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USGS Spectral Library Version 7 Sample Description

Kokaly, R.F., Clark, R.N., Swayze, G.A., Livo, K.E., Hoefen, T.M., Pearson, N.C., Wise, R.A., Benzel, W.M., Lowers, H.A., Driscoll, R.L., and Klein, A.J., 2017, USGS Spectral Library Version 7: U.S. Geological Survey Data Series 1035, 61 p., https://doi.org/10.3133/ds1035
For more information on the library, see: local link web link

TITLE: Lodgepole-Pine LP-Needles-2 DESCRIPT

DOCUMENTATION_FORMAT: PLANT

SAMPLE_ID: LP-Needles-2

PLANT_TYPE: Pine tree, coniferous evergreen, perennial

PLANT: Lodgepole Pine

LATIN_NAME: Pinus contorta Douglas ex Loudon

COLLECTION_LOCALITY: Yellowstone National Park, Wyoming

ORIGINAL_DONOR: Raymond Kokaly, USGS

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° 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° 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: Photo of site

END_SAMPLE_DESCRIPTION.

COMPOSITIONAL_ANALYSIS_TYPE: none

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

TRACE_ELEMENT_ANALYSIS:

TRACE_ELEMENT_DISCUSSION:

END_TRACE_ELEMENT_DISCUSSION.

SPECTROSCOPIC_DISCUSSION:

END_SPECTROSCOPIC_DISCUSSION.

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