Pumice rafts in the global ocean: a remote sensing assessment

He, Shuo; Qi, Lin; Wang, Menghua; Le, Chengfeng; Hu, Chuanmin

doi:10.1080/15481603.2025.2555093

i

Pumice rafts in the global ocean: a remote sensing assessment

2025
By He, Shuo ; Qi, Lin ; Wang, Menghua ; Le, Chengfeng ; Hu, Chuanmin
Source: GIScience & Remote Sensing, 62(1)

[PDF - 12.79 MB]

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Journal Title:

GIScience & Remote Sensing
Personal Author:

He, Shuo ; Qi, Lin ; Wang, Menghua ; Le, Chengfeng ; Hu, Chuanmin
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research)
Description:

Pumice rafts mainly originate from submarine volcanic eruptions, which can be captured by ocean color satellite sensors as shown in several case studies. On a global scale, however, there is a lack of systematic evaluation using consistent algorithms and methods. Here, using daily MODIS (Aqua and Terra) images, we characterize pumice rafts from eight of the nine reported pumice raft events since 2000, representing approximately 15% of all recorded submarine eruptions. For each event, we characterize the duration, daily areal coverage, daily mean pumice areal density, and drift paths of the pumice rafts. Large-scale pumice rafts are found to cover more than 200 km2 of sea surface in a water area exceeding 2,000 km2, which can last for several months before dispersing to the water column and becoming no longer observable from satellites. Surface ocean currents and winds are found to be the major factors affecting the pumice raft drift trajectories and areal coverage.
Source:

GIScience & Remote Sensing, 62(1)
DOI:

https://doi.org/10.1080/15481603.2025.2555093
ISSN:

1548-1603 ; 1943-7226
Format:

pdf
Publisher:

Informa UK Limited
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by-nc/4.0/
Rights Information:

CC BY-NC
Compliance:

Library
Download URL:

https://repository.library.noaa.gov/view/noaa/75204/noaa_75204_DS1.pdf
File Type:

[PDF - 12.79 MB]
Collection(s):

National Environmental Satellite and Data Information Service (NESDIS)
Main Document Checksum:

urn:sha-512:58df6b7d5356c948873502df957ad2f564520e0e0bd3caa9c05ffd4d984564b66ee0b838c97cc7ff9bd2293730f94d79817b066ae6e7099aecf9f93c7e823faf

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