Google Earth Engine ——MCD43A3 V6反照率模型数据集是一个每天16天的产品。它提供了MODIS表面反射波段（波段1到波段7）以及3个宽光谱波段（可见光、近红外和短波）

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发布于 2024-02-02 10:34:02

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发布于 2024-02-02 10:34:02

The MCD43A3 V6 Albedo Model dataset is a daily 16-day product. It provides both directional hemispherical reflectance (black sky albedo) and bihemispherical reflectance (white sky albedo) for each of the MODIS surface reflectance bands (band 1 through band 7) as well as 3 broad spectrum bands (visible, near infrared, and shortwave). Each 500m/pixel daily image is generated using 16 days of data, centered on the given day. A quality band is also provided for each of the 10 albedo bands.

Documentation:

MCD43A3 V6反照率模型数据集是一个每天16天的产品。它提供了MODIS表面反射波段（波段1到波段7）以及3个宽光谱波段（可见光、近红外和短波）的定向半球反射率（黑天反照率）和双半球反射率（白天反照率）。每张500米/像素的日图像是用16天的数据生成的，以给定日期为中心。还为10个反照率波段中的每一个提供了一个质量波段。

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/MCD43A3")

Resolution

500 meters

Bands Table

Name	Description	Min	Max	Wavelength	Scale
Albedo_BSA_Band1	Black-sky albedo for band 1	0	32766	620-670nm	0.001
Albedo_BSA_Band2	Black-sky albedo for band 2	0	32766	841-876nm	0.001
Albedo_BSA_Band3	Black-sky albedo for band 3	0	32766	459-479nm	0.001
Albedo_BSA_Band4	Black-sky albedo for band 4	0	32766	545-565nm	0.001
Albedo_BSA_Band5	Black-sky albedo for band 5	0	32766	1230-1250nm	0.001
Albedo_BSA_Band6	Black-sky albedo for band 6	0	32766	1628-1652nm	0.001
Albedo_BSA_Band7	Black-sky albedo for band 7	0	32766	2105-2155nm	0.001
Albedo_BSA_vis	Black-sky albedo for visible brodband	0	32766		0.001
Albedo_BSA_nir	Black-sky albedo for NIR broadband	0	32766	858nm	0.001
Albedo_BSA_shortwave	Black-sky albedo for shortwave broadband	0	32766		0.001
Albedo_WSA_Band1	White-sky albedo for band 1	0	32766	620-670nm	0.001
Albedo_WSA_Band2	White-sky albedo for band 2	0	32766	841-876nm	0.001
Albedo_WSA_Band3	White-sky albedo for band 3	0	32766	459-479nm	0.001
Albedo_WSA_Band4	White-sky albedo for band 4	0	32766	545-565nm	0.001
Albedo_WSA_Band5	White-sky albedo for band 5	0	32766	1230-1250nm	0.001
Albedo_WSA_Band6	White-sky albedo for band 6	0	32766	1628-1652nm	0.001
Albedo_WSA_Band7	White-sky albedo for band 7	0	32766	2105-2155nm	0.001
Albedo_WSA_vis	White-sky albedo for visible broadband	0	32766		0.001
Albedo_WSA_nir	White-sky albedo for NIR broadband	0	32766	858nm	0.001
Albedo_WSA_shortwave	White-sky albedo for shortwave broadband	0	32766		0.001
BRDF_Albedo_Band_Mandatory_Quality_Band1	BRDF albedo mandatory quality for band 1				0
BRDF_Albedo_Band_Mandatory_Quality_Band1 Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_Band2	BRDF albedo mandatory quality for band 2				0
BRDF_Albedo_Band_Mandatory_Quality_Band2 Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_Band3	BRDF albedo mandatory quality for band 3				0
BRDF_Albedo_Band_Mandatory_Quality_Band3 Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_Band4	BRDF albedo mandatory quality for band 4				0
BRDF_Albedo_Band_Mandatory_Quality_Band4 Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_Band5	BRDF albedo mandatory quality for band 5				0
BRDF_Albedo_Band_Mandatory_Quality_Band5 Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_Band6	BRDF albedo mandatory quality for band 6				0
BRDF_Albedo_Band_Mandatory_Quality_Band6 Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_Band7	BRDF albedo mandatory quality for band 7				0
BRDF_Albedo_Band_Mandatory_Quality_Band7 Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_vis	BRDF albedo mandatory quality for visible broadband				0
BRDF_Albedo_Band_Mandatory_Quality_vis Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_nir	BRDF albedo mandatory quality for NIR broadband				0
BRDF_Albedo_Band_Mandatory_Quality_nir Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)
BRDF_Albedo_Band_Mandatory_Quality_shortwave	BRDF albedo mandatory quality for shortwave broadband				0
BRDF_Albedo_Band_Mandatory_Quality_shortwave Bitmask	Bit 0: Mandatory QA bit index 0: Processed, good quality (full BRDF inversions)1: Processed, see other QA (magnitude BRDF inversions)

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_Band2BRDF albedo mandatory quality for band 20BRDF_Albedo_Band_Mandatory_Quality_Band2 Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_Band3BRDF albedo mandatory quality for band 30BRDF_Albedo_Band_Mandatory_Quality_Band3 Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_Band4BRDF albedo mandatory quality for band 40BRDF_Albedo_Band_Mandatory_Quality_Band4 Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_Band5BRDF albedo mandatory quality for band 50BRDF_Albedo_Band_Mandatory_Quality_Band5 Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_Band6BRDF albedo mandatory quality for band 60BRDF_Albedo_Band_Mandatory_Quality_Band6 Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_Band7BRDF albedo mandatory quality for band 70BRDF_Albedo_Band_Mandatory_Quality_Band7 Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_visBRDF albedo mandatory quality for visible broadband0BRDF_Albedo_Band_Mandatory_Quality_vis Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_nirBRDF albedo mandatory quality for NIR broadband0BRDF_Albedo_Band_Mandatory_Quality_nir Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

BRDF_Albedo_Band_Mandatory_Quality_shortwaveBRDF albedo mandatory quality for shortwave broadband0BRDF_Albedo_Band_Mandatory_Quality_shortwave Bitmask

Bit 0: Mandatory QA bit index
- 0: Processed, good quality (full BRDF inversions)
- 1: Processed, see other QA (magnitude BRDF inversions)

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：

LP DAAC - MCD12Q1LP DAAC - Land Processes Distributed Active Archive Center - Sioux Falls, SD

https://doi.org/10.5067/MODIS/MCD12Q1.006

代码：

var dataset = ee.ImageCollection('MODIS/006/MCD43A3')
                  .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
var blackSkyAlbedo = dataset.select('Albedo_BSA_Band1');
var blackSkyAlbedoVis = {
  min: 0.0,
  max: 400.0,
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(blackSkyAlbedo, blackSkyAlbedoVis, 'Black-Sky Albedo');