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Record #199357:

High radar-backscatter regions on Antarctic sea-ice and their relation to sea-ice and snow properties and meteorological conditions / Sascha Wilmes, Christian Haas, Marcel Nicolaus.

Title: High radar-backscatter regions on Antarctic sea-ice and their relation to sea-ice and snow properties and meteorological conditions / Sascha Wilmes, Christian Haas, Marcel Nicolaus.
Author(s): Wilmes, Sascha.
Haas, Christian.
Nicolaus, Marcel.
Date: 2011.
In: International Journal of Remote Sensing. (2011.), Vol. 32(13-14) (2011)
Abstract: Examines temporal and spatial variability of sea-ice Ku-band radar signatures in Southern Ocean during late winter, spring and early summer during 1999-2006. Observes circumpolar broad band of sea ice close to marginal ice zone, characterized by rapid σ⁰ fluctuations and very high radar backscatter. Explains feature by comparing seasonal evolution of σ⁰ with detailed in situ observations of snow and sea-ice properties, and atmospheric forcing derived from NCEP/NCAR reanalysis data. Results indicate that high backscatter regions are caused by metamorphous snow, formed through re-freezing after short-term melt events. Connects process with episodic passes of low-pressure systems entraining warmer air from north. South of Antarctic Circumpolar Trough, sea ice is uninfluenced by this and shows spatially homogenous microwave signatures with low backscatter.
Notes:

International Journal of Remote Sensing. Vol. 32(13-14) :3967-3984 (2011).

Keywords: 551.32 -- Glaciology.
551.326 -- Floating ice.
551.326.7 -- Sea ice.
551.326.021 -- Floating ice, satellite sensing.
551.326.3 -- Floating ice, structure and surface features.
551.578.46 -- Snow cover and snow patches.
551.521 -- Radiation, atmospheric.
621.396.96 -- Radar.
551.321.7 -- Snow cover, measurement of properties.
551.322 -- Ice and snow.
536.421.1 -- Melting.
536.421.4 -- Freezing.
551.524 -- Air temperature.
551.515.1 -- Polar lows and extratropical cyclones.
E6 -- Glaciology: floating ice.
(*80) -- Southern Ocean.
SPRI record no.: 199357

MARCXML

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100 1# ‡aWilmes, Sascha.
245 10 ‡aHigh radar-backscatter regions on Antarctic sea-ice and their relation to sea-ice and snow properties and meteorological conditions /‡cSascha Wilmes, Christian Haas, Marcel Nicolaus.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2011.
300 ## ‡ap. 3967-3984 :‡bill., diags., maps.
500 ## ‡aInternational Journal of Remote Sensing. Vol. 32(13-14) :3967-3984 (2011).
520 3# ‡aExamines temporal and spatial variability of sea-ice Ku-band radar signatures in Southern Ocean during late winter, spring and early summer during 1999-2006. Observes circumpolar broad band of sea ice close to marginal ice zone, characterized by rapid σ⁰ fluctuations and very high radar backscatter. Explains feature by comparing seasonal evolution of σ⁰ with detailed in situ observations of snow and sea-ice properties, and atmospheric forcing derived from NCEP/NCAR reanalysis data. Results indicate that high backscatter regions are caused by metamorphous snow, formed through re-freezing after short-term melt events. Connects process with episodic passes of low-pressure systems entraining warmer air from north. South of Antarctic Circumpolar Trough, sea ice is uninfluenced by this and shows spatially homogenous microwave signatures with low backscatter.
530 ## ‡aAlso issued online ‡uurn:doi:10.1080/01431161003801344‡uhttps://dx.doi.org/10.1080/01431161003801344
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.326 -- Floating ice.‡2udc
650 07 ‡a551.326.7 -- Sea ice.‡2udc
650 07 ‡a551.326.021 -- Floating ice, satellite sensing.‡2udc
650 07 ‡a551.326.3 -- Floating ice, structure and surface features.‡2udc
650 07 ‡a551.578.46 -- Snow cover and snow patches.‡2udc
650 07 ‡a551.521 -- Radiation, atmospheric.‡2udc
650 07 ‡a621.396.96 -- Radar.‡2udc
650 07 ‡a551.321.7 -- Snow cover, measurement of properties.‡2udc
650 07 ‡a551.322 -- Ice and snow.‡2udc
650 07 ‡a536.421.1 -- Melting.‡2udc
650 07 ‡a536.421.4 -- Freezing.‡2udc
650 07 ‡a551.524 -- Air temperature.‡2udc
650 07 ‡a551.515.1 -- Polar lows and extratropical cyclones.‡2udc
650 07 ‡aE6 -- Glaciology: floating ice.‡2local
651 #7 ‡a(*80) -- Southern Ocean.‡2udc
700 1# ‡aHaas, Christian.
700 1# ‡aNicolaus, Marcel.
773 0# ‡7nnas ‡tInternational Journal of Remote Sensing. ‡gVol. 32(13-14) (2011) ‡wSPRI-1038
916 ## ‡a2012/04/02 -- RF
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20221002 ‡bRF