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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: Seawater_Open_Ocean SW2 lwch DESCRIPT

DOCUMENTATION_FORMAT: VOLATILE

SAMPLE_ID: SW1

MATERIAL_TYPE: Water

MATERIAL: Ocean Water

FORMULA: H2O +chl

FORMULA_HTML: H2O +chl

COLLECTION_LOCALITY: Coastal Transition Zone Experiment, station #46, Pacific Ocean.

COLLECTION_LATITUDE: 21 12. W # degrees and decimal minutes (N or S)

COLLECTION_LONGITUDE: 59 27. N # degrees and decimal minutes (W or E)

DATUM: Not Available # coordinate datum

ORIGINAL_DONOR: Ken Carder, U. Florida

CURRENT_SAMPLE_LOCATION: Not Available

ULTIMATE_SAMPLE_LOCATION: Not Available

SAMPLE_DESCRIPTION:

Seawater, Atlantic ocean

Marine Light Mixed Layer, sta. G3 , 8-16-91 (August 16, 1991), 1400 local time (1500Z) Lat: 59 27 N Long: 21 12 W.

Surface mean Chlorophyll a = 2.97 ug/l (microgram/liter)
Surface phaeo a = 0.444 ug/l (microgram/liter)
high latitude, medium chlorophyll.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Not Available

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

Surface mean Chlorophyll a = 2.97 ug/l (microgram/liter)
Surface phaeo a = 0.444 ug/l (microgram/liter)
high latitude, medium chlorophyll.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

The spectrum shown is the original data interpolated to our wavelengths and water first surface reflectance added. The reflectance (r) of the first surface reflection was computed using standard water index of refraction (n), where r = (n-1)2 / (n+1)2.

Original spectral history traces to: spd0109, record 252.

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 9627 0.2-3.0µm 200 g.s.=


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