The MOD14A1 V6 dataset provides daily fire mask composites at 1km resolution derived from the 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). The product distinguishes between fire, no fire and no observation. This information is used for monitoring the spatial and temporal distribution of fires in different ecosystems, detecting changes in fire distribution and identifying new fire frontiers, wild fires, and changes in the frequency of the fires or their relative strength.
Documentation:
MOD14A1 V6数据集提供了从MODIS 4米和11米辐射值得出的1公里分辨率的每日火灾掩码组合。火灾探测策略是基于对火灾的绝对探测(当火灾强度足以探测时),以及相对于其背景的探测(考虑到表面温度的变化和太阳光的反射)。该产品区分了火灾、无火灾和无观测。这些信息用于监测不同生态系统中火灾的空间和时间分布,检测火灾分布的变化,识别新的火灾前沿、野火,以及火灾频率或其相对强度的变化。
文件。
用户指南
算法理论基础文件(ATBD)
一般文件
Dataset Availability
2000-02-18T00:00:00 - 2021-09-21T00:00:00
Dataset Provider
NASA LP DAAC at the USGS EROS Center
Collection Snippet
ee.ImageCollection("MODIS/006/MOD14A1")
Resolution
1000 meters
Bands Table
Name | Description | Min | Max | Units | Scale |
FireMask | Confidence of fire | 0 | |||
FireMask Bitmask |
|
||||
MaxFRP | Maximum fire radiative power | 0 | 180000 | Megawatts | 0.1 |
sample | Position of fire pixel within scan | 0 | 1353 | 0 | |
QA | Pixel quality indicators | 0 | |||
QA Bitmask |
|
使用说明:
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
数据引用:
代码:
var dataset = ee.ImageCollection('MODIS/006/MOD14A1') .filter(ee.Filter.date('2018-01-01', '2018-05-01')); var fireMaskVis = { min: 0.0, max: 6000.0, bands: ['MaxFRP', 'FireMask', 'FireMask'], }; Map.setCenter(6.746, 46.529, 2); Map.addLayer(dataset, fireMaskVis, 'Fire Mask');