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CryoSat News

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Published by EOWeb on Mon 18 of Dec 2017

CryoSat Baseline C Ocean Product documents released

In addition to the data sample and product format specification documents, CryoSat scientific users are informed that two key documents dealing with the Baseline C ocean products are now available:


The content of these documents is not frozen and will be regularly updated and improved, based on feedback and recommendations from the ocean user community. Please email eohelp at esa.int regarding feedback and recommendations.

Complementary information about ESA CryoSat Ocean product quality and evolutions can be also found in the reference paper by Bouffard et al (2017), which was a recently published CryoSat special edition of Advances in Space Research.

Published by EOWeb on Wed 13 of Dec 2017

CryoSat Science Server maintenance - 13 December 2017

CryoSat scientific users are informed that today, Wednesday 13 December, problems may be experienced in accessing CryoSat data on the Science Server due to a planned maintenance activity.

We apologise for any possible inconvenience caused.

Published by EOWeb on Tue 12 of Dec 2017

CryoSat Ocean GOP production begins

CryoSat scientific users are informed that the Ocean Baseline C GOP production has started and products are already available on the Science Server.

While the L1b products have passed all quality checks, we have detected a sporadic mishap on some of the L2 whose datation is set to Default Value in the middle of the product. This is causing some corresponding failures in the P2P production.

The decision to release the GOP was made in order to avoid delays on the corresponding Ice product processing. Gaps and affected products shall be replaced with a dedicated reprocessing activity in the next future.

Published by EOWeb on Wed 22 of Nov. 2017

Version 4.0.0 of CryoSat User Tool released

A new version of the CryoSat User Tool (CUT v4.0.0) has recently been released.

The CryoSat User Tool is a Windows stand-alone application for displaying and downloading all the CryoSat products, including the new Baseline C Ocean Products which started production in October.

In the new version of CUT, a memory issue at times occurring during CUT initialisation has been solved.

Users can download the tool and find further information on the CUT web page.

Published by EOWeb on Fri 10 of Nov. 2017

CryoSat Ocean Baseline C production online

Further to the news published on 02 November 2017, we inform users that the CryoSat Ocean Product Baseline C production started as planned on 7 October. The first IOP products are already populating the Science Server.

We are currently monitoring the production to iron out some minor noted shortfalls which are delaying the production of a few specific products.

The first GOP data should be produced and disseminated on approximately 6 December. The NOP products (near real time) will not be initially available.

Since new products are now available, users are recommended to download the new version of the CryoSat User Tool (V4.0.0).

Published by EOWeb on Thu 02 of Nov. 2017

Start of CryoSat Ocean Baseline C production on 06 November

As anticipated on 24 October 2017, the new Ocean Baseline C processors will go live on Monday, 06 November. The complete CryoSat Payload Data System is planned to be suspended from 09:00 to 14:00 UTC. During this time there may be a delay in acquiring data, but we do not expect any data to be lost.

Assuming the TTO proceeds successfully, we expect the last GOP Baseline B data to be generated and distributed on the Science Server with a validity of 07 October 2017. All GOP Baseline C data from 07 October to 06 November 2017 will be processed separately and published later.

We would like to remind everybody that the NOP (near real time) products will not be initially available. Therefore the first Ocean Baseline C data we expect to make available on the Science Server will be the IOP products from 06 November, which should be available approximately 24 hours later.

Published by EOWeb on Tue 24 of Oct. 2017

Planned changes for CryoSat Baseline C processors

We would like to announce that we are planning to transfer the new Ocean Baseline C processors into operations.

 

The following changes will occur after the successful deployment of the Baseline C processors:

 

a) The directory structure in the Science Server will be different for the Ocean data and is described in the following table:

File Type

Folder on Science Server

SIR_NOPM1B

SIR_NOP_L1

SIR_NOPR1B

SIR_NOPN1B

SIR_NOPM_2

SIR_NOP_L2

SIR_NOPR_2

SIR_NOPN_2

SIR_IOPM1B

SIR_IOP_L1

SIR_IOPR1B

SIR_IOPN1B

SIR_IOPM_2

SIR_IOP_L2

SIR_IOPR_2

SIR_IOPN_2

SIR_IOP_2_

SIR_IOP_P2P

SIR_GOPM1B

SIR_GOP_L1

SIR_GOPR1B

SIR_GOPN1B

SIR_GOPM_2

SIR_GOP_L2

SIR_GOPR_2

SIR_GOPN_2

SIR_GOP_2_

SIR_GOP_P2P

b) All Baseline B data will be moved into a separate directory. This data will be accessible for six months and after that time it will be deleted.

