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Ice Sheets Essential Climate Variable

ICESat elevation changes 2003-2009 L. Sorensen, DTU-Space Over the last decade, the Greenland Ice Sheet has shown rapid change, characterized by rapid thinning along the margins, accelerating outlet glaciers, and overall increasing mass loss. The state of the Greenland Ice Sheet is of global importance, and has consequently been included in the CCI Programme as a monitored Essential Climate Variable (ECV).

The object of the CCI Ice Sheets project is to maximize the impact of ESA satellite data on climate research, by analysing data from ESA Earth Observation missions such as ERS, Envisat, CryoSat and the new Sentinel series of satellites.

The project will produce data products of the following four parameters, which are important in characterizing the Greenland Ice Sheet as an ECV:

Surface Elevation Change (SEC) gridded data from radar altimetry; 
Ice Velocity (IV) gridded data from synthetic aperture radar interferometry and feature tracking;
Calving Front Location (CFL) time series of marine-terminating glaciers;
Grounding Line Location (GLL) time series of marine-terminating glaciers.

The CCI data will be supplemented with partner agency data from missions such as Landsat and ICESat in order to provide consistent, long term time series of these four parameters. Together with mass change data from GRACE, and melt extent data from satellite microwave observations, the CCI Ice Sheets data sets will improve the monitoring of the most rapidly changing ice sheet on the planet. 

All data will be made available to the public in a transparent format. We believe that the data sets produced van be of great societal importance, particularly due to the connection between Ice Sheets changes and future global sea level changes.

Figure: ICESat elevation changes 2003-2009 (L. Sørensen, DTU-Space). For a large version of the figure click "read more": Read more »

Eighth Ice Sheets Progress Meeting Held in Copenhagen

Arktisk Institut, Strandgade 100HThe eight CCI Ice Sheets progress meeting was successfully held in Arktisk Institut, Copenhagen on Tuesday, June 10th, and at DTU in Lyngby on Wednesday, June 11th.

The data products are being produced and finalised over the summer of 2014. The products will be ready before progress meeting 9 in October, where they will be reviewed. In addition the following topics were covered: Phase 2 planning for both Greenland and Antarctica; the CryoSat-2 project extension; and the Sentinel-1 project extension. Read more »

CCI Ice Sheets Passes Milestone Four

The CCI Ice Sheets project has passed the fourth project milestone with the acceptance of an updated Algorithm Theoretical Baseline Document (ATBD), and updates of the Detailed Processing Model (DPM)  and the Input/Output Definition Document (IODD)

To see the documents click on the links in this news item, or click on "Resources/Documents" in the "Navigation" sidebar. To aid the reader a brief description is given of the contents of each document: Read more »

Calving Front Location Time Series of Sermeq Avannarleq Glacier 1992-2010

The CCI Ice Sheets project partner ENVEO has created a video showing the time evolution of the Sermeq Avannarleq glacier in West Greenland in the time period 1992-2010. The Glacier is seen to be in retreat.

The glacier was selected as a demonstration product since the because of the long time series (over 40 images) and that there is now overlay or shadowing at the calving front. Synthetic Aperture Radar (SAR) and optical satellite sensors provide excellent capabilities for monitoring the calving front of the glacier. The temporal repeat requirements in observing the calving front location (CFL) depend on the dynamic state of an outlet glacier. High velocity glaciers require more frequent repeat observations, in particular during summer when the glacier front touches open water.

The Sermeq Avannarleq glacier is located east of Disko Island at 70° 07' 00" N, 50° 12' 00" W. To see the full animation click here: Read more »

Seventh Ice Sheets Progress Meeting Held in Oslo

The seventh CCI Ice Sheets progress meeting took place in Oslo, Norway on February 20th-21st. The meeting was be hosted by Science [&] Technology AS.

In the main CCI Ice Sheets project the topics of discussion were the data products being produced, as well as system prototype and validation and the final version of the ATBD and IODD. Time was also spent on planning CCI Ice Sheets phase 2. Furthermore the CCN Cryosat-2 and CCN Sentinel-1 were kicked off. Read more »

Happy Holidays!

The CCI Ice Sheets team wishes you a happy holiday!
Thanks for a great two years, and we look forward to continuing our icy relationship in 2014 and beyond!

Sixth Ice Sheets Progress Meeting Held in Copenhagen

The sixth CCI Ice Sheets progress meeting was held in Copenhagen, Denmark on October 8th-9th. The meeting was hosted by our consortium partner DMI.

Day 1 of the meeting was planning data production scheduled to take place in the coming year and discussing the considered extensions of the CCI Ice Sheets project with CryoSat and Sentinel-1 data. The ongoing CCI Antarctica scoping study was also discussed.

Day 2 was spent planning the implementation and early operationalization of the ECV processors and the overall phase 1 system architecture. Validation and CIOP integration were the main topics of discussion. Read more »

Third Issue of CCI Ice Sheets Newsletter Released

Newsletter Issue 3The third issue of the ESA CCI Ice Sheets newsletter is now available here. The newsletter is intended to reach a wider audience than the official project documentation by presenting some of the results in a magazine-like format. The main topic of this issue is prototype data products.

The prototype products demonstrate the format and expected quality of the project output, expected to be finalized in 2014. For each parameter of the CCI Ice Sheets project, a prototype product is available for download from our products page. For further instructions on how to download the prototype please see the newsletter or the article on this page. Read more »

Prototype Products Available at Product Download Page

The Ice_Sheets_cci prototype products are available from the Products Download Page

Fill in the simplified registration form by clicking on ’register’, then enter the following information about yourself: Your name in the following form: Firstname.Lastname, your organisation, and your email address. Choose your password and click ‘Register’. Click ‘log in’ and provide (again) your name on the form Firstname.Lastname, and the password you previously picked.

The SEC, IV, CFL and GLL products are now available and may now be downloaded from the page. Read more »

Participate in the ESA Antarctic Climate Change Initiative (CCI) User Survey

To assess the user requirements for satellite based Antarctic ice sheet data products we have produced a short on-line survey which we would be very grateful if you could complete. The questionnaire is short, containing just 16 multiple choice questions which take only 10 minutes to complete. The survey will remain open until 16.09.2013. We invite you, as a possible future user of these data products, to provide recommendations and feedback about what products you think it would be most useful for an Antarctic CCI project to focus on. 

Link to ESA Antarctic Climate Change Initiative (CCI) user survey

Please see the full invitation below: Read more »

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