observe an example of site characterisation field work Agnieszka Bialek and Claire Greenwell of NPL visited the CNES site at La Crau, France, part of RadCalNet, a prototype network of automated vicarious satellite reference sites. This visit was one of four planned visits to RadCalNet prototype sites during the MetEOC 2 project, including the Gobabeb Research and Training Centre, Namibia, where a new member site of RadCalNet is currently being established.

Atmospheric ECVs, Recommendations, Updates

The National Physical Laboratory (NPL) published an extensive report Metrology for Climate – Metrology priorities for the earth observation and climate community, containing the recommendations from international research organisations on the role of metrology in supporting climate research. The report summarises the workshop ‘Metrology for Climate’  hosted by the National Physical Laboratory (NPL) on 21-22 May 2015, organised in conjunction with technical experts from European Space Agency (ESA), EUMETSAT, the European Commission, the UK Met Office and the University of Reading. The two-day workshop investigated the role that metrology should play in supporting the robust measurement of Essential Climate Variables. The concept of Essential Climate Variables (ECVs) provides a systematic and internationally consistent framework of variables/parameters to facilitate the monitoring and understanding of climate change and forecast models. …

Metrology for Climate workshop follows up 2010 BIPM/WMO recommendations challenges for the metrology community specific to ECVs Read more →

Updates

This part of MetEOC-1 utilised and refined the infrastructure created in the opening part of the project through 1) the characterisation of stray-light properties of an airborne hyper-spectral imager and set of ocean colour sensors using the spectrally tuneable laser, 2) construction and testing of a large aperture radiance source (lamp), 3) pre- and post-flight characterisation of the new black bodies used for in-flight calibration and, 4) the design of a new LED-based, self-calibrating radiometer, as well as testing of its constituent components. D’Odorico, P., Gonsamo, A., Damm, A. and Schaepman, M.E. of RSL have their paper ‘Experimental evaluation of Sentinel-2 spectral response functions for NDVI time-series continuity‘ published in IEEE Transactions on Geoscience and Remote Sensing