Upgrade of OSISAF sea-ice concentration data set
7 April 2023, by Stefan Kern
![Time series of OSI SAF Arctic sea-ice extent](https://assets.rrz.uni-hamburg.de/instance_assets/fakmin/34203203/pic-news-20230407-d8cd3f5b9c286678330f52b938e6e76f71a22896.jpg)
Photo: UHH/CEN/StefanKern
We upgraded the EUMETSAT OSI-SAF sea-ice concentration (interim) climate data record from v2.0 to v3.0, i.e. from OSI-450/OSI-430b to OSI-450a/OSI-430a. The combined data set covers the period 1978-10-25 through 2022-12-31 at 25 km grid resolution for both hemispheres. OSI-450a is the CDR, covering years until including 2020; OSI-430a is the interim CDR, covering years 2021 and 2022:
Sea-Ice concentration for Arctic & Antarctic (OSI-450a/OSI-430a)