Estimation of ice sheet attenuation by using radar sounder and ice core data

Ana-Maria Ilisei; Jilu Li; Sivaprasad Gogineni; Lorenzo Bruzzone

doi:10.1117/12.2242038

18 October 2016 Estimation of ice sheet attenuation by using radar sounder and ice core data

Ana-Maria Ilisei, Jilu Li, Sivaprasad Gogineni, Lorenzo Bruzzone

Proceedings Volume 10004, Image and Signal Processing for Remote Sensing XXII; 1000416 (2016) https://doi.org/10.1117/12.2242038
Event: SPIE Remote Sensing, 2016, Edinburgh, United Kingdom

Abstract

Due to their great impact on the environment and society, the study of the ice sheets has become a major concern of the scientific community. In particular, the estimation of the ice attenuation is crucial since it enables a more precise characterization of the ice and basal conditions. Although such problem has been often addressed in the literature, the assessment of the ice attenuation is subject to several hypotheses and uncertainties, resulting in a wide range of possible interpretations of the properties of the ice. In this paper, we propose a method for constraining the ice attenuation profiles in the vicinity of an ice core by jointly using coincident radar sounder (RS) data (radargrams) and dielectric profile (DEP) data. Radargrams contain measurements of radar reflected power from ice subsurface dielectric discontinuities (layers) on wide areas. DEP data contain ice dielectric permittivity measurements collected at an ice core. The method relies on the detection of ice layers in the radargrams, the estimation of their depth and reflectivity from the DEP data, and the use of the radar equation for the estimation of ice attenuation through the whole ice column and locally at each layer position. The method has been applied to RS and DEP data acquired at the NEEM core site in Greenland. Experimental results confirm the effectiveness of the proposed method.

Conference Presentation

Citation Download Citation

Ana-Maria Ilisei, Jilu Li, Sivaprasad Gogineni, and Lorenzo Bruzzone "Estimation of ice sheet attenuation by using radar sounder and ice core data", Proc. SPIE 10004, Image and Signal Processing for Remote Sensing XXII, 1000416 (18 October 2016); https://doi.org/10.1117/12.2242038

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available