Early EASE-GRID Sea Ice Age, 1978-1983 ...

• Main Authors: Meier, Walter N., Stewart, J. Scott
• Format: Dataset
• Language: unknown
• Published: Zenodo 2023
• Subjects: sea ice; sea ice age; Arctic; remote sensing; Sea ice
• Online Access: https://dx.doi.org/10.5281/zenodo.7659077; https://zenodo.org/record/7659077

Early spin-up period Arctic sea ice age data for 1978 through 1983. This product augments the NSIDC sea ice age product: "EASE-Grid Sea Ice Age, Version 4.1" (Tschudi et al., 2019a), which begins in January 1984. See the main product website for complete documentation. The age is estimated via Lagrangrian tracking based on the NSIDC sea ice motion product (Tschudi et al., 2019b), whose source data is primarily passive microwave brightness temperatures and drifting buoys. Age is estimated weekly as annual age categories. Values are: 1 for "first-year ice", ice that is 0-1 years old, and so on for older ice. The ice is "aged" once each year during the week of the annual sea ice minimum extent, generally sometime in September. In this product, the initialization of the field begins with the first available data in late-October 1978. For the existing ice at that time, age is initialized at the start of the product with age=1. The first week of the data, because it is after the minimum, the age of existing ice is ... : This dataset was produced with support from the NASA Cryospheric Sciences Program, Grant #80NSSC21K0763. ...