Google Earth Engine ——MCD43A1 V6双向反射分布函数和反照率（BRDF/Albedo）模型参数数据集是一个500米每日16天的产品2000年至今

The MCD43A1 V6 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Model Parameters dataset is a 500 meter daily 16-day product. The Julian date represents the 9th day of the 16-day retrieval period, and consequently the observations are weighted to estimate the BRDF/Albedo for that day. The MCD43A1 algorithm, as is with all combined products, chooses the best representative pixel from a pool that includes all the acquisitions from both the Terra and Aqua sensors from the retrieval period.

The MCD43A1 provides the three model weighting parameters (isotropic, volumetric, and geometric) for each of the MODIS bands 1 through 7 and the visible (vis), near infrared (nir), and shortwave bands used to derive the Albedo and BRDF products (MCD43A3 and MCD43A4). The Mandatory Quality layers for each of the 10 bands are supplied as well.

See dataset user guide for more information.

Documentation:

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

MCD43A1 V6双向反射分布函数和反照率（BRDF/Albedo）模型参数数据集是一个500米每日16天的产品。朱利安日期代表16天检索期的第9天，因此，观测数据被加权以估计该天的BRDF/Albedo。MCD43A1算法和所有的综合产品一样，从一个包括Terra和Aqua传感器在检索期间的所有采集数据的池子里选择最佳的代表像素。

MCD43A1为MODIS第1至第7波段以及用于推导反照率和BRDF产品（MCD43A3和MCD43A4）的可见光（vis）、近红外（nir）和短波波段提供三个模型加权参数（各向同性、容积率和几何）。同时还提供了10个波段中每个波段的强制性质量层。

更多信息见数据集用户指南。

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 - 2021-09-12T00:00:00

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Collection Snippet

ee.ImageCollection("MODIS/006/MCD43A1")

Resolution

500 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.

通过LP DAAC获得的MODIS数据和产品对后续使用、销售或再分配没有限制。

引用：

代码：

var dataset = ee.ImageCollection('MODIS/006/MCD43A1')
                  .filter(ee.Filter.date('2018-05-01', '2018-07-01'));
var defaultVisualization = dataset.select([
  'BRDF_Albedo_Parameters_Band1_iso', 'BRDF_Albedo_Parameters_Band4_iso',
  'BRDF_Albedo_Parameters_Band3_iso'
]);
var defaultVisualizationVis = {
  min: 0.0,
  max: 1400.0,
  gamma: 2.0,
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(
    defaultVisualization, defaultVisualizationVis, 'Default visualization');