The MYD11A2 V6 product provides an average 8-day land surface temperature (LST) in a 1200 x 1200 kilometer grid. Each pixel value in MYD11A2 is a simple average of all the corresponding MOD11A1 LST pixels collected within that 8 day period. The 8 day compositing period was chosen because twice that period is the exact ground track repeat period of the Aqua and Aqua platforms. In this product, along with both the day- and night-time surface temperature bands and their quality indicator (QC) layers, are also MODIS bands 31 and 32 and eight observation layers.
Documentation:
MYD11A2 V6产品提供了一个1200 x 1200公里网格内的8天平均陆地表面温度(LST)。MYD11A2中的每个像素值是该8天内收集的所有相应的MOD11A1 LST像素的简单平均值。选择8天的合成期是因为这段时间的两倍正是Aqua和Aqua平台的地面轨道重复期。在这个产品中,除了白天和夜间的地表温度带及其质量指标(QC)层之外,还有MODIS的31和32带以及8个观测层。
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/MYD11A2")
Resolution
1000 meters
Bands Table
Name | Description | Min | Max | Units | Scale | Offset |
LST_Day_1km | Day land surface temperature | 7500 | 65535 | Kelvin | 0.02 | 0 |
QC_Day | Daytime LST quality indicators | 0 | 0 | |||
QC_Day Bitmask |
|
|||||
Day_view_time | Local time of day observation | 0 | 240 | Hours | 0.1 | 0 |
Day_view_angl | View zenith angle of day observation | 0 | 130 | Degrees | 1 | -65 |
LST_Night_1km | Night land surface temperature | 7500 | 65635 | Kelvin | 0.02 | 0 |
QC_Night | Nighttime LST quality indicators | 0 | 0 | |||
QC_Night Bitmask |
|
|||||
Night_view_time | Local time of night observation | 0 | 240 | Hours | 0.1 | 0 |
Night_view_angl | View zenith angle of night observation | 0 | 130 | Degrees | 1 | -65 |
Emis_31 | Band 31 emissivity | 1 | 255 | 0.002 | 0.49 | |
Emis_32 | Band 32 emissivity | 1 | 255 | 0.002 | 0.49 | |
Clear_sky_days | Days in clear-sky conditions | 0 | 0 | |||
Clear_sky_days Bitmask |
|
|||||
Clear_sky_nights | Nights in clear-sky conditions | 0 | 0 | |||
Clear_sky_nights Bitmask |
|
使用说明:
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
引用:
代码:
var dataset = ee.ImageCollection('MODIS/006/MYD11A2') .filter(ee.Filter.date('2018-01-01', '2018-05-01')); var landSurfaceTemperature = dataset.select('LST_Day_1km'); var landSurfaceTemperatureVis = { min: 14000.0, max: 16000.0, palette: [ '040274', '040281', '0502a3', '0502b8', '0502ce', '0502e6', '0602ff', '235cb1', '307ef3', '269db1', '30c8e2', '32d3ef', '3be285', '3ff38f', '86e26f', '3ae237', 'b5e22e', 'd6e21f', 'fff705', 'ffd611', 'ffb613', 'ff8b13', 'ff6e08', 'ff500d', 'ff0000', 'de0101', 'c21301', 'a71001', '911003' ], }; Map.setCenter(6.746, 46.529, 2); Map.addLayer( landSurfaceTemperature, landSurfaceTemperatureVis, 'Land Surface Temperature');