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Variations in Water Vapor From AIRS and MODIS in Response to Arctic Sea Ice Change in December 2002–November 2016
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Number of Authors: 72019 (English)In: IEEE Transactions on Geoscience and Remote Sensing, ISSN 0196-2892, E-ISSN 1558-0644, Vol. 57, no 10, p. 7395-7405Article in journal (Refereed) Published
Abstract [en]

Water vapor plays a vital role in the Arctic sea ice and climate change. The Atmospheric Infrared Sounder (AIRS) and the Moderate Resolution Imaging Spectroradiometer (MODIS) are useful tools for studying the water vapor variations over the entire Arctic. In this paper, we discuss precipitable water vapor (PWV) variations from the AIRS and MODIS Level-3 data products in response to Arctic sea ice change during December 2002-November 2016. The results indicate that both AIRS- and MODIS-derived PWV measurements tend to be underestimated, and this underestimation is generally greater for the latter than the former over both land and ocean. Additionally, both the AIRS and MODIS retrievals suggest that the atmospheres are drier in the solid sea ice pack and, to a lesser extent, in the marginal ice zone, than in the open ocean in each season. Moreover, statistically significant correlations between the PWV and sea ice concentration (SIC) anomalies are generally observed in all seasons under different ice conditions except in the open ocean, where variations in the PWV may be attributed to the poleward moisture transport from lower latitudes. The Arctic PWV and SIC variation patterns are also dominated by the atmospheric and ice conditions in the solid sea ice pack, respectively. The monthly mean PWV and SIC time series analysis further reveals that the Arctic PWV variations tend to be affected by a delayed effect of approximately 1.2-1.3 months from SIC changes from a climatological perspective.

Place, publisher, year, edition, pages
2019. Vol. 57, no 10, p. 7395-7405
Keywords [en]
atmospheric humidity, atmospheric optics, atmospheric precipitation, atmospheric radiation, atmospheric techniques, atmospheric temperature, climatology, moisture, oceanographic regions, remote sensing, sea ice, time series, AIRS, Arctic sea ice change, December 2002-November 2016, climate change, Atmospheric Infrared Sounder, Moderate Resolution Imaging Spectroradiometer, entire Arctic, precipitable water vapor variations, MODIS Level-3 data products, MODIS-derived PWV measurements, MODIS retrievals, solid sea ice pack, marginal ice zone, open ocean, sea ice concentration anomalies, different ice conditions, SIC variation patterns, atmospheric ice conditions, Arctic PWV variations, SIC changes, time 1.2 month to 1.3 month, Arctic, Oceans, Sea measurements, MODIS, Atmospheric measurements, Silicon carbide, Arctic water vapor, Atmospheric Infrared Sounder (AIRS), Moderate Resolution Imaging Spectroradiometer (MODIS), sea ice concentration (SIC)
National Category
Natural Sciences
Research subject
SWEDARCTIC 2008, ASCOS
Identifiers
URN: urn:nbn:se:polar:diva-8308DOI: 10.1109/TGRS.2019.2913149OAI: oai:DiVA.org:polar-8308DiVA, id: diva2:1384708
Available from: 2020-01-10 Created: 2020-01-10 Last updated: 2020-01-10

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