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Instrument

XRF
X-Ray Fluorescence Spectrometer

X-ray Fluorescence (XRF) is a ground-based in situ spectroscopy method used to determine the chemical composition of environmental samples. It measures the fluorescent X-rays emitted from the sample when excited by an X-ray source (0.1-10 nm) to identify its chemical composition. The two main XRF techniques are energy-dispersive and wavelength-dispersive. In Earth Science, XRF is employed to analyze geological samples, soils and sediments, vegetation, atmospheric particulate matter, and water samples.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Overview

Instrument Details

Measurement Type

Spectrometer/Radiometer

Measurement/Variables

Earth Science > Spectral/engineering > X-ray

Vertical Measurement Regions

Land Surface

Temporal Resolution

Variable

Spatial Resolution

Point

Measurement Frequency

299979.2-2997924.58 THz

Calibration Details

Currently unavailable

Online Information

Lead Investigator
Currently unavailable
Technical Contact
Currently unavailable
Instrument Maker
Varies
Funding Source
Currently unavailable
Overview Publications
Currently unavailable
Repository
- Unpublished

Instrument Operation

Platform

Campaigns, where the platform was used with this instrument

Field site of rain gauges and soil moistures sensors from the IFloodS campaign

Field site of rain gauges and soil moistures sensors from the IFloodS campaign

Field Site

76 Campaigns · 175 Instruments

Pacific 2001 Air Quality Study

Lower Fraser Valley, British Columbia, Canada

view all deployment dates

· 8 Data Products

Data Products

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns

Platforms

Formats

DISCOVER-AQ California Deployment Fresno Ground Site Data10.5067/ASDC/SUBORBITAL/DISCOVERAQ_California_Ground_Fresno_Data_1

CampaignsDeriving Information on Surface Conditions from COlumn and VERtically Resolved Observations Relevant to Air Quality

PlatformsPermanent Land Site

FormatsICARTT

NARSTO Pacific 2001 Air Quality Study (PAC2001) Golden Ears Gaseous and Particulate Matter (PM) Data10.5067/ASDCDAAC/NARSTO/0013

CampaignsPacific 2001 Air Quality Study

PlatformsField Site

FormatsASCII

NARSTO Pacific 2001 Air Quality Study (PAC2001) Cassiar Tunnel Gaseous and Particle Mass and Composition Data10.5067/ASDCDAAC/NARSTO/0016

CampaignsPacific 2001 Air Quality Study

PlatformsField Site

FormatsASCII