Passive microwave Arctic sea ice melt onset dates from the advanced horizontal range algorithm 1979

Passive microwave Arctic sea ice melt onset dates from the advanced horizontal range algorithm 1979–2022

Published:2023-12-01 Issue:1 Volume:10 Page:
ISSN:2052-4463
Container-title:Scientific Data
language:en
Short-container-title:Sci Data

Author:

Bliss Angela C.^ORCID

Abstract

AbstractThe onset of the summer melt season is a key stage of the Arctic sea ice seasonal cycle and is an indicator of climate change. Surface melting of the bare or snow-covered sea ice is detected using passive microwave satellite observations. The data set presented here is a 44 year record of Arctic sea ice annual melt onset (MO) dates for 1979–2022 produced using an updated version of the Advanced Horizontal Range Algorithm (AHRA). This data product contains annual maps of the sea ice MO date and a set of descriptive statistics summarizing the data. This paper describes a new update of the AHRA methodology, now AHRA V5, including key changes to the algorithm starting date and sea ice mask methodology to improve estimates of early-season MO dates especially near the sea ice periphery. AHRA V5 data are suitable for monitoring trends in Arctic and regional sea ice MO dates and for process studies of atmosphere-sea ice interactions during the early spring and summer months.

Funder

National Aeronautics and Space Administration

NASA Internal Scientist Funding Model in the Cryospheric Sciences Laboratory

Publisher

Springer Science and Business Media LLC

Subject

Library and Information Sciences,Statistics, Probability and Uncertainty,Computer Science Applications,Education,Information Systems,Statistics and Probability

Link

https://www.nature.com/articles/s41597-023-02760-5.pdf

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