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Clark et. al. 2003 USGS Open File Report 03-395
Spectral Library splib05a Sample Description

(For further information on spectrsocopy, see: http://speclab.cr.usgs.gov)

TITLE: melting_snow mSnw+veg DESCRIPT

DOCUMENTATION_FORMAT: VOLATILE

SAMPLE_ID: mSnw1a+0.5veg, mSnw3+0.5veg, mSnw8+0.5veg, mSnw9+0.5veg, mSnw16+0.25veg, mSnw16+0.5veg, veg= Pinion Pine ANP92-14A

MATERIAL_TYPE: Oxide + Vegetation mixture

MATERIAL: Water_Ice (snow) + Vegetation Pinion Pine mixture

FORMULA: H2O + Vegetation Pinion Pine

FORMULA_HTML: H2O + Vegetation Pinion Pine

COLLECTION_LOCALITY: Snow: Genesse area, Colorado + Pinion Pine: Arches National Park

COLLECTION_LATITUDE: Not Available # degrees and decimal minutes (N or S)

COLLECTION_LONGITUDE: Not Available # degrees and decimal minutes (W or E)

DATUM: Not Available # coordinate datum

ORIGINAL_DONOR: constructed mixture

CURRENT_SAMPLE_LOCATION: Not Available

ULTIMATE_SAMPLE_LOCATION: Not Available

SAMPLE_DESCRIPTION:

Constructed mixtures sequence for use in mapping melting snow in forests.

melting_snow mSnw1a + 0.5 Pinion Pine ANP92-14A
melting_snow mSnw3 + 0.5 Pinion Pine ANP92-14A
melting_snow mSnw8 + 0.5 Pinion Pine ANP92-14A
melting_snow mSnw9 + 0.5 Pinion Pine ANP92-14A
melting_snow mSnw16 + 0.25 Pinion Pine ANP92-14A
melting_snow mSnw16 + 0.5 Pinion Pine ANP92-14A

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

none

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

No additional compositional details available.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

not available

END_MICROSCOPIC_EXAMINATION.

IMAGE_OF_SAMPLE: Not Available

SPECTROSCOPIC_DISCUSSION:

Because all spectra used to construct the mixture are spectrally pure, these computed spectra are rated spectrally pure. Observed absorptions are the chlorophyll in the visible, followed by water absorptions into the near-infrared. But the water absorptions are combinations due to water in the pinion pine, liquid water, and ice.

END_SPECTROSCOPIC_DISCUSSION.

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

LIB_SPECTRA_HED: where Wave Range Av_Rs_Pwr Comment
LIB_SPECTRA: splib05a r 9320 0.2-3.0µm 200 g.s.=
LIB_SPECTRA: splib05a r 9343 0.2-3.0µm 200 g.s.=
LIB_SPECTRA: splib05a r 9389 0.2-3.0µm 200 g.s.=
LIB_SPECTRA: splib05a r 9434 0.2-3.0µm 200 g.s.=
LIB_SPECTRA: splib05a r 9527 0.2-3.0µm 200 g.s.=
LIB_SPECTRA: splib05a r 9574 0.2-3.0µm 200 g.s.=


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