دورية أكاديمية
Diverse supraglacial drainage patterns on the Devon ice Cap, Arctic Canada
| العنوان: | Diverse supraglacial drainage patterns on the Devon ice Cap, Arctic Canada |
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| المؤلفون: | Lu, Y., Yang, K., Lu, X., Smithd, L., Sole, A., Livingstone, S., Fettweis, Xavier, Lia, M. |
| المصدر: | Journal of Maps, 16, 834-846 (2020-11-09) |
| بيانات النشر: | Taylor and Francis, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physical, chemical, mathematical & earth Sciences, Earth sciences & physical geography, Physique, chimie, mathématiques & sciences de la terre, Sciences de la terre & géographie physique |
| الوصف: | The Devon Ice Cap (DIC) is one of the largest ice masses in the Canadian Arctic. Each summer,extensive supraglacial river networks develop on the DIC surface and route large volumes ofmeltwater from ice caps to the ocean. Mapping their extent and understanding theirtemporal evolution are important for validating runoff routing and melt volumes predictedby regional climate models (RCMs). We use 10 m Sentinel-2 images captured on 28 July and10/11 August 2016 to map supraglacial rivers across the entire DIC (12,100 km2). Bothdendritic and parallel supraglacial drainage patterns are found, with a total length of44,941 km and a mean drainage density (Dd) of 3.71 km−1. As the melt season progresses,Dd increases and supraglacial rivers form at progressively higher elevations. There is apositive correlation between RCM-derived surface runoff and satellite-mapped Dd,suggesting that supraglacial drainage density is primarily controlled by surface runoff. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501Test article |
| اللغة: | English |
| العلاقة: | https://doi.org/10.1080/17445647.2020.1838353Test; urn:issn:1744-5647 |
| DOI: | 10.1080/17445647.2020.1838353 |
| الوصول الحر: | https://orbi.uliege.be/handle/2268/252557Test |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2Test info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsorb.252557 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1080/17445647.2020.1838353 |
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