Google Earth Engine ——MYD14A1/A2 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合成，火灾识别数据集

The MYD14A1 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:

• ​​User's Guide​​
• ​​Algorithm Theoretical Basis Document (ATBD)​​
• ​​General Documentation​​

MYD14A1 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合成。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。

Dataset Availability

2002-07-04T00:00:00 - 2021-09-21T00:00:00

Dataset Provider

​​NASA LP DAAC at the USGS EROS Center​​

Collection Snippet

​​ee.ImageCollection("MODIS/006/MYD14A1")​​

Resolution

1000 meters

Bands Table

使用说明：

MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

引用：

​​LP DAAC - MYD14A1​​

代码：

var dataset = ee.ImageCollection('MODIS/006/MYD14A1')
                  .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');

The MYD14A2 V6 dataset provides 8-day fire mask composites at 1km resolution. It contains the maximum value of the individual pixel classes over the compositing period. Along with the fire mask, an associated quality information layer is also provided.

Documentation:

• ​​User's Guide​​
• ​​Algorithm Theoretical Basis Document (ATBD)​​
• ​​General Documentation​​

MYD14A2 V6数据集提供了1公里分辨率的8天火灾掩码合成。它包含了在合成期间各个像素等级的最大值。与火灾掩码一起，还提供了一个相关的质量信息层。

Dataset Availability

2002-07-04T00:00:00 - 2021-09-14T00:00:00

Dataset Provider

​​NASA LP DAAC at the USGS EROS Center​​

Collection Snippet

​​ee.ImageCollection("MODIS/006/MYD14A2")​​

 A2代码：

var dataset = ee.ImageCollection('MODIS/006/MYD14A2')
                  .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
var fireMask = dataset.select('FireMask');
var fireMaskVis = {
  min: 3.0,
  max: 8.0,
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(fireMask, fireMaskVis, 'Fire Mask');