Establishing water body areal extent trends in interior Alaska from multi-temporal Landsat data
Remote Sensing Letters
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Abstract
An accurate approach is needed for monitoring, quantifying and understanding surface water variability due to climate change. Separating inter- and intra-annual variances from longer-term shifts in surface water extents due to contemporary climate warming requires repeat measurements spanning a several-decade period. Here, we show that trends developed from multi-date measurements of the extents of more than 15,000 water bodies in central Alaska using Landsat Multispectral Scanner (MSS), Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) data (1979–2009) were highly influenced by the quantity and timing of the data. Over the 30-year period from 1979 to 2009, the study area had a net decrease (p < 0.05) in the extents of 3.4% of water bodies whereas 86% of water bodies exhibited no significant change. The Landsat-derived dataset provides an opportunity for additional research assessing the drivers of lake and wetland change in this region.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Establishing water body areal extent trends in interior Alaska from multi-temporal Landsat data |
| Series title | Remote Sensing Letters |
| DOI | 10.1080/01431161.2011.643507 |
| Volume | 3 |
| Issue | 7 |
| Year Published | 2012 |
| Language | English |
| Publisher | Taylor & Francis |
| Publisher location | Philadelphia, PA |
| Contributing office(s) | Earth Resources Observation and Science (EROS) Center |
| Description | 10 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Remote Sensing Letters |
| First page | 595 |
| Last page | 604 |
| Country | United States |
| State | Alaska |
| Google Analytic Metrics | Metrics page |