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1 km/5 day Leaf Area Index Product over China and the Association of Southeast Asian Nations for 2013

LI Jing1LIU Qinhuo1YIN Gaofei1,2ZHONG Bo1WU Shanlong1PENG Jingjing1
1The State Key Laboratory of Remote Sensing Science Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences2Institute of Mountain Hazards and Environment,Chinese Academy of Sciences


Published:Jun. 2015

Visitors:2654       Data Files Downloaded:2487      
Data Downloaded:690657.10 MB      Citations:

Key Words:

Leaf area index (LAI),Multi-sensor fusion,China,Association of Southeast Asian Nations (ASEAN)


Leaf area index (LAI), defined as one sided green leaf area per unit ground area in broadleaf canopies and as the projected needle leaf area in coniferous canopies, is a critical structural variable for quantifying the interaction between the land surface and atmosphere. The 1 km/5-day leaf area index product over China and the Association of Southeast Asian Nations (ASEAN) was generated using multiple datasets, including Terra/MODIS, Aqua/MODIS, NOAA18/AVHRR, FY3A/VIRR, FY3B/VIRR, FY-3A/MERSI, and FY-3B/MERSI. The proposed multi-sensor fusion algorithm comprises of a set of Neural Networks tailored to various combinations of data quality, DEM, and land covers. The quality of LAI product was assessed based on model simulations, in-situ LAI measurements conducted in the upper and middle reaches of the Heihe River Basin in China, and the inter-comparisons against other LAI products (MODIS, GEOV1 and GLASS). Results show that the produced LAI have a higher accuracy and improved spatiotemporal continuity. The product is produced and distributed in 40 adjacent non-overlapping Sinusoidal tiles that are approximately 10°x10° (at the equator). The data format is *.tif which is compressed into 19 zip files totaling 5.17 GB. The data type is 16-bit signed integer, the scale factor is 0.01, and the unit is m2/m2.

Foundation Item:

Data Citation:

LI Jing,LIU Qinhuo,YIN Gaofei,ZHONG Bo,WU Shanlong,PENG Jingjing.1 km/5 day Leaf Area Index Product over China and the Association of Southeast Asian Nations for 2013 ( MuSyQ-LAI-1km-2013 ) [DB/OL].Global Change Research Data Publishing & Repository,2015.DOI:10.3974/geodb.2015.01.18.V1.

Data Product:

ID Data Name Data Size Operation
1 209396.19kb DownLoad
2 302816.59kb DownLoad
3 316650.58kb DownLoad
4 219867.51kb DownLoad
5 280676.25kb DownLoad
6 310199.43kb DownLoad
7 297794.81kb DownLoad
8 258394.58kb DownLoad
9 284561.28kb DownLoad
10 306425.94kb DownLoad
11 233647.54kb DownLoad
12 327813.14kb DownLoad
13 293861.84kb DownLoad
14 283781.42kb DownLoad
15 336419.73kb DownLoad
16 241890.12kb DownLoad
17 313724.97kb DownLoad
18 314737.09kb DownLoad
19 299033.15kb DownLoad

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