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Abstract
Leaf Area Index (LAI) was measured in July-August 2014 in 36 15-m diameter plots located throughout the Calhoun CZO LiDAR flight area on approximately the same dates as the 2014 leaf-on LiDar flight. In each plot, LAI was measured in six directions (W, E, NE, SW, SE, NE) relative to the plot center. The individual readings are presented here. LAI was measured using a LAI-2000 (LI-COR Inc., Lincoln, NE).
Subject Keywords
Coverage
Spatial
Temporal
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Content
ReadMe.md
CCZO -- Vegetation -- Leaf Area Index -- Calhoun CZO -- (2014)
OVERVIEW
Description/Abstract
Leaf Area Index (LAI) was measured in July-August 2014 in 36 15-m diameter plots located throughout the Calhoun CZO LiDAR flight area on approximately the same dates as the 2014 leaf-on LiDar flight. In each plot, LAI was measured in six directions (W, E, NE, SW, SE, NE) relative to the plot center. The individual readings are presented here. LAI was measured using a LAI-2000 (LI-COR Inc., Lincoln, NE).
Creator/Author
Cook, Charles W.
CZOs
Calhoun
Contact
Will Cook, Box 90328, Nicholas School of the Environment, Duke University, Durham, NC 27708. cwcook@duke.edu
SUBJECTS
Disciplines
Biology / Ecology
Topics
Vegetation
Subtopic
Leaf Area Index
Keywords
leaf area index|Calhoun
Variables
Date/Time|LAI|se LAI|DIFN|MTA|se MTA|SMP|plot|direction
Variables ODM2
Wind direction|Leaf area index (LAI)
TEMPORAL
Date Start
2014-07-30
Date End
2014-08-06
SPATIAL
Field Areas
Calhoun CZO Research Area 1|Calhoun CZO Research Area 4|Calhoun Experimental Forest and Eco-hydrology Experiments
Location
Calhoun CZO
North latitude
34.64774494
South latitude
34.57495247
West longitude
-81.77893686
East longitude
-81.66329492
REFERENCE
Publications of this data
Majasalmi, T., Palmroth, S., Cook, W., Brecheisen, Z., Richter, D. (2015). Estimation of LAI, fPAR and AGB based on data from Landsat 8 and LiDAR at the Calhoun CZO. Calhoun CZO 2015 Summer Science Meeting
CZO ID
4679
COMMENTS
Comments
LAI (Leaf Area Index) = foliage area per unit ground surface area (dimensionless);
DIFN (Diffuse Non-interceptance) = fraction of sky visible (dimensionless);
MTA = Mean Tip Angle;
SMP = Number of A/B pairs included in the computation;
se = standard error.
Above-canopy readings were taken simultaneously with the below-canopy readings in a nearby open field. 90 degree view caps were used to block and possible extraneous readings from the operator.
Additional Metadata
| Name | Value |
|---|---|
| czos | Calhoun |
| czo_id | 4679 |
| comments | LAI (Leaf Area Index) = foliage area per unit ground surface area (dimensionless); DIFN (Diffuse Non-interceptance) = fraction of sky visible (dimensionless); MTA = Mean Tip Angle; SMP = Number of A/B pairs included in the computation; se = standard error. Above-canopy readings were taken simultaneously with the below-canopy readings in a nearby open field. 90 degree view caps were used to block and possible extraneous readings from the operator. |
| keywords | leaf area index, Calhoun |
| variables | Date/Time, LAI, se LAI, DIFN, MTA, se MTA, SMP, plot, direction |
| disciplines | Biology / Ecology |
Related Resources
| This resource is referenced by | Majasalmi, T., Palmroth, S., Cook, W., Brecheisen, Z., Richter, D. (2015). Estimation of LAI, fPAR and AGB based on data from Landsat 8 and LiDAR at the Calhoun CZO. Calhoun CZO 2015 Summer Science Meeting |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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