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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 »

Ice_Sheets_cci Data Products Available!

The Ice_Sheets_cci data 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. The IV Jakobshavn time series is expected shortly. Read more »

CCI Ice Sheets Passes Milestone 5

The CCI Ice Sheets project has passed the fifth project milestone with the acceptance of the System Prototype Document (SPD) and the System Verification Report (SVR)

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 »

Ninth Ice Sheets Progress Meeting Held in Copenhagen

GEUS in Øster Voldgade 10 The ninth CCI Ice Sheets progress meeting took place at GEUS, Copenhagen on Thursday, October 23rd and Friday, October 24th. The data products, which have been being produced and finalised over the summer of 2014, were presented to the Climate Research Group (CRG). 

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 »

Fifth CCI Collocation Meeting Held in ESRIN

The 5th Collocation meeting of the CCI takes place in ESRIN, Italy from the 20-22 October 2014.

This year's colocation meeting focuses on how operational the CCI projects are, and what steps are needed to make the production of the Essential Climate Variables systematic and sustainable. To this end, the Copernicus Services, key users of operational ECVs have been invited to present at the meeting. The delegates will hear from the climate, atmospheric, marine and land services. 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!

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