DOCUMENTATION_FORMAT: PLANT
SAMPLE_ID: ES-Needls-1
PLANT_TYPE: Perennial Tree, coniferous evergreen
PLANT: Engelmann Spruce
LATIN_NAME: Picea engelmannii
COLLECTION_LOCALITY: Yellowstone National Park, Wyoming
ORIGINAL_DONOR: Raymond F. Kokaly, USGS
SAMPLE_DESCRIPTION:
Reflectance of needles of Engelmann spruce (Picea engelmannii) measured in the laboratory. The blue-green needles were stacked in a sample cup and the head of the spectrometer fiber optic cable was passed over the needles.
The vegetation was sampled in Yellowstone National Park and kept in a plastic bag, on ice, for four days until measured. As a result of the long period of storage, some water loss and pigment degradation may have occurred by the time of measurement.
IMAGE_OF_SAMPLE: none
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