globalchange  > 过去全球变化的重建
DOI: 10.3390/f10050363
WOS记录号: WOS:000478814700003
论文题名:
A Comparison of Burned Area Time Series in the Alaskan Boreal Forests from Different Remote Sensing Products
作者: Moreno-Ruiz, Jose A.1; Garcia-Lazaro, Jose R.1; Arbelo, Manuel2; Riano, David3,4
通讯作者: Arbelo, Manuel
刊名: FORESTS
ISSN: 1999-4907
出版年: 2019
卷: 10, 期:5
语种: 英语
英文关键词: burned area mapping ; time series analysis ; Alaska ; boreal forest ; BABD-MTBS ; Fire_CCI ; MCD64A1 ; LTDR
WOS关键词: SPATIAL-RESOLUTION ; FIRE EMISSIONS ; DATA RECORD ; MODIS ; AVHRR ; CLASSIFICATION ; ALGORITHM ; VEGETATION ; ACCURACY ; DYNAMICS
WOS学科分类: Forestry
WOS研究方向: Forestry
英文摘要:

Alaska's boreal region stores large amounts of carbon both in its woodlands and in the grounds that sustain them. Any alteration to the fire system that has naturally regulated the region's ecology for centuries poses a concern regarding global climate change. Satellite-based remote sensors are key to analyzing those spatial and temporal patterns of fire occurrence. This paper compiles four burned area (BA) time series based on remote sensing imagery for the Alaska region between 1982-2015: Burned Areas Boundaries Dataset-Monitoring Trends in Burn Severity (BABD-MTBS) derived from Landsat sensors, Fire Climate Change Initiative (Fire_CCI) (2001-2015) and Moderate-Resolution Imaging Spectroradiometer (MODIS) Direct Broadcast Monthly Burned Area Product (MCD64A1) (2000-2015) with MODIS data, and Burned Area-Long-Term Data Record (BA-LTDR) using Advanced Very High Resolution Radiometer LTDR (AVHRR-LTDR) dataset. All products were analyzed and compared against one another, and their accuracy was assessed through reference data obtained by the Alaskan Fire Service (AFS). The BABD-MTBS product, with the highest spatial resolution (30 m), shows the best overall estimation of BA (81%), however, for the years before 2000 (pre-MODIS era), the BA sensed by this product was only 44.3%, against the 55.5% obtained by the BA-LTDR product with a lower spatial resolution (5 km). In contrast, for the MODIS era (after 2000), BABD-MTBS virtually matches the reference data (98.5%), while the other three time series showed similar results of around 60%. Based on the theoretical limits of their corresponding Pareto boundaries, the lower resolution BA products could be improved, although those based on MODIS data are currently limited by the algorithm's reliance on the active fire MODIS product, with a 1 km nominal spatial resolution. The large inter-annual variation found in the commission and omission errors in this study suggests that for a fair assessment of the accuracy of any BA product, all available reference data for space and time should be considered and should not be carried out by selective sampling.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/137034
Appears in Collections:过去全球变化的重建

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作者单位: 1.Univ Almeria, Dept Informat, Almeria 04120, Spain
2.Univ La Laguna, Dept Fis, San Cristobal La Laguna 38200, Spain
3.CSIC, CCHS, IEGD, Albasanz 26-28, Madrid 28037, Spain
4.Univ Calif Davis, CSTARS, 139 Veihmeyer Hall,One Shields Ave, Davis, CA 95616 USA

Recommended Citation:
Moreno-Ruiz, Jose A.,Garcia-Lazaro, Jose R.,Arbelo, Manuel,et al. A Comparison of Burned Area Time Series in the Alaskan Boreal Forests from Different Remote Sensing Products[J]. FORESTS,2019-01-01,10(5)
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