Atmospheric Research
Many climate and surface energy balance studies involve monitoring the direct, diffuse and total components of solar spectral irradiance as they relate to the earth’s atmosphere and surface. In addition these irradiance measurements, ecosystem modeling studies often require the measurement of photosynthetic photon flux density (PPFD), photosynthetically active radiation (PAR), as well as canopy reflectance and radiance.
In order to improve these climate and ecosystem models, it is essential to measure the variation of these properties across, and within, a wide variety of ecological sites. In some cases these studies correlate these optical measurements with physical surface properties such as temperature, gas exchange, and, in the case of agricultural studies crop output.
Portable visible and near infrared spectroscopic technology is useful across a broad base of applications in atmospheric research. Spectroscopy is used for ground truth and airborne measurements, and calibration to satellite sensors both pre-flight and post-launch through vicarious field calibrations.
ASD’s ultra-portable FieldSpec® systems allow you to collect the measurements you need easily and quickly. ASD also offers accessories for all of your needs, including solar tracking stages and cosine receptors for direct irradiance measurements.
Select any of the links below to see work by other researchers using ASD instruments for atmospheric modeling and research.
The MODIS/ASTER Airborne Simulator (MASTER) — A New Instrument for Earth Science Studies
Post-Launch Validation of Multispectral Thermal Imager (MTI) Data and Algorithms
NREL Optical Metrology Laboratory
Planned Participants & Measurements for the 1999 Cruise of the NOAA R/V, Ronald Brown
Radiometer Measurements for Estimation of TOA Radiances
For more information about the ASD FieldSpec spectroradiometers used in atmospheric research for direct, diffuse, irradiance, and radiance measurements select the links below.
Products
- FieldSpec® 3 Portable Spectroradiometer
- FieldSpec® 3 Hi-Res Portable Spectroradiometer
- FieldSpec® 3 Max Portable Spectroradiometer
- FieldSpec® HandHeld Portable Spectroradiometer
Articles
- CAR Measurements for Chesapeake Lighthouse and Aircraft Measurements for satellite (CLAMS) Experiment
- Chesapeake Lighthouse and Aircraft Measurements for Satellites "CLAMS" July 12-Aug 2, 2001
- Direct solar spectral irradiance and transmittance measurements from 350 to 2500 nm
- Multispectral and Hyperspectral Remote Sensing of Alpine Snow Properties
- Empirical Proof of the Empirical Line
- Spectroscopy of Humid Tropical Forests
- A Very Short History of Reflectance Spectroscopy for Solar System Exploration: An Old Man's Recollection
- Mapping Methane Emissions Using Imaging Spectrometry
- Compositional Mapping the Solar System with Imaging Spectroscopy: The Role of Water and Nano-Particles
- The Use of a Portable Spectrometer in Support of the Calibration of AVIRIS, the Moon Mineralogy Mapper and other High Uniformity Imaging Spectrometers
- Estimation and Extrapolation of Soil Properties in the Siberian Tundra, using Field Spectroscopy
- Detection and discrimination of stress in bean (phaseolus vulgaris ‘tendergreen’.)
- Variation and Stability of Soil Reflectance Measurements with Different ASD Spectrometers Under Different Conditions
- Rapid Estimation of Brilliant Blue Concentrations in Soil by Diffusereflectance Spectroscopy
- A Comparison of Spectral Measurement Methods for Substratum and Benthic Features In Seagrass and Coral Reef Environments
- The NEON Imaging Spectrometer: Airborne Measurements of Vegetation Cover and Biochemistry for the Continental-scale NEON Observatory
- Radiometric Calibration Concept of Imaging Spectrometers for a Long-Term Ecological Remote Sensing Project
- High Performance Fore Optic Accessories and Tools for Reflectance and Radiometric Measurements with the ASD FieldSpec 3 Spectroradiometer
- Relationship Between Spectral Response and Changes of Water Level: La Purísima Dam, Guanajuato, Mexico
- Imaging Reflectance Spectroscopy in the National Ecological Observatory Network’s Airborne Observation Platform
