URMS/AMSSP (Universal Radiation Measurement System/Airborne Multi-Spectral Sunphoto- and Polarimeter)

2009 ◽  
Author(s):  
Thomas Ruhtz ◽  
René Preusker ◽  
Andre Hollstein ◽  
Jonas v. Bismarck ◽  
Marco Starace ◽  
...  
Keyword(s):  
Measurement System ◽  
Radiation Measurement

Sensor intercomparison of distributed surface radiation measurement system

2015 ◽  
Author(s):  
Baocheng Dou ◽  
Jianguang Wen ◽  
Xiuhong Li ◽  
Qiang Liu ◽  
Qing Xiao ◽  
...  
Keyword(s):  
Measurement System ◽  
Surface Radiation ◽  
Radiation Measurement

scholarly journals REALIZATION AND CALIBRATION OF THE WIRELESS UV RADIATION MEASUREMENT SYSTEM

2011 ◽  
Vol 2 (2) ◽  
pp. 164-170 ◽  
Author(s):  
Z. Petrušić ◽  
U. Jovanović ◽  
I. Jovanović ◽  
D. Mančić
Keyword(s):  
Uv Radiation ◽  
Measurement System ◽  
Radiation Measurement

scholarly journals Comparison of different methods to retrieve effective snow grain size in central Antarctica

2017 ◽  
Author(s):  
Tim Carlsen ◽  
Gerit Birnbaum ◽  
André Ehrlich ◽  
Johannes Freitag ◽  
Georg Heygster ◽  
...  
Keyword(s):  
Grain Size ◽  
Measurement System ◽  
Surface Albedo ◽  
Austral Summer ◽  
Surface Energy Budget ◽  
Research Station ◽  
Polar Regions ◽  
Radiation Measurement ◽  
In Situ Observations

Abstract. The effective size of snow grains (reff) affects the reflectivity of snow surfaces and thus the local surface energy budget in particular in polar regions. Therefore, the specific surface area (SSA) was monitored for a two-month period in central Antarctica (Kohnen research station) during austral summer 2013/14. The data were retrieved on the basis of spectral surface albedo measurements collected by the COmpact RAdiation measurement System (CORAS, ground-based) and the Spectral Modular Airborne Radiation measurement sysTem (SMART, airborne). The Snow Grain Size and Pollution amount (SGSP) algorithm, originally developed to analyze spaceborne reflectance measurements by the MODerate Resolution Imaging Spectroradiometer (MODIS), was modified and applied to the ground-based and airborne observations collected in this study. Furthermore, spectral ratios of surface albedo at 1280 nm and 1100 nm wavelength were used to reduce the retrieval uncertainty. Additionally, the algorithm originally developed for cloudless conditions was adapted to handle overcast conditions. Optical in situ observations of SSA utilizing an IceCube device were used to validate the retrieval results. The SSA retrieved from CORAS observations varied between 27 m2 kg-1 and 86 m2 kg-1. Snowfall events caused distinct SSA maxima which were often followed by a gradual decrease in SSA due to snow metamorphism and wind-induced transport of fresh fallen ice crystals (vice versa for reff). SSA retrieved by data from CORAS and MODIS agree with the in situ observations within the ranges given by the measurement uncertainties. However, SSA retrieved by the airborne SMART observations underestimated the ground-based observations by a factor of 2.1 (overestimation of reff).

Low-Level Radiation Measurement System With Magnetically Levitated Electrode Ionization Chamber Detector

2006 ◽  
Vol 53 (4) ◽  
pp. 2276-2280 ◽  
Author(s):  
T. Kawaguchi ◽  
K. Futagami ◽  
M. Matoba ◽  
G. Wakabayashi ◽  
N. Ikeda ◽  
...  
Keyword(s):  
Measurement System ◽  
Ionization Chamber ◽  
Radiation Measurement ◽  
Low Level ◽  
Magnetically Levitated
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