Mapping of the DOME-C area in Antarctica by an airborne L-band radiometer

Niels Skou; Steen Savstrup Kristensen; Sten Schmidl Søbjærg; Jan E. Balling

doi:10.1109/IGARSS.2014.6947264

Mapping of the DOME-C area in Antarctica by an airborne L-band radiometer

Niels Skou, Steen Savstrup Kristensen, Sten Schmidl Søbjærg, Jan E. Balling

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

Abstract

A 350 × 350 km area near the Concordia station on the high plateau of Dome C in Antarctica has been mapped by an airborne L-band radiometer system. The area was expected to display a rather uniform brightness temperature close to the yearly mean temperature — well suited for calibration checks for spaceborne instruments like SMOS, Aquarius, and SMAP. The measured brightness temperatures shows unexpected variations like 8 K variation on an East-West profile through Concordia, and in certain cases a slope of almost 1 K per km. Comparing the measured brightness temperature map with bottom topography reveals a convincing correlation. Simulations show that variations in bedrock topography can indeed modulate the brightness temperature appropriately to explain the observed variations.

Original language	English
Title of host publication	Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014
Number of pages	4
Publisher	IEEE
Publication date	2014
Pages	3610-3613
ISBN (Electronic)	9781479957750
DOIs	https://doi.org/10.1109/IGARSS.2014.6947264
Publication status	Published - 2014
Event	IEEE International Geoscience and Remote Sensing Symposium: Energy and our Changing Planet - Quebec, Canada Duration: 13 Jul 2014 → 18 Jul 2014 http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html%3FConf_ID%3D20707

Conference

Conference	IEEE International Geoscience and Remote Sensing Symposium
Country	Canada
City	Quebec
Period	13/07/2014 → 18/07/2014
Other	In collaboration with the 35th Canadian Symposium on Remote Sensing (CSRS)
Internet address	http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html%3FConf_ID%3D20707

Keywords

Geoscience
Antarctica
Brightness temperature
Calibration
L-band
radiometer
Radiometry
Surfaces
Temperature measurement

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Cite this

@inproceedings{5c6db17e4dc64eb2b57040e07af95e34,

title = "Mapping of the DOME-C area in Antarctica by an airborne L-band radiometer",

abstract = "A 350 × 350 km area near the Concordia station on the high plateau of Dome C in Antarctica has been mapped by an airborne L-band radiometer system. The area was expected to display a rather uniform brightness temperature close to the yearly mean temperature — well suited for calibration checks for spaceborne instruments like SMOS, Aquarius, and SMAP. The measured brightness temperatures shows unexpected variations like 8 K variation on an East-West profile through Concordia, and in certain cases a slope of almost 1 K per km. Comparing the measured brightness temperature map with bottom topography reveals a convincing correlation. Simulations show that variations in bedrock topography can indeed modulate the brightness temperature appropriately to explain the observed variations.",

keywords = "Geoscience, Antarctica, Brightness temperature, Calibration, L-band, radiometer, Radiometry, Surfaces, Temperature measurement",

author = "Niels Skou and Kristensen, {Steen Savstrup} and S{\o}bj{\ae}rg, {Sten Schmidl} and Balling, {Jan E.}",

year = "2014",

doi = "10.1109/IGARSS.2014.6947264",

language = "English",

pages = "3610--3613",

booktitle = "Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014",

publisher = "IEEE",

address = "United States",

note = "IEEE International Geoscience and Remote Sensing Symposium : Energy and our Changing Planet, IGARSS 2014 ; Conference date: 13-07-2014 Through 18-07-2014",

url = "http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html%3FConf_ID%3D20707",

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Skou, N , Kristensen, SS , Søbjærg, SS & Balling, JE 2014, Mapping of the DOME-C area in Antarctica by an airborne L-band radiometer. in Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014. IEEE, pp. 3610-3613, IEEE International Geoscience and Remote Sensing Symposium, Quebec, Canada, 13/07/2014. https://doi.org/10.1109/IGARSS.2014.6947264

Mapping of the DOME-C area in Antarctica by an airborne L-band radiometer. / Skou, Niels ; Kristensen, Steen Savstrup ; Søbjærg, Sten Schmidl ; Balling, Jan E.

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014. IEEE, 2014. p. 3610-3613.

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

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N2 - A 350 × 350 km area near the Concordia station on the high plateau of Dome C in Antarctica has been mapped by an airborne L-band radiometer system. The area was expected to display a rather uniform brightness temperature close to the yearly mean temperature — well suited for calibration checks for spaceborne instruments like SMOS, Aquarius, and SMAP. The measured brightness temperatures shows unexpected variations like 8 K variation on an East-West profile through Concordia, and in certain cases a slope of almost 1 K per km. Comparing the measured brightness temperature map with bottom topography reveals a convincing correlation. Simulations show that variations in bedrock topography can indeed modulate the brightness temperature appropriately to explain the observed variations.

AB - A 350 × 350 km area near the Concordia station on the high plateau of Dome C in Antarctica has been mapped by an airborne L-band radiometer system. The area was expected to display a rather uniform brightness temperature close to the yearly mean temperature — well suited for calibration checks for spaceborne instruments like SMOS, Aquarius, and SMAP. The measured brightness temperatures shows unexpected variations like 8 K variation on an East-West profile through Concordia, and in certain cases a slope of almost 1 K per km. Comparing the measured brightness temperature map with bottom topography reveals a convincing correlation. Simulations show that variations in bedrock topography can indeed modulate the brightness temperature appropriately to explain the observed variations.

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KW - Brightness temperature

KW - Calibration

KW - L-band

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KW - Radiometry

KW - Surfaces

KW - Temperature measurement

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