The Inylchek Glacier in Kyrgyzstan, Central Asia: Insight on Surface Kinematics from Optical Remote Sensing Imagery

Abstract: Mountain chains of Central Asia host a large number of glaciated areas that provide critical water supplies to the semi-arid populated foothills and lowlands of this region. Spatio-temporal variations of glacier flows are a key indicator of the impact of climate change on water resources as the glaciers react sensitively to climate. Satellite remote sensing using optical imagery is an efficient method for studying ice-velocity fields on mountain glaciers. In this study, temporal and spatial changes in surface velocity associated with the Inylchek glacier in Kyrgyzstan are investigated. We present a detailed map for the kinematics of the Inylchek glacier obtained by cross-correlation analysis of Landsat images, acquired between 2000 and 2011, and a set of ASTER images covering the time period between 2001 and 2007. Our results indicate a high-velocity region in the elevated part of the glacier, moving up to a rate of about 0.5 m/day. Time series analysis of optical data reveals some annual variations in the mean surface velocity of the Inylchek during 2000–2011. In particular, our findings suggest an opposite trend between periods of the northward glacial flow in Proletarskyi and Zvezdochka glacier, and the rate of westward motion observed for the main stream of the Inylchek.

[1]  Bruce Raup,et al.  New velocity map and mass-balance estimate of Mertz Glacier, East Antarctica, derived from Landsat sequential imagery , 2003, Journal of Glaciology.

[2]  R. Hardy,et al.  An analysis of balance velocities over the Greenland ice sheet and comparison with synthetic aperture radar interferometry , 2000, Journal of Glaciology.

[3]  Andreas Kääb,et al.  Spatial variability of recent glacier area changes in the Tien Shan Mountains, Central Asia, using Corona (~ 1970), Landsat (~ 2000), and ALOS (~ 2007) satellite data , 2010 .

[4]  E. Rodríguez,et al.  A Global Assessment of the SRTM Performance , 2006 .

[5]  Andreas Kääb,et al.  Repeat optical satellite images reveal widespread and long term decrease in land-terminating glacier speeds , 2012 .

[6]  Hassan Foroosh,et al.  Extension of phase correlation to subpixel registration , 2002, IEEE Trans. Image Process..

[7]  Andreas Kääb,et al.  The 24 July 2008 outburst flood at the western Zyndan glacier lake and recent regional changes in glacier lakes of the Teskey Ala-Too range, Tien Shan, Kyrgyzstan , 2010 .

[8]  W. Tad Pfeffer,et al.  Recent contributions of glaciers and ice caps to sea level rise , 2012, Nature.

[9]  Martin Beniston,et al.  Climate change impacts on glaciers and runoff in Tien Shan (Central Asia) , 2012 .

[10]  Karsten Jacobsen,et al.  ACCURACY ANALYSIS OF SRTM HEIGHT MODELS , 2007 .

[11]  Tobias Bolch,et al.  Climate change and glacier retreat in northern Tien Shan (Kazakhstan/Kyrgyzstan) using remote sensing data , 2007 .

[12]  Achim Helm,et al.  Sub‐debris melt rates on southern inylchek glacier, central tian shan , 2008 .

[13]  Jeffrey S. Kargel,et al.  Multispectral imaging contributions to global land ice measurements from space , 2005 .

[14]  Achim Helm,et al.  Post‐drainage ice dam response at lake merzbacher, inylchek glacier, kyrgyzstan , 2008 .

[15]  J. Avouac,et al.  Monitoring Earth Surface Dynamics With Optical Imagery , 2007 .

[16]  M. R. van den Broeke,et al.  A Reconciled Estimate of Glacier Contributions to Sea Level Rise: 2003 to 2009 , 2013, Science.

[17]  A. Kääb,et al.  Natural Hazards and Earth System Sciences The 24 July 2008 outburst flood at the western Zyndan glacier lake and recent regional changes in glacier lakes of the Teskey Ala-Too range , 2010 .

[18]  Robert Bindschadler,et al.  Monitoring ice sheet behavior from space , 1998 .

[19]  Sébastien Leprince,et al.  Automatic and Precise Orthorectification, Coregistration, and Subpixel Correlation of Satellite Images, Application to Ground Deformation Measurements , 2007, IEEE Transactions on Geoscience and Remote Sensing.

[20]  Vladimir B. Aizen,et al.  Glaciers and hydrological changes in the Tien Shan: simulation and prediction , 2007 .

[21]  Sébastien Leprince,et al.  Mountain glacier velocity variation during a retreat/advance cycle quantified using sub-pixel analysis of ASTER images , 2011, Journal of Glaciology.

[22]  Esra Erten,et al.  Glacier Velocity Monitoring by Maximum Likelihood Texture Tracking , 2009, IEEE Transactions on Geoscience and Remote Sensing.

[23]  Yuichi Shimamura,et al.  Recent changes of glacier coverage in the western Terskey-Alatoo range, Kyrgyz Republic, using Corona and Landsat , 2006, Annals of Glaciology.

[24]  Esra Erten,et al.  Glacier Velocity Estimation by Means of a Polarimetric Similarity Measure , 2013, IEEE Transactions on Geoscience and Remote Sensing.

[25]  Maria Shahgedanova,et al.  Glacier retreat and climatic variability in the eastern Terskey–Alatoo, inner Tien Shan between the middle of the 19th century and beginning of the 21st century , 2009 .

[26]  S. Leprince,et al.  Glacier-surface velocities in alpine terrain from optical satellite imagery—Accuracy improvement and quality assessment , 2008 .

[27]  Liu Shiyin,et al.  Heterogeneous mass loss of glaciers in the Aksu-Tarim Catchment (Central Tien Shan) revealed by 1976 KH-9 Hexagon and 2009 SPOT-5 stereo imagery , 2013 .

[28]  Robert E. Wolfe,et al.  Automated registration and orthorectification package for Landsat and Landsat-like data processing , 2009 .

[29]  J. Avouac,et al.  Measuring earthquakes from optical satellite images. , 2000, Applied optics.

[30]  Gerald Forkuor,et al.  Comparison of SRTM and ASTER Derived Digital Elevation Models over Two Regions in Ghana - Implications for Hydrological and Environmental Modeling , 2012 .

[31]  Arzhan B. Surazakov,et al.  Glacier changes in the central and northern Tien Shan during the last 140 years based on surface and remote-sensing data , 2006, Annals of Glaciology.

[32]  K. Nikolakopoulos,et al.  SRTM vs ASTER elevation products. Comparison for two regions in Crete, Greece , 2006 .

[33]  Michael Kuhn,et al.  Simulating annual glacier flow with a linear reservoir model , 2003 .

[34]  J. Garlick,et al.  Near-global validation of the SRTM DEM using satellite radar altimetry , 2007 .