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prove_landcover_lai PROVE Land Cover and Leaf Area of Jornada Experimental Range, New Mexico, 1997 WHITE, M.A.; ASNER, G.P.; NEMANI, R.R.; PRIVETTE, J.L.; RUNNING, S.W. PROVE Land Cover and Leaf Area of Jornada Experimental Range, New Mexico, 1997 2003 Oak Ridge, Tennessee, U.S.A. Oak Ridge National Laboratory Distributed Active Archive Center Online Files doi:10.3334/ORNLDAAC/665 665

ABSTRACT: Field measurement of shrubland ecological properties is important for both site monitoring and validation of remote-sensing information. During the NASA Earth Observing System Prototype Validation Exercise (PROVE) at the Jornada Experimental Range, New Mexico, on May 20-30, 1997, we calculated plot-level plant area index, leaf area index, total fractional cover, and green fractional cover with data from four instruments: (1) a Dycam Agricultural Digital Camera (ADC), (2) a LI-COR LAI-2000 plant canopy analyzer, (3) a Decagon sunfleck ceptometer, and (4) a laser altimeter. Estimates from the LAI-2000 and ceptometer were very similar (plant area index 0.3, leaf area index 0.22, total fractional cover 0.19, green fractional cover 0.14), but the ADC produced values 5 to 10% higher. Laser altimeter values, depending on the height cutoff used to establish total fractional cover, were either higher or lower than the other instruments' values: a 10-cm cutoff produced values approximately 80% higher, whereas a 20-cm cutoff produced values approximately 30% lower.

1997-05-13 1997-05-31 COMPLETE 32.5 32.5 -106.75 -106.75 ESIP Earth Science Information Partners Program EOSDIS Earth Observing System Data Information System TECHNICAL CONTACT ORNL DAAC User Services ORNL DAAC USER SERVICES OFFICE OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE 37831 USA DIF AUTHOR ORNL DAAC User Services ornldaac@ornl.gov (865) 241-3952 (865) 574-4665

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Oak Ridge Tennessee 37831-6407 USA EARTH SCIENCE BIOSPHERE VEGETATION CANOPY CHARACTERISTICS EARTH SCIENCE LAND SURFACE LAND USE/LAND COVER LAND USE/LAND COVER CLASSIFICATION EARTH SCIENCE LAND SURFACE LAND USE/LAND COVER LAND USE/LAND COVER CLASSIFICATION EARTH SCIENCE SPECTRAL/ENGINEERING VISIBLE WAVELENGTHS VISIBLE IMAGERY LICOR LEAF AREA METER FIELD INVESTIGATION EARTH SCIENCE CAMERAS FIELD INVESTIGATION EARTH SCIENCE SUNFLECK CEPTOMETER FIELD INVESTIGATION EARTH SCIENCE LIDAR ALTIMETERS FIELD INVESTIGATION EARTH SCIENCE DIGITAL CAMERA LI-COR LAI-2000 DYCAM AGRICULTURAL DIGITAL CAMERA GET DATA http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=665 VIEW RELATED INFORMATION https://daac.ornl.gov//PROVE/guides/prove_landcover_lai_guide.html PROVE Land Cover and Leaf Area of Jornada Experimental Range, New Mexico, 1997 USA/NASA ENGLISH GCMD CEOS IDN DIF VERSION 9.0