Coastal Winds and Sea ICE Detection from the NOAA Near Real-Time Advanced Scatterometer (ASCAT) Processor

Seubson Soisuvarn, Zorana Jelenak, Paul S. Chang, Qi Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The NOAA near real-time operational ASCAT ocean surface wind vectors are produced at 12.5 and 25 km swath grid resolutions. However, due to land contamination most coastal zones are left without any wind retrievals. In this paper, we show how combination of the enhanced resolution normalized radar backscattered cross section (sigma0) algorithm with an aggressive land contribution ratio rejection technique and a land contamination correction algorithm allows for accurate wind to be retrieved within 1-2.5 km of the coast. To achieve acceptable accuracy for operational applications, an additional calibration of the enhanced resolution sigma0 was also found necessary. This algorithm was tested within the Alaskan coastal waters. Variability in the sea ice along the Alaskan coasts also required implementation of a high-resolution ice detection algorithm, which yielded a combined wind and ice product from the ASCAT measurements. The results are presented and discussed.

Original languageEnglish
Title of host publicationIGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6971-6974
Number of pages4
ISBN (Electronic)9781665427920
DOIs
StatePublished - 2022
Event2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022 - Kuala Lumpur, Malaysia
Duration: Jul 17 2022Jul 22 2022

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2022-July

Conference

Conference2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022
Country/TerritoryMalaysia
CityKuala Lumpur
Period07/17/2207/22/22

Keywords

  • ASCAT
  • Coastal Winds
  • Enhanced Resolution
  • Sea Ice

Fingerprint

Dive into the research topics of 'Coastal Winds and Sea ICE Detection from the NOAA Near Real-Time Advanced Scatterometer (ASCAT) Processor'. Together they form a unique fingerprint.

Cite this