Passive microwave signatures of autumnal sea ice types from ship-based observation

Byong Jun Hwang; Jens K. Ehn; Ryan Galley; David G. Barber

doi:10.1109/IGARSS.2007.4423788

Passive microwave signatures of autumnal sea ice types from ship-based observation

Byong Jun Hwang, Jens K. Ehn, Ryan Galley, David G. Barber

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Surface-scale passive microwave signatures of newly formed sea ice were collected using ship-based radiometers in the Southern Beaufort Sea and Amundsen Gulf between mid October and mid November 2003. Sea ice in the region was highly spatially and temporally variable. Over a heterogeneous area of open water and thin ice, polarization ratios showed multimodal frequency distributions and the differences between surface and satellite radiometric data were large. However, differences were small over a homogeneous area of snow-covered first-year ice during late fall and the corresponding histograms showed unimodal distributions. Our results suggest that sub-pixel heterogeneity is a critical factor in characterizing the mixture rules used in passive microwave sea ice algorithms.

Original language	English
Title of host publication	2007 IEEE International Geoscience and Remote Sensing Symposium
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	4245-4248
Number of pages	4
ISBN (Electronic)	9781424412129
ISBN (Print)	9781424412112
DOIs	https://doi.org/10.1109/IGARSS.2007.4423788
Publication status	Published - 7 Jan 2008
Externally published	Yes
Event	2007 IEEE International Geoscience and Remote Sensing Symposium - Barcelona, Spain Duration: 23 Jun 2007 → 28 Jun 2007 http://www.grss-ieee.org/event/igarss-2007/

Conference

Conference	2007 IEEE International Geoscience and Remote Sensing Symposium
Abbreviated title	IGARSS 2007
Country/Territory	Spain
City	Barcelona
Period	23/06/07 → 28/06/07
Internet address	http://www.grss-ieee.org/event/igarss-2007/

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Cite this

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title = "Passive microwave signatures of autumnal sea ice types from ship-based observation",

abstract = "Surface-scale passive microwave signatures of newly formed sea ice were collected using ship-based radiometers in the Southern Beaufort Sea and Amundsen Gulf between mid October and mid November 2003. Sea ice in the region was highly spatially and temporally variable. Over a heterogeneous area of open water and thin ice, polarization ratios showed multimodal frequency distributions and the differences between surface and satellite radiometric data were large. However, differences were small over a homogeneous area of snow-covered first-year ice during late fall and the corresponding histograms showed unimodal distributions. Our results suggest that sub-pixel heterogeneity is a critical factor in characterizing the mixture rules used in passive microwave sea ice algorithms.",

keywords = "Microwave, Radiometry, Sea ice, Spatial heterogeneity",

author = "Hwang, {Byong Jun} and Ehn, {Jens K.} and Ryan Galley and Barber, {David G.}",

year = "2008",

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doi = "10.1109/IGARSS.2007.4423788",

language = "English",

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pages = "4245--4248",

booktitle = "2007 IEEE International Geoscience and Remote Sensing Symposium",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007 ; Conference date: 23-06-2007 Through 28-06-2007",

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Hwang, BJ, Ehn, JK, Galley, R & Barber, DG 2008, Passive microwave signatures of autumnal sea ice types from ship-based observation. in 2007 IEEE International Geoscience and Remote Sensing Symposium., 4423788, Institute of Electrical and Electronics Engineers Inc., pp. 4245-4248, 2007 IEEE International Geoscience and Remote Sensing Symposium, Barcelona, Spain, 23/06/07. https://doi.org/10.1109/IGARSS.2007.4423788

Passive microwave signatures of autumnal sea ice types from ship-based observation. / Hwang, Byong Jun; Ehn, Jens K.; Galley, Ryan et al.

2007 IEEE International Geoscience and Remote Sensing Symposium. Institute of Electrical and Electronics Engineers Inc., 2008. p. 4245-4248 4423788.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Passive microwave signatures of autumnal sea ice types from ship-based observation

AU - Hwang, Byong Jun

AU - Ehn, Jens K.

AU - Galley, Ryan

AU - Barber, David G.

PY - 2008/1/7

Y1 - 2008/1/7

N2 - Surface-scale passive microwave signatures of newly formed sea ice were collected using ship-based radiometers in the Southern Beaufort Sea and Amundsen Gulf between mid October and mid November 2003. Sea ice in the region was highly spatially and temporally variable. Over a heterogeneous area of open water and thin ice, polarization ratios showed multimodal frequency distributions and the differences between surface and satellite radiometric data were large. However, differences were small over a homogeneous area of snow-covered first-year ice during late fall and the corresponding histograms showed unimodal distributions. Our results suggest that sub-pixel heterogeneity is a critical factor in characterizing the mixture rules used in passive microwave sea ice algorithms.

AB - Surface-scale passive microwave signatures of newly formed sea ice were collected using ship-based radiometers in the Southern Beaufort Sea and Amundsen Gulf between mid October and mid November 2003. Sea ice in the region was highly spatially and temporally variable. Over a heterogeneous area of open water and thin ice, polarization ratios showed multimodal frequency distributions and the differences between surface and satellite radiometric data were large. However, differences were small over a homogeneous area of snow-covered first-year ice during late fall and the corresponding histograms showed unimodal distributions. Our results suggest that sub-pixel heterogeneity is a critical factor in characterizing the mixture rules used in passive microwave sea ice algorithms.

KW - Microwave

KW - Radiometry

KW - Sea ice

KW - Spatial heterogeneity

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U2 - 10.1109/IGARSS.2007.4423788

DO - 10.1109/IGARSS.2007.4423788

M3 - Conference contribution

AN - SCOPUS:82355168771

SN - 9781424412112

SP - 4245

EP - 4248

BT - 2007 IEEE International Geoscience and Remote Sensing Symposium

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2007 IEEE International Geoscience and Remote Sensing Symposium

Y2 - 23 June 2007 through 28 June 2007

ER -

Passive microwave signatures of autumnal sea ice types from ship-based observation

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