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DOCUMENTATION_FORMAT: PLANT
SAMPLE_ID: CA01-ARVI-7
PLANT_TYPE: California chaparral shrub
PLANT: Manzanita, sticky whiteleaf manzanita
LATIN_NAME: Arctostaphylos viscida Parry
COLLECTION_LOCALITY: Flagstaff Hill, in El Dorado county, approximately 42 km northeast of Sacramento, California
COLLECTION_LATITUDE: 38.7810191 deg. N
COLLECTION_LONGITUDE: 121.085236 deg. W
DATUM: WGS-84
ORIGINAL_DONOR: Raymond F. Kokaly, USGS
SAMPLE_DESCRIPTION:
This spectrum is the average reflectance of 15 field measurements of stacked green leaves of sticky whiteleaf manzanita (Arctostaphylos viscida). The measurements were made at 12:10 pm local time on September 3, 2001. These spectra were made using an ASD FullRange (653) in reflectance mode, relative to a Spectralon reference panel. The bare fiber of the spectrometer was used to measure the reflectance spectra of the stacked leaves. The fiber optic cable was pointed at nadir (straight down) 6 cm above the leaves and moved above the area of stacked leaves during the measurement. The instrument was programmed to record 6 second averages of reflectance (thus, each recorded spectrum was an average of 60 individual measurements). An average spectrum was computed from the recorded measurements and converted to absolute reflectance by multiplying by the reflectance spectrum of the Spectralon reference panel. Six manzanita shrubs were measured were also measured at this location and are included in this spectral library, samples names: CA01-ARVI-1 to CA01-ARVI-6.
This spectrum was used in the following publication:
Swayze, G.A., Kokaly, R.F., Higgins, C.T., Clinkenbeard, J.P., Clark, R.N., Lowers, H.A, Sutley, and S.J., 2009,
Mapping potentially asbestos-bearing rocks using imaging spectroscopy, Geology Volume 37, pages 763-766.
http://dx.doi.org/10.1130/G30114A.1
IMAGE_OF_SAMPLE:
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