Lodgepole-Pine LP-Needles-2

Spectrum Details

Modality

NIR

Category

vegetation

Material Type

PLANT

Sample ID

LP-Needles-2

Collection Locality

Yellowstone National Park, Wyoming

Spectral Purity

1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Composition / XRD

none

Sample Description

Reflectance of oven-dried needles of lodgepole pine (Pinus contorta) measured in the laboratory. The dried, green needles were stacked in a sample cup and the head of the spectrometer fiber optic cable was passed over the needles. The needles were dried in an oven for 72 hours at 36&#176 Celsius. The vegetation was sampled in Yellowstone National Park and kept in a plastic bag, on ice, for four days until measured. As a result, some of the plant moisture was lost during the storage time. Also, some of the chlorophyll was likely degraded. A related spectrum (sample ID = LP-Needles-1) of this collection of lodgepole needles was measured before oven drying the needles for 72 hours at 30&#176 Celsius. Fresh weight of the needles was 6.38 g and dry weight was 3.15 grams. Spectrum published in: Kokaly, R.F., Rockwell, B.W., Haire, S.L., and King, T.V.V., 2007, Characterization of post-fire surface cover, soils, and burn severity at the Cerro Grande Fire, New Mexico, using hyperspectral and multispectral remote sensing, Remote Sensing of Environment, Volume 106, Issue 3, Pages 305-325. http://dx.doi.org/10.1016/j.rse.2006.08.006 IMAGE_OF_SAMPLE:

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126