Published November 14, 2017 | Version v1
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Velocidades superficiales del glaciar Upsala, Andes Patagónicos Sur, mediante el uso de correlación cruzada en imágenes satelitales: periodo 2013-2014.

Creators

  • 1. Consejo Nacional de Investigaciones Científicas y Técnicas

Description

In this study we present surface velocities estimation for the Upsala glacier catchment, South Patagonian Ice Field (SPI) during the summer season of years 2013 (January-March) and 2014 (March-April), including the Bertacchi, Cono, and Murallón tributaries using satellite images from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). The Cross-Correlation method was applied by COSI-Corr technique with sub-pixel accuracy. In general, it should be noted that the SPI glaciers, and Upsala glacier in particular, are fast-flowing ice bodies, which makes the technique works properly. Results of surface velocities estimation ranged from 0.22 to 2.93 md-1 for January-March 2013 and 0.12 to 5.8 md-1 for March-April 2014. In summary, COSI-Corr can achieved accurate and reliable results for glacier displacements and surface velocities estimation, also contributing in the better knowledge of the velocities change processes in time, taking into account Upsala is one of the most dynamic temperate glaciers of the SPI.

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Translated Description (Arabic)

في هذه الدراسة، نقدم تقدير السرعات السطحية لمستجمعات الأنهار الجليدية في أبسالا، وحقل الجليد في جنوب باتاغونيا (SPI) خلال موسم الصيف من عامي 2013 (يناير- مارس) و 2014 (مارس- أبريل)، بما في ذلك روافد بيرتاتشي وكونو ومورالون باستخدام صور الأقمار الصناعية من مقياس الإشعاع المتقدم للانبعاثات والانعكاس الحراري المحمول في الفضاء (ASTER). تم تطبيق طريقة الارتباط المتبادل بواسطة تقنية COSI - Corr بدقة البكسل الفرعي. بشكل عام، تجدر الإشارة إلى أن الأنهار الجليدية SPI، والأنهار الجليدية Upsala على وجه الخصوص، هي أجسام جليدية سريعة التدفق، مما يجعل هذه التقنية تعمل بشكل صحيح. تراوحت نتائج تقدير السرعات السطحية من 0.22 إلى 2.93 مللي دارسي-1 للفترة من يناير إلى مارس 2013 و 0.12 إلى 5.8 مللي دارسي-1 للفترة من مارس إلى أبريل 2014. باختصار، يمكن لـ COSI - Corr تحقيق نتائج دقيقة وموثوقة لإزاحة الأنهار الجليدية وتقدير السرعات السطحية، مما يساهم أيضًا في معرفة أفضل بعمليات تغيير السرعات في الوقت المناسب، مع الأخذ في الاعتبار أن أبسالا هي واحدة من أكثر الأنهار الجليدية المعتدلة ديناميكية في SPI.

Translated Description (English)

In this study we present surface velocities estimation for the Upsala glacier catchment, South Patagonian Ice Field (SPI) during the summer season of years 2013 (January-March) and 2014 (March-April), including the Bertacchi, Cono, and Murallón tributaries using satellite images from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). The Cross-Correlation method was applied by COSI-Corr technique with sub-pixel accuracy. In general, it should be noted that the SPI glaciers, and Upsala glacier in particular, are fast-flowing ice bodies, which makes the technique works properly. Results of surface velocities estimation ranged from 0.22 to 2.93 md-1 for January-March 2013 and 0.12 to 5.8 md-1 for March-April 2014. In summary, COSI-Corr can achieve accurate and reliable results for glacier displacements and surface velocities estimation, also contributing in the better knowledge of the velocities change processes in time, taking into account Upsala is one of the most dynamic temperate glaciers of the SPI.

Translated Description (French)

In this study we present surface velocities estimation for the Upsala glacier catchment, South Patagonian Ice Field (SPI) during the summer season of years 2013 (January-March) and 2014 (March-April), including the Bertacchi, Cône, and Murallón tributaries using satellite images from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). The Cross-Correlation method was applied by COSI-Corr technique with sub-pixel accuracy. En général, it should be noted that the SPI glaciers, and Upsala glacier in particular, are fast-flowing ice bodies, which makes the technique works properly. Results of surface velocities estimation ranged from 0.22 to 2.93 md-1 for January-March 2013 and 0.12 to 5.8 md-1 for March-April 2014. En résumé, COSI-Corr can achieved exactes and reliable results for glacier displacements and surface velocities estimation, also contributing in the better knowledge of the velocities change processes in time, taking into account Upsala is one of the most dynamic temperate glaciers of the SPI.

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Additional details

Additional titles

Translated title (Arabic)
السرعات السطحية لنهر أوبسالا الجليدي، جبال الأنديز الباتاغونية الجنوبية، من خلال استخدام الترابط المتبادل في صور الأقمار الصناعية: الفترة 2013-2014.
Translated title (English)
Surface velocities of the Upsala Glacier, Southern Patagonian Andes, through the use of cross-correlation in satellite images: period 2013-2014.
Translated title (French)
Vitesse de surface du glacier Upsala, Andes Patagoniques Sud, en utilisant la corrélation croisée dans les images satellite : période 2013-2014.

Identifiers

Other
https://openalex.org/W2769572921
DOI
10.5027/andgeov45n1-3034

Is supplement to
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https://openalex.org/W2953683148 (Other)
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https://openalex.org/W2353119293 (Other)
https://openalex.org/W2321803822 (Other)
https://openalex.org/W2182089699 (Other)
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https://openalex.org/W1972869306 (Other)

GreSIS Basics Section

Is Global South Knowledge
Yes
Country
Argentina