USAP-DC

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MOA-derived Structural Feature Map of the Ronne Ice Shelf Data DOI: https://doi.org/10.7265/N5PR7SXR Cite as Hulbe, C., & Ledoux, C. (2011) "MOA-derived Structural Feature Map of the Ronne Ice Shelf" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N5PR7SXR. AMD - DIF Record(s) NSIDC-0497_1 Abstract This data set provides a structural feature map of the Ronne Ice Shelf in Antarctica (also known as the Filchner-Ronne Ice Shelf). The map was developed as part of a project to study fracture propagation in the Ronne Ice Shelf, with special focus on the Evans Ice Stream. Features were digitized from the MODIS Mosaic of Antartica (MOA), a composite of individual Moderate Resolution Imaging Spectradiometer (MODIS) images taken between 20 November 2003 and 29 February 2004, with an effective resolution of 125 m. The data set includes estimates of the shelf boundary, including ice stream grounding zones, outlets of glaciers feeding the shelf, extents of islands and ice rises, and the location of the shelf front, and features observed within the shelf, including suture zones between ice streams, streaklines, fractures (crevasses and rifts), and fold-like features. Individual features can be extracted as a group of points and grouping is used to facilitate identification and plotting. Data files are available via FTP in ASCII text (.txt) format. One image file, in Portable Document Format (.pdf), shows the data included in the dataset, plotted using MATLAB. The data set also provides a MATLAB script which can be used to plot the data. Creator(s): Hulbe, Christina; Ledoux, Christine Date Created: 2011-07-15 Repository: USAP-DC (current) - NSIDC (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -86.557, East: -26.111, South: -84.679, North: -74.355 Temporal Extent(s) Start: 2003-11-20 - End: 2004-02-29 Award(s) NSF 0125754 NSF 0440670 Version: 1 Related Project(s) Collaborative Research: Using Fracture Patterns and Ice Thickness to Study the History and Dynamics of Grounding Line Migration and Shutdown of Kamb and Whillans Ice Streams References Hulbe, C.L., C. LeDoux, and K.C. Cruikshank. 2010. Propagation of Long Fractures in the Ronne Ice Shelf Investigated Using a Numerical Model of Fracture Propagation. Journal of Glaciology, 56 (197), 459-472. doi:10.3189/002214310792447743. (doi:10.3189/002214310792447743) LeDoux, C. 2007. A Boundary Element Model for Fracture Propagation. (MSc thesis, Portland State University.) Haran, T., J. Bohlander, T. Scambos, T. Painter, and M. Fahnestock compilers. 2005, updated 2006. MODIS Mosaic of Antarctica (MOA) Image Map. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media. Scambos, T., T. Haran, M. Fahnestock, T. Painter, and J. Bohlander. 2007. MODIS-Based Mosaic of Antarctica (MOA) Data Sets: Continent-Wide Surface Morphology and Snow Grain Size. Remote Sensing of Environment 111(2): 242-257, doi:10.1016/j.rse.2006.12.020. (doi:10.1016/j.rse.2006.12.020) Keywords Antarctica Glaciers/ice Sheet Glaciology MOA MODIS Ronne Ice Shelf