NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Gap probability - Measurements and models of a pecan orchardMeasurements and models are compared for gap probability in a pecan orchard. Measurements are based on panoramic photographs of 50* by 135 view angle made under the canopy looking upwards at regular positions along transects between orchard trees. The gap probability model is driven by geometric parameters at two levels-crown and leaf. Crown level parameters include the shape of the crown envelope and spacing of crowns; leaf level parameters include leaf size and shape, leaf area index, and leaf angle, all as functions of canopy position.
Document ID
19930063757
Document Type
Conference Paper
Authors
Strahler, Alan H. (Boston Univ. MA, United States)
Li, Xiaowen (Boston Univ. MA; Chinese Academy of Sciences, Inst. of Remote Sensing Application, Beijing, China)
Moody, Aaron (Boston Univ. MA, United States)
Liu, YI (Chinese Academy of Sciences Inst. of Remote Sensing Application, Beijing, China)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: IGARSS '92; Proceedings of the 12th Annual International Geoscience and Remote Sensing Symposium, Houston, TX, May 26-29, 1992. Vol. 1 (A93-47551 20-43)
Subject Category
EARTH RESOURCES AND REMOTE SENSING
Funding Number(s)
CONTRACT_GRANT: NSF INT-90-14263
CONTRACT_GRANT: NAGW-2082
Distribution Limits
Public
Copyright
Other

Related Records

IDRelationTitle19930063554Analytic PrimaryIGARSS '92; Proceedings of the 12th Annual International Geoscience and Remote Sensing Symposium, Houston, TX, May 26-29, 1992. Vols. 1 & 2