Next Article in Journal
Monitoring and Forecasting the Impact of the 2018 Summer Heatwave on Vegetation
Next Article in Special Issue
Evaluation of Chlorophyll-a and POC MODIS Aqua Products in the Southern Ocean
Previous Article in Journal
Storm Event to Seasonal Evolution of Nearshore Bathymetry Derived from Shore-Based Video Imagery
Previous Article in Special Issue
Ice Surface Temperature Retrieval from a Single Satellite Imager Band
Open AccessArticle

The Detection and Characterization of Arctic Sea Ice Leads with Satellite Imagers

1
Cooperative Institute for Meteorological Satellite Studies (CIMSS), University of Wisconsin-Madison, Madison, WI 53706, USA
2
National Oceanic and Atmospheric Administration (NOAA), Madison, WI 53706, USA
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(5), 521; https://doi.org/10.3390/rs11050521
Received: 29 January 2019 / Revised: 15 February 2019 / Accepted: 27 February 2019 / Published: 4 March 2019
(This article belongs to the Special Issue Satellite Derived Global Ocean Product Validation/Evaluation)
  |  
PDF [18739 KB, uploaded 11 March 2019]
  |     |  

Abstract

Sea ice leads (fractures) play a critical role in the exchange of mass and energy between the ocean and atmosphere in the polar regions. The thinning of Arctic sea ice over the last few decades will likely result in changes in lead distributions, so monitoring their characteristics is increasingly important. Here we present a methodology to detect and characterize sea ice leads using satellite imager thermal infrared window channels. A thermal contrast method is first used to identify possible sea ice lead pixels, then a number of geometric and image analysis tests are applied to build a subset of positively identified leads. Finally, characteristics such as width, length and orientation are derived. This methodology is applied to Moderate Resolution Imaging Spectroradiometer (MODIS) observations for the months of January through April over the period of 2003 to 2018. The algorithm results are compared to other satellite estimates of lead distribution. Lead coverage maps and statistics over the Arctic illustrate spatial and temporal lead patterns. View Full-Text
Keywords: leads; sea ice; MODIS leads; sea ice; MODIS
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Hoffman, J.P.; Ackerman, S.A.; Liu, Y.; Key, J.R. The Detection and Characterization of Arctic Sea Ice Leads with Satellite Imagers. Remote Sens. 2019, 11, 521.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top