NDLI: Fine-Resolution Radar Altimeter Measurements on Land and Sea Ice

Content Provider	IEEE Xplore Digital Library
Author	Patel, A. Paden, J. Leuschen, C. Kwok, R. Gomez-Garcia, D. Panzer, B. Davidson, M.W.J. Gogineni, S.
Copyright Year	1980
Abstract	Satellite radar altimeter (RA) measurements are important for continued monitoring of rapidly changing polar regions. In 2010, the European Space Agency launched CryoSat-2 carrying SIRAL, a Ku-band RA with objectives of determining the thickness and extent of sea ice and the topography of the ice sheets. One difficulty with Ku-band radar surveys over snow and ice is unknown penetration of RA signal into snow cover. Improving our understanding of the interactions of RA signals with snow and ice is needed to produce accurate elevation products. To this end, we developed a low-power, ultrawideband (12-18 GHz) RA for airborne surveys to provide fine resolution measurements capable of detecting both scattering from the surface and layers within sea ice and ice sheets. These measurements provide a means of identifying the dominant scattering location of lower resolution RA measurements comparable to satellite-based instruments. We generated two products: a full-bandwidth waveform (FBW) to identify scattering targets at fine resolution and a reduced-bandwidth waveform (RBW) to represent conventional RA measurements. Retrackers are used to generate height estimates over various surface conditions for comparisons. Over ice sheets, the leading-edge tracker provided consistent ice-surface elevation measurements between the FBW and RBW results; however, there were significant differences between the results from the centroid tracker. Over sea ice, the location of the dominant return between the results from snow-covered sea ice is highly variable. This paper provides an overview of RA surveys in polar regions, a description of the CReSIS system, and a discussion of the results.
Sponsorship	IEEE Geoscience and Remote Sensing Society IEEE URSI
Starting Page	2547
Ending Page	2564
Page Count	18
File Size	4746507
File Format	PDF
ISSN	01962892
Volume Number	53
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sea ice Snow Radar Sea surface Sea measurements Satellites ultrawideband radar Airborne radar frequency-modulated continuous wave (FMCW) radar altimetry review sea ice snow
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Validation of Airborne FMCW Radar Measurements of Snow Thickness Over Sea Ice in Antarctica

Ultrawideband Radar Measurements of Thickness of Snow Over Sea Ice

Simulation of ASIRAS Altimeter Echoes for Snow-Covered First-Year Sea Ice

Field Investigations of Ku-Band Radar Penetration Into Snow Cover on Antarctic Sea Ice

Validation of airborne fmcw radar measurements of snow thickness over sea ice in antarctica

Conjunctive Radar and Laser Altimetry Data Processing to Measure Snow Thickness

An algorithm for time series analysis of ice sheet surface elevations from satellite altimetry

Validating ICESat Over Thick Sea Ice in the Northern Canada Basin

ICESat Geolocation Validation Using Airborne Photography

Fine-Resolution Radar Altimeter Measurements on Land and Sea Ice

Similar Documents

Validation of Airborne FMCW Radar Measurements of Snow Thickness Over Sea Ice in Antarctica

Ultrawideband Radar Measurements of Thickness of Snow Over Sea Ice

Simulation of ASIRAS Altimeter Echoes for Snow-Covered First-Year Sea Ice

Field Investigations of Ku-Band Radar Penetration Into Snow Cover on Antarctic Sea Ice

Validation of airborne fmcw radar measurements of snow thickness over sea ice in antarctica

Conjunctive Radar and Laser Altimetry Data Processing to Measure Snow Thickness

An algorithm for time series analysis of ice sheet surface elevations from satellite altimetry

Validating ICESat Over Thick Sea Ice in the Northern Canada Basin

ICESat Geolocation Validation Using Airborne Photography

Fine-Resolution Radar Altimeter Measurements on Land and Sea Ice