Melting snow mSnw01a

Spectrum Details

Modality

NIR

Category

liquid

Material Type

Oxide

Sample ID

mSnw1a, mSnw3, mSnw4, mSnw5, mSnw8, mSnw9, mSnw12, mSnw14, mSnw15, mSnw16

Collection Locality

Genesse area, Colorado

Spectral Purity

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

Composition / XRD

None # XRF, EPMA, ICP(Trace), WChem COMPOSITION_TRACE: None

Sample Description

This sample of fresh Colorado snow was collected in an ice chest an brought into the laboratory where is slowly melted over a period of a couple of hours. The initial snow depth was approximately 30 cm (1 foot). The sequence shows the change in the ice/water mix. From the pure white color of the snow, and the fact that the melted residual was very clear, we estimate that the snow had less than 1 ppm particulate contamination. Spectrum at mSnw16 had a puddle of approximately 3 cm of water on top of the snow (2-way optical path ~ 6cm). The sample was discarded after the spectral measurements were complete.

XRD Analysis

none

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126