MODIS/Terra Thermal Anomalies/Fire 5-Min L2 Swath 1km NRT

The MODIS/Terra Thermal Anomalies/Fire 5-Min L2 Swath 1km Near Real Time (NRT), short name MOD14, product is primarily derived from MODIS 4- and 11-micrometer radiances. The fire detection strategy is based on absolute detection of a fire (when the fire strength is sufficient to detect), and on detection relative to its background (to account for variability of the surface temperature and reflection by sunlight). Numerous tests are employed to reject typical false alarm sources like sun glint or an unmasked coastline.MOD14 is level-2 swath data provided daily at 1-kilometer resolution. The Science Data Sets in this product include fire-mask, algorithm quality, radiative power, and numerous layers describing fire pixel attributes. The Terra MODIS instrument acquires data twice daily (10:30 AM and PM), as does the Aqua MODIS (1:30 PM and AM). These four daily MODIS fire observations serve to advance global monitoring of the fire process and its effects on ecosystems, the atmosphere, and climate.

MODIS/Terra热异常/火灾5分钟L2扫描带1公里近实时（NRT）数据集，简称MOD14，主要源自MODIS 4微米和11微米波段的辐射亮度。火灾检测策略基于对火灾的绝对检测（当火灾强度足以被检测时），以及相对于背景的检测（以考虑地表温度和阳光反射的变异性）。通过众多测试，该数据集拒绝典型的误报来源，如太阳反光或未掩盖的海岸线。MOD14提供每日1公里分辨率的L2扫描带数据。该产品中的科学数据集包括火灾掩码、算法质量、辐射功率以及描述火灾像素属性的多个层级。Terra MODIS仪器每日两次（上午10:30和下午）采集数据，Aqua MODIS也是如此（下午1:30和上午）。这四个每日的MODIS火灾观测数据有助于推进对火灾过程及其对生态系统、大气和气候影响的全球监测。