OSISAF HL News

Mon, 2 Jan 2012 - Delayed sea ice products

Mon, 2 Jan 2012 00:00:00 +0000

Due to a problem with the distribution of products to our FTP server, the sea ice products were 3 hours delayed at the OSI SAF FTP server today. The distribution is now back to nominal.

Thu, 15 Dec 2011 - Missing low resolution ice drift product

Thu, 15 Dec 2011 00:00:00 +0000

The low resolution sea ice drift production failed this morning. The production has been re-run and the latest product is now available through our FTP server as usual, ftp://osisaf.met.no/prod

Tue, 13 Dec 2011 - SSM/I input data back to nominal

Tue, 13 Dec 2011 00:00:00 +0000

The SSM/I data stream from NOAA is now back to nominal, and data since 09UTC are available. The OSI SAF sea ice products might still experience missing data areas in the the product that will be distributed around 04 UTC tomorrow (14-12-2011).

Tue, 13 Dec 2011 - Missing SSM/I input data

Tue, 13 Dec 2011 00:00:00 +0000

Due to a problem with the data flow of SSM/I data to NOAA, the OSI SAF has not received SSM/I data since yesterday afternoon. This results in missing orbits of input data to the sea ice concentration, edge and type products and there are a few holes of missing data in the products dated 12.12.2011.
This issue has been reported and we hope the problem will be sorted out soon.

Mon, 12 Dec 2011 - Update for Sea Ice Concentration, Edge and Type

Mon, 12 Dec 2011 00:00:00 +0000

The NWP input data for the OSI SAF global sea ice concentration, edge and type products have been updated on 12-12-2011. These products now use the 0.25 degree resolution ECMWF NWP fields for the atmospheric correction that is applied to the brightness temperatures. Previously the 0.5 degree resolution fields were used. The update has a minor positive effect on the sea ice products.

Wed, 7 Dec 2011 - New version of reprocessed sea ice concentration data set

Wed, 7 Dec 2011 00:00:00 +0000

The OSI SAF reprocessed sea ice concentration data set (OSI-409) has been updated and a new version v1.1 released. Two changes has been introduced to the new version of the data set:

Fixed bug in uncertainty estimates.
Extended data set period, now covering October 1978 - October 2009.

The new version of the data set, updated documentation and quick looks are available at the OSI SAF sea ice web portal:
http://osisaf.met.no/p/ice/ice_conc_reprocessed.html

28.10.2011 - EUMeTrain presents Ocean and Sea week training sessions

From 31 October to 3 November 2011 the EUMETSAT-sponsored training project EUMeTrain will host an event week on Ocean and Sea applications.

This EUMeTrain event week consists of several online sessions. The event week should serve as an exchange on the experience for the forecasting on shiproutes, but also advocate the benfits that the use of ASCAT data (Metop) as well as the radar altimetry data povided by Jason-2 can have to the operational maritime forecaster.

Registration for this event week is required. When you have registered you will automatically receive the required invitation. For those of you that will miss this event, all the sessions will be recorded for download.

EUMeTrain is EUMETSATs largest international training project which develops training material and the supports training in the field of satellite meteorology in combination with other meteorological data sources. EUMeTrains main goal is training and providing training material, supporting the EUMETSAT programs with special weight on hazardous weather events.

Further information on the event and the full timetable are available on the EUMeTrain website.

Mon, 10 Oct 2011 - Delayed distribution on HL FTP

Mon, 10 Oct 2011 00:00:00 +0000

Due to a temporary failure of our FTP servers early Monday 10th Oct 2011, todays sea ice products (dated 20111009) were delayed on ftp://osisaf.met.no.
Note that this did not impact distribution on EUMETCast.
All systems are back to normal now.

Wed, 5 Oct 2011 - AMSR-E data outage

Wed, 5 Oct 2011 00:00:00 +0000

On October 4th 2011, the AMSR-E instrument stopped functionning due to a problem with the antenna rotation.
As a consequence, the Low-Resolution Sea Ice Drift (LRSID) product delivered on Oct 5th, and covering sea ice displacements from Oct 2nd to 4th has incomplete AMSR-E coverage.
As of today, no new AMSR-E data was received at met.no and we thus expect reduced or no coverage in the coming days as well.
While NASA and JAXA investigate, users of the LRSID product should be prepared to experience limited or no coverage in the AMSR-E single-sensor product, while the multi-sensor/merged product achieves nominal coverage with ASCAT and SSM/I.

Mon, 8 Aug 2011 - Missing data in sea ice product dated 06.08.2011

Mon, 8 Aug 2011 00:00:00 +0000

Missing SSM/I data caused missing sea ice concentration coverage over the Beaufort Sea and Canadian Arctic Archipelago in the NH product with timestamp 06-08-2011 12 utc, and over Cosmonaut Sea in the SH product with same timestamp.
Coverage is back to nominal in both NH and SH product files dated 07-08-2011.

Wed, 18 May 2011 - ASCAT data nominal

Wed, 18 May 2011 00:00:00 +0000

The distribution of ASCAT data was back to nominal on 16. May at 10:51 (after a data outage since 14. May). The sea ice edge and type products for 16. May therefore had partial coverage of ASCAT data. The product for 17. May had normal coverage.

Sun, 15 May 2011 - Missing ASCAT data

Sun, 15 May 2011 00:00:00 +0000

Due to missing ASCAT data since 14. May, the OSI SAF sea ice edge and sea ice type products are currently produced without the expected ASCAT input. These two multi sensor sea ice products are therefore delivered based on SSM/I alone, and the missing ASCAT input may lead to reduced quality.
Nominal dissemination of ASCAT data is not expected to resume before 16.May at the earliest.