Radiation Measurement Overview

Principles

Definition

Radiation measurement is the scientific and technological discipline dedicated to the detection, characterization, and quantification of radiation fields, encompassing both ionizing and non-ionizing forms. This field employs specialized instrumentation and methodologies to assess radiation properties like dose, energy, type, and spatial/temporal distribution for applications spanning safety, environmental monitoring, medical physics, and fundamental research.

Ontological type

Core Instrumentation

Measurement Quantities

Dosimetry Applications

Key developments

Key Figures

Radiative Measurement Foundations era

R. F. Woodman[1], associated with Cornell University[3] and the University of Illinois Urbana-Champaign[4], contributed to radiative measurement foundations in the Radiative Measurement Foundations era. His 1974 Radar Observations of Winds and Turbulence in the Stratosphere and Mesosphere[7] paper advanced remote-sensing approaches to atmospheric dynamics by providing wind and turbulence measurements that underpinned radiative-transfer concepts and energy-budget assessments in this era. G. J. Rottman[2], affiliated with Johns Hopkins University[5] and the University of Colorado Boulder[6], contributed to the Radiative Measurement Foundations era through systematic solar spectral irradiance studies. His papers The solar absolute spectral irradiance 1150–3173 Å: May 17, 1982[8], The solar spectral irradiance 1200–2550 Å at solar maximum[9], and Solar spectral irradiance, 120 to 190nm, October 13, 1981 ‐ January 3, 1982[10] collectively established reference solar inputs across UV to EUV wavelengths, enabling radiometric calibration of spaceborne radiometers and informing radiative-transfer parameterizations used in this era.

Aerosol Retrieval and Forcing era

S. A. Clough [1] is a leading figure in aerosol radiative transfer during this era, with appointments at University of California, Los Angeles [3] and California Institute of Technology [4]. S. A. Clough [1] helped develop Radiative transfer for inhomogeneous atmospheres: RRTM, a validated correlated-k model for the longwave [7], and Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models [8], advances that underpinned reliable radiative transfer-based forcing estimates in this era. E. J. Mlawer [2] was based at Brandeis University [5] and University of Maryland, Baltimore County [6] during this era. E. J. Mlawer [2] contributes to Radiative transfer for inhomogeneous atmospheres: RRTM, a validated correlated-k model for the longwave [7] and Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models [8], which provided validated, efficient radiative transfer tools that underpinned aerosol radiative forcing estimates of the era.

Integrated Energy-Balanced Synthesis era

T. F. Eck [1] is a pivotal figure in radiation measurement during the Integrated Energy-Balanced Synthesis era, with affiliations spanning University of Maryland, Baltimore [3] and RWTH Aachen University [4]. His contributions include the global evaluation of MODIS dark-target aerosol products over land [7], advancements in the Aerosol Robotic Network Version 3 database with automated near-real-time quality control [8], and the Multiangle Imaging SpectroRadiometer aerosol product assessment [9], which collectively advanced cross-sensor aerosol characterization and calibration critical to closing the Earth’s radiation budget in this era. Michael Schulz [2] is a prominent figure in this era, affiliated with Sorbonne Université [5] and Université de Versailles Saint-Quentin-en-Yvelines [6]. His key contributions include the CAMS reanalysis of atmospheric composition [10], Radiative forcing of the direct aerosol effect from AeroCom Phase II simulations [11], and Global-scale black carbon profiles observed in the remote atmosphere and compared to models [12], which underpin integrated atmospheric composition assessment, aerosol forcing estimation, and source attribution essential to energy-balanced radiation budgets.