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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)


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:

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

 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, SDhttps://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');

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)_sql

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