 

c) The Ocean GOP data missing at the time of the transfer into operations with a validity ranging to 30 October 2017, will be disseminated as Baseline C data with an additional delay of several weeks because they require dedicated reprocessing.

 

d) Scientific data shall now be disseminated in NetCDF format, but the Header data will still be available in the original EE format.

 

More information on detailed planning will be released in the next few days.

Published by EOWeb on Fri 13 of Oct. 2017

New sample CryoSat NetCDF Ocean Products available to users

CryoSat users are informed that a new sample of the latest CryoSat Ocean Products in NetCDF is now available to download below. This test data has been processed with the updated Baseline-C Ocean Processors, which now generate three classes of products, each with different delivery latencies:

  • Near-Real Time Ocean Products (NOP) – delivered 3 hours after acquisition
  • Intermediate Ocean Products (IOP) – delivered 48 hours after acquisition
  • Geophysical Ocean Products (GOP) – delivered 30 days after acquisition


These products are further classified according to the acquisition mode (LRM, SAR and SARIn). For more information on the new NetCDF Ocean Products, please refer to the updated Ocean Product Format Specification document.

Additionally. new global Pole-to-Pole (P2P) products are concatenated multi-mode L2 products generated for IOP and GOP. Two P2P products are generated per orbit, spanning between the North and South poles and combining successive IOP and GOP products respectively. It should be noted that the P2P products have been given the same product name as the Baseline-B L2 IOP and GOP but do not have the same content, frequency or size.

Below is a sample of L1B and L2 GOP data for 21 August 2011 (00:00 – 04:00). Whilst the data sample provided currently includes only L1B and L2 GOP data, users should note that the format of these products is representative of the IOP and NOP data; the processing of these products is the same and the only difference lies in the use of different input auxiliary files.

Please note that these data samples are intended only for the purpose of becoming familiar with the format of the new CryoSat Ocean Products and are not fully representative of the quality that will be provided when this data is opened to the user community.


Users can find other samples of data products here.

Published by EOWeb on Wed 11 of Oct. 2017

Secrets of hidden ice canyons revealed

We are all aware that Antarctica's ice shelves are thinning, but recently scientists have also discovered huge canyons cutting through the underbelly of these shelves, potentially making them even more fragile. Thanks to the CryoSat and Sentinel-1 missions, new light is being shed on this hidden world.

Antarctica is surrounded by ice shelves, which are thick bands of ice that extend from the ice sheet and float on the coastal waters. They play an important role in buttressing the ice sheet on land, effectively slowing the sheet's flow as it creeps seaward.

The ice sheet that covers Antarctica is, by its very nature, dynamic and constantly on the move. Recently, however, there has been a worrying number of reports about its floating shelves thinning and even collapsing, allowing the grounded ice inland to flow faster to the ocean and add to sea-level rise.

While scientists continue to study the changing face of Antarctica, monitor cracks in the surface of the ice that might signal the demise of a shelf and learn how these changes are affecting the biology of coastal waters, they are also aware of dramatic changes taking place below the surface, hidden from view.

Read more

Published by EOWeb on Mon 04 of Sep. 2017

CryoSat NetCDF Ocean Products release schedule

Following the publication of some intermediary data samples, CryoSat scientific users are informed that ESA is progressing towards the operational release of the new Ocean Products in NetCDF format.

After the analysis of the test data, it has been decided to apply some minor changes to a few variable attributes (e.g. names). Consequently, it is now envisaged that the initial operational products will be available by October 2017.

It is further noted that the availability of the NOP production may be further delayed for operational reasons.

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