News Archive

Validation practices for satellite-based Earth observation data across communities

Assessing the inherent uncertainties in satellite-data products is a challenging task. Different technical approaches have been developed in the Earth Observation (EO) communities to address the validation problem, which results in a large variety of methods as well as terminology. This paper reviews state-of-the-art methods of satellite validation and documents their similarities and differences. It originates from an activity of the International Space Science Institute (ISSI) for "EO validation across scales” with the involvement of GAIA-CLIM WP3 and WP4 leads.

Making better sense of the mosaic of environmental measurement networks: a system-of-systems approach and quantitative assessment

This discussion paper, summarizing the maturity assessment approach, is under review here at the journal Geoscientific Instrumentation, Methods and Data Systems (GI). Constructive critical reviews are highly welcome.

Gaps Analysis and Impacts Document (GAID) version 3 released

The latest version of our Gaps Analysis and Impacts Document (GAID) is now available. The purpose of the Gaps Assessment and Impacts Document (GAID) is to provide:
 
  (i) the latest status of the on-line catalogue,
 (ii) to provide an analysis of the list of gaps by taking different cross-sections through  the full catalogue. 
 

Paper published

A new paper on adapting the RTTOV radiative transfer model for the purpose of assimilating ground-based microwave radiometer data and is available from GMD

Paper Published

"Evaluation of Temperature and Humidity Profiles of Unified Model and ECMWF Analyses Using GRUAN Radiosonde Observations" Paper published at Atmosphere 

GAIA-CLIM 2nd User workshop - Save the date

We are pleased to invite you to attend the second GAIA-Clim User Workshop.

Location: BELSPO, Brussels, Belgium

Date: November 21-23, 2016

Organisation: Royal Belgian Institute for Space Aeronomy

Paper Published

A review of sources of systematic errors and uncertainties in observations and simulations at 183 GHz” has been published in Atmospheric Measurement Techniques.

1st GAIA-CLIM User Workshop: presentations available

The 1st GAIA-CLIM User Workshop was held on 6 October 2015 at CNR, Tor Vergata, Roma, Italy, with representation from different user communities. The focus of the meeting was on collecting user requirements and on helping identify and prioritise gaps that could either be addressed by the project or should be included in the final gap analysis report. The presentations from the meeting are available here.

Gaps Assessment and Impacts Document available

The objective of this Gaps Assessment and Impacts Document (GAID) is to identify and assess yet unfulfilled user needs (‘gaps’) in the observation capability of Essential Climate Variables (ECVs) within the sphere of the GAIA-CLIM project. The impact assessment has focus on the availability of, and ability to utilize, truly reference quality traceable measurements in support of the long-term sustained space-borne monitoring of a set of ECVs.

1st GAIA-CLIM User Workshop: meeting website available

The 1st GAIA-CLIM User Workshop will be held on 6 October at CNR, Tor Vergata, Roma, Italy. The focus of the meeting shall be on collecting user requirements and on helping identify and prioritise gaps that could either be addressed by the project or should be included in the final gap analysis report. Updated information and registration is now available on the meeting website.

Paper published

An initial paper on “Metrology of ground-based satellite validation: co-location mismatch and smoothing issues of total ozone comparisons” is explaining underlying principles of GAIA-CLIM research and demonstrating their application to total ozone column comparisons. The paper has now been published in AMT.

Results of the user survey available

To find out what users of satellite data for climate applications need, a user requirements survey has been undertaken. The report on the results of the user survey is now available here.

1st GAIA-CLIM User Workshop

The 1st GAIA-CLIM User Workshop will be held on 6 October at CNR, Tor Vergata, Roma, Italy. The focus of the meeting shall be on collecting user requirements and on helping identify and prioritise gaps that could either be addressed by the project or should be included in the final gap analysis report. A preliminary agenda can be found here.

GAIA-CLIM at the 5th ESA-CMUG Integration Meeting

Peter Thorne was delivering a keynote presentation on GAIA-CLIM at the 5th ESA "Climate Modelling User Group" Integration Meeting. The keynote presentation is available here.