The daily albedo product coupling topographic effects over the Tibet Plateau (2002-2020)

The daily albedo product coupling topographic effects over the Tibet Plateau (2002-2020)


This data set is daily surface albedo product over Tibet plateau region from 2002 to 2020 with a spatial resolution of 0.00425°. The MODIS reflectance data product was used to retrieve the Extended Multi-Sensor Combined BRDF Inversion (EMCBI) Model which has coupled with topographic effects with assistance of a BRDF priori-knowledge. The daily BRDF was retrieved in a 5-day period to collect multi-angular information from MODIS observations. And then the daily albedo is estimated, where the black sky albedo was calculated at local noon. MODIS surface reflectance data (MOD09GA and MYD09GA) are downloaded from the official website. The albedo product is quality-controlled with better temporal and spatial continuity in Tibet plateau area. The validation results show that it meets the accuracy requirements of albedo application with higher precisions comparing to the other similar products. And thus, this product is useful for the long-term environmental monitoring and radiation energy budget research study.


File naming and required software

File naming convention: MOD0AL.AYYYYDDD.DBATP.tif (yyyy: year, DDD: Day (Julian day)), such as MOD0AL.A2016001.DBATP.tif, indicates the albedo of the Tibetan Plateau on the first day of 2016
Data reading mode: stored in tif format, which can be opened by envi, ArcGIS and other software
Data version number: v1
Projection + proj = longlat + datum = WGS84
Data format: raw, 7464 rows × 3312 columns
Fill value: 32767
Scale: / 10000 (divided by 10000, is the albedo)
Band Description: band 1-2 is the black sky albedo of visible and shortwave bands at local noon; band 3-4 is the white sky albedo of visible and shortwave bands


Data Citations Data citation guideline What's data citation?
Cite as:

You, D., Tang, Y., Han, Y. (2022). The daily albedo product coupling topographic effects over the Tibet Plateau (2002-2020). A Big Earth Data Platform for Three Poles, DOI: 10.11888/Terre.tpdc.272047. CSTR: 18406.11.Terre.tpdc.272047. (Download the reference: RIS | Bibtex )

Related Literatures:

1. Wen, J., You, D., Han, Y., Lin, X., Wu, S., Tang, Y., Xiao, Q., & Liu, Q. (2022). Estimating Surface BRDF/Albedo Over Rugged Terrain Using an Extended Multisensor Combined BRDF Inversion (EMCBI) Mode. IEEE Geosci. Remote Sens. Lett., 19, 1-5.( View Details | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.


Support Program

2nd survey of Tibet plateau (No:2019QZKK0206)

Algorithm development of Tibetan BRDF/Albedo from multi-sensory data coupling topographic effects in cases of snow or snow-free repectitively (No:41971316)

Copyright & License

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License: This work is licensed under an Attribution 4.0 International (CC BY 4.0)


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Keywords
Geographic coverage
East: 105.00 West: 73.00
South: 25.00 North: 40.00
Details
  • Temporal resolution: Daily
  • Spatial resolution: 100m - 1km
  • File size: 200 MB
  • Views: 2229
  • Downloads: 387
  • Access: Open Access
  • Temporal coverage: 2002-01-01 To 2020-12-31
  • Updated time: 2022-04-19
Contacts
: YOU Dongqin   TANG Yong   HAN Yuan  

Distributor: A Big Earth Data Platform for Three Poles

Email: poles@itpcas.ac.cn

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