[1] Univ Helsinki, Dept Geog, FIN-00014 Helsinki, Finland
来源:
2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5
|
2009年
关键词:
High resolution satellite data;
Large scale LAI inversion;
Vegetation index;
Scale effect;
LEAF-AREA INDEX;
D O I:
10.1109/IGARSS.2009.5417816
中图分类号:
P [天文学、地球科学];
学科分类号:
07 ;
摘要:
This study is aimed at demonstrating the feasibility of the large scale LAI inversion algorithms using red and near-infrared reflectance obtained from high resolution satellite imagery. The algorithms are developed based on the principle commonly used for ground-based optical determination of LAI by assuming that high resolution remote sensing imagery is capable to distinguish shadows/gaps from canopy Gap fraction was obtained from scaled difference of Normalized difference Vegetation Index (NDVI), Scaled Difference Vegetation Index (SDVI), and Modified Soil-Adjusted Vegetation Index (MSAVI) from SPOT 10 m pixel Imagery. The sensitivity of the methodology was evaluated for spatial resolution effects, effectiveness test with ground-based measurement, simulated spectral data and MODIS LAI product. The approaches resulted in reasonably good accuracy.
机构:
NOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USANOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USA
Gutman, G
Ignatov, A
论文数: 0引用数: 0
h-index: 0
机构:
NOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USANOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USA
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
LANGE, JF
BEYAERT, PJ
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
BEYAERT, PJ
VANVUGT, H
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
VANVUGT, H
TYTGAT, GNJ
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
TYTGAT, GNJ
VANGOOL, J
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
机构:
NOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USANOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USA
Gutman, G
Ignatov, A
论文数: 0引用数: 0
h-index: 0
机构:
NOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USANOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USA
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
LANGE, JF
BEYAERT, PJ
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
BEYAERT, PJ
VANVUGT, H
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
VANVUGT, H
TYTGAT, GNJ
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS
TYTGAT, GNJ
VANGOOL, J
论文数: 0引用数: 0
h-index: 0
机构:
UNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDSUNIV AMSTERDAM, ACAD MED CTR, EXPTL MED LAB, 1105 AZ AMSTERDAM, NETHERLANDS