Satellite-Derived Volume Loss Rates and Glacier Speeds for the Cordillera Darwin Icefield, Chile

Melkonian, A. K.; Willis, M. J.; Pritchard, M. E.; Rivera, A.; Bown, F.; Bernstein, S. A.
September 2012
Cryosphere Discussions;2012, Vol. 6 Issue 4, p3503
Academic Journal
The article presents a study on icefield-wide volume change rate and glacier speed estimates for the Cordillera Darwin Icefield (CDI) in Southern Chile. It says that velocities are measured from radar and optical imagery and the study used digital elevation models (DEMs) and weighted linear regression. Results showed that the CDI lost mass at an average rate of 3.9±0.3 Gtyr(-1) and the equivalent to a sea level rise (SLR) of 0.01±0.001 millimeter Gtyr(-1).


Related Articles

  • Mapping of debris-covered glaciers in the Garhwal Himalayas using ASTER DEMs and thermal data. Bhambri, R.; Bolch, T.; Chaujar, R. K. // International Journal of Remote Sensing;12/10/2011, Vol. 32 Issue 23, p8095 

    Mapping of debris-covered glaciers using remote-sensing techniques is recognized as one of the greatest challenges for generating glacier inventories and automated glacier change analysis. The use of visible (VIS) and near-infrared (NIR) bands does not provide sufficient continual information to...

  • Multi-Task cGAN for Simultaneous Spaceborne DSM Refinement and Roof-Type Classification. Bittner, Ksenia; Körner, Marco; Fraundorfer, Friedrich; Reinartz, Peter // Remote Sensing;Jun2019, Vol. 11 Issue 11, p1262 

    Various deep learning applications benefit from multi-task learning with multiple regression and classification objectives by taking advantage of the similarities between individual tasks. This can result in improved learning efficiency and prediction accuracy for the task-specific models...

  • The integration of multi-source remote sensing data for the modelling of shoreline change rates in a mediterranean coastal sector. Aguilar, Fernando J.; Fernandez-Luque, Ismael; Aguilar, Manuel A.; García Lorca, Andrés M.; Viciana, Alfonso R. // International Journal of Remote Sensing;Feb2019, Vol. 40 Issue 3, p1148 

    A novel methodological approach is presented to estimate the shoreline change rate in complex coastal settings by using multisource/ multi-temporal shoreline data extracted from both orthoimages and digital elevation models. Several stages are covered to integrate the information available for...

  • Estimation of Mass Balance of the Grosser Aletschgletscher, Swiss Alps, from ICESat Laser Altimetry Data and Digital Elevation Models. Jan Kropáček; Neckel, Niklas; Bauder, Andreas // Remote Sensing;Jun2014, Vol. 6 Issue 6, p5614 

    Traditional glaciological mass balance measurements of mountain glaciers are a demanding and cost intensive task. In this study, we combine data from the Ice Cloud and Elevation Satellite (ICESat) acquired between 2003 and 2009 with air and space borne Digital Elevation Models (DEMs) in order to...

  • Accurate Determination of Glacier Surface Velocity Fields with a DEM-Assisted Pixel-Tracking Technique from SAR Imagery. Shiyong Yan; Guang Liu; Yunjia Wang; Zhixing Ruan // Remote Sensing;Aug2015, Vol. 7 Issue 8, p10898 

    We obtained accurate, detailed motion distribution of glaciers in Central Asia by applying digital elevation model (DEM) assisted pixel-tracking method to L-band synthetic aperture radar imagery. The paper firstly introduces and analyzes each component of the offset field briefly, and then...

  • Glacier change of the Columbia Icefield, Canadian Rocky Mountains, 1919-2009. TENNANT, Christina; MENOUNOS, Brian // Journal of Glaciology;2013, Vol. 59 Issue 216, p671 

    The article presents a study which aims to determine the length, area, volume change and elevation of the Columbia Icefield. The study uses Interprovincial Boundary Commission Survey (IBCS) maps, aerial photographs and satellite imagery. It says that the thinning rates of debris-covered ice were...

  • Four decades of glacier variations at Muztag Ata (Eastern Pamir): a multi-sensor study including Hexagon KH-9 and Pléiades data. Holzer, N.; Vijay, S.; Yao, T.; Xu, B.; Buchroithner, M.; Bolch, T. // Cryosphere Discussions;2015, Vol. 9 Issue 2, p1811 

    Recent mass balance measurements indicate a slight mass gain at Muztag Ata in the Eastern Pamir. We extend these measurements both in space and time by using remote sensing data and present four decades of glacier variations in the entire mountain massif. Geodetic mass-balances and area changes...

  • GPS-derived velocity and strain fields around Dome Argus, Antarctica. Yuande YANG; BO Sun; Zemin WANG; Minghu DING; Cheinway HWANG; Songtao AI; Lianzhong WANG; Yujun DU; Dongchen E // Journal of Glaciology;2014, Vol. 60 Issue 222, p735 

    Knowledge of the surface topography, velocity field and strain field at an ice-core site is critical to the accurate interpretation of ice-core records. At Dome Argus (Dome A), where a Chinese deep ice-core drilling project is being carried out, we have produced an accurate surface digital...

  • Elevation changes of Inylchek Glacier during 1974-2007, Central Tian Shan, Kyrgyzstan derived from remote sensing data. Shangguan, D.; Bolch, T.; Ding, Y.; Kröhnert, M.; Pieczonka, T.; Wetzel, H.-U.; Liu, S. // Cryosphere Discussions;2014, Vol. 8 Issue 3, p2573 

    Glacier melt is an important source of fresh water for the arid regions surrounding the Tian Shan. Inylchek Glacier (650 km²) is the largest glacier in Tian Shan consisting of two branches (northern Inylchek glacier and southern Inylchek glacier) separated by the regularly draining Lake...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics