Herramientas Personales
Usted está aquí: Inicio » Topics » Agromet market place » Announcement: Global leaf area index dataset
INSAM Navigation
 

Announcement: Global leaf area index dataset

Última modificación 10/11/2010 10:58

A global leaf area index dataset is available for land modelling use from http://globalchange.bnu.edu.cn/research/lai.

A global leaf area index dataset is available for land modelling use from http://globalchange.bnu.edu.cn/research/lai.


Land surface and climate modelling requires continuous and consistent Leaf Area Index (LAI). High spatiotemporal resolution and long time record data are more in demand nowadays and will continue to be in the future. MODIS LAI products meet these requirements to some degree. However, due to the presence of cloud and seasonal snow cover, instrument problems and uncertainties of the retrieval algorithm, the current MODIS LAI products are spatially and temporally discontinuous and inconsistent which limits the application of LAI in land surface and climate modeling. In order to improve the MODIS LAI products on a global scale, we made optimal trade-offs among "accuracy", smoothness, efficiency, robust and stability in developing the algorithms. Also, we considered the characteristics of the MODIS LAI data and made the best use of quality control (QC) information. The products are composited every 8 days at 1-kilometer resolution on an Integerized Sinusoidal (IS) 10-degree grid, beginning from year 2000 day 49 and ending at year 2009 day 361.

Acciones de Documento
  • Share on Facebook
  • Imprimir