Projects/Programs

Displaying 1 - 25 of 29

Aperture area measurements

Ongoing

Radiometric and photometric measurements require defining apertures. The accuracy to which these measurements can be accomplished requires minimization of the

Applied spectroradiometry and imaging metrology

Ongoing

Spectroradiometers are widely used for acquiring colorimetric, photometric, and radiometric quantities with a single measurement for a variety of applications

Assessing the Internal Structure and Composition of Climatically-Relevant Atmospheric Particles

Ongoing

Atmospheric particles with long atmospheric lifetimes affect Earth's radiative balance. These particles typically consist of multiple chemical species. The

Audit of EPA Protocol Gas Suppliers

Ongoing

EPA Protocol gas mixture calibration standards are obtained by users to measure emissions of regulated gaseous species and ensure that they comply with US

Biogenic Modeling and Measurements

Ongoing

Fossil fuel CO2 emissions mix in the atmosphere with CO2 sources and sinks from the biospheric carbon cycle (i.e., photosynthesis and respiration from plants)

Bringing the SI to Global Atmospheric Greenhouse Gas Measurement

Ongoing

We are developing a comprehensive next-generation greenhouse gas (GHG) calibration system capable of extending SI traceability to global satellite remote

Building the next generation reference reflectometer

Ongoing

ROSI (Robotic Optical Scattering Instrument) is a new facility for measuring reflectance and scattering of materials in the ultraviolet to short-wave infrared

Calibration of the Extreme UV/X-ray Irradiance Sensor (EXIS) for the Geostationary Operations Environment Satellite R-Series Program (GOES-R)

Ongoing

Calibrations of the The Extreme ultraviolet/X-ray Irradiance Sensor (EXIS), which will be installed on the Geostationary Operations Environment Satellite R

Calibration of Space Weather Observational Instruments at NIST

Ongoing

Satellite and rocket instruments for solar ultraviolet and extreme-ultraviolet observation are calibrated using synchrotron radiation at SURF III.

Carbon Dioxide Measurements and Reference Materials

Ongoing

The Gas Sensing Metrology Group at NIST develops primary gravimetric standards for a wide variety of CO2 measurement uses. For the past 40+ years the group has

CCQM Activities in the Gas Analysis Working Group

Ongoing

NIST's Chemical Sciences Division Gas Sensing Metrology Group has participated in over 40 Consultative Committee for Amount of Substance-Metrology in Chemistry

Electromagnetic Field Strength Metrology

Ongoing

The Field Strength Metrology Project develops measurements of free-space electromagnetic (EM) emissions to help evaluate electronic interference of electronic

Fiber Sources and Applications Background Information

Ongoing

Optical frequency combs convert a laser source containing a single frequency of light into pulses that include thousands of frequencies. This project aims to

Frequency-comb-based Spectroscopy (Dual-Comb Spectroscopy)

Ongoing

Dual-comb spectroscopy is a technique that allows one to exploit the coherence, accuracy, and resolution of frequency combs for precision molecular spectroscopy

Fundamental Guided Wave Metrology

Ongoing

Radio-frequency (RF) waves and microwaves are involved with almost every facet of everyday life. Radio stations, television, wireless devices, satellite

Gas Concentration Standards Supporting Atmospheric Monitoring

Ongoing

Monitoring of Earth’s atmosphere for trace and greenhouse gases relies upon a system of high accuracy gas concentration standards. Greenhouse gases

GReenhouse Gas And Air Pollutants Emissions System (GRA2PES)

Ongoing

NOAA's Chemical Science Laboratory and NIST's Greenhouse Gas Measurement Program are working collaboratively to develop and maintain a new Department of

Greenhouse Gas and Atmospheric Trace Gas Measurements

Ongoing

Recent advances in dual-comb spectroscopy enable new opportunities in accurate and precise open-path atmospheric sensing of multiple atmospheric gases critical

High-accuracy Laboratory Spectroscopic Measurements of Atmospheric Gases for Monitoring Greenhouse Gases

Ongoing

Climate scientists are developing a new generation of spectrometers for the NASA-sponsored inventory of atmospheric greenhouse gases, most notably carbon

High-Precision Isotopic Reference Materials

Ongoing

Recent innovative advances in the design and manufacture of isotope ratio mass spectrometers (IRMS) have revolutionized the study of natural and man-induced

Hyperspectral Image Projector (HIP)

Ongoing

Detecting climate data with remote sensing instruments, providing state-of-the-art surveillance imagery for security and defense, or getting the most out of

A map of Indianapolis urban area shaded in gray with red numbered triangles

The Indianapolis (INFLUX) Urban Test Bed

Ongoing

The Indianapolis urban testbed began in 2010 as the Indianapolis Flux Experiment, or INFLUX. INFLUX was designed to verify top-down methods for estimating

Photo of the exterior upper portion of Caltech Hall showing weather stations on the corners of the roof.

The Los Angeles Megacity Carbon Project

Ongoing

The Los Angeles (LA) Megacity Carbon Project was established in 2013 as the second NIST urban test bed. The goal of this project is to use atmospheric

Low-Cost Sensor Platform

Ongoing

To support urban greenhouse gas (GHG) measurement capability, NIST is developing a low-cost sensor platform that can be deployed within existing measurement

Methods and Standards for Measurement of Atmospheric Aerosol Radiative Properties

Ongoing

Aerosols represent the second largest contributor to atmospheric heating after CO2. Aerosol optical properties are poorly understood, resulting in the largest

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