Name
Title | ||
|---|---|---|
Fusion of Multi-Source Satellite Data and DEMs to Create a New Glacier Inventory for Novaya Zemlya. |
Abstract | ||
|---|---|---|
Monitoring glacier changes in remote Arctic regions are strongly facilitated by satellite data. This is especially true for the Russian Arctic where recently increased optical and SAR satellite imagery (Landsat 8 OLI, Sentinel 1/2) and digital elevation models (TanDEM-X, ArcticDEM) are becoming available. These datasets offer new possibilities to create high-quality glacier inventories. Here, we present a new glacier inventory derived from a fusion of multi-source satellite data for Novaya Zemlya in the Russian Arctic. We mainly used Landsat 8 OLI data to automatically map glaciers with the band ratio method. Missing debris-covered glacier parts and misclassified lakes were manually corrected. Whereas perennial snow fields were a major obstacle in glacier identification, seasonal snow was identified and removed using Landsat 5 TM scenes from the year 1998. Drainage basins were derived semi-automatically using the ArcticDEM (gap-filled by the ASTER GDEM V2) and manually corrected using fringes from ALOS PALSAR. The new glacier inventory gives a glacierized area of 22,379 +/- 246.2 km(2) with 1474 glacier entities >0.05 km(2). The region is dominated by large glaciers, as 909 glaciers <0.5 km(2) (62% by number) cover only 156 +/- 1.7 km(2) or 0.7% of the area, whereas 49 glaciers >100 km(2) (3.3% by number) cover 18,724 +/- 205.9 km(2) or 84%. In total, 41 glaciers are marine terminating covering an area of 16,063.7 +/- 118.8 km(2). The mean elevation is 596 m for all glaciers in the study region (528 m in the northern part, 641 in the southern part). South-east (north-west) facing glaciers cover >35% (20%) of the area. For the smaller glaciers in the southern part we calculated an area loss of 3.4% (-52.5 +/- 3.1 km(2)) from 2001 to 2016. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.3390/rs9111122 | REMOTE SENSING |
Keywords | Field | DocType |
glacier inventory,glacier mapping,Arctic,remote sensing,ArcticDEM,Landsat 8,fringes,Novaya Zemlya | Glacier,Snow field,Satellite imagery,Remote sensing,Glacier morphology,Digital elevation model,Glacier mass balance,Geology,Arctic,Snow | Journal |
Volume | Issue | ISSN |
9 | 11 | 2072-4292 |
Citations | PageRank | References |
2 | 0.51 | 2 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Rastner, P. | 1 | 9 | 2.25 |
| Tazio Strozzi | 2 | 143 | 31.48 |
| Frank Paul | 3 | 19 | 5.54 |