Airborne measurements of arctic Sea Ice, glacier and snow emissivity at 24-183 GHz

Tim J. Hewison; Nathalie Selbach; Georg Heygster; Jon P. Taylor; Andrew J. McGrath

doi:10.1109/IGARSS.2002.1026797

Airborne measurements of arctic Sea Ice, glacier and snow emissivity at 24-183 GHz

Tim J. Hewison, Nathalie Selbach, Georg Heygster, Jon P. Taylor, Andrew J. McGrath

Research output: Contribution to conference › Paper › peer-review

13 Citations (Scopus)

Abstract

Microwave radiometers were operated on a research aircraft during low-level flights in the Arctic in March 2001. Data from these instruments are used to calculate surface emissivity at millimetre wavelengths. This calculation includes the retrieval of an effective temperature from multiple channels centred at 183 GHz. Emissivity spectra will be presented for a range of surface types, including open water, new ice (nilas), first year, multi-year, and glacial ice. These show that the emissivity of older ice types is lower at 24 GHz, decreases further at higher frequencies, but usually starts to increase by 157 or 183 GHz. These results will help exploit data from satellite instruments, such as AMSU, in the Arctic.

Original language	English
Pages	2851-2855
Number of pages	5
DOIs	https://doi.org/10.1109/IGARSS.2002.1026797
Publication status	Published - 2002
Externally published	Yes
Event	2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002) - Toronto, Ont., Canada Duration: 24 Jun 2002 → 28 Jun 2002

Conference

Conference	2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002)
Country/Territory	Canada
City	Toronto, Ont.
Period	24/06/02 → 28/06/02

Access to Document

10.1109/IGARSS.2002.1026797Licence: In Copyright

Cite this

@conference{cd44bdd478e24c64a26a42ce667a205e,

title = "Airborne measurements of arctic Sea Ice, glacier and snow emissivity at 24-183 GHz",

abstract = "Microwave radiometers were operated on a research aircraft during low-level flights in the Arctic in March 2001. Data from these instruments are used to calculate surface emissivity at millimetre wavelengths. This calculation includes the retrieval of an effective temperature from multiple channels centred at 183 GHz. Emissivity spectra will be presented for a range of surface types, including open water, new ice (nilas), first year, multi-year, and glacial ice. These show that the emissivity of older ice types is lower at 24 GHz, decreases further at higher frequencies, but usually starts to increase by 157 or 183 GHz. These results will help exploit data from satellite instruments, such as AMSU, in the Arctic.",

author = "Hewison, {Tim J.} and Nathalie Selbach and Georg Heygster and Taylor, {Jon P.} and McGrath, {Andrew J.}",

year = "2002",

doi = "10.1109/IGARSS.2002.1026797",

language = "English",

pages = "2851--2855",

note = "2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002) ; Conference date: 24-06-2002 Through 28-06-2002",

}

TY - CONF

T1 - Airborne measurements of arctic Sea Ice, glacier and snow emissivity at 24-183 GHz

AU - Hewison, Tim J.

AU - Selbach, Nathalie

AU - Heygster, Georg

AU - Taylor, Jon P.

AU - McGrath, Andrew J.

PY - 2002

Y1 - 2002

N2 - Microwave radiometers were operated on a research aircraft during low-level flights in the Arctic in March 2001. Data from these instruments are used to calculate surface emissivity at millimetre wavelengths. This calculation includes the retrieval of an effective temperature from multiple channels centred at 183 GHz. Emissivity spectra will be presented for a range of surface types, including open water, new ice (nilas), first year, multi-year, and glacial ice. These show that the emissivity of older ice types is lower at 24 GHz, decreases further at higher frequencies, but usually starts to increase by 157 or 183 GHz. These results will help exploit data from satellite instruments, such as AMSU, in the Arctic.

AB - Microwave radiometers were operated on a research aircraft during low-level flights in the Arctic in March 2001. Data from these instruments are used to calculate surface emissivity at millimetre wavelengths. This calculation includes the retrieval of an effective temperature from multiple channels centred at 183 GHz. Emissivity spectra will be presented for a range of surface types, including open water, new ice (nilas), first year, multi-year, and glacial ice. These show that the emissivity of older ice types is lower at 24 GHz, decreases further at higher frequencies, but usually starts to increase by 157 or 183 GHz. These results will help exploit data from satellite instruments, such as AMSU, in the Arctic.

UR - http://www.scopus.com/inward/record.url?scp=0036400405&partnerID=8YFLogxK

U2 - 10.1109/IGARSS.2002.1026797

DO - 10.1109/IGARSS.2002.1026797

M3 - Paper

AN - SCOPUS:0036400405

SP - 2851

EP - 2855

T2 - 2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002)

Y2 - 24 June 2002 through 28 June 2002

ER -

Airborne measurements of arctic Sea Ice, glacier and snow emissivity at 24-183 GHz

Abstract

Conference

Access to Document

Other files and links

Fingerprint

Cite this