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Ten years of global burned area products from spaceborne remote sensing—A review: Analysis of user needs and recommendations for future developments

机译：十年的星载遥感全球燃烧区产品回顾：用户需求分析和未来发展建议

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Early global estimates of carbon emissions from biomass burning were based on empirical assumptions of fire return interval in different biomes in the 1980s. Since then, significant improvements of spaceborne remote sensing sensors have resulted in an increasing number of derived products characterizing the detection of active fire or the subsequent burned area (GFED, MODIS MCD45A1, L3JRC, Globcarbon, GBS, GLOBSCAR, GBA2000). When coupled with global land cover and vegetation models allowing for spatially explicit fuel biomass estimates, the use of these products helps to yield important information about the spatial and the temporal variability of emission estimates. The availability of multi-year products (>10 years) leads to a better understanding of uncertainties in addition to increasing accuracy. We surveyed a wide range of users of global fire data products whilst also undertaking a review of the latest scientific literature. Two user groups were identified, the first being global climate and vegetation modellers and the second being regional land managers. Based on this review, we present here the current needs covering the range of end-users. We identified the increasing use of BA products since the year 2000 with an increasing use of MODIS as a reference dataset. Scientific topics using these BA products have increased in diversity and area of application, from global fire emissions (for which BA products were initially developed) to regional studies with increasing use for ecosystem management planning. There is a significant need from the atmospheric science community for low spatial resolution (gridded, 1/2 degree cell) and long time series data characterized with supplementary information concerning the accuracy in timing of the fire and reductions of omission/commission errors. There is also a strong need for precisely characterizing the perimeter and contour of the fire scar for better assimilation with land cover maps and fire intensity. Computer and earth observation facilities remain a significant gap between ideal accuracies and the realistic ones, which must be fully quantified and comprehensive for an actual use in global fire emissions or regional land management studies.
机译：全球对生物质燃烧产生的碳排放的早期估计是基于1980年代不同生物群落的回火间隔的经验假设。从那时起，星载遥感传感器的显着改进导致派生产品数量的增加，这些派生产品具有探测主动火或随后燃烧区域的特征（GFED，MODIS MCD45A1，L3JRC，Globbcarbon，GBS，GLOBSCAR，GBA2000）。当结合全球土地覆盖和植被模型以进行空间明确的燃料生物量估算时，这些产品的使用有助于获得有关排放估算的时空变化的重要信息。多年产品（> 10年）的可用性除了提高准确性外，还可以更好地理解不确定性。我们对全球消防数据产品的广泛用户进行了调查，同时还对最新的科学文献进行了回顾。确定了两个用户组，第一个是全球气候和植被建模者，第二个是区域土地经理。基于此审查，我们在此介绍当前的需求，这些需求涵盖了最终用户的范围。我们发现自2000年以来，BA产品的使用在增加，而MODIS作为参考数据集的使用也在增加。使用这些BA产品的科学主题在多样性和应用领域方面都有所增加，从全球火灾排放（BA产品最初是针对其开发的）到区域研究越来越多地用于生态系统管理规划。大气科学界非常需要低空间分辨率（栅格化的1/2度像元）和长时序列数据，这些数据的特征是有关着火时间的准确性和减少遗漏/排放误差的补充信息。强烈需要精确地描述火疤的周长和轮廓，以更好地与土地覆盖图和火势同化。计算机和地球观测设施在理想精度和实际精度之间仍然存在很大差距，对于全球火灾排放或区域土地管理研究中的实际使用，必须对其进行充分量化和综合。

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